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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+RF\s+sensing\s*$/: 7 ]

Total 7 documents matching your query.

1. [AMPS] RF sensing (score: 1)
Author: billydeanward@hotmail.com (Billy Ward)
Date: Fri, 10 Aug 2001 18:08:45 +0000
I am more than a little surprised at your answer. The RF does NOT appear at the amplifier any SOONER using RF switching than it does using DC switching. The timing problem will be identical with eith
/archives//html/Amps/2001-08/msg00122.html (8,940 bytes)

2. [AMPS] RF sensing (score: 1)
Author: 2@vc.net (2)
Date: Fri, 10 Aug 2001 12:14:19 -0700
// 'Exactamente', and therein lies the problem. With RF switching. the amplifier's RF relays can not begin transitioning until RF is present. This is not good news. However, with transceiver-control
/archives//html/Amps/2001-08/msg00124.html (10,135 bytes)

3. [AMPS] RF sensing (score: 1)
Author: W3GCG@aol.com (W3GCG@aol.com)
Date: Fri, 10 Aug 2001 18:35:04 EDT
--part1_3a.1906ca73.28a5bb98_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit What is your Ham call, Billy Dean Ward?? --part1_3a.1906ca73.28a5bb98_boundary Conte
/archives//html/Amps/2001-08/msg00126.html (7,299 bytes)

4. [AMPS] RF sensing (score: 1)
Author: Peter.Chadwick@zarlink.com (Peter Chadwick)
Date: Mon, 13 Aug 2001 11:26:03 +0100
RF is What about the situation where switching is done by PIN diodes? There must be a finite time during which the transceiver and/or amp see a high VSWR, but this could well be short enough that it
/archives//html/Amps/2001-08/msg00133.html (8,126 bytes)

5. [AMPS] RF sensing (score: 1)
Author: 2@vc.net (2)
Date: Mon, 13 Aug 2001 07:24:22 -0700
until a // No transceiver that am aware of puts out RF After the T/R-transition starts. Thus, hotswitching on break is not possible. The problem with a slow relay break time is that the relay may no
/archives//html/Amps/2001-08/msg00134.html (9,361 bytes)

6. [AMPS] RF sensing (score: 1)
Author: Peter.Chadwick@zarlink.com (Peter Chadwick)
Date: Mon, 13 Aug 2001 16:02:23 +0100
My thoughts, too. I discussed this sometime back with George, W2VJN, and he had his reservations. Depending on the volts you are switching, an opto isolator can be a convenient level shift/isolation
/archives//html/Amps/2001-08/msg00135.html (7,893 bytes)

7. [AMPS] RF sensing (score: 1)
Author: 2@vc.net (2)
Date: Mon, 13 Aug 2001 11:22:28 -0700
// True, but converting an amp's relay PS from non-standard negative to standard positive polarity is a piece o' cake. . discharges. things than // I've heard of lighting jumping 8-feet inside a rad
/archives//html/Amps/2001-08/msg00136.html (8,345 bytes)


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