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From: Bill Grassa, N4ATS To: tennadyne@tennadyne.com Sent: Monday, January 14, 2008 Subject: T6 Performance
Awesome
construction and Class "A" workmanship. Simple to put
together
(1.5 hrs) and is pretty much self explanatory when assembling. I got mine on a Thursday , up and running on Friday. Antenna is 55 feet and I put it up myself! Very light but strong. Signals jumped 3 to 4 "S" units compared to my taken down my Cushcraft MA5B. Great antenna! Thanks Tennadyne.
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From: Freddie Ferrell, WA5EMA To: tennadyne@tennadyne.com Sent: Wednesday, December 14, 2005 Subject: T6 Performance
Hi Roger
Just a update on my T-6 antenna.
Has been up one year this week. Just logged my 1200th contact.
1050 of the contacts on 17 meters. Have worked 44 counties. Great
antenna Thanks for all your help.
73's
Freddie
WA5EMA
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From: Lyndon Smith, K7XV To: tennadyne@tennadyne.com Sent: Friday, August 29, 2005 Subject: T8 Performance I am so glad I selected this antenna !!!!!! Happy camper here !! I have enclosed a copy of my review I posted on eham.net Thanks for a great antenna !!! This antenna has me well pleased indeed. I put it up after retiring a Cushcraft A3 antenna. I can tell a big difference between the two antennas. The improvement was like going from a flashlight to a laser beam!! When I turn it to the side I can almost tune out the received signal. Front to back ratio is good as well. I am very happy with this antenna. I have been busting pileups on the first call with 100 watts. No traps! No moving parts! No sun damaged control cables to replace. Work 5 bands 20 thru 10 meters. Under $700.00 includes shipping. A well made strong no maintenance antenna. A blast to put together. The owner of the company answers the phone. That’s a new twist!! Like Lee Iacocca said "If you can buy a better antenna for the money buy it!" Lyndon Smith, K7XV |
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From: Bob Capozzi, K4ENZ To: tennadyne@tennadyne.com Sent: Monday, July 11, 2005 Subject: T6 Many thanks for a great performing antenna. First thing I ever put up in the air that the XYL said looked good. I run about 95% QRP/Solar Power and for the most part, if I can hear them, I can work them. It was money well spent. You can see Bob's T6 by clicking here. Bob Capozzi, K4ENZ |
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From: John King, W3ADC To: tennadyne@tennadyne.com Sent: Wednesday, May 25, 2005 Subject: T8 Pile up Buster !!!! You can see a picture of John's T8 by clicking here. John King, W3ADC |
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From: Don Etters, W4DEE To: tennadyne@tennadyne.com Sent: Monday, May 23, 2005 Subject: T8 Great antenna ! I have worked over 70 countries I needed on 17 & 12 with just 80 watts of power, no amplifier. I break pileup and get 57 and 59 reports every time. I am well pleased. Thanks for a great antenna ! You can see a picture of Don's T8 by clicking here. Don Etters, W4DEE |
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From: Bill Priakos, W5SJ To: tennadyne@tennadyne.com Sent: Monday, May 02, 2005 Subject: Installation of T10 and T28 Thanks to Tim, K5RA, Tower Monkey, Lynn, W5FO and Randy, K5BOC ground support staff for all their help in getting the two antennas in the air and special thanks to John, W5ATW, John, KB5JPY, and countless others who helped along the way to get everything ready to go. It works great! At last, I have a directive array! Great picture of Bill's crew installing the T10 and T28 can be seen by clicking here. Vy 73, Bill, W5SJ |
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From: Ken McClellan, KB5FPW To: tennadyne@tennadyne.com Sent: Thursday, April 28, 2005 Subject: T6M All reports I have are great. Great front to back ratio and very good forward Db gain. Tropo contacts at 200 miles easy. DX is a dream. Antenna is sitting at about 100 feet. 73, Ken McClellan, KB5FPW |
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From: Bob Pointer, N9XAW To: tennadyne@tennadyne.com Sent: Friday, April 22, 2005 Subject: Aluminum with an Attitude DE N9XAW Today we had a nasty little storm front move through. Weather alert sirens were going off everywhere. Gusts of 60 mph were recorded. My Tennadyne looked like it was trying to fly flapping in the high winds. As tree limbs came down and power lines fell, the Tennadyne held in there. Later when the storm passed and the sun returned, the tennadyne shined brightly as ever against the blue sky. It seemed to say "is that all you can do" to the passing clouds. Earlier in the winter months I was very nervous when it was coated with ice and drooped like a donkey's ears. It shook it off with no ill effects. It truly is aluminum with an attitude. Thanks again. Bob Pointer Evansville Indiana N9XAW 73's |
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From: Joe Allis, K4SH To: tennadyne@tennadyne.com Sent: Monday, March 21, 2005 Subject: T8 Hi Roger: Got the mighty T8 up and running. I busted through a pileup to Gitmo and Slavik Rep. first try on both running barefoot. I know that some of the folks around me were running amps because of the bandwidth they were using. Anyway, thanks for all of the help! It works great! You can see a picture of Joe's T8 by clicking here. Thanks, Joe, K4SH |
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From: David Myers, SR W4USA To: tennadyne@tennadyne.com Sent: Monday, October 11, 2004 Subject: T10 and Hurricanes Rog, Just wanted to let you know.
