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[Articles Home]  [Add Article]  

A Different Sort of HF and 6 Meter Mobile

(KC9JUM) on February 14, 2008
View comments about this article!

This is not your usual HF and 6 meter radio install. Not at all

This is for my 1992 Taurus.

The radio. A Motorola Syntor X 9000

What is this you say? Well here are the specs for starters:

110 watts rated, 32 channel, Remote mount. Simple A7 Alpha remote head, with Scan, Mode, Sel, Home, RCL, Sql, and Del, A nice original Moto speaker round out the install.

Good old fashioned WIDE and FAT 16K FM here. -- Ahh the joys of lowband. So this means 29 MHz and up only. No problem. I don't enjoy hunting for people and calling CQ. 10 meters FM operation is as easy as 2 meters with nice DX. 6 meters is similar fun too!

The listed Motorola split is 30 MHz to 50 MHz or so. But most people know that this radio covers much more without problem. 29 MHz to 54 MHz is no problem.

The problem with this is that the radio has one PL-259 connector. I thought on this, as I did not really want to use Ham equipment on this install. I wanted to use 100% converted Commercial gear. I had to give in here, but -not- with some gimmicky flimsy ham antenna that covered 10 and 6 (and possibly more).

The solution was a Comet CF-360B diplexer. Intended to separate the 10M and 6M, it does quite well. Yes I loose a little. But it lets me run the Antennas I wanted. Simple quarter wave steel whips.

The Antennas are SOLID and simple. a New Old stock MLB-3001 FULL quarter wave antenna is used for 10M, with lug coax to connect to it. A Maxrad MHB5800 whip is used for 6M. This is on a Maxrad NMO permanent mount drilled in the trunk.

Yes the MHB5800 is a 2M whip. But remember a 5/8 2-meter whip is VERY close to 1/4 wave on 6meters. The MLBDC5000 (the Maxrad 6meter) is base loaded. You loose gain in the base coil, which the HMB5800 has none. This is an old time 6meter trick. -- 2 meter 5/8 for 6 meters.

The MHB-3001 is a good old-fashioned fender mounted split ball with barrel spring and LONG whip antenna. It's specified from 30 MHz to 50 MHz. But Maxrad has enough extra that it works well on 29.6 MHz. If for some reason it was a little short, I could have used a longer spring.

And Yes for those who know, both these require drilling holes in your car. -- NEVER for the faint of heart. Yet, I have seen a ham with 3 NMO holes drilled in a 2006 high dollar Cadillac. So I figured my 1992 car was cheap enough. Looking at the trunk, I found that ford had a trunk brace right in my intended install location. But there was just enough room inside the brace to get the mount in. I drilled a small starter hole thru the bottom open part of the brace in the square middle of the trunk and them used the starter hole to drill my NMO hole. Brace gives the NMO mount extra stiffness. Could run a longer whip if I wanted. But I wanted wide coverage of 6M.

No problems with the fender mount. But BOY that's a ton of holes that need to be drilled just right. -- Be sure of your drilling skills; a 10-meter quarter wave generates a ton of stress too... DO IT RIGHT!

I mounted the radio in the trunk, on the opposite side from the 10m antenna. Drilled the stud for the 12volt ground. Then I had a choice. Run the 12volt positive thru the car or under. Each had its challenges. But I ran it thru the car under the carpet; I wrapped the 12V lead in thin padded tape for cushion. ALWAYS BE SURE THE positive is FUSED near to the battery as possible!. I ran the control cable the same way. I removed and dissembled the stock Taurus pull out change tray and reinstalled it with just the frame and mounted the remote head right too it. It looks surprisingly good. Last thing to do was to put the speaker in the middle of the rear deck, between the two stereo speakers. The Motorola has a FAMOUSLY loud audio output and it works great back there.

