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eHam Forums => Antennas and Towers and more => Topic started by: W3UA on June 23, 2002, 10:27:27 PM



Title: Maxx-com tuner -- is it scam or what?
Post by: W3UA on June 23, 2002, 10:27:27 PM
I recently discovered the following web site:
http://www.maxx-com.com/index.html

To me, it sounds like a black magic or April 1 joke. I wish such a marvel really exist, but can hardly believe. They claim 15,000 customers... Did anybody really see this thing?

Just curiuos. Any opinions appreciated.

Gene W3UA


Title: Maxx-com tuner -- is it scam or what?
Post by: KL7IPV on June 24, 2002, 12:14:40 AM
Years ago, I can't remember just how long; there was a manufacturer of antennas. I think the nmae was similar to this one and they claimed the antenna would match every frequency and needed no tuner to work. Snake oil? It seems that the antenna was really just a 50 ohm dummy load in the air with wires strung off the ends. It did load every band and the receive seemed to be good. I can't say how it worked for transmitting on the far end reception, but I haven't heard about it for a long time. The name sounded familiar when I read this posting. Could this be the same thing? A sealed dummy load that requires no tuning and feeds wire off the termination? I don't know, but it might be worth checking into.
73
Frank
KL7IPV


Title: Maxx-com tuner -- is it scam or what?
Post by: KA7ENP on June 24, 2002, 03:39:02 PM
Maxx.com sounds like just another variation on Maxcom, the product described sounds like the product that they were pitching (back in the late 80's I believe), and the figure claimed for units sold sounds a little too familiar to me to be mere coincidence. These 'autotuners' of theirs were found to be in a QST review little more than dummy loads shunted across the terminals of a balun, solidly potted in die cast metal boxes along with scrap printed circult boards, which worked about as well with as without antenna wires attached to the terminals of the device. If in fact we are dealing with the same crowd in Florida as before it comes very close to being a scam if in fact it is not one outright. For the same amount of money you can get a genuine autotuner that will give you vastly superior results for the dollar spent.  


Title: Maxx-com tuner -- is it scam or what?
Post by: WB6BYU on June 27, 2002, 05:06:52 PM
Based on the popularity of some antennas, some folks clearly care
more about having a low SWR than having a strong signal.  For
those folks, the Maxcom (or Maxx-Com) can be a handy unit:  in
the ARRL tests the SWR was only 1.5 : 1 with NO ANTENNA
CONNECTED.  If you do hook wires to the unit, chances are that
they will radiate SOME amount of signal, so you can look at it as
a way to turn your transceiver into a QRP rig.  (If they can make
QSOs with 1 to 5 watts output, then you probably can with 100
watts into a Maxcom.)

You can make your own by connecting a 50 to 100 ohm resistor
across the feedpoint of your antenna.  (The expensive part is
getting a resistor that will handle 100 watts or more.)  Or you can
accomplish a similar effect with a long length of Radio Shucks
cheapest RG-58 coax:  if the SWR is too high with no antenna
connected, soaking the far end in a bucket of salt water for a few
weeks will greatly increase the attenuation of the cable and
improve the SWR.


Title: Maxx-com tuner -- is it scam or what?
Post by: EB74MX on August 07, 2002, 03:57:37 PM
My name is Eric Bentschneider and I am the general manager of Maxx-Com Antenna Tuners. These letters ridiculing Maxx-Com are unfair, unjust, and grossly incorrect. It's ironic, but the people who unfairly criticize something they know little or nothing about just happen to be the same people who have never used a Maxx-Com tuner. We have been in business since 1983, we do have over 15,000 satisfied customers, and we have been used successfully by the all branches of the U.S military. (In the post 9/11 world we would make that claim if it were untrue? As a proud American I say to you the answer is an emphatic "Never!!!") The design is ingenious, the tuners work, and I have a thick file of testimonials to back this up. There is no dummy load and anyone suggesting as much should look in the mirror to see what a real dummy looks like. Are Maxx-Com tuners more sensitive to improper installations? Yes. They need to be installed per manufacturer's specs, but once installed properly, boy do they work. Please take the time to visit our web site: www.maxx-com.com. Everything you see there is factual. 100%. This is a great product invented with painstaking care by an honorable man. Don't knock it if you haven't tried it. EB


Title: Maxx-com tuner -- is it scam or what?
Post by: KB9QDC on December 02, 2002, 07:02:28 PM
Okay, call me a sucker, but I am still interested in this thing...if it works.

Is there any article in any Ham publication that campares the Maxx-comm head-to-head with say, a AH-4? Signal strength, radiated power, SWR, etc?

It seems to me that this could be cleared up pretty easily.

Thanks for any advice!

KB9QDC


Title: Maxx-com tuner -- is it scam or what?
Post by: KB9QDC on December 05, 2002, 08:14:21 PM
Come on guys, no replies? Very un-Ham: Everybody has $0.02 to throw in!



Title: Maxx-com tuner -- is it scam or what?
Post by: K4OG on December 08, 2002, 08:21:07 AM
After reading some of the comments regarding the Maxx-com tuner/coupler by NQP's (thats an old Navy term for "None Qualified Pukes". Which means, I've never owned a Maxx-Com tuner, and I don't know anyone has one, but I'm willing to pass along "scuttlebutt" and state my uniformed opinion).

Now I have a Maxx-Com 1000D. That is the Military, Commercial unit rated a 1KW.  But before I get to the tuner some background is called for.

The antenna situation here is rather limited. I run a 150 foot dipole with 450 ohm ladder line to a MFJ 989 transmatch.  I could tune all band, even force it onto 160 meters, but the antenna is just to short to be an effective radiator on the top band.

I decided to turn the room I was using for the shack into a computer/TV room, so I moved the to the basement. But I also wanted to keep a tranceiver in the old shack and be able to operate from either room, without having to do anything more than flip a coax switch. That meant that the manual tuner had to go.

