Eric wrote:
>
> You should be able to get by with 1-2 mA at 13 Vdc.
>
> -- Eric K3NA
Eric, and others,
This is what I suspect. However, the app note at Potter and Blumfield (Tyco)
website indicated that "fine silver" contacts needed 400ma minimum. Yet the
"Silver Alloy" relays they offer have a minimum contact current of 100ma.
In any antenna project, getting DC to flow in the relay can be somewhat of a
trick. When used to connect a simple dipole, you need to use a transformer
wired as an isolation transformer. Ditto for a vertical. Decoupling the RF to
allow injection of DC of any level requires numerous RF Chokes, a bias T, etc.
So the complexity gets awkward very quickly.
I clearly like the 1-2ma and will likely attempt to use a current level that
can be consumed with a simple load, like a 1/2W resistor.
Thanks for the input
Ford-N0FP
ford@cmgate.com
_______________________________________________
Topband mailing list
Topband@contesting.com
http://lists.contesting.com/mailman/listinfo/topband
|