Hi Larry
If/when you get this going, I too would be interested in this. All my
antenna switching is now done via remote coax switches, and I have a bunch
of remote controls by my operating position that I would like to
eliminate. My thinking is - use the band data from the radio or computer
to drive an SBC, and let it select the correct antennas. I will also need
a four port controller of some sort that I would also see typing into the
SBC. I have several antennas per band - this input would allow me to
select the appropriate antenna in a "one of four". Some form on on-screen
notification would also be helpful to let me know which antenna I have
selected.
Tom - VE3CX
On Wed, Nov 5, 2014 at 7:19 AM, Larry Gauthier (K8UT) <K8UT@charter.net>
wrote:
> A few weeks ago there was a helpful, spirited discussion of antenna relays
> here on the reflector. Can we extend that conversation to pre-built relay
> assemblies?
>
> As background: I have recently become involved in writing software for
> these new SBCs (single board computers) like the Arduino and Raspberry Pi.
> My latest project is a band decoder - a UDP-based CAT decoder that
> interprets rig-to-logging-program frequency traffic and selects relays to
> drive my remote antenna switches. The band decoder collects UDP CAT data
> via wi-fi, which means that it could be anywhere within wi-fi range -
> including outdoors at the location of the remote antenna switches. Hmmm...
> what if the Band Decoder and Remote Antenna Switches were consolidated and
> the Raspberry Pi were to directly drive the antenna selection? Then the
> question becomes whether these relay assemblies are capable of handling 1
> KW RF.
>
> These relays assemblies are: inexpensive, SPDT, opto-isolated from the
> CPU, include reverse diode protection on the coils, rated for 220VAC at 10
> amps, and the PCBs have been notched to physically isolate the relay common
> from the two outputs (hard to see that from the photos).
>
> http://www.amazon.com/gp/product/B0057OC5WK
>
> Will these work? How would I test them?
>
> -larry (K8UT)
>
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