Testing showed great SWR and performance on 10M but the SWR on 6M was higher then it should have been. 2 to 1 or so... It was equally high across the band. This told me I had a grounding problem. Scrapping the paint from the trunk under side from around the NMO mount helped a bit, but not much. Using my OHM meter I noticed no continuity from the trunk lid to the frame. So I took a braided ground strap and connected the trunk to the frame under the window. This did it. No problems now. Just left a tad of slack for trunk opening.

The result is a radio that works groundwave and skywave via Sporadic E quite well. groundwave communications on 10M FM easily bests any other band I use. -- Great for traveling. I love 10M and 6M FM simplex, and the 6-meter simplex channels fill up the radio easily. The simple quarter wave on 6 gives good coverage of the entire band.

I might add another Motorola for 2M. But those run a tad much do to demand now. So I keep an HT for the few times I actually need 2. Keeps the car looking clean.

Programming is easy now. I dug up a 386 laptop that runs off a cigarette lighter plug that had a bad HD. No biggy, it boots the 3.5 DOS floppy quite fine and I swap in the moto software floppy.

No pictures I am afraid, I am a budget minded ham and I have no working camera...

KC9JUM

Member Comments:
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A Different Sort of HF and 6 Meter Mobile  
by NE3R on February 14, 2008 Mail this to a friend!
I enjoyed this one. You don't find to many folks with 6M and 10M mobile FM, but they are around. Those who are tend to be more enthusiastic than someone who just tosses a 2 meter rig in the car. The best part will come during band openings. You won't need the 110 watts when that happens!

73 de Joseph Durnal NE3R
 
A Different Sort of HF and 6 Meter Mobile  
by K0UA on February 14, 2008 Mail this to a friend!
Sounds like a cool install, will be looking for you on 10 and 6 FM if we ever get any band openings!
73
Jim
K0US
 
A Different Sort of HF and 6 Meter Mobile  
by K0UA on February 14, 2008 Mail this to a friend!
OOPS! cant type.. its K0UA
 
RE: A Different Sort of HF and 6 Meter Mobile  
by AB9PZ on February 14, 2008 Mail this to a friend!
No pictures, bummer. This sounds like a great setup! Hey, borrow one from one of your ham friends, we'd love to see some shots.

Cheers,

Brad
AB9PZ
 
A Different Sort of HF and 6 Meter Mobile  
by KD5SFK on February 14, 2008 Mail this to a friend!
This is definitely a different sort of mobile rig! I am curious...I was under the impression that these "low band FM" commercial rigs could be aligned for either 10m or 6m. However, once they are aligned, I thought they were fairly narrow-banded, and couldn't be switched between the two bands without re-alignment. Obviously you've gotten yours working. Did you have to do anything special to get it to work well on both bands, or did the radio work well without special tuning?

Now I'm curious about your typical contacts. Are you mostly talking to folks through local 6m and 10m repeaters, or do you have a fair number of folks in your area on 6m and 10m FM simplex? How often do you encounter E-skip? Obviously, your E-skip contacts are only going to increase as we climb out of the bottom of the solar cycle, but I'm curious about how you're doing now.

Thanks so much for sharing your unique mobile rig!

KD5SFK
 
RE: A Different Sort of HF and 6 Meter Mobile  
by K0BG on February 14, 2008 Mail this to a friend!
As you've discovered, correctly mounted antennas are the real key to efficiency. However, from your description, it appears you have used the chassis of the car as a ground return, which isn't ideal.

First, the return relies on the accessory ground from the battery to the chassis, and what ever flows through the starter ground wire, and drive train. Worse, it is possible to create a ground loop which can raise havoc with on-board electronics. Fortunately, your older vehicle has a minimal amount of electronics. Had yours been a brand new Taurus (Ford 500), you wouldn't have gotten away with it.

Alan, KBG
www.k0bg.com
 
A Different Sort of HF and 6 Meter Mobile  
by KE5OFO on February 14, 2008 Mail this to a friend!
Now this is the kind of 6/10 rig I can get behind. I personaly love converted commercial gear. Most of my equip now is /\/\ gear. I might just have to keep my eyes open for one of those to go along with my Maxtracs.

