Topband: RX and TX remote direction switch

Lee STRAHAN k7tjr at msn.com
Tue Feb 26 23:29:14 EST 2019


  I used to use rotary switches also but once I developed the coax switches for Hi-Z that have 80 dB of cross port isolation. I would never go back to using a switch or single relay with a typical cross channel isolation from their on/off ratio being only 40 dB or so. This is especially important when you are using receiving antennas with very high RDF and front to side/back ratio.
 Lee  K7TJR   OR



> This is used to replace a traditional manual rotary or push button 
> direction switch.  Although a system something like this is required to control antennas at a remote QTH, it can be useful at 73, de steve ve6wz.
> _________________

I used to have 6  Beverages at 60 degree Azimuth intervals.
I originally used a rotary switch, then I went to a system like VE6WZ.  Once I used it, I would never consider a rotary switch.

Rick N6RK
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