- 101. [TenTec] Blocking Dynamic Range (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer)
- Date: Fri, 25 Aug 2000 10:22:53 -0500
- Any receiver with a wide roofing filter will have poorer blocking range close in. Though the ARRL tests at 20 KHz to be outside that wide roofing filter for most radios. A narrow roofing filter preve
- /archives//html/TenTec/2000-08/msg00201.html (7,874 bytes)
- 102. [TenTec] 705 vox/ptt switch: What does it do? (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer)
- Date: Thu, 31 Aug 2000 22:20:13 -0500
- I'd guess it connects the microphone to the wire in the VOX position and lets the PTT switch do it only when pushed in the PTT position. Cuts down on feedback in the PTT position. 73, Jerry, K0CQ --
- /archives//html/TenTec/2000-08/msg00264.html (6,408 bytes)
- 103. [TenTec] External Filters (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Sat, 08 Jul 2000 22:58:02 -0500
- Experience in these parts, by the picky operators indicates that the Timewave DSP series outperforms the MFJ and RS. I have a DSP-59+ and it has quite good selectivity, is extremely versatile, handle
- /archives//html/TenTec/2000-07/msg00061.html (7,809 bytes)
- 104. [TenTec] OMNI VI <bleeping> CW note (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Tue, 11 Jul 2000 10:13:36 -0500
- Sounds fine on my Corsair II no matter how I try to tune it to be critical. Could it be that there's just a tiny microchirp on the edge of the filter that when you tune to the edge of a receiving Omn
- /archives//html/TenTec/2000-07/msg00087.html (8,156 bytes)
- 105. [TenTec] OMNI VI <bleeping> CW note (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Tue, 11 Jul 2000 11:57:45 -0500
- My Corsair II listens to CW on 20m on USB (Properly). I don't hear anything to complain about. Same filters as an OMNI VI. The tea pot is too small for there to be a tempest! 73, Jerry, K0CQ -- FAQ o
- /archives//html/TenTec/2000-07/msg00092.html (7,694 bytes)
- 106. [TenTec] OMNI VI <bleeping> CW note (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Tue, 11 Jul 2000 12:06:52 -0500
- <396B39A0.7076@ames.net> <018e01bfeb62$c2d31900$88598118@se.mediaone.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-tentec@contesting.com Precedence: bu
- /archives//html/TenTec/2000-07/msg00093.html (8,020 bytes)
- 107. [TenTec] capacitors needed (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Sun, 16 Jul 2000 20:43:50 -0500
- Mouser (www.mouser.com) has those parts, and no minimum order. Brown trucks or the US mail find the hinterlands. Hosfelt in Ohio (800-524-6464) shows 18 pf for 4 cents each in disk ceramic, 15 pf 50
- /archives//html/TenTec/2000-07/msg00131.html (7,212 bytes)
- 108. [TenTec] offsett (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Wed, 19 Jul 2000 11:17:23 -0500
- We use offset tuning to correct for differences in how others in a QSO tune SSB or CW. Once a QSO has begun if each uses the main tuning to correct the other's tuning the QSO will move across the ban
- /archives//html/TenTec/2000-07/msg00153.html (7,273 bytes)
- 109. [TenTec] offsett (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Wed, 19 Jul 2000 20:58:04 -0500
- But if all stations start by matching as closely as their ears allow with the main knob and then only tweak the offset or RIT after that the only things causing spread will be drift, not excess opera
- /archives//html/TenTec/2000-07/msg00160.html (7,040 bytes)
- 110. [TenTec] RX 320 and Corsair II (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Thu, 20 Jul 2000 22:19:50 -0500
- But general coverage receivers don't reject strong none hamband signals as well. 73, Jerry, K0CQ -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions: tentec@contesting.com Administrative
- /archives//html/TenTec/2000-07/msg00170.html (7,652 bytes)
- 111. [TenTec] Corsair II vs. Digital Trition 544 (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Sat, 22 Jul 2000 16:25:02 -0500
