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121. Re: [TenTec] Raspy cw tone with Omni VI (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 20 Jul 2006 10:12:51 -0500
Could be the transmit BFO has drifted to the slope of the transmit filter. Could be there's a board ground loose. Before I got into deep trouble shooting, I'd tighten all the PC board mounting screws
/archives//html/TenTec/2006-07/msg00658.html (7,914 bytes)

122. Re: [TenTec] My Rare Ten Tec microphone (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 20 Jul 2006 11:10:45 -0500
Omni directional mics are far less expensive to build and work adequately. And probably less sensitive to changing frequency response from the mouth to microphone spacing changing. -- 73, Jerry, K0CQ
/archives//html/TenTec/2006-07/msg00660.html (9,170 bytes)

123. Re: [TenTec] My Rare Ten Tec microphone (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 20 Jul 2006 12:50:44 -0500
A true unidirectional microphone takes a lot of acoustics to get a decent front to back and front to side that involves getting acoustic pressure to the back of the diaphragm to counteract that which
/archives//html/TenTec/2006-07/msg00668.html (10,155 bytes)

124. Re: [TenTec] TNC/Packet Software Help (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 20 Jul 2006 23:41:17 -0500
You should be able to run the TNC (though with manual TNC commands) from any terminal program that will talk through a serial port. There has been one supplied with windoze, I forget what its called
/archives//html/TenTec/2006-07/msg00677.html (9,007 bytes)

125. Re: [TenTec] Paragon II Speaker (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 20 Jul 2006 23:43:35 -0500
I like the metal cased speakers that came with the Motorola Micor or Motrac for communications radios. A speaker exposing top and bottom ports at equal distance may actually reduce the sound at thee
/archives//html/TenTec/2006-07/msg00678.html (8,394 bytes)

126. Re: [TenTec] Anyone using TT-1775 mini-dipole? (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Fri, 21 Jul 2006 11:42:48 -0500
Handicap on top of handicap. But less of a handicap than no antenna at all. Personally, I prefer the longest wire convenient to erect center fed with a high impedance balanced line and a versatile tu
/archives//html/TenTec/2006-07/msg00684.html (8,306 bytes)

127. Re: [TenTec] AirPax Purchase (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Fri, 21 Jul 2006 20:16:02 -0500
The added switch is a bonus, cost extra when the breakers were ordered new. Mine came in an Airpax box, since the size of my order just happened to match the number that Airpax put in one box. There
/archives//html/TenTec/2006-07/msg00699.html (10,143 bytes)

128. Re: [TenTec] Airpax arrived today (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Mon, 24 Jul 2006 10:33:52 -0500
They are fast DC magnetic. But the vendor seems to have sold out. They didn't come last time I checked the web page. -- 73, Jerry, K0CQ, All content copyright Dr. Gerald N. Johnson, electrical engine
/archives//html/TenTec/2006-07/msg00730.html (7,468 bytes)

129. Re: [TenTec] Orion firmware vs keyclicks with Alpha amplifier (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Tue, 25 Jul 2006 13:22:42 -0500
Doug Smith warns of those clicks in one of his technical papers referenced on TT's Orion page. Its titled: "On the Occupied Bandwidth of CW Emissions" The last part of its url is: cwbandwidth1.htm --
/archives//html/TenTec/2006-07/msg00750.html (9,266 bytes)

130. Re: [TenTec] Omni 6+ v. Corsair (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Mon, 31 Jul 2006 08:42:23 -0500
Omni VI+ will have better LO stability. Warm up stability might be improved by tightening up the PTO drive with a new cup and bearings or another end load washer on the back end of the shaft. The Omn
/archives//html/TenTec/2006-07/msg00831.html (9,347 bytes)

131. Re: [TenTec] Looking for Small Parts (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Mon, 31 Jul 2006 09:16:30 -0500
There were some of these at a solar place we all glommed onto and now they don't list them anymore. There will be other sources. For my Corsair II, I've been using a 15 amp ATC fuse successfully. The
/archives//html/TenTec/2006-07/msg00832.html (8,413 bytes)

132. Re: [TenTec] Being a Contrarian...." (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Tue, 01 Aug 2006 20:47:17 -0500
I AM considering my own radio design. I need to solve some basic housing issues (not for the radio, for me) first, but I've started by reading a few books on DSP for communications design, and even b
/archives//html/TenTec/2006-08/msg00039.html (11,609 bytes)

133. Re: [TenTec] Opinions from Scout Owners? (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Wed, 02 Aug 2006 11:39:46 -0500
I'm liking my FT-857D and some hams I know are liking their FT-817, significantly more portable than the Scout. -- 73, Jerry, K0CQ, All content copyright Dr. Gerald N. Johnson, electrical engineer __
/archives//html/TenTec/2006-08/msg00064.html (8,285 bytes)

134. Re: [TenTec] Opinions from Scout Owners? (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Wed, 02 Aug 2006 13:54:13 -0500
The optional filters also fit the 857 and are Collins mechanical filters, not crystal filters. For certain the CW filter is more effective at lifting a weak signal out of the noise than the DSP filte
/archives//html/TenTec/2006-08/msg00081.html (13,942 bytes)

135. Re: [TenTec] Attn vs RF Gain (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Wed, 02 Aug 2006 14:10:35 -0500
The Attenuator switch in the Corsair II is a misnomer. Its not an attenuator. It literally switches the RF stage out of the circuit and connects the input bandpass filters directly to the mixer. By r
/archives//html/TenTec/2006-08/msg00082.html (9,487 bytes)

136. Re: [TenTec] Corsaair II Problem Question??? (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Wed, 02 Aug 2006 15:40:04 -0500
I'll put out my standard broadside. Works for many vintage radios. Tighten the board mounting screws to improve the grounds. Over time the PC board material relaxes under pressure (the definition of
/archives//html/TenTec/2006-08/msg00091.html (8,810 bytes)

137. Re: [TenTec] Omni VII filters (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Fri, 04 Aug 2006 09:29:02 -0500
S-line vintage Collins filters were bad about ringing. The IF output connector showed a continuous envelope from line noise. They turn static clicks to lengthy crashes. The rounded shoulders inherent
/archives//html/TenTec/2006-08/msg00171.html (7,905 bytes)

138. Re: [TenTec] Corsair II (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sun, 06 Aug 2006 11:46:20 -0500
Spot shifts the receiver that 750 Hz without changing the display. Lowers the frequency response so zero beat can be more easily detected. I just checked my Corsair II. -- 73, Jerry, K0CQ, All conten
/archives//html/TenTec/2006-08/msg00271.html (8,710 bytes)

139. Re: [TenTec] Corsair II (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sun, 06 Aug 2006 11:50:18 -0500
The display is the receiver zero beat or SSB carrier frequency at all times. Neither the display nor the receiver frequency changes when changing mode or keying the transmitter. Unlike the Omni V and
/archives//html/TenTec/2006-08/msg00272.html (9,056 bytes)

140. Re: [TenTec] Corsair II (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sun, 06 Aug 2006 17:06:29 -0500
True its not your transmitting frequency. But not all "modern" rigs display the tone frequency if you matched tone. One would not want to depend on the sidetone of the Corsair as being representative
/archives//html/TenTec/2006-08/msg00294.html (9,717 bytes)

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