Total posts : 45366
RFB wrote: But for a common 15.219 system which has no coax..it would have to be installed between the TX output and loading coil input.
Don’t some Part 15 AM transmitters already include a gas discharge, transient protection device just upstream of their r-f output connector, and after their internal loading coil?
Just curious. then, as to why RFB suggests that an outboard device such as the “polyphaser” installed downstream of that connector is a great choice.