My first approach to the tuner situation was the SGC SG-235 automatic tuner.  Now this is a rather large unit.  My 150 dipole does not have center support, so hanging the SG-235 at the dipole feed point was not an option. Just too big and heavy. But, as per the instruction manual, I should be able to run up to 200 feet of open wire line (300-600 ohm) between the tuner and the dipole. With about 70 feet of 450 ohm ladder line between the tuner and the dipole it tuned all bands just fine.  The major problem was RFI..and I mean big time!  Turns out the ladder line was radiating like crazy.  About 50 feet of the ladder line traveled parallel to and about 8 inches away from the coax's that connect two Dish Network antennas for the HDTV system. No when I say TVI...I don't mean just a little cross-hatch.  I mean wipe-out! Re-routing the feed line reduce the problem, but still unacceptable TVI wise, and the physical problem with ladder line was not practical.  Now I might have been able to force this configuation back into a balanced condition with choke baluns, etc., but to the point, the SG-235 is a well constructed unit, but it just isn't intended to work into a balanced antenna system. On one end of the unit is an insulated post, about 16 inches away on the other end of the tuner is ground post connection, which has to be used for the other side of the ladder line.  It is just didn't like the layout and decided I didn't want spend the time trying make it work. So back to AES it went. By the way, that was a $150.00 lesson. (15% restocking fee). The first time I have ever returned a piece of ham gear in 45 years. Anyway, on to the subject of this thread...

An Internet search for "automatic antenna tuners" turned up Maxx-Com.  After carefully reading all the material on the website and a phone call and conversation with Mr. Sonny Irons, I decided to give it a try.  Mr. Irons directly responded to all my questions, and even provided me with more information than I asked for. Also, try it for ten days, and if you don't like it or it does not perform as advertised, send it back. No 15% lessons here.

The unit I have is quite small. about 4 X 4 X 2 inches with a metal backing plate for mounting and weighs about two and half pounds. There is an insulated post off each side of the unit, with the standard UHF connector on the bottom.  No other connections  required.  The physical size of the unit is such that I was able to hang it from the feed point on the dipole. The first test showed that it received at least as well or better than the old dipole and manual tuner. I have a P-3000 RF Applications power/VSWR meter in line.  VSWR was less than 1.5:1 on all bands. In fact, the highest VSWR is 1.4:1 on ten meters.  Band switching for all practical perposses is instantanious.

First contacts running barefoot a 100 watts (SSB) turned up Q5 reports, some running S9+ on 75 thru 17 meters. On 160 and the short antenna it works as well as the old lash up. Come spring I will rectify that situation with some more wire.

I operate mainly with groups on 75 and 40 meters, and the more NVIS radiation the better. Running barefoot, I get 10-20 db reports from the gang on 75, depending on propagation. With the SGC SG-500 amplifier in line its 30-40 db over S9. That...by any standard, is pretty respectable for a "50 ohm resistor in a plastic box". Any time you run across K4OG on 75 running this QRP station...stop by and say hello and check it out for yourself.

The end to this saga is this.  All multi-band operation off a single antenna is a compromise. Mr. Irons will tell you up front, at 7 Mhz and lower, the unit is about 80% efficient. If you keep the wire off resonance (longer physically than the band your working), the efficiency improves.  But assume 80%. With 100 Watts into the coupler you get 80 watts to the wire. That is about 1 db. If your looking for ease of operation and frequency agility, it is an easy decision to make.  The only controls I am concerned with now, from either operating position is the VFO and the PTT switch. Matching the antenna to the solid state amplifier in no longer even a concern. This thing just works. GC



 


Title: Maxx-com tuner -- is it scam or what?
Post by: EB74MX on December 10, 2002, 09:09:33 PM
Hi. It is extremely difficult to respond to people who have simply closed their minds to a "better way." Our customers know that they have a superior product - the proof being in the performance - but... if you haven't tried it, and don't care to entertain the possibility that it works, what can we possibly say to change your mind? Well, our good customers, God bless them, do that for us. Come on, open your minds. It's just a great automatic antenna tuner. Is that so tough to believe? I think not. Best regards. Eric - Maxx-Com.


Title: Maxx-com tuner -- is it scam or what?
Post by: W8JI on September 26, 2003, 09:50:49 PM
Looks like a PT Barnum antenna tuner to me.

The red flags are:

1.) Solid State but powered only by RF

2.) Solid State with no moving parts and always tuned.

3.) The wide frequency coverage

There is no doubt at all this device contains a resistance of some form for dissipating power, and that there is no way it is "80%" efficient and still matches even modest load impedance errors. It takes a "real" automatic antenna tuner with inductors, capacitors, and relays or switches that runs of a power supply to do that.

It is priomarily just a resistor in a box? You bet it is. Just like QST found.
 
73 Tom


Title: Maxx-com tuner -- is it scam or what?
Post by: EB74MX on September 26, 2003, 11:17:19 PM
Hi Tom.

PT Barnum, huh?  Did you know that in that 1890’s an American senator placed a bill before Congress that would have disbanded the office of patents on the theory that everything that could be invented, had been invented, and that there was no further need for a patent office? Tom, maybe this was a relative of yours.

The USS Independence has purchased several Maxx-Com tuners. Were you aware of that, Tom? Tinker Air Force Base in Oklahoma recently purchased a 2000D tuner and it appears to be working fine. We have the documentation, receipts and photos, to back this up. Were you aware of that, Tom?

Our documented clients include Lockheed, Motorola, Westinghouse, Southern Bell, Texaco Oil, Exxon, the U.S. Coast Guard, U.S. Customs, the National Broadcasting Company, and all other branches of the U.S. military. I guess we fooled them all, huh Tom? Even when the U.S. Independence flew a jet in to Fort Lauderdale Executive Airport to pick up two new tuners. I guess they do that on a whim, right Tom? Even though they were a repeat customer? We have the pictures, the receipts. What about that, Tom? They seemed to approve of our tuners. I guess they were just being silly.

Since 1983 we have over 16,000 satisfied clients. Now, we are never too good to learn and improve, however, we will never learn anything from small-minded people like you. It’s a shame you have to poison what could be a nice discussion of specifics by your shallow and close-minded views.

Our normal policy is to ignore statements such as yours, however, yours was so ignorant and abrasive that we could not help but respond. I’m sure you understand. Right Tom?

Continue living in the past, Tom. It’s where you belong.

Eric Bentschneider

Maxx-Com Antenna Tuners.          www.maxx-com.com


Title: Maxx-com tuner -- is it scam or what?
Post by: W3UA on September 27, 2003, 12:23:43 AM
OK, now I understand what it is. It is no need to be a rocket scientist to model this thing. I only wonder how it can dissipate enough power (from 30 percent for antennas with impedance close to 50 Ohm to 100 percent for deeply mismatched ones) in such a small box, without catching fire. No big deal for 200W models (since for normal CW/SSB operation the average power is about 10 percent of the peak power, even in the worse case of the total mismatch it will dissipate about 20 W on average), but for the legal limit it can be dangerous. The only hope is that people who run high power would hardly use this "mystery box".


