[VHFcontesting] 70 cm allocations

James Duffey JamesDuffey at comcast.net
Tue Jan 26 19:45:49 PST 2010


The latest (January 15, 2010) FCC frequency allocations can be down loaded here:

< http://www.fcc.gov/oet/spectrum/table/fcctable.pdf >

Footnote US7 contains the restrictions on 70 cm operation:

US7	In the band 420-450 MHz and within the following areas, the peak envelope power output of a transmitter employed in the amateur service shall not exceed 50 watts, unless expressly authorized by the FCC after mutual agreement, on a case-by-case basis, between the District Director of the applicable field office and the military area frequency coordinator at the applicable military base. For areas (e) through (g), the appropriate military coordinator is located at Peterson AFB, CO.

(a) Arizona, Florida, and New Mexico.
(b) Within those portions of California and Nevada that are south of latitude 37° 10' N.
(c) Within that portion of Texas that is west of longitude 104° W.
(d) Within 322 km (200 miles) of Eglin AFB, FL (30° 30' N, 86° 30' W); Patrick AFB, FL(28° 21' N, 80° 43' W); and the Pacific Missile Test Center, Point Mugu, CA (34° 09' N, 119° 11' W).
(e) Within 240 km (150 miles) of Beale AFB, CA (39° 08' N, 121° 26' W).
(f) Within 200 km (124 miles) of Goodfellow AFB, TX (31° 25' N, 100° 24' W) and Warner
Robins AFB, GA (32° 38' N, 83° 35' W).
(g) Within 160 km (100 miles) of Clear, AK (64° 17' N, 149° 10' W); Concrete, ND (48° 43' N,
97° 54' W); and Otis AFB, MA (41° 45' N, 70° 32' W).

I could have sworn that last time I checked this it said 50 Watts RMS, but that is pretty much irrelevant for most of our operations. This document is revised in March, October, and January of each year as far as I can tell.  

These are pretty pernicious restrictions for weak signal work, and don't make a whole lot of sense as the EIRP appears to be unlimited. - Duffey
--
KK6MC
James Duffey
Cedar Crest NM







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