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341. Re: [TenTec] MFJ Filter to work on TT540 (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Fri, 03 Sep 2010 14:40:14 -0500
Its good only for CW, won't pass SSB. The MFJ input impedance is much lower, can't be sure about the output impedance but that's probably not nearly the problem that loading a circuit expecting 220k
/archives//html/TenTec/2010-09/msg00042.html (7,669 bytes)

342. Re: [TenTec] yamaha head set (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Sat, 04 Sep 2010 13:06:31 -0500
I've not yet transmitted with mine, but it should do fine on FM transmit as well as SSB. I found the best price last year was at Sam Ash. 73, Jerry, K0CQ _____________________________________________
/archives//html/TenTec/2010-09/msg00063.html (7,585 bytes)

343. Re: [TenTec] Omni V receive problems (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Sun, 05 Sep 2010 17:09:52 -0500
Two solutions. A can of freeze mist and a hair dryer, or a shipping box to Tennessee. Its almost sure to be heat sensitive so heat and cool a board at a time until you find the one that has effect, t
/archives//html/TenTec/2010-09/msg00082.html (8,572 bytes)

344. Re: [TenTec] Omni D issue (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Fri, 10 Sep 2010 19:01:25 -0500
Its not the flux capacitor. Those are only part of science fiction star ships. It can be band dependent. If its on 18 MHz it could be that using the low side injection crystal is causing the the seco
/archives//html/TenTec/2010-09/msg00112.html (9,226 bytes)

345. Re: [TenTec] Omni D issue (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Fri, 10 Sep 2010 21:15:43 -0500
There is no crystal on 14 MHz. Because 5 + 9 makes 14. No need to heterodyne the PTO its already in the right place. Could be the mixer balance is off so three times the PTO is coming out the PA in t
/archives//html/TenTec/2010-09/msg00115.html (9,102 bytes)

346. Re: [TenTec] Omni D issue (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Fri, 10 Sep 2010 23:49:42 -0500
Mike has good advice. Here's another way to do that test if you have a manual tuner. Tune the antenna with another radio on 20m. Then connect the Omni D. If it won't show the same SWR, then you know
/archives//html/TenTec/2010-09/msg00118.html (9,652 bytes)

347. Re: [TenTec] love my Omni V (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Wed, 15 Sep 2010 01:00:05 -0500
I wrote an article last year on a brush for cleaning SO-239 socket pins that might be too aggressive for cleaning the power connector pins, but maybe there can be a variation on it. Likely McMaster-C
/archives//html/TenTec/2010-09/msg00135.html (8,248 bytes)

348. Re: [TenTec] love my Omni V (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Thu, 16 Sep 2010 21:33:00 -0500
I downloaded the manual and studied the display circuit. Its a multiplexed display where the driver puts out the bits for each number in sequence and a digit select line enables the appropriate chip.
/archives//html/TenTec/2010-09/msg00142.html (9,192 bytes)

349. Re: [TenTec] S Meter Problem with Omni V (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Fri, 17 Sep 2010 20:31:01 -0500
As far as I know the manual with circuit diagrams that you can download from Tentec is all the "service" manual there is. Looking at it I have found that there is an S-meter sensitivity adjustment R4
/archives//html/TenTec/2010-09/msg00147.html (9,412 bytes)

350. Re: [TenTec] S Meter Problem with Omni V (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Sun, 19 Sep 2010 10:11:53 -0500
The OMNI V manual says 50 microvolts RF at the antenna connection to show S-9 on the meter. Probably at 14 MHz. I have no idea what that is DC, probably half scale on the meter. 73, Jerry, K0CQ _____
/archives//html/TenTec/2010-09/msg00156.html (8,283 bytes)

351. Re: [TenTec] S Meter Problem with Omni V (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Sun, 19 Sep 2010 16:24:55 -0500
Fine, IF you have a 50 microvolt signal from a handy signal generator. If like the original poster you don't have such a generator, you punt. 73, Jerry, K0CQ _________________________________________
/archives//html/TenTec/2010-09/msg00160.html (9,251 bytes)

352. Re: [TenTec] S Meter Problem with Omni V (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Sun, 19 Sep 2010 17:40:41 -0500
Don't compare it to a third radio! You have done fine, just use it. The factory calibrations were never any closer. 73, Jerry, K0CQ _______________________________________________ TenTec mailing list
/archives//html/TenTec/2010-09/msg00163.html (9,295 bytes)

353. Re: [TenTec] Ten Tec Power-Mite PM-3 (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Thu, 23 Sep 2010 20:51:50 -0500
Two minutes of google, go to http://www.qsl.net/tentec/manuals/pm3.pdf for the complete PM-3 manual with complete diagrams and alignment instructions. 73, Jerry, K0CQ ________________________________
/archives//html/TenTec/2010-09/msg00183.html (8,000 bytes)

354. Re: [TenTec] Yahoo groups (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Sat, 25 Sep 2010 02:48:44 -0500
And in the past letting Yahoo have my email address has caused excess spam even on a tightly moderated list. So I don't go there. 73, Jerry, K0CQ _______________________________________________ TenTe
/archives//html/TenTec/2010-09/msg00203.html (8,820 bytes)

355. Re: [TenTec] The Eagle (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Sat, 25 Sep 2010 11:11:43 -0500
So its an updated Omni VI all in hardware, or the next Orion, where does it fit in the price/performance scheme at TT? 73, Jerry, K0CQ _______________________________________________ TenTec mailing l
/archives//html/TenTec/2010-09/msg00208.html (10,823 bytes)

356. Re: [TenTec] The Eagle (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Sun, 26 Sep 2010 15:31:52 -0500
My FT857D which is slightly smaller than the Eagle but has about the same number of buttons and controls on the front panel has decent interfacing for a transverter and a really effective TXINH line
/archives//html/TenTec/2010-09/msg00278.html (12,440 bytes)

357. Re: [TenTec] Eagle/Hamfest Pics (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Sun, 26 Sep 2010 18:52:57 -0500
But the web is the strength, not the wire. Just the opposite of flinging up an antenna made of twinlead where there's much more wind area than conductor. 73, Jerry, K0CQ _____________________________
/archives//html/TenTec/2010-09/msg00292.html (9,860 bytes)

358. Re: [TenTec] The Eagle (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Mon, 27 Sep 2010 14:55:40 -0500
Part of that comes from Collins use of RF feedback to keep down intermod products. Collins spec was 3rd order 35 dB down while most solid state rigs hardly do 25 dB down 3rd order and have a lot more
/archives//html/TenTec/2010-09/msg00335.html (9,103 bytes)

359. Re: [TenTec] Triton IV power connectors (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Tue, 28 Sep 2010 11:45:02 -0500
Mouser has then and is a lot easier to deal with than Newark or Allied. There are a couple numbers that will fit. Last I checked, TenTec also stocked the pieces at competitive prices. On Jan 27-09 I
/archives//html/TenTec/2010-09/msg00361.html (8,917 bytes)

360. Re: [TenTec] The Eagle inflation costs, etc. (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Wed, 29 Sep 2010 00:43:04 -0500
Transmitter intermod performance has gone down since the Collins S-line. Started by Swan and completed by solid state PAs. 73, Jerry, K0CQ _______________________________________________ TenTec maili
/archives//html/TenTec/2010-09/msg00392.html (11,902 bytes)

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