ØContester needs best receiver possible, especially for CW operation
ØTen-Tec Orion design is a step in a new direction. It
has taken over 25 years for
my concept of using roofing filters
with a bandwidth similar to the final selectivity to be incorporated into an OEM rig.
Ø25 years of up conversion radios have generally offered a 20 kHz dynamic range in the 90s but a 2 kHz close-in dynamic range in the 70s. Typical degradation of dynamic range within the up conversion filter bandwidth is 25 dB.