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Total 159 documents matching your query.

141. Re: [TenTec] Pleeese... Drop me like a HOT Potato! (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Tue, 04 Feb 2003 18:23:51 -0600
Hot Potato Good list hun? If you want a list with no e-mails join the AOR list! One of the things I like about this list, is the activity, this and the antenna list has proven to be informative and e
/archives//html/TenTec/2003-02/msg00245.html (7,585 bytes)

142. Re: [TenTec] Receiver Specs (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Thu, 09 Jan 2003 06:20:23 -0600
Here is one dummy version. Receiver dynamic range was a periodic check that was made to a FAA long range radar receiver (part of ARSR-1D). The check was made in the following manner. A signal generat
/archives//html/TenTec/2003-01/msg00183.html (10,702 bytes)

143. Re: [TenTec] Receiver Specs (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Thu, 09 Jan 2003 06:41:05 -0600
These phony (spurious) signals are called "intermediation distortion" or IMD's. They are generated in the "not quite perfectly linear" stages of your rcvr. . I have heard this referred to as "interm
/archives//html/TenTec/2003-01/msg00185.html (9,351 bytes)

144. Re: [TenTec] milliwatt WAS .. Got the cards !!! (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Sat, 11 Jan 2003 08:26:48 -0600
kudos to you George. But more kudos to those who had the patience and skills to pick out your "weak" signal and took the time and expense to send you a qsl card. There is where an award is deserved!
/archives//html/TenTec/2003-01/msg00249.html (8,121 bytes)

145. Re: [TenTec] Corsairs, Pro II, etc hi hi....interesting replies! (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Fri, 31 Jan 2003 07:07:39 -0600
When did Ten Tec have a dealer net work and who handled their product? I had never heard that....very interesting bit of "history". Seems like I ordered my Ten Tec Model 544 in 1976/77 from a dealer
/archives//html/TenTec/2003-01/msg00706.html (8,963 bytes)

146. Re: [TenTec] Even MORE on vertical antennas! (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Tue, 03 Sep 2002 07:36:27 -0500
SNIP When I lived in FL I had 2 antennas, one a Butternut HF6V with WARC bands and a center fed 125 ft wire. I had the Butternut set up for the digital portion of each of the bands. The wire antenna
/archives//html/TenTec/2002-09/msg00047.html (9,301 bytes)

147. Re: [TenTec] Even MORE on vertical antennas! (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Wed, 04 Sep 2002 08:22:24 -0500
SNIP Huh? Once a signal leaves, and is reflected it is not longer vertically or horizontally polarized .... speaking at HF. Line of sight, may be different ... but what you are saying makes little or
/archives//html/TenTec/2002-09/msg00086.html (9,331 bytes)

148. Re: [TenTec] This is getting boring (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Wed, 04 Sep 2002 08:46:29 -0500
SNIP Amen and Amen. Doesn't this belong on the antenna reflectors? What exactly does it have to do with TenTec anyway? It's amazing how we on this reflector can just beat a dead horse to a pulp! Anyo
/archives//html/TenTec/2002-09/msg00088.html (9,146 bytes)

149. Re: [TenTec] Paragon VFO Problem (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Tue, 27 Aug 2002 10:17:00 -0500
In a former job, I had a standby diesel generator fail to start. I called the service company out to take a look at it. The tech needed to verify that the fuel pump was bad based on his analysis. So.
/archives//html/TenTec/2002-08/msg00538.html (9,446 bytes)

150. Re: [TenTec] E Mail (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Tue, 07 May 2002 07:40:43 -0500
Kind of like "write only memory".....never thought there would be a need for it! Looking forward to your comments. 73, Jim, wd4air Folks, Can you adjust me so I do not receive the e-mail, but can mak
/archives//html/TenTec/2002-05/msg00108.html (8,074 bytes)

151. Re: [TenTec] ARRL reviews (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Wed, 10 Apr 2002 20:54:37 -0500
Isn't this the easy way out? Just maybe some wise leadership is needed to show the mindless masses the error of their ways. This reminds me of a two meter repeater whose long time users would just ke
/archives//html/TenTec/2002-04/msg00335.html (10,260 bytes)

152. Re: [TenTec] OMNI VI Transmit IMD (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Thu, 18 Apr 2002 07:28:53 -0500
snip Geesh, it sounds like we are tying to get -80dB IM3 performance. That simply isn't the case! A zero-bias class-C amplifier can do almost as well as some modern radios for IM3 performance. Is it
/archives//html/TenTec/2002-04/msg00547.html (9,496 bytes)

153. Re: [TenTec] KB7OEX: a big plus favoring ORION (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Wed, 13 Mar 2002 08:04:34 -0600
snip Why would you even want to try and network an array a disparate microprocessors in a radio? I'm not sure if I can fully follow the logic of using 5 or 6 processors in a ham rig anyhow? What coul
/archives//html/TenTec/2002-03/msg00548.html (9,829 bytes)

154. Re: [TenTec] Type of Speech Processing in Jupiter/Pegasus? (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Sat, 23 Feb 2002 09:59:34 -0600
Soft compressors and clippers have been used for years and are effective for FM and AM modes, but can have limited effectiveness for SSB. The problem is that if the processing is made aggressive enou
/archives//html/TenTec/2002-02/msg00375.html (9,963 bytes)

155. Re: [TenTec] Ten-Tec External Speaker (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Mon, 21 Jan 2002 16:01:33 -0600
Speaker debate: I stirred the mud first so I'll stir it some more. Slosh! Typically speakers with large magnets are more efficient, i.e. possess greater sensitivity, than ones with small magnets. Thi
/archives//html/TenTec/2002-01/msg00264.html (9,642 bytes)

156. Re: [TenTec] Ten-Tec External Speaker (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Tue, 22 Jan 2002 08:26:04 -0600
Sounds logical to me. Thanks for a short simple lucid explanation. 73, Jim, wd4air From: "Dr. Gerald N. Johnson, electrical engineer" <geraldj@isunet.net> Reply-To: geraldj@isunet.net To: James Duffe
/archives//html/TenTec/2002-01/msg00295.html (8,832 bytes)

157. Re: [TenTec] Simultaneous Keying Question (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Mon, 03 Sep 2001 09:24:10 -0500
Suggest you contact the ARRL, they haven been doing what you are attempting to do for years.....maybe you don't have to reinvent the wheel. Hopefully you will find a simple, cheap solution. 73, Jim,
/archives//html/TenTec/2001-09/msg00025.html (10,581 bytes)

158. Re: [TenTec] Operating Tentec 540/544 near big amps (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Thu, 13 Sep 2001 07:58:06 -0500
Hi Allan, Bought my TenTec 544 new back around 77 or 78. I have used it with a Dentron MLA 2500 with no difficulty. The telephone didn't fare as well! The 544 was my main rig until the late 80s when
/archives//html/TenTec/2001-09/msg00121.html (8,645 bytes)

159. Re: [TenTec] HF Band CW Praactice (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Wed, 29 Aug 2001 10:37:37 -0500
Why is all this on Ten Tec ? Because TEN-TEC radios are capable of receiving CW signals which is permitted on the amateur frequencies. All TEN-TEC radios are capable of transmitting CW provided the o
/archives//html/TenTec/2001-08/msg00184.html (11,560 bytes)

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