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361. [Fwd: Re: [TenTec] Power supply on floor] (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Thu, 01 Oct 1998 15:29:36 -0500; Message-ID: <3613E50A.52B2@ames.net> To: <tentec@contesting.com> Date: Thu, 01 Oct 1998 15:24:42 -0500 From: "Dr. Gerald N. Johnson, P.E." <geraldj@ames.net> Reply-To: geraldj@ames.net Organization:; /archives//html/TenTec/1998-10/msg00009.html (7,338 bytes)
362. [TenTec] Corsair II Current Requirements (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Fri, 02 Oct 1998 12:14:17 -0500; The book says 18.5 amps. 73, Jerry, K0CQ -- FAQ on WWW: http://www.contesting.com/tentecfaq.htm Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.com Problems: own; /archives//html/TenTec/1998-10/msg00015.html (6,744 bytes)
363. [TenTec] Gheil chip info (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Fri, 02 Oct 1998 20:31:22 -0500; Last week I found a web sight. Its from Jack Giehl (I think that's the correct spelling). I didn't make note of the address, but an Alta Vista search turned it up. 73, Jerry, K0CQ -- FAQ on WWW: http; /archives//html/TenTec/1998-10/msg00018.html (6,907 bytes)
364. [TenTec] Repeater Manual (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Sat, 10 Oct 1998 17:08:31 -0500; Have you tried Uniden? They make Bearcat and own Regency. I've found them to supply manuals and schematics when available for the cost of the phone call or letter. Its: Phone for Tech support. 1-800-; /archives//html/TenTec/1998-10/msg00086.html (7,056 bytes)
365. [TenTec] Front End Protection (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Mon, 12 Oct 1998 11:31:41 -0500; Protecting a front end is tough. A quarter wave shorted stub on that T would be more effective for static. An RF choke should work though it won't take a direct hit. The coax may not survive a direct; /archives//html/TenTec/1998-10/msg00105.html (9,068 bytes)
366. [TenTec] Front End Protection (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Mon, 12 Oct 1998 11:48:31 -0500; Actually since its DC to be dissipated and RF to be not dissipated, a wire wound resistor is most applicable because the inductance of the winding will raise the RF impedance without affecting the DC; /archives//html/TenTec/1998-10/msg00108.html (8,843 bytes)
367. [TenTec] Front End Protection (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Tue, 13 Oct 1998 11:34:46 -0500; The snap across a coax connecter will make you rise out of your boots. .005 mfd charged to 20 kv, seems like enough energy to zap a lot of radio parts. Better to drain than to try to withstand. Energ; /archives//html/TenTec/1998-10/msg00123.html (9,291 bytes)
368. [TenTec] Front End Protection (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Wed, 14 Oct 1998 09:26:22 -0500; If you have an SWR of 50 at the INPUT of the tuner and apply a KW, more than that protection resistor will be fried. The remains of the resistor may not be detectable in the ashes. Go with a lower va; /archives//html/TenTec/1998-10/msg00144.html (9,306 bytes)
369. [TenTec] paragon operating advice (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Thu, 15 Oct 1998 01:32:17 -0500; Bill: In the Corsair II the spot switch shifts the BFO and the local oscillator so the received CW signal would be zero beat if you were transmitting exactly on the same frequency. Otherwise you have; /archives//html/TenTec/1998-10/msg00159.html (9,039 bytes)
370. [TenTec] 2.8 filters for Ten Tec and other Ten Tec info (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Wed, 21 Oct 1998 09:55:58 -0500; In my Corsair II there are switch provisions for 4 filters, two for SSB and two for CW in the second IF. No provisions for changing the first IF filter though likely a different filter would plug in.; /archives//html/TenTec/1998-10/msg00219.html (7,586 bytes)
371. [TenTec] TVI Problem (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Wed, 21 Oct 1998 20:20:51 -0500; A TVI filter can reduce harmonics more than the internal filters of the radio, but only if its mounted very close to the radio, essentially directly to the coax connector. TV interference is from har; /archives//html/TenTec/1998-10/msg00227.html (7,798 bytes)
372. [TenTec] Zero Beat (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Thu, 22 Oct 1998 19:24:57 -0500; Zero beat means different things for AM, SSB, and CW. It was easiest for AM where you turned on your VFO in spot mode and adjusted for minimum frequency beat note. Remember as you tune the transmitte; /archives//html/TenTec/1998-10/msg00233.html (11,067 bytes)
373. [TenTec] How do I rebuild the PTO? (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Fri, 30 Oct 1998 10:57:08 -0600; There are a couple problems in Tentec PTOs. All the details are in the Tentec archives. Grease is a problem, but the brass shaft and brass ball race also get worn. There are a lot of details included; /archives//html/TenTec/1998-10/msg00300.html (7,022 bytes)
374. [TenTec] BFO on single conversion rcvr (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Thu, 17 Sep 1998 08:48:57 -0500; Sure, you tune the BFO and the main tuning in opposite directions at the same time. Collins did that mechanically in the 75A4. The main tuning PTO and BFO PTO were mounted on trunions connected toget; /archives//html/TenTec/1998-09/msg00277.html (7,381 bytes)
375. [TenTec] Offest tuning range in Triton IV (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Sat, 19 Sep 1998 17:42:24 -0500; If the 10K pot has full supply voltages applied, changing to a 5K pot will probably not change a thing. Though if the offset tuning loads the pot some, using a 5K pot should make it more effective, e; /archives//html/TenTec/1998-09/msg00323.html (7,409 bytes)
376. [TenTec] Omni V controls and Corsair II (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Sat, 19 Sep 1998 20:25:13 -0500; I took the time this afternoon to compare an Omni V and a Corsair on the same antenna (A-B switch) on both SSB and CW. The Omni V performed slightly better on weak signals but it was very close. Howe; /archives//html/TenTec/1998-09/msg00326.html (8,982 bytes)
377. [TenTec] Omni QSK with Alpha's 87A QSK (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Mon, 21 Sep 1998 08:14:41 -0500; Not so! You only get about a nanosecond delay per foot of cable. To accomodate relays you need 10s of milliseconds, e.g. the delay of ten million feet of cable! Collins specified the length of the RF; /archives//html/TenTec/1998-09/msg00375.html (9,001 bytes)
378. [TenTec] FW: Corsair II Current Requirements (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Tue, 22 Sep 1998 10:29:09 -0500; 200 watts input to the PA means it will draw about 15 amps. The rest of the radio and drivers will take a few amps, so like other similar powered radios 20 amps peak and 15 or 16 continuous should do; /archives//html/TenTec/1998-09/msg00400.html (7,237 bytes)
379. [TenTec] Omni V controls and Corsair II (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Tue, 29 Sep 1998 21:01:22 -0500; Frank, my solution is that I bought a Corsair II instead of an Omni V or VI. I asked a loyal HF user of the Omni VI last night about its shifting frequency and modes and he confirmed it does the same; /archives//html/TenTec/1998-09/msg00463.html (8,842 bytes)
380. [TenTec] Computer noise in radio (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, P.E.); Date: Wed, 30 Sep 1998 08:30:18 -0500; I've noticed that cases and motherboards made to meet European standards are much quieter. Cases should have multiple spring finger cover contacts and covers for the unused drive holes in order to pe; /archives//html/TenTec/1998-09/msg00470.html (8,103 bytes)

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