Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TenTec\]\s+Centurion\s+and\s+AM\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TenTec\]\s+Centurion\s+and\s+AM\s*$/: 24 ]

Total 24 documents matching your query.

1. [TenTec] Centurion and AM (score: 1): Author: Timothy Johnston <timothy.f.johnston@gmail.com>; Date: Fri, 1 Aug 2014 18:40:28 -0400; Can the Centurion (422b) be used with AM mode? The manual does not mention it. 73 de Tj, K4TFJ ... _______________________________________________ TenTec mailing list TenTec@contesting.com http://lis; /archives//html/TenTec/2014-08/msg00011.html (6,832 bytes)
2. Re: [TenTec] Centurion and AM (score: 1): Author: Robert <rmcgraw@blomand.net>; Date: Fri, 1 Aug 2014 18:56:30 -0500; Yes. Run about 200 to 250 watts of carrier BUT tune it for max output with 100 watts of drive. Then switch to AM mode and adjust drive as necessary. Do not change amp tuning after switching to AM mod; /archives//html/TenTec/2014-08/msg00015.html (7,479 bytes)
3. Re: [TenTec] Centurion and AM (score: 1): Author: george fritkin via TenTec <tentec@contesting.com>; Date: Fri, 1 Aug 2014 17:28:03 -0700; 200 to 250 watts AM results in 800 to 1000 watts PEP at 100% modulation. Three 811 tubes can not handle that power. However if you are using low level AM from your xcvr you probably won't get 100%; /archives//html/TenTec/2014-08/msg00018.html (9,191 bytes)
4. Re: [TenTec] Centurion and AM (score: 1): Author: Kim Elmore <cw_de_n5op@sbcglobal.net>; Date: Fri, 01 Aug 2014 19:34:14 -0500; How about this: Tune the amp for its maximum clean PEP output at whatever drive level is needed. Switch to AM and adjust the carrier level to 1/4 of that output. Then operate happily. Kim N5OP On 8/1; /archives//html/TenTec/2014-08/msg00020.html (10,322 bytes)
5. Re: [TenTec] Centurion and AM (score: 1): Author: Barry N1EU <barry.n1eu@gmail.com>; Date: Sat, 2 Aug 2014 00:46:14 +0000; How about two 3-500Z's? 73, Barry N1EU _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec; /archives//html/TenTec/2014-08/msg00021.html (7,985 bytes)
6. Re: [TenTec] Centurion and AM (score: 1): Author: Timothy Johnston <timothy.f.johnston@gmail.com>; Date: Fri, 1 Aug 2014 20:59:00 -0400; I would be feeding it with 25w of AM from a TS-590. So.. exactly what would the safe procedure be? 73 de Tj, K4TFJ ... _______________________________________________ TenTec mailing list TenTec@conte; /archives//html/TenTec/2014-08/msg00024.html (9,418 bytes)
7. Re: [TenTec] Centurion and AM (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Fri, 1 Aug 2014 19:59:28 -0500; The Centurion runs a pair of 3-500's {not 811's} and is rated at 1200 watts PEP output. So 200 to 250 watts of carrier modulated 100% is 800 to 1000 watts PEP. Nothing wrong with this as I am one tha; /archives//html/TenTec/2014-08/msg00025.html (11,027 bytes)
8. Re: [TenTec] Centurion and AM (score: 1): Author: George Fritkin via TenTec <tentec@contesting.com>; Date: Fri, 1 Aug 2014 18:02:55 -0700; I am sorry, for some reason I was thinking Centaur!!!! The Centurion, I got it right this time, does it in a breeze. Looks like hot weather got me too. George, W6GF Sent from my iPad ________________; /archives//html/TenTec/2014-08/msg00026.html (11,826 bytes)
9. Re: [TenTec] Centurion and AM (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Fri, 1 Aug 2014 20:06:24 -0500; Most 100 watt PEP transceivers will reduce power to 25 watts of carrier for the AM mode. Amps like the Centurion have about 10 dB to 11 dB of gain thus 25 watts of drive will produce about 250 watts; /archives//html/TenTec/2014-08/msg00027.html (12,583 bytes)
10. Re: [TenTec] Centurion and AM (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Fri, 1 Aug 2014 20:19:31 -0500; Tune for maximum output with about 100 watts of carrier from the TS-590. CW mode, key down should do this. Be sure and keep the grid current and plate current at or below maximum rated values at all; /archives//html/TenTec/2014-08/msg00028.html (11,511 bytes)
