[Yaesu] Yaesu FT991 question

[Dr. Gerald N. Johnson]

You might be able to find the Technical Supplement on the Yaesu web site 
or mods.dk. The advertisements I've seen claim the first IF of something 
like 69.45 MHz is for all bands. That's where I'd expect the roofing 
filter to be. It will have to be wider for FM and AM. Page 1 of the OM 
from Yaesu says there are two choices for the roofing filter 3 and 15 
kHz. The wide one would be needed for VHF and UHF FM. I didn't find the 
TS on either site.

On page 44 of the OM, it says the roofing filter is chosen by the mode 
and at the bottom of the page a block diagram shows the roofing filter 
is used on HF, VHF, and UHF.

73, Jerry, K0CQ

On 5/7/2016 9:17 PM, John Geiger wrote:
> Here is something that I can't find the answer to in either the Yaesu
> manual, or the ARRL product review.  Does the 3khz roofing filter also work
> on 2m and 70cm?
>
> 73 John AF5CC
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