[aprssig] PCSAT still trucking

Andrew Rich vk4tec at tech-software.net
Sat Oct 10 09:52:11 EDT 2009


----- Original Message ----- 
From: "Bob Bruninga " <bruninga at usna.edu>
To: <aprssig at tapr.org>
Sent: Saturday, October 10, 2009 10:37 PM
Subject: [aprssig] PCSAT still trucking

> Driving the Open road yesterday, I was surprised to see a CQ packet from 
> PCSAT show up on my Mobile on 144.39.
> Even I had forgotten that PCSAT does have a downlink on 144.39 over NOrth 
> America, and if the channel happens to be quiet at the instant it 
> transmits, then you can receive it on your mobile right there along with 
> all the other local traffic!
> Sure enough, I quickly QSY'd to its main downlink on 145.825, and there it 
> was.
> THen I went back to my LIST to read the packet in detail and it was GONE! 
> Yep, the station was beyond my POSITION LIMIT, and so my radio did not 
> save it..  Drats...
> I used to keep posiiton limit turned OFF, so that I could capture these 
> random packets from hundreds or a thousand miles away, but have not done 
> that in years.
> A quick check of pcsat.aprs.org and ariss.net (now 24 hours later) and I 
> cant figure out who it was.  ARISS downlink has already rolled over and th 
> efew stations via PCSAT do not match the W1... call I thought I saw.
> Oh well.  SO if you are on the open road far away from heavy activity on 
> 144.39, do not be surprised if you occasionally hear a packet via PCSAT. 
> If you do, then QSY to 145.825 and try to work them.
> PCSAT is basically dead, but when it DOES come over during mid-day in the 
> Northern Hemisphere it can sometimes have enough power to relay a packet 
> or two.  Being in DEFAULT mode, the 144.39 and 145.825 transmitters are 
> cross-connected and that is why you can sometimes hear it on 144.39 in an 
> uncongested area in North America.
> But if you have your mobile POSITION LIMIT set to anything shorter than 
> 1000 miles or more, you may not capture them.
> Bob, WB4APR
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