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) <k...@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) > > _________________ > Topband Reflector Archives - http://www.contesting.com/_topband > _________________ Topband Reflector Archives - http://www.contesting.com/_topband
