[RTTY] INRAD filter question

Jim W7RY w7ry at inbox.com
Sat Sep 25 18:04:01 PDT 2010


What mode do you have the radio in?
73
Jim W7RY


--------------------------------------------------
From: "David VE3VID" <ve3vid at hotmail.com>
Sent: Saturday, September 25, 2010 5:40 PM
To: "RTTY contest group" <rtty at contesting.com>
Subject: [RTTY] INRAD filter question

>
> Last spring I got some good info and help from RTTY hams here about 
> loading a set of INRAD filters into my Kenwood TS-450s.   I chose 2 x 
> 400hz filters for the 8.83 and 455 IF stages.  The units went into the 
> radio slick, and the Kenwood menu options to activate the new filters went 
> without incident.  (INRAD No.s 103 & 104)  Prior to this I have been able 
> to do AFSK RTTY lots of DX, some contests, and some fun ragchews on 
> RTTY........so the system works (MMTTY into a SignaLink USB)
>
>
>
> I am trying out the filters for the first time this weekend during the 
> CQWW RTTY contest.  I have a problem.  If I click both filters on and tune 
> across the band I hear nothing.  If I leave my IF stages wide and tune a 
> RTTY station, as soon as I click in either of the new filters the RTTY 
> station is gone and my S-meter drops way down.  Its like an attenuator was 
> suddenly clicked in, sometimes my meter goes to S-zero, the volume out of 
> the radio drops significantly and MMTTY's tuning indicators go blank.
>
>
>
> What am I missing,  what did I forget............??  Must be something, 
> these are popular filters.  Any help appreciated.............
>
>
>
> David
>
>
>
>
>
>     VE3VID          Located in rural Canada
> Solar power.  Wood heat.
> Mosley tribander @ 22m
> 2element delta-quad on 40m
> Lots of space for dipoles,
> bears and wolves......73
>
> http://www.ve3vid.webs.com/
>
>
>
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