Kerry
KE5OFO
 
RE: A Different Sort of HF and 6 Meter Mobile  
by KC9JUM on February 14, 2008 Mail this to a friend!
This seems to be a difference between commercial and ham radios. I used the -stock uncut- Motorola power harness. It has a 20 foot red positive power, and about a 3 foot black ground lead.

Then again the Syntor X 9000 is quite a few years out of current model.

That said I do install commercial radios upon occasion and the trunk mounts all come with a power harness just like above.

I have never heard any alternator whine or any electrical noise from the radio. The Syntor low band radios use a special receiver noise canceling system called an Extender, which is entirely built into the low band radio drawer.

The Syntor X 9000 is one of a -very- few FM lowband radios that cover both 6 and 10. Many lowband radios come in 2 or 3 different band splits. The lowest split will usually go on 10 meters, the highest split will usually work on 6 meters. The middle split is usually useless. The above goes for the Motorola MT1000 lowband HT. 10 meter or 6 meter FM HT anyone?

E skip can be hit or miss.... no one had been able to predict it yet. I can not wait for Solar max F skip....

The Motorola Syntor X 9000 is one heck of a radio. And they are fairly cheap too.... I have seem them go for $200 on overpriced ebay.... less at Hamfests. Public safety is-foolishly- dumping low band for trunked gimmicky stuff like there is no tomorrow. The market is flooded with used radios. Well unless your in West Virginia, Mountains and the Radio Telescope Radio Quiet zone put the kibosh on the gimmicks.
 
RE: A Different Sort of HF and 6 Meter Mobile  
by WI7B on February 14, 2008 Mail this to a friend!

KC9JUM,

ThanX! An un- or re-discovered gem of a radio and fine conversion. I also found a quick Google search unloads a wealth of info on clubs, conversions, and setups for Motorola Syntor X and Syntor X 9000 models.

16Khz bandwidth on FM...amen, OM!

73,

--* Ken
 
A Different Sort of HF and 6 Meter Mobile  
by KL7AJ on February 14, 2008 Mail this to a friend!
With an install like that, I can see why you can't afford a camera...HI!

Well, it's obvious you put a lot of work into it, and you probably should get it published in QST. (Of course, some people consider posting on E-ham, as "publication" and I suppose it is!)

I remember the first six meter mobile I ever saw had this this three leaf clover type, semi-horizontal thing...sort of looked like a helicopter rotor. Soneone here can remind me of what the monstrosity was called!

Good job and good luck on the magic band!

eric
 
RE: A Different Sort of HF and 6 Meter Mobile  
by KL7AJ on February 14, 2008 Mail this to a friend!
I meant ANTENNA monstrosity...:)
 
RE: A Different Sort of HF and 6 Meter Mobile  
by KL7AJ on February 14, 2008 Mail this to a friend!
I just remembered what it was called. It was a "big-wheel" antenna.

Haven't seen one in ages.

eric
 
RE: A Different Sort of HF and 6 Meter Mobile  
by KG4RUL on February 14, 2008 Mail this to a friend!
Big Wheel antennas:
http://www.ssbusa.com/wimowheel.html
 
RE: A Different Sort of HF and 6 Meter Mobile  
by KC8VWM on February 14, 2008 Mail this to a friend!
I like the ruggedness and reliability of the Motosu commercial equipment myself.

I found the convert a com especially useful in my own vehicle because you can have the best of both worlds. You can easily remove "your rig" from your vehicle to prevent theft and operate it as a 7 watt handheld (Motorola Systems Saber), or with a relatively inexpensive brick attached to the converta com it can be operated as a 35 watt or better output mobile.

I also like Motorola's simplicity of operation when operating in a mobile environment. No more scrolling through 35 different menu's to find the squelch setting while driving in downtown rush hour traffic.

..and yes, I agree Motorola speakers tend to produce very loud and booming, but yet very clear audio which can be useful at the campsite if you want to hear the latest weather report while setting up camp or even if you are just monitoring a frequency while you are located outside your vehicle.

As far as intermod is concerned, it's really hard to beat Motorola's bullet proof filtering.