Title: Maxx-com tuner -- is it scam or what?
Post by: W8JI on October 03, 2003, 02:21:31 PM
OK, now I understand what it is. It is no need to be a rocket scientist to model this thing. I only wonder how it can dissipate enough power (from 30 percent for antennas with impedance close to 50 Ohm to 100 percent for deeply mismatched ones) in such a small box, without catching fire. No big deal for 200W models (since for normal CW/SSB operation the average power is about 10 percent of the peak power, even in the worse case of the total mismatch it will dissipate about 20 W on average), but for the legal limit it can be dangerous. The only hope is that people who run high power would hardly use this "mystery box".>>>>

Yes, there certainly isn't anything unique or novel about adding loss to an antenna to obtain bandwidth.

There isn't anything unique or illegal about calling a resistor a "solid state tuning device". Solid state implies semiconductors, and that's what resistors could be loosely called.

There also isn't anything out of the ordinary in defending a product based on the fact some people are willing to buy it.

The power loss depends on the SWR that can be tolerated. Loss is governed by the voltage across the resistor and the value of the resistor. With a 2:1 maximum SWR, power loss would have to be a minimum of about 30% or so in a best-case situation. Of course maximum loss could be nearly 100%.

Myself, I'd just buy a resistor and install it across the feedpoint myself. If I had poor morals and didn't care about others I might even take to selling my resistors and misleading people as to what they were, perhaps by including a transformer that had no real necessary function or old pieces of circuit board that were chopped up and glued in place with epoxy.

73 Tom


Title: Maxx-com tuner -- is it scam or what?
Post by: EB74MX on October 03, 2003, 02:51:49 PM
Dear Tom,

Just when we about to give you the benefit of the doubt, you come back with that obnoxious bit of name calling. Have you not read the review by the Navy veteran that resides just above yours? He says “This thing just works.” He also refers to people like you as “non-qualified pukes.”  A navy vet. Hmmm….

And you’ve never even used a Maxx-Com. You spread your ignorance like a computer virus, because it’s easier for someone like you to tear something down than it is to try to understand it.

We successfully manufacture 5,000 and 10,000 watt tuners without cooling devices. The 10 KW Maxx-Com tuners used by Harris Broadcast Division for Broadcast Jamming Operations overseas is another example. That’s 10 KW of AM continuous. The same circuits as are in the 200 watt models. And you’re so wrong about the circuitry. You had our staff both laughing and shaking there heads in exasperation.

Also, if you had read the July 1985 issue of QST you would have read the retraction to their earlier “expose.” The mystery was cleared up about the “Dummy Load” box. There isn’t one.

I guess it’s true what WORLDRADIO editors said: “The only people talking bad about Maxx-Com are the people who have never used one, why all who try it, love it.” And that includes WORLDRADIO after using a 200D during field day operations.

Have you checked the testimonials, reviews, and our customers on our web site? www.maxx-com.com? Have you?

What if we were able to make a tuner that had absolutely no components in the box? Although deserving of a medal, would you complain? Of course you would, because your mind is closed and you just prefer to be critical. I would not be a bit surprised to learn that you thought the earth was flat.  

Tom, in the future we will not be responding to your unwarranted and uninformed attacks. You will not bait us into further replies. We have no time for your foolishness and immaturity. You speak of morals. Ours are intact, I assure you. So you go ahead and throw that first stone. In fact, go ahead and throw them all. You clearly enjoy that best.

Eric  /  Maxx-Com Antenna Tuners  /  WWW.MAXX-COM.COM


Title: Maxx-com tuner -- is it scam or what?
Post by: W8JI on October 08, 2003, 09:50:22 AM
Eric,

I really don't want to go into morals and honesty, or worry about the way our Government squanders tax dollars on $5000 toilet seats. And I'm not interested in what your "navy strawman" says.

Actually I admire people who can stomach charging high dollar for low tech, and walk the edge of truth. Someone deserves to get some of our tax dollars back.

I wish I could do that, instead of just paying.

73 Tom


Title: Maxx-com tuner -- is it scam or what?
Post by: N0XE on October 09, 2003, 10:32:02 AM
I bet the AM boys back in the early days said that SSB will never work, come on fellows, a lot of  this stuff is theory, and we learn new things in the world of electronics every day, (Keep your minds open) I can tell you that from my experience that the tuners do work and if you put them up as instructed they work very well.  The B&W wide band dipoles get a similiar slamming from a lot of so called antenna experts. A lot of them are called dummy loads as well. They  work pretty well and I have owned several of those. We tend to think that there are only a few really good antenna designs, but the handbook is filled with many types that hams never even explore. Lets face it it when it comes to wire antennas all you  mostly hear is  G5RV, Dipole and Zeps, Tuners are another aspect and opinions range all over the place on what types are the best. Some say no tuner is best, and that we have got too focused on that and should stay with matched antennas only. Who Knows?? I say if a manufactor will stnd behind his product and give you your money back if not happy, then I would doubt very seriously that any kind of scam is in place.  Give these guys a break,  World Radio used the tuner during a Field Day and I have the copy of it around here in the shack some where and from their review the tuner did just fine, They made a lot of contacts on all bands with ease. I would doubt that any true dummy load would do that. My experience was with a ham  I was visiting in Alaska and he  had one up in a tree and worked all over the place with it, Try the darn thing and then voice your opinion, it would be much better for all.
73 N0XE


Title: Maxx-com tuner -- is it scam or what?
Post by: W8JI on October 09, 2003, 02:22:27 PM
N0XE,

The biggest problem with any of this is sales or marketing people aren't quite straight with consumers. It is NOT that someone just absolutely won't make contacts with a very poor systems, but that they are misled into not quite understanding what they are getting.

Maxxcom states it is a solid state tuner, and implies something solid state is "tuning" or "switching" when it is really just an impedance swamping device (a resistor). BW implies their antenna has high or reasonable efficiency, when it does not. The same thing occurs with a Sommer Vertical that uses a dummy load to reduce SWR.

With all of these antennas, you will find frequencies where efficiency is extremely low. Efficiencies of a few percent are common. On other "sweet spots", they are not so bad. They can have 50% or higher efficiency.

As most people know, even less than 2% efficiency antennas will make contacts. I've worked Europe and Australia on 160 meters from my mobile, with about 1/2% efficiency. Of course other people using similar power would be 20dB louder than I was with a decent antenna, but I still made the contact.