4 Hurricanes in
5 weeks David Myers, SR W4USA |
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From: Don, W4YCH To: tennadyne@tennadyne.com Sent: Monday, October 11, 2004 Subject: Slipp-Nott clamps Hi Rog, Just want to drop you a note and say thanks for adding the Slipp-Nott boom to mast bracket. Just got my T-8 back up in the air after some tower work. The Slipp-Nott is a big improvement over the old U-bolt arrangement. Attached is a picture. Again thanks for your efforts. 73, Don, W4YCH |
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From:
Göran Jansson, SM5CKI To: tennadyne@tennadyne.com Sent: Monday, August 30, 2004 Subject: T8 Installation
I just want to send You a photo of my
Great T8 antenna in Uppsala Seden
Best regards
Göran Jansson
SM5CKI
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From: Russ K9DXR To: tennadyne@tennadyne.com Sent: Monday, August 16, 2004 Subject: Follow up on previous T6 installation Just a follow up on performance of the T6, have worked just today XX9TVR on 17 meters and received a 59 report. Outperforms a local friends 5 element monobander for 17, no surprise for me though. Managed to work the YV0D dx-pedition on 17 and 20 on first call each. Needless to say I'm very happy. Thanks again. 73, Russ K9DXR |
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From: Randy Downs, W8RAN To: tennadyne@tennadyne.com Sent: Wednesday, August 11, 2004 Subject: New T10 Well, I got the T10 up on the tower. Match is good. Only one complaint. Now I have too many people trying to call ME when I am rag chewing. I have never had this problem before.......I hear Europe, Asia and others I could not hear on my other antennas. Thanks, Randy Downs, W8RAN |
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From: Jan C. Robbins, N0JR To: tennadyne@tennadyne.com Sent: Tuesday, August 10, 2004 Subject: T620 Howdy Rog, The T620 is working fabulously well. I am delighted with it. Now, can you make me a similar antenna (T617) for 17 meters? SWR is no higher than 1.5:1 across 20m. Performance seems excellent! Many tks!! Jan N0JR |
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From: Don Miller, WD4CWE To: tennadyne@tennadyne.com Sent: Friday, June 25, 2004 Subject: Newly installed T8 @ 55 FT' Hey Roger, just a few in the logbook for the T8. The T8 works like a top! Check these out! This is an awesome antenna!
73's WD4CWE |
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From: Neil Hood, K4JE To: tennadyne@tennadyne.com Sent: Thursday, May 27, 2004 Subject: Installation and performance of new T12
The T-12 is really a very strong piece of work. The double boom gives
the T-12 which is built to last and should make it through any type of
storm that nature may throw your way. The elements fit exactly how they
were meant to fit. I still find it hard to believe that Tennadyne could
make so large of an antenna (30 ft. boom with 12 elements) less than 60
pounds. |
| From: BPointer@evansvillepolice.com
To: tennadyn@satx.net Sent: Wednesday, October 22, 2003 12:54 AM Subject: Still happy I was the first in my area to get one of the new Tennadynes. I can say proudly, after two years it is going strong. It still looks sharp after two seasons of winter ice and spring tornado seasons. I have the T6 up 48 ft. I wouldn't trade it for anything. I recommend it to everyone I talk to. It works great and is beautiful to look at. N9XAW Bob Pointer |
| From: Doug Hall Subject:
Got the T8 up this weekend To: Charles Brainard Sent: Monday, March 31, 2003 1:00 PM Hi Chuck, I took Friday off work and finished assembling the T8. I found the manual to be easy to follow, and as with most HF antennas, it takes a few hours to assemble, but I could assemble one now in half that time now that I understand how it all goes together. If you understand the theory behind an LPDA, it's kinda hard to mess it up. The only assembly problem I had was that one of the boom mount nuts galled (or froze or something) as I was putting it on and I ended up cutting that bolt and getting a replacement at the hardware store. My co-worker George, K8QM, came over at lunchtime and we began the process of removing my Force12 C4 and putting up the T8 in its place. The whole process, from unpacking the box to the finished result is documented at: http://www.pobox.com/~doughall/Antenna in case you're interested. You've probably seen enough installations to last the rest of your life. Anyway, we finished up around 5PM Friday. Chuck, I could kick myself for not buying one of these years ago! (To borrow from the vegetable juice commercial: "I could have had a T8!") 