At 11/7/2022 03:33 AM, you wrote:
Well, I guess Yaesu's manuals need to be corrected/clarified then.
Menu #43 [WID.NAR] says:
Function: Reducing the MIC Gain (and Deviation).
I totally understand what you are saying, but best I can tell, setting this menu item to narrow does nothing to change the bandwidth of the radio's receiver, so it is not true narrow band. I only see a single IF filter in the schematic, unlike commercial radios where I've seen two.
There are two IF filters for the left (A) band, one for wide (5 kHz) FM & one for narrow (2.5 kHz): CF1002 & CF1003. The right (B) side only has one (CF1001).
Bob NO6B