The problem I have with any of this isn't selling people resistor loaded antennas. The problem is not letting consumers make decisions based on accurate upfront information,or misleading them into thinking something is going on that really isn't going on.

Of course people can make contacts even with 20dB of attenuation caused by losses that are intentionally added to systems. Some people may be happy as a Lark despite that, because the SWR meter reads low. They might not notice the S meter reads low also because they have nothing to compare it to.

But somewhere there is a blur between being upfront about HOW WELL and HOW the system works, and intentionally misleading people.

I'm not going to pretend to know where that line is. Many people are happy with resort vacations they paid too much for, and the salesmen through careful word games mostly avoid jail. That doesn't mean I don't have a right to describe what they are really buying, and compare it to better options.

73 Tom


Title: Maxx-com tuner -- is it scam or what?
Post by: EB74MX on October 09, 2003, 02:46:34 PM
From Maxx-Com.

A long time ago we were faced with a decision. Patent the technology and risk having someone make a minor change and copy our design, or put up with people like Tom who are clearly driven crazy by the fact that this thing works so well. We are not a large company and even if our patent were grossly violated we could not afford the legal fees that larger and more powerful companies could easily absorb.

There is more going on inside these tuners than people realize. That is why they work so well and that is why they have not been copied. The device Tom describes in his moral outrage at our marketing is not the same device that we are producing. The device Tom describes would not pass muster with all of the high-end users – or the ordinary folks like you and me. It just wouldn’t work.

Maxx-Com is a unique and effective piece of equipment, ingeniously designed by an extremely bright and ethical man who I have the honor to call my friend. It’s economical, almost indestructible, and it works. What more can we say?

Eric / Maxx-Com         www.maxx-com.com



Title: Maxx-com tuner -- is it scam or what?
Post by: W8JI on October 10, 2003, 06:28:25 AM
1.) We could patent this, but then someone would copy it. So we have to keep it secret how we switch and tune networks without using devices that switch or tune.

2.) The Military and Government has used this, so it must be good. They never waste money.

3.) Nothing else works.

4.) Anyone who says any of the above sounds fishy is jealous of us.

Got it!!!! Good points Eric. Wonder how I missed them.

73 Tom  


Title: Maxx-com tuner -- is it scam or what?
Post by: EB74MX on October 10, 2003, 08:53:55 AM
Reply from Maxx-Com.

Maxx-Com makes great tuners. They are economical, tough, and they work. Some very intelligent and well-written people right here in this forum have said so. Tom, on the other hand, has never used one, but has appointed himself judge, jury, and executioner. In this great country even the uniformed have a right to a public forum, but for those of you with open minds we only ask for you to review the available information and make your own choice.

Best regards,

John /  Maxx-Com  /  www.maxx-com.com


Title: Maxx-com tuner -- is it scam or what?
Post by: K0RFD on October 12, 2003, 11:43:11 AM
If you're an ARRL member you can read the 1984 QST review, complete with X-Rays, in the members-only section of the ARRL web site at:

http://www.arrl.org/members-only/prodrev/pdf/pr8411.pdf

The reader can draw his or her own conclusions about the product.

I thought that the WorldRadio review linked off the Maxx-com site was kind of interesting.  They said they could work anybody they could hear.  Of course, with a dummy load across your receiver, you're not gonna hear much either...


Title: Maxx-com tuner -- is it scam or what?
Post by: DROLLTROLL on October 22, 2003, 03:37:48 PM
Eric, the word is uniNformed not "uniformed". Just add another n and you've got it.

P.S. For those inquiring minds that "just have to know", a small flat blade screwdriver, exacto knife and hot air gun will soften and remove most epoxies and potting compounds without damaging the electronics encased within. I do it all the time on surface mount boards cast in potting compounds. Never damaged or lost a single component.


Title: Maxx-com tuner -- is it scam or what?
Post by: ZL1WDC on December 02, 2003, 11:30:38 PM
Well,ITS NO SCAM! They work beyond a reasonable doubt. People can look down right silly when they say things about something they have no idea about or proof of. The Tuner..the one i bought is very real. Because it is as good as it sounds and the fact that i am an ex-radio eng i posted a review on this in the reviews section of this site which explains my initial findings on the subject.
QST...theres more to their findings than meets the eye, there has to be from what i have seen and know...i wouldnt believe everything you read. They might just have a bee in their bonnet about it. How can someone claim that its smoke and mirrors when it works like they say. Maybe i passed all my exams on radio theory because i am thick...or maybe i am right.
Anyway...who cares what those who dont have one think, i am one of very few hams in the world that dont have to use a manual/auto tuner ever...because i simply dont need it.. :) My pride is not bigger than my curiosity and that is why.






Title: Maxx-com tuner -- is it scam or what?
Post by: VE6RTR on December 06, 2003, 04:52:57 PM
I read the review in QST that the Max Com tuner consisted of a toroid coil, various resistors and a scrap circuit board with no electical connection to any other component all surrounded by a lot of epoxy. On the other hand,I could not find the retraction that EB74MX has stated was printed in the July 85 issue of QST. Hmmmm.


Title: Maxx-com tuner -- is it scam or what?
Post by: W2MC on December 06, 2003, 05:46:28 PM
I love this thread!

I'm not sure which I like better.....the P.T. Barnum portion---"A sucker is born every minute", or the Joseph Goebbels/Adolph Hitler---"Big lie" methodology.

Perhaps its the blend that makes this so special.


(BTW, when I see a review by a QUALIFIED PROFESSIONAL perhaps I'll believe the claims...but I'm not holding my breath.)