12 and 17m are like whole new bands now. I played around on the bands over the weekend and was amazed at the performance. It's better than my Force 12 C4 in every way - there is no comparison. My third QSO was late in the evening on 15m SSB when I worked 6N0YO in Korea. Nobody else was going back to him, and you'd have thought the band was dead. Other highlights over the weekend include a 30 minute ragchew with VK2BA on 10m AM with 25 watts, and a 30+ minute ragchew with NH6I on Maui on 17m yesterday afternoon. I had no less than three people to tell me yesterday on 17m "You're the loudest signal on the band today." No regrets, except now I wonder if I should have considered the T10 or the T12. No doubt that I'll buy one of them one of these days. An LPDA is the only way to go. 73, Doug Hall, K4DSP VP, Technology JPS Communications, Inc. Raleigh, NC |
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| From: allan g0ias To: Tennadyn@satx.net Sent: Thursday, November 21, 2002 Subject: Antennas... |
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| Hello Chuck...Been meaning to write since I first put up my T8....Three years ago... Been too busy working the DX..!! Thanks for a great antenna,... unlike maybe a lot of Hams ... I can only compare it to 3 other antennas I have owned... A TA33 Junior... a TH6... and a stacked pair on Cushcraft... An A4S and an A3WSfor the WARC bands....The only thing I can say is ... I wish I had purchased the T12 instead of the T8... I have friends who have seen my Log... and gone out and bought 10's and 12's... M5AAS... and G0DCF... they are so pleased with their purchases also ... Don't miss much in the way of DX with the IC775 Barefoot... but if I need to beam over the QRM factory of Europe a little help from my 922 says its not long before I hear G0IAS 59...!! its helped me keep my scheds with the 7Q's I manage without any problem....I just can't praise the antenna enough....Thanks once again.... IF for any reason I ever need to replace this T8... it will be with a T12.... Regards and best wishes... Keep making those super LP's... I'm trying to get 5Z4FM to spend some money..... Allan G0IAS / 7Q7AH and others.ps.. sorry about picture quality... it was cold and windy outside... and the camera has seen better days... | |
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4 July, 2002
Chuck - TENNADYNE
When the band closes out and the last of the
big guns are still talking, they're all running Logs.
Radio Dave - N0EDS
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August 03, 2002 |
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"Mother Nature, in the form of winter, recently (Feb., 2002) paid a visit to Dan's (K0DAN) Missouri QTH. She coated his TENNADYNE T10 with an inch of ice." |
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"A cold and icy beginning at K0DAN" |
"Hanging in there |
"Aaahh! |
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From: Henry
Kenealy To: tennadyn@ktc.com Sent: Saturday, June 01, 2002 5:21 PM Subject: T-10 on the Roof of the U.S. Department of State
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| From: Warren Dean To: <tennadyn@ktc.com> Sent: Monday, December 10, 2001 11:31 PM Attach: tennadyne.JPG; tennadyne2.JPG; tennadyne3.JPG; straightup.JPG Subject: Antenna Photos Chuck, After 6 months of using your T-6 antenna, I can say that is everything you said it was. I have had nothing but good results with it and brag on it's performance to the point of being obnoxious! If I ever need another antenna, it will surely be a log periodic from Tennadyne. By far the best antenna out there.
