[RTTY] INRAD filter question

[David VE3VID]

The laptop is a Gateway running XP,  N1MM,  into a SignaLink USB outboard sound card,  into the ACC port on the TS-450s.  I am neither for or against true FSK, just the SignaLink allows me to do many other types of "sound card" digital modes such as PSK and Olivia.

 

I was able to do RTTY no problem with the system before the 400hz filters


 


> From: w7ry at inbox.com
> To: ve3vid at hotmail.com; rtty at contesting.com
> Date: Sat, 25 Sep 2010 18:52:16 -0700
> Subject: Re: [RTTY] INRAD filter question
> 
> FSK is MUCH better than AFSK.... What are you using for a computer and 
> software? I use windows XP and MMTTY with N1MM. Works just fine in FSK 
> mode.
> 
> Is there a particular reason you don't want to run FSK?
> 
> 73
> Jim W7RY
> 
> 
> --------------------------------------------------
> From: "David VE3VID" <ve3vid at hotmail.com>
> Sent: Saturday, September 25, 2010 6:48 PM
> To: "RTTY contest group" <rtty at contesting.com>
> Subject: Re: [RTTY] INRAD filter question
> 
> >
> > Wow. Well if thats the case it was an expensive waste of $300.
> >
> > However, why would the filters be unusable in AFSK(LSB)? Dont they just 
> > narrow the IF bandpass to 400hz?
> >
> >
> >
> >
> >
> >> From: w7why at frontier.com
> >> To: rtty at contesting.com
> >> Date: Sat, 25 Sep 2010 18:43:48 -0700
> >> Subject: Re: [RTTY] INRAD filter question
> >>
> >> Hi David
> >>
> >> I have the same setup as you--2 Inrad filters. They won't work in AFSK.
> >> You have to run FSK to use the narrow CW filters. 73
> >> Tom W7WHY
> >>
> >>
> >> >
> >> > Ummmm.......nope. I had the rig in LSB (AFSK). And the tone pair as set
> >> > by MMTTY is 2125/170
> >> >
> >> >
> >> >
> >>
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> 
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