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Grex Radio Item 42: Scanner info: FCC freq database
Entered by eprom on Mon Aug 18 01:39:21 UTC 2003:

Ever wanted to know what freqs are active around your QTH? Sick of 
searching for public safety lists on the web compiled by Joe Blow, 
only to find outdated, inaccurate, or conflicting data? Well just
go to the FCC database, located here:

http://gullfoss2.fcc.gov/cgi-bin/ws.exe/genmen/lat_long_freq.hts

simply plug in your ICBM coordinates, select "point radius", the
radius size in miles, and a range of freqs to search.
 
p.s. I'd put in a small radius (5 miles or less) as a test. Depending
on your location it can take quite awhile to retreive the data.

5 responses total.

#1 of 5 by krokus on Wed Aug 20 04:56:13 2003:

Max distance on the search is 75 miles.  Of course you could buy the CDs
from Spectrum, and search on any distance you want.  :)

#2 of 5 by eprom on Mon Aug 2 00:54:13 2004:

FYI

121.5 MHz and 243 MHz (the emergency guard channels) will be 
replaced by 406 MHz. Begining in 2009 only 406 MHz beacons
will be detected by the Cospas-Sarsat satellite system.

The digital 406 MHz beacons offer many advantages over analog 
121.5/243 MHz beacons. With a 406 MHz beacon, the position of 
the distress can be relayed to rescue services more quickly, 
more reliably and with greater accuracy.

more detail can be found on the site:

http://www.cospas-sarsat.org/FirstPage/121.5PhaseOut.htm

#3 of 5 by krokus on Mon Aug 16 03:36:47 2004:

You mean just for the EPRIBs, not the actual aviation guards.  Right?

#4 of 5 by eprom on Mon Aug 16 23:09:41 2004:

This is what I found on the FAA website:

The Cospas-Sarsat system has announced the termination of satellite
monitoring and reception of the 121.5 MHz and 243.0 MHz frequencies
in 2009. The Cospas-Sarsat system will continue to monitor the 406 
MHz frequency. What this means for pilots is that after the 
termination date, those aircraft with only 121.5 MHz or 243.0 MHz 
ELTs onboard will have to depend upon either a nearby Air Traffic
Control facility receiving the alert signal or an overflying 
aircraft monitoring 121.5 MHz or 243.0 MHz detecting the alert. To 
ensure adequate monitoring of these frequencies and timely alerts
after 2009, all airborne pilots should periodically monitor these 
frequencies to try and detect an activated 121.5/243.0 MHz ELT.

src: http://www.faa.gov/atpubs/aim/Chap6/aim0602.html

#5 of 5 by krokus on Tue Aug 17 02:37:57 2004:

Ah...  so it's just the ELTs and EPIRBs that won't be support anymore.
I couldn't see the IAD and MAD being eliminated.

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