Warren Dean |
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| 7 Dec, 2001 HOW WELL DO TENNADYNE LOG-PERIODIC ANTENNAS WORK? Within a 24 hour span, W5OZI (T12), AA5XE (T6) and KA1PM (T8), DXers all, from sparsely populated Kimble County, TX, all worked P5/4L4FN on 20M through the huge free-for-all pileups that have accompanied the P5 showing up. 'Nuff said? |
| From: Richard Schmitz / Optima
Precision Inc. To: <tennadyn@ktc.com> Sent: Thursday, November 15, 2001 10:07 PM Subject: T6 comments Chuck, I've been meaning to write and tell you what a great antenna the T-6 is. It took me much longer than expected to get the antenna installed -- no fault of the antenna -- I just didn't want to rush it and most of the time was spent making a "tilt" base for a Force 12 crank up tower. In any case, I've been having a ball with the T-6. The first day it was up, I was making DX contacts with ease. I can't say I was busting pileups into Africa (from the Pacific Northwest, that's not easy) however, if it's Europe of the Pacific it's remarkable how good it is -- one or two calls and I'm in (this is with a 100 watts). The maximum height of the tower is only 42 feet, and so far I've been working with the antenna at about 35 feet, just getting used to what the tower can stand in our breezy weather. Even at this modest height, it's been absolutely outstanding. For instance; yesterday we had a good 6 meter F2 opening into the northeast.... I worked more FN grids in 20 minutes than I've worked in 2 seasons with my M2 6 meter beam... same afternoon I worked my first JA on 6 meters... and 10 minutes later I worked Mongolia on 12 meters, a few minutes later a ragchew with TF8GX in Greenland... today I picked up 14 more JA's on 6 meters. Yes, I know the T-6 isn't spec'd for 6 meters, but it doesn't seem to know it. In the process of checking the SWR, I noticed it's very low on 2 meters, (1.4:1)... so I have to try that next just for grins. (TENNADYNE: This is often the case with all of our HF LPs, however, it's nothing that can be guaranteed and so we don't promote it. The pattern on 6 & 2M will tend to be heart-shaped, more so on 2m.) The assembly of the antenna is such a pleasure. It's very logical and would be difficult to mess up unless you get elements in the wrong place -- having built a log before, I knew what it should look like. In any case, it's very refreshing to put together an assembly of close tolerance parts with no surprises. (Several times I wondered how you get such round holes in the booms -- especially the larger diameter ones. I know this isn't an easy task and it's very critical). I had only two holes that needed to be enlarged (elongated). In each of the boom splices, one of the holes did not align between the angle slice and the square tube. It was the same hole in each assembly -- even allowing the parts to stay loose until all the fasteners were started, the hole would not align. Not a big deal -- just thought you might want to know. Last but not least -- the antenna really looks good. Maybe this isn't normal ham criteria, however I'm very pleased with the appearance and the XYL agrees. You might remember I asked you whether it's okay to have the parts chromated, well they turned out beautiful. Before I sent everything to the plater, I grained every part with Scotchbrite; I used a lathe to finish the elements and a random axis sander on the booms. Also installed a PL259 mating connector on the bottom of the boom like we discussed. I'll try and get a decent picture of the antenna and email you one if it comes out okay. Bottom line... a very happy camper here. 73 Richard W7YES |
| From: John M. Stockberger To: Tennadyne Sent: Saturday, October 20, 2001 3:38 PM Subject: My New T-11 Chuck: I just want to tell you how happy I am with my new T-11 antenna. I have been getting excellent reports out of Europe, Asia and VK/ZL locations. I am only running my ICOM 756PRO barefoot at about 100 watts output. I have the T-11 mounted at 72' about 6' above my forty meter 3 element beam and the VSWR is almost 1:1 on all frequencies. I had second thoughts about mounting it this way after talking to someone there at Tennadyne, but I didn't want to give up my forty meter beam. Just thought you should know how pleased I am with my new installation. Thank You. 73's John Stockberger W9THI |
| From: hasan schiers <schiers@netins.net> To: <tennadyn@ktc.com> Sent: Saturday, October 13, 2001 11:05 AM Subject: Wow! T-6 @ 50' As a previous owner of a T-10 for six years or so, when I moved, I wanted to go smaller, so I bought a T-6. It is up at 50' on a Rohn HDBX-48 self supporting tower, mounted with a 1.92 inch .145 wall aluminum mast from Glenn Martin Engineering. It is mounted about 18 inches above the top of the tower. I have had it up two weeks and have dabbled a bit with it, but this morning was my first serious work with the antenna. Among the nicer catches over the last several days, nearly all first call: 3d2cy 10m 9h3q 20m wh2dx 10m zk1etw 20m vu2wap 20m long path t77c 10m 7x4an 15m 3d2cy 15m ah7u 10m 9g1uw 17m fo0deh 15m zb2jo 12m xx9tep 15m 5n2bhf 10m hv0a 10m 9k2hn 10m Nearly all these were in pileups...the 9k2 was huge and said I was running 10 dB over S-9. Propagation was obviously good. The VSWR is, of course not as good as the T-10, but the actual performance is amazingly similar. If I believed in magic, I would say there is something very special about Log