Nice article, I enjoyed reading it very much. Of course I would have liked to have seen pictures like everyone else, but the article was articulated so well that it really wasn't necessary. Thank you and your install gave me some ideas to think about. See you on the magic band.

73 de Charles - KC8VWM
 
RE: A Different Sort of HF and 6 Meter Mobile  
by KC9JUM on February 14, 2008 Mail this to a friend!
I keep mostly simplex frequencies in the radio.

Due to some 10 meters repeaters permanently linked to UHF rag chew machines I do not bother with using 10 meter repeaters, I have them programed with no PLs to listen into. They make great "beacons" to look for band openings.

Apologies to Sat ops for some of the 10 meter frequencies. JA hams like to use 29.300 and English hams like 29.450 and 29.500

CH ALPHA TX RX PL
1 300 SIMP 29.300 29.300
2 400 SIMP 29.400 29.300
3 450 SIMP 29.450 29.300
4 500 SIMP 29.500 29.300
5 600 SIMP 29.600 29.300
6 620 RPTR 29.520 29.620
7 640 RPTR 29.540 29.640
8 660 RPTR 29.560 29.660
9 680 RPTR 29.580 29.680
10 ISP SIMP ------ 42.120
11 ISP TACT ------ 42.160
12 ISP SPCL ------ 42.400
13 ISP DISP ------ 42.420
14 1500SIMP 51.500 51.500
15 1520SIMP 51.520 51.520
16 1540SIMP 51.540 51.540
17 1560SIMP 51.560 51.560
18 1580SIMP 51.580 51.580
19 1600SIMP 51.600 51.600
20 2020SIMP 52.020 52.020
21 2040SIMP 52.040 52.040
22 2525SIMP 52.525 52.525
23 2540SIMP 52.540 52.540
24 2560RPTR 53.160 52.560
25 2600RPTR 52.840 52.600 100
26 3100RPTR 52.010 53.010
27 3110RPTR 52.110 53.110 77
28 3450RPTR 52.450 53.450 88.5
29 3520SIMP 53.520 53.520
30 3900SIMP 53.900 53.900
31 EMPTY
32 EMPTY
 
A Different Sort of HF and 6 Meter Mobile  
by N0CODENOW on February 14, 2008 Mail this to a friend!
Syntor X is a great radio for ham use. Have the low band version for 6 and 10 meters. Also have a high band for 2 meters. Using the Piexx modules to replace the factory prom on both radios. Low band goes right to ham frequencies without modification. 2 meters requires minor mods to vco and sometimes minor tweaking of the front end filter. Total investment about $375 for both, including the Piexx modules. I use these for home operation, too much equipment to put in the car. Great transmit audio. Receivers are sensitive and immune to intermod. A lot of people say these are the best radios Motorola ever made. The 9000 and the earlier Syn X are the same rf components. Too bad the Piexx won't work on the 9000. Even with the bulky control cables and push-button heads, I'm still happy with the plain old Syntor X radios. If you want to do FM on 6 and/or 10, these radios are the ticket.
 
A Different Sort of HF and 6 Meter Mobile  
by N0AH on February 15, 2008 Mail this to a friend!
What was youe alpha tango number again????? Did you ever live in Rome?
 
RE: A Different Sort of HF and 6 Meter Mobile  
by G5FSD on February 15, 2008 Mail this to a friend!
In Europe the 6m simplex channels are in between the ones you've listed - 51.47, 51.49, 51.51 (calling), 51.53, 51.55 etc.
Funny how we can't even standardize that! :o)
 
RE: A Different Sort of HF and 6 Meter Mobile  
by KC9JUM on February 15, 2008 Mail this to a friend!
I am wanting a high power Spectra or Spectra Astro trunk mount for 2 meters.

Might even add a 100W UHF spectra for 70CM and a 30W spectra modded for 33cm some day
 
RE: A Different Sort of HF and 6 Meter Mobile  
by KC2RGW on February 15, 2008 Mail this to a friend!
O.k. so someone explain this to a new ham here.

