Topband: Passive Receive Antenna Splitter

K4RO Kirk Pickering k4ro at
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.

Kirk K4RO

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.
> Thoughts?

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