[TowerTalk] Crossover Transfer Relay

[jimlux]

W5KI at aol.com wrote:
> 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],  good to 1 Ghz.)
>  
> Steve, W5KI
> 

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 also an HP ap note, AN332, which I don't think is online, which 
is a good summary of all sorts of rf switching. I see it's not marked 
with a copyright, so maybe I can put it online. I'll write to Agilent 
and ask.



Jim, W6RMK


BTW
http://www.hpmemory.org/ressources/resrc_an_01.htm is a useful resource 
in general