[amsat-bb] HFSAT Duplexer design welcome

[Robert Bruninga]

HFSAT Duplexer design welcome,



If anyone wants to take a shot at designing an HF Duplexer so that the
single 29 MHz dipole can also be shared with the 21 MHz uplink, here is the
schematic (maybe):  http://aprs.org/hfsat/HF-duplexer-a.png



It is my guess at how to build a trap and pass band on each side of the
duplexer.  But then I am not an RF designer at that level.



The overall web page for HFSAT is: http://aprs.org/hfsat.html



Bob, WB4APR