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121. [TenTec] Corsair II going deaf! (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue Mar 18 16:39:50 2003; Like Brian says, most likely the antenna switch on the back. I suspect that if you just touch it the receiver will either get totally deaf or come alive. Needs a drop of Deoxit. Otherwise, check the; /archives//html/TenTec/2003-03/msg00718.html (7,676 bytes)
122. [TenTec] Corsair II going deaf! (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue Mar 18 17:45:14 2003; The Corsair II has a switch to allow using a separate receive antenna. It is prone to getting oxidized and not making good contact. All other TR switching is solid state. There could be a bad cable c; /archives//html/TenTec/2003-03/msg00721.html (7,797 bytes)
123. [TenTec] virus ?? (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue Mar 18 22:33:54 2003; The recent virus spoof originating addresses so what you see is probably not where they came from. Careful digging in the detailed headers can sometimes discover at least what server they came from,; /archives//html/TenTec/2003-03/msg00729.html (8,057 bytes)
124. [TenTec] Amateur radio for home security? (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Sun Mar 23 18:48:13 2003; That's a really fuzzy area. Automated equipment on 2m must be controlled on a higher band, things like repeaters can't be controlled entirely on 2m. So a higher band, 440 or 902 would be more appropr; /archives//html/TenTec/2003-03/msg00811.html (8,863 bytes)
125. [TenTec] Omni VI+ and Corsair II receive (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Sun Feb 2 16:56:37 2003; The tunable oscillator of the Omni V and VI is synthesized, at VHF, then divided down to reduce the phase noise from its PLL. Then it uses crystal mixing for the various bands. 73, Jerry, K0CQ -- Ent; /archives//html/TenTec/2003-02/msg00066.html (7,523 bytes)
126. [TenTec] Argosy - Help - one dead band (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Sun Feb 2 20:36:04 2003; Microdrops of DeOxit on the contacts, not spray to soak the wafers. 73, Jerry, K0CQ -- Entire content copyright Dr. Gerald N. Johnson, electrical engineer. Reproduction by permission only.; /archives//html/TenTec/2003-02/msg00084.html (7,190 bytes)
127. [TenTec] Argosy & Omni woes (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue Feb 4 02:08:20 2003; Mouser. www.mouser.com Digi-Key www.digikey.com. 73, Jerry, K0CQ -- Entire content copyright Dr. Gerald N. Johnson, electrical engineer. Reproduction by permission only.; /archives//html/TenTec/2003-02/msg00152.html (6,803 bytes)
128. [TenTec] Sorry for my post (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue Feb 4 12:13:55 2003; This reflector is set up with a REPLY-TO which overrides anything a browser can do and so all replies go only to the reflector. To reply to an individual off list, one must manually copy and past tha; /archives//html/TenTec/2003-02/msg00172.html (8,742 bytes)
129. [TenTec] Sorry for my post (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue Feb 4 12:29:57 2003; Having Reply-To enabled tends to cause more responses to go to the list that should be off list, and causes more "sorry for my post" posts. And on some lists can cause moderator complaints about off; /archives//html/TenTec/2003-02/msg00174.html (8,575 bytes)
130. [TenTec] playing with the Corsair II (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Wed Feb 5 17:30:55 2003; I think 2.4 is a little wide and I often use the pass band tuning to roll off highs in my Corsair II then emphasize their roll off with a DSP audio filter or a passive speaker filter rolling off at 1; /archives//html/TenTec/2003-02/msg00273.html (9,747 bytes)
131. [TenTec] Omni V RAM battery problem (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Sat Feb 8 22:56:42 2003; Probably the memory can be powered externally. A 3 volt battery and a couple schottky diodes to allow the higher voltage of the 3 volt battery or the 5 volt supply to run the memory, maybe a resistor; /archives//html/TenTec/2003-02/msg00374.html (7,087 bytes)
132. [TenTec] confused re Corsair II VFO jumper (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Mon Feb 10 21:18:35 2003; You need another jumper, pins 2 to 6 on the auxiliary connector to get power to the onboard PTO. 73, Jerry, K0CQ -- Entire content copyright Dr. Gerald N. Johnson, electrical engineer. Reproduction b; /archives//html/TenTec/2003-02/msg00444.html (7,202 bytes)
133. [TenTec] filters for digital modes and qrp (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Wed Feb 12 15:08:13 2003; 250 would probably be narrow for pactor. The more important feature is the relative phase response of the filter. A Tentec 250 Hz filter may pass pactor unharmed while a 250 Hz Kenwood filter would d; /archives//html/TenTec/2003-02/msg00530.html (8,433 bytes)
134. [TenTec] Mail Replies - What Happened? (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Sun Feb 16 11:26:35 2003; The list administrator had no warning it was going to change. There was a glitch at the server that reloaded the mail program with different parameters. The list administrator hasn't been happy with; /archives//html/TenTec/2003-02/msg00604.html (8,823 bytes)
135. [TenTec] RX-10 (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue Feb 18 22:57:27 2003; Put a GOOD ground on your receiver. You can easily be depending on the ground through the power supply and the rectifiers are modulating that ground, whether linear supply or switching supply. A swit; /archives//html/TenTec/2003-02/msg00720.html (7,268 bytes)
136. [TenTec] 60 Meters !!! (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Sat Feb 22 20:17:38 2003; Since the fundamental PTO range is 5 to 5.5 the odds of adding a controllable 5 MHz output band without excess birdies are essentially zero. Outboard boxes might mix from some higher band but the PTO; /archives//html/TenTec/2003-02/msg00841.html (8,134 bytes)
137. [TenTec] 60 Meters !!! (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Sun Feb 23 11:07:44 2003; http://www.bright.net/~kanga/kanga/ has KK7B designed kits for the direct conversion transmitters and receivers. The latest R2PRO had a glorious article in QST a few years ago. The kits are available; /archives//html/TenTec/2003-02/msg00854.html (8,199 bytes)
138. [TenTec] Johnson PS ?? (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Sun Feb 23 15:54:41 2003; It may take a minimum load to regulate. Try it with a 3 or 4 amp load. 73, Jerry, K0CQ -- Entire content copyright Dr. Gerald N. Johnson, electrical engineer. Reproduction by permission only.; /archives//html/TenTec/2003-02/msg00866.html (6,882 bytes)
139. [TenTec] D-104 Microphone Notes (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Wed Feb 26 10:40:07 2003; The crystal D-104 needs more like 500k to 1 Meg to keep from having excess roll off. The peak in response is outside the filter pass band. The peak response has been known to overdrive audio and bala; /archives//html/TenTec/2003-02/msg00961.html (8,353 bytes)
140. [TenTec] Orion, NRD-545, DSP, filters etc (score: 1): Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue Jan 28 22:38:07 2003; In my experience, most crystal lattice filters ring adversely when hit by pulses, such as noise or fast CW. Tentec uses ladder filters that have a less square frequency response and as a consequence; /archives//html/TenTec/2003-01/msg00625.html (9,307 bytes)

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