Topband: Passive Receive Antenna Splitter
K4RO Kirk Pickering
k4ro at k4ro.net
Thu Mar 13 21:27:55 EDT 2014
I've used a video selector box (for 75 ohm RF, with F connectors) that
Radio Shack used to sell. It was a 4-in 2-out matrix, and allowed either
of two radios to have any of the 4 available antennas. It also allowed
two radios to share an antenna simultaneously. I doubt R/S still sells
it, but there might be something available from MCM or the like.
On 3/13/2014 8:13 PM, Gary K9GS wrote:
> Can anyone point me to a design for a splitter for sharing a Beverage
> antenna between two receivers? This is for Field Day so these are not
> optimized Beverages by any means.
> Just want to allow the 80/40M stations to share antennas. Nothing fancy.
> My thoughts are to just use a CATV "2-Way" splitter at the output of the
> Beverage matching transformer and run separate feed-lines to each radio.
> I'm pretty sure these things work down to 1 MHz but have not measured
> them. I can use the pre-amp in the radio (K3) to compensate for the loss.
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