Jon
W2MC


Title: Maxx-com tuner -- is it scam or what?
Post by: ZL1WDC on December 06, 2003, 10:22:13 PM
Obviously some people dont read well. I am a qualified radio tech by trade, anyone is welcome to email me directly if you dispute it. I will even give you my phone numbers and address if you so wish to contact me regarding the unit i tested. I helped build the 1990 commonwealth games radio network aswell as the marine rescue centre here in Auckland New Zealand amongst many things during my time. I worked for Telecom NZ for many years and maintained ALL VHF/UHF repeater systems and bearers (trunking included) in the upper north island of NZ. I also maintained the National paging network and was involved in the first mobile data development for commercial use in NZ. While i do not work in this area anymore, it should be un-necessary for me to qualify my ability. Ham radio is not only about comradery and sharing but also integrity. Honesty is part of being a Ham and i trust Hams the world over, I have done for many years despite people in the commercial industry giving Hams a hard time over their hobby. It is un-necessary to have an opinion of a radio expert, all that is required is that of a Ham operator, they are qualified even if not in building gear, they know how to use it. I am not willing to pull apart this unit to view its insides. It works and i can technically guess why, but its just "hear say". All i can offer is my opinion on what this unit DOES in simple setup terminology that most people may indentify with.
The fact remains, it does what they say it does. I use it, it works. My advice is dont criticise without foundation, you will be remembered for a long time.
A person once said to me; "Whats the harm in beleiving in god, if i am wrong, the worst thing that happens is i die and thats that. If your wrong and dont believe he exists what will happen to you?" My point is not about god, its about the harm in beleiving what people say. Its not foolish to beleive in something, its only foolish to criticize it without foundation.
Buy one and simply try it instead of talking about what you think you know. They offer money back if not happy. Ring them, i have! They are linked to a well known company in Florida. There really is no need for such stirring and congecture when this is available to you. It really dissapoints me at times to read Hams disagreeing over things when the simply answer is to trust each other and share the information. In the wise words of Thumper " If you cant saying anything nice, dont say anything at all."


Title: Maxx-com tuner -- is it scam or what?
Post by: WR8Y on December 09, 2003, 04:55:08 PM
W8JI,

How could anyone doubt a product that is promoted using soft-core porn?

I think the idea here is to distrac you with your own hormones.  {rolling eyes}


Mark
WR8Y





Title: Maxx-com tuner -- is it scam or what?
Post by: N3ZKP on December 09, 2003, 08:48:01 PM
<< In the wise words of Thumper " If you cant saying anything nice, dont say anything at all."  >>

Pure BS!

One of the purposes in this forum is to poke holes in bogus products and this fits at the top of the list.

Just because some government agency bought something is not an endorsement. Samples of products are purchased all the time. If the military thought these were hot stuff, you'd see them all over the place instead of real high power antenna couplers that are the size of suitcases.

I don't guess you have been around too many US military communications facilities.



Title: Maxx-com tuner -- is it scam or what?
Post by: ZL1WDC on December 09, 2003, 10:26:19 PM
Oh.. so the old "my daddy is better routine comes out", how mature. The fact remains that i put information in this forum for people to use for their benefit. If they dont use it, thats cool. But its funny how the last 4 QSO's i have had using the matcher are better than any other aerial combo i have...but then what would i know being a Radio Eng, i have never been in the US Military. It all makes sense now..I should join up so people take me seriously. While i am at it i can go steel some oil too!


Title: Maxx-com tuner -- is it scam or what?
Post by: N3ZKP on December 10, 2003, 02:41:14 PM
Of course it works ...

So does a 100w light bulb and a dummy load.

There is no mention of the impedence matching range for this thing, so the only logical conclusion is what others have said - it's a 50 ohm resistor across the SO-239.

The world (especially the ham world) is full of suckers!



Title: Maxx-com tuner -- is it scam or what?
Post by: ZL1WDC on December 10, 2003, 05:21:12 PM
You dont make a QSO over 3,000km @ 5/9 with a light bulb. Sounds like one bitter sheep following a group into a pen. The only dummy nearby seems to be the one stuck in its rear.


Title: Maxx-com tuner -- is it scam or what?
Post by: W4VR on December 11, 2003, 05:52:32 PM
Even the call letters EB74MX is a joke.


Title: Maxx-com tuner -- is it scam or what?
Post by: EB74MX on December 12, 2003, 08:24:23 AM
This is Eric Bentschneider of Maxx-Com. It is true that call sign EB74MX does not exist, but I needed it to register for the forum. I am not a ham, but just a normal guy who works for a company with a great product, happy customers, and a reference list that would make most companies proud. This will, however, be my last entry. The level of anger and ignorance in this forum is depressing to a degree that is almost morbid. For you Maxx-Com defenders, thank you: You can't know how much we appreciate your faithful and continued support. For those of you who have a problem with our product - although you have never tried one, and haven't a clue about what you are talking about - I strongly and respectfully suggest you all go get a life. Take out a girl, go to a movie, watch a ballgame. Life is short, and writing angry, poison emails can't be a healthy thing to spend your hours on. Perhaps it is time to find a new cause: Homelessness, bigotry, violence against women and children. Something.... anything. Either way, take care all. And best regards. Eric.


Title: Maxx-com tuner -- is it scam or what?
Post by: WR8Y on December 12, 2003, 10:49:19 AM
"This is Eric Bentschneider of Maxx-Com...This will, however, be my last entry. "

Good, we win!  Too bad you couldn't explain HOW your product works - it's all we asked for!  

"The level of anger and ignorance in this forum is depressing to a degree that is almost morbid."

Baloney.   Those of us who know at least a little about RF are simply trying to help people avoid being ripped off.  

"and haven't a clue about what you are talking about - I strongly and respectfully suggest..."

THere is nothing respectfull about: 1)charging hundereds of dollars for a toridial transformer, a few windings on same, several resistors and an enclosure. 2)Trying to convince those who don't know, that this product is an 'antenna matcher'.

"...you all go get a life. Homelessness, bigotry, violence against women and children..."

Nice try at diversion.  Again, how about explaining to those of us (including those in the ARRL Lab)who can see through this crap, just HOW this product works?

Well?

Anyone still unconvinced can simply go to the ARRL product review and see for yourself.  

Mark
WR8Y



 


Title: Maxx-com tuner -- is it scam or what?
Post by: ZL1WDC on December 12, 2003, 04:17:51 PM
It doesnt matter what Eric says, you will try to shoot it down. It is simply a pointless task for him to get you to buy one (money back i might add)and try it. It is amazing how out of all the skeptics in this forum (there is a better word for them), not one of you has gone out and bought one, tried it and said anything to the rest of us! It must really piss some Hams off because they cant find out more information. If the schematic was out there and you all used it, you would be saying "oh how amazing that Sonny Irons invention is and how nice Eric is because they shared it with the world", yeah and went broke!
Personally i find most of you amusing to say the least because you sound like the kids i went to school with. You havent won, i am still here and so is my review in which i explain HOW IT WORKS enough for you to know that a person bought one and it goes well.

"THere is nothing respectfull about: 1)charging hundereds of dollars for a toridial transformer, a few windings on same, several resistors and an enclosure. 2)Trying to convince those who don't know, that this product is an 'antenna matcher'."

