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1. [TenTec] Omni 546-C SSB TX issue (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Tue, 2 Sep 2008 21:55:32 +0000; I am looking for some input into solving a (potential) problem that I have with my Omni-C. history: I obtained this transceiver some months ago and it had been sitting in a box for 28 years. Cosmetic; /archives//html/TenTec/2008-09/msg00010.html (8,971 bytes)
2. Re: [TenTec] Omni 546-C SSB TX issue (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Wed, 3 Sep 2008 13:37:26 +0000; Ken my bad - the SSB is garbled. CW is fine. Marinus _________________________________________________________________ Connect to the next generation of MSN Messenger http://imagine-msn.com/messenge; /archives//html/TenTec/2008-09/msg00022.html (7,536 bytes)
3. [TenTec] OT: two tone generator (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Thu, 4 Sep 2008 13:45:34 +0000; In my quest for sorting out my garbled SSB I looked at purchasing a two-tone generator. However in my computer I have a sound card so why not put that to some use? I have found a product that has a 3; /archives//html/TenTec/2008-09/msg00028.html (7,549 bytes)
4. Re: [TenTec] Omni VI frequency error - problem solved (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Fri, 5 Sep 2008 12:16:33 +0000; Steve What about the 10.000 Mhz reference standard? My Omni C receives that frequency and you can use it to zero beat. 73, Marinus, ZL2ML _____________________________________________________________; /archives//html/TenTec/2008-09/msg00047.html (7,383 bytes)
5. [TenTec] OT: two tone generation for SSB fault detection (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Tue, 9 Sep 2008 02:54:47 +0000; I mentioned in an earlier posting in how to generate two tone on the cheap by using the computer and DSSF software. However I am not thrilled in attaching my expensive laptop to a rig, escpecially wh; /archives//html/TenTec/2008-09/msg00105.html (7,849 bytes)
6. [TenTec] pilot light bulbs (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Mon, 4 Aug 2008 06:17:07 +0800; I am looking at replacing the light sin the 228 ATU, 280 Power Supply and the Omni 546-C with LED equivalents. I see that the follwing firm supplies these in individual lots: http://www.superbrightle; /archives//html/TenTec/2008-08/msg00030.html (8,959 bytes)
7. [TenTec] OT: a neat way to make a rotatable dipole (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Tue, 5 Aug 2008 16:28:35 +0800; I think I just came across a neat way to make a rotatable dipole without using an insulator in the middle or splitting the dipole there. means there is no weakening the dipole in the centre which has; /archives//html/TenTec/2008-08/msg00054.html (8,101 bytes)
8. Re: [TenTec] OT SWR VS Power Loss (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Mon, 7 Jul 2008 02:14:57 +0800; There is a major difference if you are using a short antenna with low radiation impedance. 90 % or more of the output can get lost in the coax when it is in that situation longer than a couple of fee; /archives//html/TenTec/2008-07/msg00082.html (9,065 bytes)
9. Re: [TenTec] OT SWR VS Power Loss (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Mon, 7 Jul 2008 09:32:58 +0800; One item I forgot to mention is that if your SWR is not 1:1 on the coax then the coax is not matched which results in the coax starting to radiate RF and picking up RF. The latter can dramatically in; /archives//html/TenTec/2008-07/msg00093.html (10,265 bytes)
10. [TenTec] Omni 546C driver biasing (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Mon, 7 Jul 2008 11:14:57 +0800; Finally after a long wait new finals arrived: MRF 454 (Macom) replacing blown MRF 458. I already had received new drivers, the MRF 476 (RFG). When I was measuring what was wrong I measured a driver b; /archives//html/TenTec/2008-07/msg00098.html (8,753 bytes)
11. [TenTec] OT: SWR & Coax (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Mon, 7 Jul 2008 15:39:13 +0800; When Coax is terminated at the transmitter end and the far end with an impedance that is equal to its defined impedance we will have a SWR of 1:1. Only when the currents on inner conductor and on shi; /archives//html/TenTec/2008-07/msg00103.html (8,787 bytes)
12. [TenTec] OT: Selection of ferrite material (was SWR and Coax) (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Mon, 7 Jul 2008 18:18:38 +0800; First of all thanks to all about rectifying my misconception on SWR and radiating coax. My rig is working again but not much to work tonight on 7 Mhz so am up to some more internet investigations. (m; /archives//html/TenTec/2008-07/msg00109.html (8,325 bytes)
13. [TenTec] Bliss: Omni 546C working FB again (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Wed, 9 Jul 2008 12:26:37 +0800; Finally got the Omni 546-C working like it would have when it came out of the factory. Replaced the new drivers (that had trouble getting a low bias) with the ones I took out and bias adjusted FB. Th; /archives//html/TenTec/2008-07/msg00200.html (9,455 bytes)
14. Re: [TenTec] CW weighting (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Mon, 14 Jul 2008 06:17:57 +0800; What a lot of folks do not realise is that with modern DSP processing the CW get's "muddled" and characters get shortened. This is especially noticeable if you are using an external DSP processor, th; /archives//html/TenTec/2008-07/msg00288.html (7,651 bytes)
15. Re: [TenTec] OT Antenna Tuners (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Sun, 20 Jul 2008 08:35:18 +0800; If I may just throw my humble opinion / experiences in here. I use less that 100 Watts so it may not apply to some of the big gun setups. For a balanced feed I prefer very much the S-Match from PA0FR; /archives//html/TenTec/2008-07/msg00333.html (11,055 bytes)
16. Re: [TenTec] OT Antenna Tuners (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Tue, 22 Jul 2008 14:48:32 +0800; I have not been following the thread closely. However I disagree with the statement that the input unun is "just" a transformer. It is important that is understood that this is an unun where there is; /archives//html/TenTec/2008-07/msg00344.html (10,573 bytes)
17. Re: [TenTec] OT Antenna Tuners (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Thu, 24 Jul 2008 03:56:34 +0800; Thank you for correcting the misunderstandings and the information on the toroid material. 73, Marinus, ZL2ML - when I did the replacement of all the byspass capacitors certain boards did not need to; /archives//html/TenTec/2008-07/msg00350.html (10,935 bytes)
18. Re: [TenTec] OT Static Discharge (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Thu, 24 Jul 2008 12:02:38 +0800; You'll find that just unplugging the antenna's is only partly protective. Sometimes ligning just appears out of the blue, in any case you may not have heard the first few lightnings until it is close; /archives//html/TenTec/2008-07/msg00355.html (8,347 bytes)
19. Re: [TenTec] OT Antenna Tuners (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Fri, 25 Jul 2008 18:14:02 +0800; The TenTec design is OK but it would requrie an extra switch and if really getting down to the nitty gritty it is no longer a pure L-match. There was an article in the ARRL Antenna compendium vol 3 t; /archives//html/TenTec/2008-07/msg00361.html (10,215 bytes)
20. Re: [TenTec] (no subject) (score: 1): Author: Marinus Loewensteijn <zl2ml@hotmail.com>; Date: Mon, 2 Jun 2008 06:13:31 +0800; Lee, Higher powered audio amplifiers have a time delayed relay switching the speakers after the amplifier has switched on. When powered down the relay drops out before the speakers give a pop as well; /archives//html/TenTec/2008-06/msg00025.html (8,372 bytes)

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