[Yaesu] FT-990 filters

[contest at roemming.dk]

I can recommend http://www.qth.com/inrad/YAE_MENU.htm I have a FT-1000MP Mark-V 
with 250 Hz CW filters.

On my Mark-V I only press the narrow II button an then the filter is working. I 
can also choose the narrow I button which is the 500 Hz filter.

I hope this can help you with some of your questions.

73 Jørgen, OZ0J

> I just bought a second hand FT990 AC. It came with buillt in 500 Hz 
> (10.9MHz) CW filter. This one has been described as a "CW-wide" filter 
> in the manuals book. There is also place for optional "CW-narrow" 
> filter, the book reffers to 455 kHz 250 Hz filter which, by my 
> understanding is activated by pressing "250" button on the front panel 
> of the radio.
> 
> Since this one is somewhat too narrow for my taste i'm thinking of 
> putting another 500Hz,(this being 455 kHz one) in that slot.
> 
> The question is how this one will be activated ? Will it be activated 
> together with the other 500 Hz filter (10.9 MHz one) by pressing 500 
> button or just as the 250 Hz(455 would be activated, by pressing 250 
> button ?
> 
> Also, are there any 350 Hz (455) filters available as this would be 
> ideal bandwidth for me ?
> 
> Any help will be appreciated.
> 
> 73 Mike
> 
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