- 1. [Amps] RE: Problems with Heath SB-220 (score: 1)
- Author: kapyd at juno.com (JULIO C ROSA)
- Date: Wed Jan 22 01:57:59 2003
- Hello Everybody! I want to thank everyone who kindly replied to my question as to how to connect the Heath SB-220 to my TS-930 and for the additional advise. I also want to thank Pete- N4ZR for sugge
- /archives//html/Amps/2003-01/msg00180.html (8,063 bytes)
- 2. [Amps] RE: Problems with Heath SB-220 (score: 1)
- Author: dhearn at ix.netcom.com (Dan)
- Date: Wed Jan 22 17:08:08 2003
- Hi Julio: A friend KD7OY just had exactly the same problem. We found that the relay contacts which short the amp T/R line were welded together.holding the amp in the xmit mode even when he switched t
- /archives//html/Amps/2003-01/msg00183.html (10,014 bytes)
- 3. [Amps] RE: Problems with Heath SB-220 (score: 1)
- Author: n4zr at contesting.com (Pete Smith)
- Date: Wed Jan 22 17:25:24 2003
- This is good advice -- there is such a signal and it leads the production of RF by a few milliseconds -- I forget the exact figure but K9MA told me about it. I use +12V to switch an FET that switches
- /archives//html/Amps/2003-01/msg00184.html (7,369 bytes)
- 4. [Amps] RE: Problems with Heath SB-220 (score: 1)
- Author: Kim.Elmore at noaa.gov (Kim Elmore)
- Date: Wed Jan 22 17:45:50 2003
- If I recall, it's pin 7 of the ACC plug, but it's in the manual, regardless. Kim Elmore, N5OP Kim Elmore, Ph.D. University of Oklahoma Cooperative Institute for Mesoscale Meteorological Studies "All
- /archives//html/Amps/2003-01/msg00185.html (8,287 bytes)
- 5. [Amps] RE: Problems with Heath SB-220 (score: 1)
- Author: G3SEK at ifwtech.co.uk (Ian White, G3SEK)
- Date: Thu Jan 23 04:12:55 2003
- Agreed... but so far we have been focusing on switching capacity. The other issue is the effect on T/R timing and RF arcing in the amp's antenna relay. The open-frame relays on most older amps are to
- /archives//html/Amps/2003-01/msg00187.html (9,609 bytes)
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