[INRAD] Modified zft-980 Yaesu

[Charlie Mazoch Jr.]

I listened around on 75 meters tonight and the old rig sure performs 
great since the 1st IF roofing filter and 2nd IF cascade filter 
modifications. I listened to QSO's on 3855, 3857.5, 3860 and 3862 Khz 
and could copy all the stations. I can't imagine getting much closer in 
frequency and still pick out intelligent speech. Switching in the 
cascade filters with the 2.1 Khz INRAD eliminates everything outside 
it's pass band and the audio still sounds good. The roofing filter cuts 
down on the extraneous mixing products allowing the rigs AGC to function 
well in crowded conditions. Well done George!  73's  Charlie  W5VIN