[RTTY] Kenwood IF filters ???

Tom Osborne w7why at verizon.net
Thu Feb 18 19:52:26 PST 2010


I also use 250 cycle filters here in my TS-450's.  I like them for RTTY 
contesting.  Seems like 500 is too wide for my comfort level.  73
Tom W7WHY




I only use 250 Hz filters in both IFs.  Both in my analog rigs and in my
Icom 7600.

73
Jim W7RY


> Hmmmm ???  Okay.  I am using MMTTY.  WPX last week was my first contest. 
> I
> wasn't aware MMTTY did filtering.  My TS-450s has the stock filters for 
> SSB:
>  6khz in the 8.83mhz passband an 2.4khz in 455khz IF.  Obviously those
> filters are frustrating for RTTY.
>
> Show of hands please from users with TS-850s & TS-450s - 2 x 400hz filters
> for both IF stages, or 2 x 250hz filters in both.  Is my logic correct?
>  RTTY signals are "supposed" to be 170hz wide, so a 250hz filter would be
> optimal......yes/no.......(circle one hihi)
>
> Al (KE1FO) - why did you find the narrow filters frustrating?  Can you
> comment on "MMTTY filtering"?
>
> David
> VE3VID



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