16k wide on 10m? From what I know, that is an atrocity.

The local repeaters run 5kHz on 10m when they are supposed to run 2.5kHz from anything I can see and that's pretty bad but it doesn't seem to bother anything.

So did I understand it correctly that you are running FM at three times the bandwidth of even AM signals?

Who else are you even talking to at that width? Most rigs are restricted to 2.5 on 10m and need modifications to even work well at 5.

Please 'splain it to me.
 
RE: A Different Sort of HF and 6 Meter Mobile  
by KC9JUM on February 16, 2008 Mail this to a friend!
16K0F3E (FM)/8K50F3E (NFM) are the names of the FM sub modes.

A 16K0F3E is 5khz deviation, the 8K50F3E is 2.5khz deviation.

16K0F3E 5khz is only LEGAL in the US above 29mhz. As it is "wider then an AM signal.

A lot of HAM 10 meter capable radios run the 8K50F3E 2.5khz signal to keep dumb ops from getting in trouble.

Sorry folks, but to me 16K0F3E sounds better, and I know enough to keep my VCO above 29mhz.
 
RE: A Different Sort of HF and 6 Meter Mobile  
by WB4LCA on February 17, 2008 Mail this to a friend!
These Motos are great radios.I've got 2m Maxtrac.Where did you get the programming software for the Syntor?
 
RE: A Different Sort of HF and 6 Meter Mobile  
by KC2RGW on February 17, 2008 Mail this to a friend!
16K0F3E (FM)/8K50F3E (NFM) are the names of the FM sub modes.

Ahhh, k, thanks. I was hoping it wasn't 16kHz LOL.
 
RE: A Different Sort of HF and 6 Meter Mobile  
by K8MHZ on February 20, 2008 Mail this to a friend!
NXET,

AD9ZP is an unassigned call.

The only 'Brad' I see on this thread is AB9PZ. Is that who you are referring to?

If so, why the animosity and unprovoked attack?

And, why the anonymity of not using a call sign? Could it be that you have been removed from this site in the past and are now coming back with the intent of not being identified?

Be advised that anyone with a little knowledge of computers and a few minutes to spend going through other posts here can identify you if they so desire. The owners and moderators of this site can do it even easier.

For the life of me I don't know why a valid ID is not required to post here. It is on QRZ now and the site has improved immensely since that change in policy.

Here is a hint for the administrators of eHam. I have decided not to make a monetary contribution to eHam, as I have in the past. Instead my contribution will be going to QRZ. If enough people decide to follow my lead perhaps the dwindling of support will incite a much needed change in policy here.

One can only hope....
 
RE: A Different Sort of HF and 6 Meter Mobile  
by RADIOGUYR2 on February 20, 2008 Mail this to a friend!
K8MHZ on February 20, 2008
NXET,

AD9ZP is an unassigned call.

The only 'Brad' I see on this thread is AB9PZ. Is that who you are referring to?

>> I am sure that is who he is citing.


If so, why the animosity and unprovoked attack?

>> Where have you been? Brad has been calling everyone -- everyone else without so much as a appology for smearing them. UNPROVOKED!!! Hardly!!!

And, why the anonymity of not using a call sign? Could it be that you have been removed from this site in the past and are now coming back with the intent of not being identified?

>> UNKNOWN to ME but, he has said many times that he likes it that way.

>> Again where have you been? Like NXET, I too choose who I want too be my friends. If I don't feel like giving out my call sign; why do you think I should. Isn't that being a little self centered and disrespectful of others wishes?


For the life of me I don't know why a valid ID is not required to post here. It is on QRZ now and the site has improved immensely since that change in policy.

>> why ? Because you say so?? Who are YOU??

Here is a hint for the administrators of eHam. I have decided not to make a monetary contribution to eHam, as I have in the past. Instead my contribution will be going to QRZ. If enough people decide to follow my lead perhaps the dwindling of support will incite a much needed change in policy here.

