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[aprssig] KC2TUA/KC2UFG Ballon QRM

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Sun Mar 22 20:22:36 UTC 2009


I'm not sure they really intended this long of a flight, but I could be 
reading their "loss of control" incorrectly.  Check out the blog at:

https://explore.twitter.com/PBH3  (Yes, twitter has an invalid 
certificate for this particular server)

Lynn (D) - KJ4ERJ

Ron wrote:
> OK the balloon is out of my range now and approaching Nfld.
>
> I respectfully disagree that the effect of these transmissions was either minimal or short-lived.
>
> >From 30,000 ft the APRS signal was being heard by nodes over 300 miles away, which could be about 25 digipeaters...although some would hear their neighbors transmission and not repeat.
> Not to mention every home station that has WIDE1-1 set for digipeating.
>
> This has about 10 times more effect than a mobile driving by at 60mhp.
>
> In this case the duration of the pass was also significant. From approx 08:20z to 19:30z it was heard in my area.
>
> While the effect to our APRS network was not severe, the 147.000- repeater took a significant beating for about 10 hours thanks to KC2UFG transmitting on an inappropriate frequency.
>
>
> I am very disappointed that people planning such extended balloon expeditions do not take these things into consideration.
>
> It has been discussed on this group a number of times and I though there was an understanding of proper beacon rates and paths.
> Especially the consideration of such rates while aloft (>1000ft),
> eg: direct paths only and reasonable beacon rates based on coverage/average speed.
>
> 73,
> VE1AIC Ron
>
>
>
>
>       
>
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