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Reviews Categories | Antennas: HF Verticals and Wire | Alpha ProMaster Sr Base 6-160m that is tune free on 10-80 Meters Help


Reviews Summary for Alpha ProMaster Sr Base 6-160m that is tune free on 10-80 Meters
Alpha ProMaster Sr Base 6-160m that is tune free on 10-80 Meters Reviews: 7 Average rating: 5.0/5 MSRP: $299
Description: The ProMaster Base antenna brings you multi-band 24x7x365 base system performance into a small footprint.

Technical Details: The ProMaster Sr a vertical antenna system with horizontal elements that is built around the concept of a fan dipole, where each band uses the vertical element and matching active horizontal element to achieve resonance for any specific frequency in use {f=106/(2p√LC)}. From this design, real world tests enabled us to balance the reactance between capacitance and inductance {XL=XC} with the Alpha Match on the B6160Sr ProMaster Base antenna. The resulting SWR on 10 through 80 meters requires no tuner and 6 & 160 meters are easily tuned by any antenna tuner. Again, the design technique for the antenna system mimics that of a fan dipole, where the center feed point above the Alpha Match has specially calculated wire lengths that match any specific band in use. By simoultaneously coupling the appropriate horizontal active wire element (using the path of least resistance of Ohms Law) with the 18 foot vertical element, the highest possible Q is achieved {Q=(2p f L)/R}.

Band and SWR 6 Meters - 3.8:1; 10 Meters - 2.3:1; 12 Meters - 2.0:1; 15 Meters - 1.7:1; 17 Meters - 1.6:1; 20 Meters - 1.12; 30 Meters - 1.09:1; 40 Meters - 1.9:1; 80 Meters - 1.9:1; 160 Meters - 4.8:1; (Follow the instructions in the User Manual to achieve listed SWRs)

User Manual http://alphaantenna.com/pdf/Alpha_B6160Sr_ProMaster_Base_Antenna_User_Gu ide.pdf

EzNec 3D FF Plot http://alphaantenna.com/images/EzNecProMaster.gif

Specifications: 19 feet tall and fits into a 15x15 foot area; Frequency Coverage - 1.8 to 54 MHz; Power - 1.5KW PEP; Weight - 9 Pounds

Includes: Custom heavy duty mounting hardware; One vertical element; Four active horizontal elements; Counterpoise/radial

Product is in production.
More info: http://www.AmateurRadioStore.com
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You can write your own review of the Alpha ProMaster Sr Base 6-160m that is tune free on 10-80 Meters.

KB1PDG Rating: 5/5 Apr 23, 2014 09:40 Send this review to a friend
Impressed  Time owned: 0 to 3 months
Resubmitted review with better description:
I have been using this vertical for a couple of months now. I have it on a 4' metal pipe sitting on top of a 3' wooden fence pole. My other antenna is a 270' ocf dipole and the promaster sr. does fair in comparison. Conditions and which band being used affect the performance of both antennas. Of course the dipole most often out performs the vertical, but some days on 40 meter nets it is hard to tell the difference switching between the two. I think 40 meters is the best band for the promaster. It works on 80 and 160 but of course the longer dipole has a big advantage here. Most of the time on 40-10 meters the dipole is 1-2 s units better receive than the promaster. At times it's the opposite though. I think with it up higher it would be easier to compare all bands. I will try to get it up higher this summer. Swr on all bands is good. For someone with limited space I do not believe you will find a vertical antenna that covers all bands and is easier to work with than this one. Would be a great rv or camping antenna with the tripod. Highly recommended! For what it is it performs very well.
 
NU6Y Rating: 5/5 Feb 25, 2014 10:24 Send this review to a friend
Excellent receiver, Very easy install  Time owned: 0 to 3 months
I have been looking to increase my DX range and The Alpha Pro Master has done just that. Last weekend I finally installed the Antenna (I've had it for 3 months in the box) First off every component is solid 1st class and is well made. I have it installed off if a mast attached to my chimney at 26' up. The fan dipole wires are spread out and the tuning wire is just on the roof tiles. It took about 25 minutes to set up. Now I recognize this is compromise antenna, But it works better than some of my Dipoles, Propagation this last week was a poor but 5,000 mile contacts were frequent on 10, 12 17 & 20. So my initial report is a big positive. at least until I get the tower
 
KD0JLM Rating: 5/5 Jan 11, 2014 20:41 Send this review to a friend
Great antenna!  Time owned: 0 to 3 months
It took a little over a week for me to receive my ProMaster Sr. antenna from Alpha Antennas. I ordered it with the deployment kit that includes the tripod. Setup was surprisingly easy. The cables that act as the different active elements of the antenna also serve as guy lines for the antenna, making it very stable. The cables even include stakes to secure them to the ground. A screwdriver, a wrench, and a hammer are all the hand tools you will need to get the antenna up and ready to go.

I am very impressed with the build quality of the antenna. The whip is heavy tubing, the cables are heavy duty, and the tripod, though lightweight, looks like it could support a much heavier antenna. In fact all of the components appear to be designed and built to withstand harsh conditions and last a long time.