>>Sounds like a threat to me. You puzzle me. I fail to see why if you don't like it-- you stick around and whine like a baby crying for his teat. You are starting to sound like those folks who complain about groups on the air discussing nasty things. Just like they say-- if you don't like what you hear (in this case read) you know you can always spin the dial or use the "off-switch" feature. (simply typing in QRZ.com and hitting the <enter> key will take you away from your upsetting anger and over to QRZ that you like so much.)

Dictating to one what your personal likes and dislikes are i.e. threats-- and then you stay here and whining? If you like QRZ so much; what are you still doing here?
Just harassing others? Or maybe you really know that this is the BETTER SITE and you just want to whine for sympathy -grin-
 
RE: A Different Sort of HF and 6 Meter Mobile  
by K8MHZ on February 22, 2008 Mail this to a friend!
Radioguyr2 /NXET,

I think you are confusing a true attempt at making eHam a better site with 'threats'. I am probably the least threatening person you could ever meet. Sorry you misunderstood my intents.

7346,

Oh sorry, I mean 73,

Mark K8MHZ
 
RE: A Different Sort of HF and 6 Meter Mobile  
by WB4LCA on February 22, 2008 Mail this to a friend!
Cyber rumbles are so boring and lame... and Motorolas are so interesting...can someone take the high road and suck it up and go away so the rest of us "Motos'" can have fun.
Posting here isn't the same as having a "face to face" and a lot of meaning is lost thru the keyboard-- just let it go fellows--- lets get back on frequency...
 
RE: A Different Sort of HF and 6 Meter Mobile  
by AB9PZ on February 24, 2008 Mail this to a friend!
>>>>by NXET on February 22, 2008

Hey where did you buddy go? I went over to the Heathkit board and told them that he is over here now.
You know.... He must have made lots of friends over their from what I gather. That was just shortly before he got the boot for being so centered and friendly. (smile)<<<<


Still right here, George....marveling at all of this. Valley fog giving you the blues out there, George? Must have missed you on the Heathkit forum, but then again, they do require callsigns. In fact, I don't recall ever seeing you on there. Oh BTW, I looked up your callsign on QRZ; looks like you've sanitized your address there as well. The FCC database only has your P.O. Box listed, instead of your street address near Sac Exec. Boy, you must have really done something big to go to these lengths to be annonymous. I'm sure you'll come up with yet another alias and start hammering away again on people. Found these from 2006, looks like you've been busy.....


>>>>by RADIOGUYR2 on July 20, 2006 Mail this to a friend!
Yep I agree you need to put "Yaesu" in your spell checker. Nice article written by a lousy guy.
I suppose you will need a chest to pin your medal on now ?
good job but way too much time on your hands. Oh ya I forgot your on welfare and all alone. In that case see what you can do if you just apply yourself -- :)<<<<



Well, George (NXET, RADIOGUYR2, RADIOGOON, etc, etc, etc)....it's been real. Time to get your meds increased.



 
RE: A Different Sort of HF and 6 Meter Mobile  
by RADIOGUYR2 on February 24, 2008 Mail this to a friend!
AB9PZ on February 24, 2008

I see you're still at it Bradley AB9PZ. After reading NXETs' posting I agree. You do have a serious medical problem of being aloof and dyslic with traces of Neurotics Anonymous mental disorder.

I have taken the liberty of enrolling you in your new programs of self help. It is called Emotions Anonymous, GROW and Recovery, Inc. which uses a cognitive therapy approach. (being your a dumb EXTRA class ham, it appears from you're postings here on the web, you have already have experanced the dummy crosswired shock treatment approch)

I sent these find people copies of your emails. They responded with and suggested serious professional help is needed for you. (somthing about you being dislocated in the gene pool of life, a rare find) When told who you were they checked the Government records and said you already were on heavy sedative medication.

You can get your drugs supply renewed with Dr. Know who says he can provide you with the following:
Main hyperspace Pharmaceuticals
Express distribution
Broadest possible Alternatives
N0 medicinal direction asked for
Food and Drug Administration allowed standard
Conserve above 60 percent on your medicinal treatments
Secretly distributed to your place (oooh thats important Brad)

What further might you request?


