[Scan-DC] Something different -- ACARS (131.55 MHz)

[Andrew Clegg]

Mike,

Thanks for the info. It reminded me that I discovered exactly what you said--it works best if you leave the squelch open. I used an Icom R7000 and R8500, and a Bearcat 247T. It worked on all three. No mods needed. 

Andy

Typos courtesy of my iPhone

On Mar 26, 2012, at 21:08, "mike agner" <ka3jjz1 at verizon.net> wrote:

> The RR Wiki has a short article on the subject, along with the other 
> freqs ACARS has been heard on...
> 
> http://wiki.radioreference.com/index.php/ACARS
> 
> It would be rather difficult to scan these freqs, since you need to keep 
> the squelch open to hear the sync tone, unless your scanner's squelch 
> opens up fast enough - it comes across very fast (I want to say 100ms, 
> but I could be wrong...). However as noted in the article, you don't 
> need to modify your scanner at all (contrary to what others might 
> think...) to be able to get a good clean data signal
> 
> I used to fool around with this a bit; some companies will use the 
> alternate freqs just to get away from the congestion on 131.55. Those of 
> you that have fooled around with amateur packet radio will understand 
> this; packet collisions result in lost data, and there are times when 
> that simply won't do...
> 
> HTH...Mike
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