llindblom@juno.com wrote:
> In my Icom 775 I currently have Icom 500 Hz filters in the 455 KHz and 9 MHz
> IFs. I have a chance to pick up an Inrad 250 Hz filter for the 455 KHz IF at
> a reasonable price. My question is has anyone used this Inrad filter (Inrad
> # 122) on RTTY and if so your opinion please.
>
> TU & 73
> W0ETC
>
>
>
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I think it is too narrow bandwith for rtty ( with 170 Hz
shift and 45 Bd). There is a good estimation of filter
bandwith in :
http://lists.contesting.com/_rtty/2001-September/000845.html
Of course, it is for rtty 23, please change shift for 170 Hz.
kazik
sp6axw
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