He suggests you should carefully peruse attached document f o r specifics.

Well that should just about do it for ya.

Hams helping hams.

What a nice hobby.

Makes me feel good.

Isn't that what ham radio is all about.

Saving the helpless like you Brad.



No I am not NXET or K8MHZ or some other guy your little minds eye have made up. I suggest that you grow up and move on and stop this illusion of grandeur that we are other people.

Get on 11 meters and work some DX. You know the band is open. Make sure you use your real ham call now.

I tried using you're call sign bradley (AB9ZP)and no one would answer me back. (only cat calls and curses)

I went to echolink and called CQ. (Must have had a power failure. The link died. It got real quite)

I switched to 2 meters and they shut the repeater down.

I went to 440 and they threatened me. (Something about a dead cat nailed to my front door and chicken blood all over. Some guy kept saing Damm EXTRA dummy) Wow Brad your a popular and well liked guy.

(I went back and used my call sign. I had a couple of really good QSO's where ever I went. Nice friendly hams)

Do you really only kick the dog and throw the cat out of the 2nd story window?? Your despicable.

I am still <<<waving>>> at you, JERK-o
RADIOGUYR2
 
RE: A Different Sort of HF and 6 Meter Mobile  
by W6EM on February 25, 2008 Mail this to a friend!
KC9JUM said:"The Syntor X 9000 is one of a -very- few FM lowband radios that cover both 6 and 10. Many lowband radios come in 2 or 3 different band splits. The lowest split will usually go on 10 meters, the highest split will usually work on 6 meters. The middle split is usually useless. The above goes for the Motorola MT1000 lowband HT. 10 meter or 6 meter FM HT anyone?"

There are two more recent low band mobile radios that Motorola produced, the Maxtrac and the Radius (same thing, but with different logo/faceplate). 29.7-36 and 42-50 are the splits to get. But, it requires two radios, not one, for both 10 and 6. 50W out.

As to HTs, besides the MT1000, the P110 and HT600, are two of its predecessors. They're hard to find in ANY low band split, but, there are 29.7-36 MHz splits out there. The 110 and 600 have up to 6 channels. Batlabs dot com has some mod info for those to achieve 6 channels.

What the author fails to note is that any SYNTOR X/9000 low band radio carries one hefty premium. I've seen them on eBay for upwards of $200 each, just for the deck, less cables and head(s). The X9000 series can use the more modern A7/A9 style head, as does the Spectra. Sure wish they had made a low band Spectra.


 
RE: A Different Sort of HF and 6 Meter Mobile  
by W7KI on February 25, 2008 Mail this to a friend!
A high-split Kenwood TK-6110 (which is a TK-6110-K2) will do both 6m and 10m if you widen the frontend varactor tuning range via software. I have one and it works very well. At the present time I use a Comet duplexer though there is a way to split a 10m and 6m antenna off the same feedline: http://www.repeater-builder.com/antenna/diplex-low-band-antenna.pdf

I initially tried splitting antennas as per the above document however it seemed to give me a narrower 2:1 SWR range on 6m as compared to the Comet duplexer setup.



 
RE: A Different Sort of HF and 6 Meter Mobile  
by AC7CW on February 27, 2008 Mail this to a friend!
Mobile FM, 10 meters and up is the way to go, you can have full size antennas and channelized operation. Channels make it less distraction while driving and full size antennas remove the need for a tuner... you have repeaters on all three of those bands as well. Is there a mobile rig with an antenna connector for 10 and another for 6 and 2 to work into the 5/8 wave antenna? That would be my mobile rig of choice in the upcoming sunspot cycle.....
 
RE: A Different Sort of HF and 6 Meter Mobile  
by KC9JUM on February 28, 2008 Mail this to a friend!
I got mine at a Ham fest for one C-note complete with all the needed accessories. It is an ex ISP unit. They dumped them em-masse on the area recently.
 
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