[aprssig] Using SSID's outside 0 to 15

[Bill V WA7NWP]

> There is already a group doing this.   See:
>
>     <http://propnet.org>

Also Weak Signal Propagation Reporter -- WSPR

  http://physics.princeton.edu/pulsar/K1JT/wspr.html

>
> Originally, they used  UIview and the PSK31 Server plugin developed for
> UIview   (a distant forerunner of Chris's APRS Messenger program).  Their
> website now offers a purpose-built PSK31  application.    They are beaconing
> on
> 1.9982   3.5982   7.1032   10.1389   14.097   18.105     21.098   24.924
> 28.131   50.291   144.288   and 432.300
> according to their website.     They have an Internet-based backend with
> Google mapping, somewhat similar to findu or aprs.fi.