[Yaesu] FT1000 vs FT1000MP filters

[Dr. Gerald N. Johnson]

I don't have easy access to the shop manuals or the operator's manual 
for either radio, but I would check the parts list part number for the 
two filters. It could be that Yaesu changed the filter ID nomenclature 
without changing the filter or changed sources of filters and so have 
different IDs. But if they stick with the two nomenclatures, that won't 
help much. Then maybe the specs on bandpass and the circuit impedances 
from the diagrams might hint at similarity or difference. Inrad is good 
about averaging or improving on radio maker's specs for their 
replacement filters.

I've not been pleased with CW filters that narrow, some have put out a 
tone just from noise excitation and that wore me out copying CW during 
FD once, I only lasted about 4 hours until I was fatigued. I prefer 500 
Hz or wider.

73, Jerry, K0CQ

On 3/7/2016 11:32 AM, John Geiger wrote:
> Can anyone on the list confirm whether the filters for the FT1000(D) will
> also work in the FT1000MP series even though they are labelled differently.
>
> For example, the 250hz CW filter for the FT1000MP is called the XF-114CN,
> whereas the 250hz CW filter for the FT1000 is called the XF-8.2M-251-01.
>
> INRAD lists the same model number of their filters for both radios, which
> makes them sound like they are interchangable.
>
> 73 John AF5CC
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