The next thing you will be saying is that Maxx-com pay me to say nice things about a matcher that works.
What a tosser! Your mum should wipe your butt, cause there's alot of shit coming out of it! All your doing is what alot of people do, dump on things without foundation...you havent even used one, you have no right to advise anyone of anything. You never stopped me buying one because your attitude showed you knew nothing. Most people in this world dont know how alot of things work but they buy them and use them everyday...oh no but not hams, they NEED to know.
I deal with people like this everyday and you are the exact same ones that sit back and complain when some does well in something. The same people that complain when a wealthy person drives past in a nice vehicle.
Go spend hours using your manual tuners and trapped antenna's, go advise people on those and leave the real toys to us.To those with interest, i still offer my findings and my email address and phone number is open to those wanting to talk about it.

I will say it again, mine works...i win!


Title: Maxx-com tuner -- is it scam or what?
Post by: WR8Y on December 12, 2003, 05:15:06 PM
We have a language problem.  I didn't ask for an on-air test.  

I asked for an explanation of the theory behind it's design.   This is someting NOONE can give, because it's a scam.

The product consists of a torid core, a few windings on same, and some resistors.   (In some models, a dummy board of parts, not even connected to the above parts, is found.)  Explain how this device works.



Title: Maxx-com tuner -- is it scam or what?
Post by: EB74MX on December 15, 2003, 10:07:45 PM
Hi Tom. (You know who you are - the only person writing this bad stuff in eham.)

This is not to pick a fight. I am past that.

But, do you ask for the wiring diagram for all of your home appliances? The computer that runs your car? The satellite that feeds your digital TV? Why the negative anger about our product? I have seen them built. It's impressive. You would be amazed. I was. I know the owner/inventor. He is an honest and bright man. And you don't know me, but I wouldn't support a crappy product. I return money to 7-11 clerks who give me too much change. We are good guys. All of us.

Tom, I apologize for any less than complimentary things I have said about you in this forum. That goes against my basic beliefs and it was wrong. You have every right to your opinions and god bless you. Still, read the reviews and testimonials on our web site, and the very positive letters right here on eham. In the end what does any of it matter except that these damn things work?

Three years ago we had a tuner returned, however, the buyer flatly refused our installation advice. He knew better, so we couldn't help him. It's odd, is it not, with this raging debate, that there has not been one letter saying that these things just don't work? On the other hand, a Navy Vet and radio engineer both said that they work great. Does it not bother you to be insulting them? Why do that? Is it that important to you to tear this product down? I just don't understand. I think there is a good chance I never will. They work, Tom. And that's the botom line.  

Oh well. The best to you, Tom. The very best. Merry Christmas and a happy and properous New Year to you.

Eric



Title: Maxx-com tuner -- is it scam or what?
Post by: N3ZKP on December 20, 2003, 11:37:45 AM
Eric:

<< For you Maxx-Com defenders, thank you: You can't know how much we appreciate your faithful and continued support>>

If it were a legitimate product and not snake oil, you would not need defending. The whole world would be beating a path to your door. I'll trust the QST review team, before I'll trust your non-proven advertising hype.

As for the military purchases, they'll try anything once. If your stuff worked they'd be buying them by the thousands.

Lon


Title: Maxx-com tuner -- is it scam or what?
Post by: EB74MX on January 06, 2004, 09:18:57 PM
Lon, Hello.

We ARE selling them by the thousands. Over 15,000 since our company's inception. Just last week we sold ANOTHER two to Tinker Air Force Base. Odd, they purchased two before that, and have told us they will buy two per quarter (that's every three months) for the rest of 2004. They say that they have had great results and that they are very happy, but according to you these Air Force guys are just dopes. Hmmmm.....

Defending our product? Of course, Lon, wouldn’t you? And I’ll tell you a little secret. Answering letters such as yours just amuses the crap out of us. And recently a friend reminded us that in the 60’s there were folks claiming computers to a big fraud. I mean, nobody knew how they worked. Actually, I still don’t. I mean, what are these messages we all get that say “You have performed an illegal operation?” I didn’t do anything illegal. Still, these damn computers actually do work, allowing us to see the world, communicate with loved ones, and explore subjects previously unknown to us all.

Of course, I know you will say that this letter is just a smokescreen, as our tuners don’t work. Right? Oh yea, sorry, they work great. Hmm…. What’s a fellow to do? Try one? Naw….. That’s ridiculous. :)

A Happy and Prosperous New Year to you anyway.

Eric / Maxx-Com Antenna Tuners


Title: Maxx-com tuner -- is it scam or what?
Post by: K8NDS on January 28, 2004, 04:53:16 PM
Eric I have proposal for you. I have had many years of antenna experience, both amateur and proffessional. I hold a few antenna patents, so I do understand antenna systems to a degree. I have some strong suspicions about your product, but as you stated don't knock it until you have tried it. If your product is genuine you would have nothing to loose by having a proffessional opinion stated here. I propose that you give me one of these items on consignment, if it truly does all that you state and lives up to the efficiency factors, I will be glad to state the true facts, If it doesn't I will also state the truth. If your company and products are on the up and up, you will have allot to gain. I just wonder why you don't have a better marketing scheme if this product is what you claim it to be.If I had a product that worked as stated, I would be a multi million air by now? Do you have a patent on such a remakable invention?


Title: Maxx-com tuner -- is it scam or what?
Post by: WA4HND on February 03, 2004, 04:41:09 AM
To anyone that is interested.

I just picked up a maxx-com this week ( my couriosity got the best of me and I figured if it didn't work, I'd get my monies worth out of the bad press I would send Maxx-com's way.

If anyone is interested in what I foundl  Let me know and I'll post the details here.

One clue ...  after my first day of doing some tests ( on and off the air )... there is no doubt in my mind that the unit is NOT going to be sent back for a refund.

Al


Title: Maxx-com tuner -- is it scam or what?
Post by: AD5X on February 05, 2004, 02:57:20 PM
Can you put a power meter between the Maxx-com tuner and your antenna?  It would be interesting to see what the power loss is through the tuner.  Check it on all the bands you operate on.  

Phil - AD5X


Title: Maxx-com tuner -- is it scam or what?
Post by: N6KEK on June 09, 2004, 02:52:35 PM
How come the big DX contetsters stations haven't chimed in on this one. I bet they all have one and they win all of their awards with this "heater".

Haven't one DX contester endorse yet.

Sorry but it's 1984 all over again except when you X-Ray it you don't see the scrap circuit board ( the active device "solid state" in it that makes it work:)

Bob


Title: Maxx-com tuner -- is it scam or what?
Post by: W8JI on June 20, 2004, 08:10:59 AM
Sheesh, this is just common sense you guys.

