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Total 4 documents matching your query.

1. Re: [TowerTalk] Crossover Transfer Relay (score: 1): Author: W5KI@aol.com; Date: Sat, 14 Mar 2009 16:21:05 EDT; Jim, Agree. And thanks for your later comments about failure of one of the ABSS. Something I didn't consider for Ken, since I use a single transfer switch here (the 300-11002-2 you mentioned [below],; /archives//html/Towertalk/2009-03/msg00357.html (7,951 bytes)
2. Re: [TowerTalk] Crossover Transfer Relay (score: 1): Author: jimlux <jimlux@earthlink.net>; Date: Sat, 14 Mar 2009 15:30:12 -0700; The recent reference to KK1L's switch is interesting. He uses 3 SPDT relays per "antenna port", which makes it fail safe, at least as far as not connecting two radios together accidentally. There's a; /archives//html/Towertalk/2009-03/msg00360.html (7,882 bytes)
3. Re: [TowerTalk] Crossover Transfer Relay (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Sat, 14 Mar 2009 21:02:13 -0400; The KK1L "three relay" configuration is a copy of the switching configuration used since the very beginning in the microHAM Double Six and Double Ten Switches. See the basic information at: www.micro; /archives//html/Towertalk/2009-03/msg00368.html (10,652 bytes)
4. Re: [TowerTalk] Crossover Transfer Relay (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Sat, 14 Mar 2009 21:49:41 -0400; I'm not sure of this particular circuit, but it only takes a pair of DPDT relays to make an antenna A/B selector fail safe. The coil for each relay in the pair is fed through the normally closed cont; /archives//html/Towertalk/2009-03/msg00371.html (8,982 bytes)

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