- I've never heard any Triton or Omni A, D, or C owner complain about performance. Though by my circuit analysis, I think the Corsair II is a superior receiver with better dynamic range, especially for
- /archives//html/TenTec/2000-07/msg00202.html (11,824 bytes)
- 112. [TenTec] Corsair II vs. Digital Trition 544 (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Sat, 22 Jul 2000 20:33:57 -0500
- handling really strong unwanted signals. One other problem is that the Omni V and VI shift to LSB on 10m for CW. When working mixed CW and SSB with a transverter on 6m and up, shifting sidebands whe
- /archives//html/TenTec/2000-07/msg00218.html (8,517 bytes)
- 113. [TenTec] Corsair II vs. Digital Trition 544 (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Sat, 22 Jul 2000 20:34:20 -0500
- I don't have good data to compare Corsair 1 to II though I've heard that the receiver circuits are essentially the same. Major differences are panel paint color and the fact that the 1 has band switc
- /archives//html/TenTec/2000-07/msg00219.html (8,088 bytes)
- 114. [TenTec] What kind of wire antenna to use?? (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Tue, 13 Jun 2000 21:54:40 -0500
- Run as much wire as you can conveniently feed in the middle. Anything from 100 feet overall up to 326 feet overall (a double extended Zepp for 80 meters). 31 feet high is better for regional contacts
- /archives//html/TenTec/2000-06/msg00098.html (8,799 bytes)
- 115. [TenTec] T-T Receiver Lineage (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Mon, 01 May 2000 08:56:22 -0500
- I don't consider the Omni V/VI in the same class as the Corsairs. Best I can detect, the early Omni (A,D,C) used a double gate mosfet as RF stage. This can have usable dynamic range but not the best.
- /archives//html/TenTec/2000-05/msg00010.html (8,847 bytes)
- 116. [TenTec] Ten Tec Performance - and more (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Wed, 03 May 2000 16:07:07 -0500
- The Yeawoodcom fall apart within that 20 KHz filter because everything that passes through it gets to the second mixer that's not as tough (and with more gain) as the first mixer. Look at the DUBUS r
- /archives//html/TenTec/2000-05/msg00082.html (9,517 bytes)
- 117. [TenTec] Omni Six Monitor Scope Modification (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Fri, 19 May 2000 12:48:28 -0500
- Its hardly worth the bother taking IF output after the filter for scope monitoring. The filter cleans up most of the ills created in transmitters from clipping distortion to clicks on keying. At best
- /archives//html/TenTec/2000-05/msg00274.html (7,515 bytes)
- 118. [TenTec] paragon receiving problems (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Sat, 20 May 2000 18:43:50 -0500
- I find Caig Deoxit works wonders on connectors, card edges, and relay contacts. 73, Jerry, K0CQ -- FAQ on WWW: http://www.contesting.com/tentecfaq.htm Submissions: tentec@contesting.com Administrativ
- /archives//html/TenTec/2000-05/msg00283.html (7,058 bytes)
- 119. [TenTec] Re: Ten Tec antenna tuners (ladderline lore) (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Mon, 03 Apr 2000 10:53:46 -0500
- Twisting breaks up the air foil and cuts the lifting coefficients. But increases the direct wind load. I've changed from flat twin lead to real open wire (18 gauge copperweld on 1" centers) because o
- /archives//html/TenTec/2000-04/msg00041.html (7,559 bytes)
- 120. [TenTec] Pegasus, old and young dudes (score: 1)
- Author: geraldj@ames.net (Dr. Gerald N. Johnson)
- Date: Mon, 03 Apr 2000 10:53:53 -0500
- Generally when strong signals are close by in frequency, the noise blanker is the worst possible enemy of rejection. E.g. it makes strong signals sound like they are tens of kHz wide. Turn OFF the no
- /archives//html/TenTec/2000-04/msg00042.html (7,592 bytes)
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