[RTTY] Dealing with High-Pitched Background Noise?

[John GW4SKA]

You've had the best advice going from Bill and Jeff. One thing to add; don't 
waste a minute trying to use a simple external amplifier and tone control. 
You are only hearing a very narrow portion of the audio spectrum. Any 'tone' 
adjustment would be EXACTLY the same as turning the volume down on the rig.

John GW4SKA

----- Original Message ----- 
From: "Michael Rapp" <mdrapp at gmail.com>
To: <rtty at contesting.com>
Sent: Friday, July 25, 2014 4:14 PM
Subject: [RTTY] Dealing with High-Pitched Background Noise?


> Hi all,
>
> During the NAQP I used my narrow RTTY filters on my FT-950 to great 
> effect.
> Whenever signals were close, if I dialed down my filter to 300 Hz
> bandwidth, it (of course) blocked out the adjacent signals and made the 
> one
> I was trying to tune in much more distinct.  When it was really crowded, I
> even went down to 200 Hz to "hug" the signal.
>
> However, I noticed an annoying disadvantage when I did this.  With the
> narrow filter engaged, the background noise becomes much higher in pitch,
> to the point that I find it quite uncomfortable to listen to.
>
> Is this normal or is it just a quirk of my rig?  Does this bother anyone
> else and what have you done to mitigate it?
>
> What I may try doing is take auxiliary audio out (called Rec Out on Yaesu
> radios) and put it into an amplifier with tone controls and just really
> turn down the treble.  All I am really asking for my speaker to do is help
> me detect and tune in the RTTY sign audibly, not listen to it in high
> fidelity.  Of course, if I do this I'm going to probably attenuate weak
> signals.  Hmmm...
>
> 73,
> -- 
> /*/-=[Michael / KT5MR]-=/*/
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