It is just basically a resistor in parallel with the feedpoint.

If some moron, even the US government, is happy buying an expensive resistor to fool someone into thinking an antenna is working efficiently then let 'em spend their/our money.

The only disenchanting thing about this to me is the advertisements imply this is an active tuner, and that is pure bullcrap. An active tuner has a power source, takes time to tune, is somewhat large, and has components inside that switch or adjust.
 
Take the misleading information away that implies this device is an efficient tuner, and there is nothing wrong with selling a resistor load to put across the antenna. After all, B&W sells a resistor loaded folded dipole and has for many years. This is EXACTLY the same operating theory.

By the way, QST looked at one of these "products" years ago with X-rays and found a disconnected scrap PC board inside so you could see the IC chips (and think they were doing something), a large power resistor, and a toroid.

Pretty much anyone who has any electronics and antenna experience understands what this device really is.

73 Tom


Title: Maxx-com tuner -- is it scam or what?
Post by: DD3LY on January 13, 2005, 07:29:58 AM
I have been working (QRL) with terminated broadband antennas for several years and hopefully will do this further on.
The terminated rhombic, the terminated vertical half rhombic (like offered by B&W), the T2FD, the Beverage, the terminated vertical folded monopole are a kind of metamorphosis which ends up what Maxx.Com offers. I homebrewed this circuit three times up to now. All did what I awaited they would do. If you are able to build one 50:200 Ohm BalUn as a transmission line transformer and you terminate this with a rf-resistor of some 250 Ohm, you did it.
You may experiment switching between two different transformer/resistor-combinations: one 50:200/250 for the high frequency range (>7MHz) and one 50:450/500 for the lower bands (<7MHz). This would raise the efficiency a bit for the lower bands but would raise the effort for tuning (switching) again, which might be done via the coaxial cable.
You may experiment further on if you split the antenna into a folded dipole and place the transformer and the resistor at opposite wires. Then you have the T2FD again...

I would not recommend this for QRP but if you want a dumb drop-in-and-forget-unit and the power loss may be acceptable (if you have 100W or work QRO) you do not need to worry about mismatch. This may be the real reason why certain mil users took this way. They may have enough power and possibly have other problems to care for.


Title: Maxx-com tuner -- is it scam or what?
Post by: DD3LY on January 26, 2005, 12:48:31 AM
I suppose that the antenna you find at http://www.sommerantennas.com/t25s.html
exactly is the maxx.com but not a balanced version (with a balun) for a dipole, rather an unbalanced version (with an unun). A maxx.com matching-device plus a cheap CB-halfwave antenna and some counterpoise will do this job. Mr. Sommer mentions realistic values of gain you have to estimate with such a structure (I did NOT check these!).


Title: Maxx-com tuner -- is it scam or what?
Post by: N5WRX on May 30, 2006, 01:02:30 PM
I had a Sonny Irons Auto Antenna tuner back in the 80's.
It worked OK but not as well as a 1/4 wave dipole.
It did make a quiet antenna compared to others.

The new Comet CHA250B is basicly the same deal.
A 50 ohm shunt with the antenna attached to one end and ground to the other.
If Comet thinnks it is worth $450 then there must be something good about it.

William Lee


Title: Maxx-com tuner -- is it scam or what?
Post by: PA1WAN on July 13, 2007, 04:36:29 AM
Reading the postings here about the Maxx-com tuner it seems that everyone has an opinion about it but no one has actually bought one to find out what it does, i did! Let me explain, i live in Europe (Netherlands) so excuse me for any weird language and misspelled words. I restored a 40yr old army radio truck (Mercedes-Unimog S404) that i use purely for my hobby. Among others there is a GRC-106 transceiver aboard (400W PEP) that i use for RTTY. I started out with putting up dipole antenna's in the field on three 11mtr high masts but i soon found out it just was to much work, if the field trip was just one day i would not get to my radio's at all! Just setting up and breaking down antenna's. In my shack i had a SG230 autotuner that worked very well in the radio-truck also. I just had to erect 1 mast (instead of 3) and run a 100ft single wire from the vehicle to the mast. If i needed to be really quick i could use one of the 3 whips that are always in place on the shelter. The only problem with the SG230 is that it is only 80 Watts on RTTY (200PEP) and the GRC106 will easily put out 200W. So i went looking for another solution. It had to be an autotuner, lots of other stuff to do in the shelter and i need both hands to tune the amplifier of the GRC106. I looked at the bigger SG autotuners but i found them a bit pricy... Also looked at surplus tuners like the Harris RF-601A but they are hard to find and sometimes very expensive. Then i stumbled on the Maxx-com tuner, at first it looked to good to be true (and then ususally it is), but if it worked it would be the perfect solution. The Maxx-com is obviously not a "tuner" in the normal sense. It needs the radiators to be non-resonant so it is most likely an impedance transformer plus a means to flatten the SWR at the transceiver side. A Coupler would be a better description. Clearly this setup can work, ICOM sells one too and i am sure if you look hard you will find more examples, so there is no need to discuss the principle, it will work, also there is no physical law that claims radiators have to be resonant to be an efficient radiator (look at this excellent piece: http://www.vk1od.net/iobr/)
What i liked about the Maxx-com is that somehow they found a way to let it handle 1Kw PEP wich is a lot more than the ICOM model. I decided to order one and see for myself. Maxx-com claims the tuner to be 80% efficient, i figured that if it can do that, it would be OK by me, 100% power in, 80% radiated power out and no tuning hussle: GREAT!

At my QTH i have a 200ft dipole with a Diamond BU-50 balun and 100ft of Aircell-7 cable to a manual tuner. This is a common setup for hams like me that have trouble routing a balanced feedline into the shack. Before installing the Maxx-com i took FS measurements at carefully defined places (FS can vary hugely in the antenna's near-field at different places) and at several frequencies including the F.res of the dipole. After hoisting the Maxx-com up into the middle mast i retook the measurements at the exact same frequency and places. The results were stunning: at the F.res + 250kHz (Maxx-com instructions ask you to avoid resonance so i added 250kHz) the FS was just a tiny bit lower, my best estimation would be between 5 and 10% down on the old situation. On all other frequencies however the FS with the Maxx-com in place was way up! This can easily be explained, with the tuner at the transceiver i had a widely varying SWR on the feedline that causes great losses in the feedline. The Maxx-com is always under 1:1,5 so feedline losses are down to a minium. After that came the real test, i started working stations in CW in the middle of the day on 40m and got fine results from Poland, Italy, France etc. In the evening i reduced power to 20W and had no trouble working the other stations in the Dutch Amuture net on 80m.