11. Re: [TenTec] Centurion and AM (score: 1): Author: Kim Elmore <cw_de_n5op@sbcglobal.net>; Date: Fri, 1 Aug 2014 20:22:05 -0500; I didn't mean to imply that it should be tuned at a lower power level. I meant that it should be tuned to its max rated output (most will make more than this but may not be linear when they do) then; /archives//html/TenTec/2014-08/msg00029.html (14,136 bytes)
12. Re: [TenTec] Centurion and AM (score: 1): Author: bcarling@cfl.rr.com; Date: Fri, 01 Aug 2014 23:02:22 -0400; I tune my Centurion 422 with enough drive for 1 KW out. Then I feed it about 20 - 25 watts of carrier and start modulating. Currently using the OMNI VII. DON'T overdrive it! Keep an eye on the plates; /archives//html/TenTec/2014-08/msg00034.html (10,219 bytes)
13. Re: [TenTec] Centurion and AM (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Fri, 1 Aug 2014 23:28:53 -0500; Ever see a Continental AM Broadcast transmitter? In some of the models you will find the last stage to be a big linear amplifier. Of course those were used long ago when we weren't worried about heat; /archives//html/TenTec/2014-08/msg00036.html (12,210 bytes)
14. Re: [TenTec] Centurion and AM (score: 1): Author: Brian Carling <bcarling@cfl.rr.com>; Date: Sat, 2 Aug 2014 12:03:06 -0400; Yes they can. At least they did this morning in a FB QSO on 7293 KHz from FL to KY. Omni VII and a mighty 422 Centurion. Best regards - Bry Carling, AF4K _____________________________________________; /archives//html/TenTec/2014-08/msg00045.html (9,728 bytes)
15. Re: [TenTec] Centurion and AM (score: 1): Author: Wade Staggs <tvman1954@gmail.com>; Date: Sat, 2 Aug 2014 11:55:51 -0500; *I will try to explain AM Transmitting while using an Amplifier designed for SSB, as taught to me by my old Elmer((( SK. )))* * Since SSB only outputs power when you speak into the microphone. The SS; /archives//html/TenTec/2014-08/msg00046.html (11,980 bytes)
16. Re: [TenTec] Centurion and AM (score: 1): Author: k6jek <k6jek@comcast.net>; Date: Sat, 2 Aug 2014 11:50:49 -0700; Pretty good explanation, Wade. Go to AMfone.net to meet and talk with people who live and breathe AM and who might have a more nuanced view of things like PEP. The advice, though, is the same, divide; /archives//html/TenTec/2014-08/msg00048.html (13,036 bytes)
17. Re: [TenTec] Centurion and AM (score: 1): Author: bcarling@cfl.rr.com; Date: Sat, 02 Aug 2014 16:43:10 -0400; I have read this through twice and still can't figure out what the point is that you are making - sorry - my bad! I also have the two year AEET degree. Thanks to Georgia Tech. I haven't worked on ver; /archives//html/TenTec/2014-08/msg00049.html (13,183 bytes)
18. Re: [TenTec] Centurion and AM (score: 1): Author: Wade Staggs <tvman1954@gmail.com>; Date: Sat, 2 Aug 2014 16:09:27 -0500; *AM Receivers don't need much Carrier to properly Demodulate the signal. And here is a fact that most folks have not thought about. The Sound Sub-Carrier in the older TV Broadcast Transmitters was Fr; /archives//html/TenTec/2014-08/msg00050.html (15,422 bytes)
19. Re: [TenTec] Centurion and AM (score: 1): Author: Wade Staggs <tvman1954@gmail.com>; Date: Sat, 2 Aug 2014 16:28:25 -0500; *Many of the newer Shortwave transmitters produce very little Carrier. They have always placed a much smaller LSB signal on the air and really punch the USB side hard. Instead of using Modulation Tra; /archives//html/TenTec/2014-08/msg00051.html (15,448 bytes)
20. Re: [TenTec] Centurion and AM (score: 1): Author: Brian Carling <bcarling@cfl.rr.com>; Date: Sat, 2 Aug 2014 17:33:09 -0400; I understand the processes, old and new. The power bill is of no concern to ham like me who runs AM about 4 hours per month at 50% Duty cycle. Best regards - Bry Carling _____________________________; /archives//html/TenTec/2014-08/msg00052.html (15,962 bytes)

Current List: 1 - 20
Page: [1] [2]