My backyard is pretty small, and long ago I gave up any notion of ever using 160 meters. In fact, I have been using a G5RV Jr. for several years, which gets me to 40 meters. Even 80 meters was hard to use on the G5RV Jr. But with the ProMaster Sr., I was able to easily tune 80 meters and 160 meters using my Yaesu FT-897D with an attached LDG AT-897 Plus tuner. Pretty amazing that the antenna is that versatile and takes up a place in my backyard that looks like it is roughly 20 feet by 20 feet.

So from the deployment, build quality, ease of use, and operational perspectives, this is antenna is remarkable. I like the fact that for field day or emergency use I can yank the stakes, lower the whip, fold up the tripod, and quickly move the antenna to another location for redeployment. Add to that some first class customer service, and I could not be more enthusiastic about my purchase.
 
KC9VRZ Rating: 5/5 Dec 8, 2013 13:53 Send this review to a friend
Fantastic  Time owned: 3 to 6 months
Being new to the hobby I did a lot of research on antennas and felt this would meet my needs. Product is very easy to install. I have gotten crystal clear communications from both coasts. Also have heard from Mexico and Venezuela as well as Newfoundland. I am very happy with what this product can do. I will in the Spring set this up so it is a few feet higher and a little further into a clearer area and then see what happens.
 
KB9HHI Rating: 5/5 Oct 21, 2013 16:13 Send this review to a friend
High performance High durability All-Band antenna  Time owned: 3 to 6 months
I needed an antenna that would operate on all bands. My first antenna, a fan dipole at 34 feet in the middle and about 20 to 25 feet on either end, provided me a system to compare the ProMaster Sr to. Problem with my first antenna is that it'd only perform on 15, 20, & 40 meters. The antenna is insulated from whatever a person decides to mount it to, so I simply dropped a 10 foot mast pipe into the ground about two feet deep beside an old wooden fence post that I braced it braced to.

Tuning? Well, it came pre-tuned! After verifying this with an MFJ analyzer and the SWR meter in my rig, I was satisfied it was time to take it for a test drive. Yes, it does need a tuner on 160 meters as well as 6 meters.

Performance...I placed an old AB switch to toggle between the two antennas and hopped onto 40 meters CW. First contact gave me an RST of 578 and was about 1200 miles ATCF (as the crow flies) on the antenna. Switched over to the fan dipole, and asked for a signal report and got a 466. Made sure to make another 20 or 30 contacts and each one gave similar reports. So...headed to 15 meters and sent CQ a few times from my ole trusty straight key, and got Croatia on my first try. The signal report was just a 455 on the new antenna, but they could hardly hear me at all on the dipole, which faces east west.

Time has past; so enough time has past that this antenna has weathered two storms, one which packed gusts of about 80 mph. No signs of any damage from either wind, rain, sun, or anything else.

Conclusion-This is a sturdy antenna that performs very well.
 
WN0ARD Rating: 5/5 Sep 16, 2013 09:14 Send this review to a friend
Made a believer of this QRP'er  Time owned: 3 to 6 months
This antenna is one tough hombre. Pretty neat thing about having six 3 foot sections is that the 18 feet of this antenna tapers with the strength necessary to withstand a recent 90MPH wind that came through here. Not having any power put me in QRP battery mode. I was still able to make all of the necessary QSOs (plus a few DX). Not having to worry about tuning up the antenna was also a big deal, and it truly didn't need me to tune 10-80 meters. I also want to note that a branch had fallen on one of the active elements, which had pulled a wire out of one of the crimp on connectors. It was so easy to fix, that I give this antenna a 5+. Especially after considering how easy it would be to fix any part of this antenna it in the field, no matter how bad the damage might be (within reason of course). In my experience many portable antennas rely on a coil wrapped around some plastic or on a special injection molded plastic/fiberglass piece of non-replaceable or recreatable part. Not to mention the fragility of most of today's whips and base mounts. The base mount on this antenna will please the most passionate radio operator, and in my mind I cannot imagine any scenario that would damage it. And for the whip? This isn't no whip, its a real base antenna! Yeah, I'd buy another one, as a matter of fact, I already have! One for portable and one for permanent base installation.
 
KD6LSJ Rating: 5/5 Sep 9, 2013 08:02 Send this review to a friend
Bravo!  Time owned: 0 to 3 months
AUGUST 1; I must give this company highest marks for service and product. I have not experienced anything on air that performs like the Alpha Antenna that I received a couple days ago. I had the entire antenna system up and ready in less than 10 minutes. First contact reported me as a 5-8 on 20 meters to Belgium. I kept reeling in DX contacts with remarkable consistency. Checked into the 40 meter net later that evening and even had a DX contact come back and ask what antenna I was using, which he said was "working well". Popped onto 160 and after a rag chew called it a night.

AUGUST 30; The last month has been very exciting, having logged 87 DX and 398 state-side QSOs in what little time I have to be on the air. I have occasionally taken the antenna out to remote locations and use QRP. I never would have thought of a base antenna being so easily taken down and setup. An added feature is that this antenna is small enough to fit into the 38.5 inch bag from Alpha Antenna at http://amateurradiostore.com/. Bravo on such a fine performing antenna, that can be used as a base or portable system.
 


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