Some time ago i also aquired a new surplus transmitter, a Telefunken S2525/3 (weight: 260kg!) with an output of 1KW. Way more than my tuner could handle so i ordered the new MFJ998 autotuner that will be available to Europe somewhere in the end of 2007. But, after only one week working with the Maxx-com i totally dreaded the idea of going back to the tuner hussle, The MFJ, beeing an "autotuner" will still need a few watts to tune wich means that i must reduce power at the Telefunken, tune, switch to high power, etc. Noting wrong with that and i am sure the MFJ is a fine tuner but by that time i was already used to working with the MAxx-com: just dial a frequency and hit the key! End of story: I cancelled the order and got myself a second Maxx-com for the shack.

Now there will always be postings of people that have never even seen a Maxx-com for real calling it a "resistor in a box", i cannot help that, but saying the Maxx-com is a dummy is like calling me a dummy, you wouldn't want that would you!

Regards,
Willem PA1WAN


Title: Maxx-com tuner -- is it scam or what?
Post by: K4KYV on July 31, 2009, 07:44:46 AM
The original MaxCom was developed by a company in Florida, run by a dude named Sonny Irons. Check out some of the 1980's era ads in 73 and CQ magazine.  The photos of Irons in the ads will speak for themselves.

It seems that Irons had a run-in with the law back in the mid 90's.  The following stories tell enough about Sonny to make it easy to understand why he feels compelled to pack heat.

http://www.browardpalmbeach.com/1998-04-23/news/sonny-s-last-stand/1

http://www.waterfront-news.us/98/06/html/speakeasy.htm


Title: Maxx-com tuner -- is it scam or what?
Post by: AA4PB on July 31, 2009, 09:18:03 AM
Basically its a resistor in a box. The resistor disipates some of the power as heat in order to keep the SWR within reason. How much gets converted to heat vs. how much gets radiated depends on the frequency and the exact length of the antenna wires. The higher the feed impedance of the antenna, the more power gets changed to heat.


Title: Maxx-com tuner -- is it scam or what?
Post by: K4KYV on July 31, 2009, 10:20:58 AM
If you think the MaxCom Automatic Antenna Matcher story was a riot, check out "The Seafarer’s Church of the Creator":

http://www.religionnewsblog.com/13286/estate-owner-wants-to-avoid-33000-tax-bill-by-making-home-a-church


Title: Maxx-com tuner -- is it scam or what?
Post by: WR8Y on July 31, 2009, 10:46:09 AM
Boy, this guy IS a creep!


Title: Maxx-com tuner -- is it scam or what?
Post by: WR8Y on July 31, 2009, 10:48:59 AM
"""Basically its a resistor in a box. """

BASICALLY?   You are being too kind - it IS a resister in a box.   It is NOT a 'tuner'.


Title: Maxx-com tuner -- is it scam or what?
Post by: AA4PB on July 31, 2009, 01:00:01 PM
I say "basically" because I have read that later version have added a toroid transformer of some type. That still doesn't make it an "antenna tuner" as advertised.


Title: Maxx-com tuner -- is it scam or what?
Post by: SWL377 on August 03, 2009, 03:28:35 AM
15,000 people who overpaid for a simple passive device that performs no better than a lossy 52 ohm resistor does not prove anything but gullibility. The fact that the govt and military have purchased a few proves nothing other than technical gullibility isn't exclusively a civilian problem.

It "works", exactly as previously described. It is hyped up to appeal to people wanting and expecting antenna miracles. Brilliant marketing, I do admit that much. PT Barnum had something to say about that.

If the mfr wants to sue me for slander I will cheerfully accept a summons. I would welcome a courtroom battle. My address is in qrz.com.

73,
AF6IM
BSEE, skeptic and RF myth buster


Title: Maxx-com tuner -- is it scam or what?
Post by: AC4RD on August 03, 2009, 05:22:50 AM
After seeing this thread, I went to the ARRL website and found the 1984 review--the one that found the device to be essentially a few resistors and a toroid.

I see the guy from Maxx-com claims the ARRL retracted the review.  But that is NOT on the ARRL review website.  If that's true, Maxx-com, how about posting a scan of this supposed 'retraction' so we can read it for ourselves?


Title: Maxx-com tuner -- is it scam or what?
Post by: K8NDS on August 03, 2009, 06:44:23 PM
I have posted info on this gadget back several years ago; it amazes me that there are actually people out there buying this stuff. What amazes me more is that there are unscrupulous companies selling this stuff. This is what the country has come down to, scamming the unsuspecting and uneducated public. I have made contacts with my dummy load in the past, if you attach a piece of wire to a tee connector on your dummy load you will be surprised what you can work if conditions are right. It's all about leakage, most of the power goes into the dummy load presenting enough of a load to the TX so that the TX doesn’t completely shut down and some minute amount of power gets transmitted from the wire. It's a no brainer!
Oh yes, and by adding some sort of transformer it might make it easier to load the leakage wire. Snake Oil in an Antenna can! I presented an offer to Maxx-Com back a few years ago, I asked them to send me one to evaluate and if it had any teeth to it, I would give it my recomendation. By the way, I did antenna design for microwave antennas as part of my career.


Title: Maxx-com tuner -- is it scam or what?
Post by: WA8FOZ on August 03, 2009, 08:21:12 PM
The thread that would not die!

Amazing what you can do with QRP when conditions permit.


Title: Maxx-com tuner -- is it scam or what?
Post by: KI4AUP on September 07, 2009, 06:05:01 PM
If it works then we should be good
Ever wonder why the military is using it?
-It works
-Small chance of breaking down in the field unlike active tuners
-It will work whatever length on the antenna is - if your antenna gets hit by enemy fire you can still operate your radio
-No need for a super efficient antenna just crank the TX power and you're good
-Its broad band. They can inadvertently swap antennas but it will still work.

But somehow their web address www.maxx-com.com doesnt exist anymore. Hmmmmm.

73,

John


Title: Maxx-com tuner -- is it scam or what?
Post by: AA4PB on September 07, 2009, 06:21:41 PM
No problem at all with the technique - there are times when it can be useful. The problem is when you lie about it and tell people it is some type of very fast "automatic tuner" and try to hide the fact that it is a simple resistive load. It's when you try to hide what it really is so that you can trick people into paying big bucks for it that it becomes a scam.