[aprssig] New Year! Clean up the APRS garbage...

[John Langner WB2OSZ]

>  IW2EJH pointed out an excellent web page that shows how BAD a packet
signal
>  can become when the TX level is set too high (MOST ARE!!!).
>  
>    "Overdriving the Transmitter has been the major of the causes.  Have a
look
>    at the details in this doc:
>    http://www.febo.com/packet/layer-one/transmit.html  really well
explained.
>    73 iw2ejh"
>  
>  Bob, WB4aPR

That's a wonderful article because it clearly explains how signals get
distorted, making them less likely to get decoded properly.  

The Spring 2015 issue of Packet Status Register contains some results from
more investigation into this topic.    http://www.tapr.org/psr/psr128.pdf