Periodic antennas. The antenna seems to perform better than it's gain and height would indicate...but that is very unscientific, and I would never make that kind of claim in public. What I can say is this is a MARVELOUS antenna. It is built beautifully and what a wonder. I'm running the antenna with an Ameritron ALS-600 Power MOSFET amp. (I have had it for many years). The amp has SWR/Load Fault protection and I find to run full power on 18 mhz, I have to put the tuner in line. I'm seeing about a 2:1 vswr on that band. Most other bands it is less than 2:1....down around 1.5 to 1.7: 1. The feedline is 110' of LMR-400. I can find nothing to complain about ....I did double-nut the shorting stub, instead of unassembling the existing nuts. I also used your balun. I am sooooo glad I went with the T-6 instead of something bigger. I loved my T-10, but now I can feel fairly confident that things will stay up even in big storms. It is a beautiful thing to behold perched above our A FRAME home. I hung a 40m inverted V just below (maybe 3 or 4 feet) the antenna and can find no SWR interaction when I rotate the antenna on 15m (full 360 degrees). F/B is very good on DX stations. I will be making some mearurements with a calibrated attenuator when I have time. 9K2HN is 59+10 off the front and about 5x4 to 5x6 off the back on 10m. No S-meter can be trusted, so I wouldn't read too much into this, except, it obviously has a reasonable F/B...and that's all I care about. High Angle arrival signals on 20m and 10m have virtually no F/B and that is to be expected. Again, thanks for producing such a well constructed, easy to assemble, STERLING PERFORMER. This is soooo much fun! 73 p.s., and the price is downright reasonable! hasan schiers, N0AN schiers@netins.net or use amsat.org or arrl.net remailer |
| From:
<KZ5TX@aol.com> To: <tennadyne@ktc.com> Sent: Saturday, March 10, 2001 10:40 AM Attach: T12 - 1.jpg Subject: photo of T12
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| 6
February, 2001 Hi, Chuck! It has been just about five months since I installed my Tennadyne T-8 antenna. To say that I am totally satisfied is an understatement, this is one fantastic antenna! The antenna assembled perfectly, the first time, following the detailed instructions that you provided. I was amazed at the precision of the assembly and the rugged construction of the antenna. After completing the assembly, I set the T-8 on a couple of saw horses in the backyard to double check the connections and to check the VSWR. To my surprise I found that the antenna was nearly perfectly flat (<1.2:1) on 10, 12, 17, and 20 meters, and only 1.8:1 on 15 meters. While still sitting on the saw horses I gave a call on 10 meters and was greeted with a S9+20 from Finland! Rather surprising considering that the antenna was only 2 1/2 feet above the ground! Since installing the T-8 on my 50' tower the results have remained the same, almost a perfect match on all the bands! So low I don't even bother with the antenna tuner on any band other than 15 meters. The signal reports consistently start with "S9+..."! Many contacts have been very surprised when I tell them I am running "barefoot" with only 100 watts. Needless to say I am very pleased with the performance of the T-8! It is everything I had hoped it to be, plus more. Thanks for a great product! 73, Dave Gendle - K4DLG |
| 17 November, 2000
Hi, Chuck, The enclosed snapshot is for your collection of very satisfied customer replies. The T8 went together easily and I enjoyed doing the project. Not so with the Glen Martin 50 foot tower and Hazer but that is another story. Based on my long experience with previous commercial beams, I was prepared to do some tweaking, probably the shorting stub, to reduce SWR. That was unnecessary as the SWR is 1.3:1 to 1:1 all across the five bands. Granted that we are enjoying great propagation at the peak of Cycle 23, I am more than pleased with my ability to bust DX pile-ups using the TENNADYNE T8. It has been a real pleasure doing business with you, Chuck. I hope that we can have a QSO in the future. 73/DX Bill W0YDB |
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In
March of 2000 it was my privilege to be part of an effort by many hams
to rescue Willem van Tuijl. A
United States medevac helicopter was sent to pick up mother and son to
transport them to La Ceiba, Honduras where medical facilities were much
better. I
(with the help of the U.S. Embassy in Tegucigalpa) called the hospital
in La Ceiba and was able to phonepatch Jacco and his wife Janni
together. Willem was in
emergency surgery at that time.
Over
the next three days I maintained contact with Jacco on his boat and in
La Ceiba when he arrived there through the kind assistance of Hector,
HR3HGB. I was able to co-ordinate the efforts to transport Willem via
hospital jet to Children’s Medical Center in Dallas where he underwent
further treatment. Willem
survived. Chuck—the
Tennadyne T-8 Log Periodic that I am using played a very important role
in rescuing this young man. Many
times Jacco told me that he was unable to hear anyone else but me.
I know that if I had been using an inferior antenna I would not
have been able to perform the tasks required. You
should be proud of a great design.
It works. 73, Ed Petzolt, K1LNC |
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E-mail to:
Tennadyne@ktc.com Chuck: |
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