[GreenKeys] RTTY Signal

[Bob Camp]

Hi

It could be something at a low baud rate. You really need to take a  
look at the pulse widths on a histogram to see what you have.

Bob


On Nov 17, 2007, at 12:58 PM, Ron Ott wrote:

> I listened to it last nite at 0540Z and it sounded like it was  
> marking for long periods, then sending a few characters. Since it  
> was using 170 Hz shift, the baud rate could not be very high --- I'm  
> guessing that it was 50 or 75 baud, based on the few characters I  
> heard. I should have tried my WinRadio software to analyze the bit  
> width. Another mystery station.
>
> Ron
> W6XY
>
> ----- Original Message ----
> From: Bob Camp <ham at cq.nu>
> To: Dave MAyfield <wrl at gwltd.com>
> Cc: Greenkeys List <greenkeys at mailman.qth.net>
> Sent: Saturday, November 17, 2007 8:10:58 AM
> Subject: Re: [GreenKeys] RTTY Signal
>
> Hi
>
> Are you sure it's a RTTY signal at all? Does it have a proper start
> and stop pattern? Many systems idle with a square wave of some sort.
>
> Bob
>
>
> On Nov 16, 2007, at 8:27 PM, Dave MAyfield wrote:
>
>> I'm sitting here been listing to a RTTY signal on 8.412.33 USB for
>> the last hour not sure who the station is but they been sending
>> GUGUGUGUGUGUGUGU for last hour. Signal is strong. Time now 01:25 UTC
>> 11/17/07 anyone else hear it or know who it is.
>>
>> 73 Dave W9WRL.com
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>
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