[TenTec] Hi Cut / Lo Cut - Orion

[Marijan Miletic, S56A]

YT1NT> If the first filter is 15 kHz wide, then almost half of the
7 MHz CW band passes through, gets amplified by ~17 dB
and reaches the second, mixer which is much weaker than the first one.

G3RFP made a real life RX analysis of 40 m in noisy EU environment and came
to IMD3 > +20 dBm result in QEX.
Narrower Orion first IF filter surely helps.  Lower VCO noise also...

73 de Mario, S56A, N1YU