KM5Q wrote:
For AM SW listening be sure to get the "FM" filter (13 kHz). It gives
you the width you need for the audio bandwidth you expect. The normal
SSB filter (I have the 2.8) is too restricting for AM.
However, I find that switching mode from AM to SSB reduces severe
fading and distortion, much like AM synchronous detection does (fills
in the missing carrier). It's a good technique, at least until synch
detection is implemented in the firmware.
Windy,
Also note that our 6-kHz 8-pole filter is targeted specifically at AM
operation, and will provide better adjacent-channel QRM rejection than
the FM filter, if needed. A 6-kHz filter is also required for AM
transmit (enforced in firmware). This ensures excellent 2nd-I.F. image
rejection.
73,
Wayne
N6KR
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