[RTTY] Screenshots of PropNet interference?

[Kok Chen]

There are many screenshots on the web of Pactor III QRM, but I haven't  
seen one showing PropNet QRM.

The PropNet stuff is very narrow band (PSK31) and the bursts are short  
(the message refers you to a web page rather than passing a lot of  
actual data), so the likelihood of it actually QRMing someone is  
somewhat low.

PropNet is actually useful enough that they should initiate an FCC  
petition asking for a small window that is dedicated for such  
propagation studies.

Unlike Pactor III, there is no apparent monetary interests involved.  
Seems to me to be just a bunch of amateurs who are playing with radio  
techniques, using openly available software and hardware that both can  
be homebrewed.

73
Chen, W7AY



On Feb 25, 2008, at 11:33 AM, George Henry wrote:

> I didn't say it was you, Bill...  it wasn't even someone from this  
> group!
>
>
> George
>
> -----Original Message-----
>> From: FireBrick <w9ol at billnjudy.com>
>> Sent: Feb 25, 2008 10:49 AM
>> To: ka3hsw at earthlink.net
>> Subject: Re: [RTTY] Screenshots of PropNet interference?
>>
>> I never said that.... I saw it on my screen but never took screen  
>> shots.
>>
>>
>> On 2/25/2008 10:10:14 AM, George Henry (ka3hsw at earthlink.net) wrote:
>>> Anybody got any screenshots of interference to an ongoing QSO from a
>>> PropNet beacon?  I took someone at their word when they told me  
>>> that there
>>> were examples on QRZ.com, and repeated their claim, without  
>>> verifying it
>>> first.
>>>
>>> Now I am being pressed to deliver on that claim...  :-(
>>>
>>> George, KA3HSW