[amsat-bb] Re: power restriction in New Mexico on 435 MHz

Lee McLamb ku4os at cfl.rr.com
Tue Feb 26 18:46:59 PST 2008

(f) No station may transmit with a transmitter power exceeding 50 W 
PEP on the UHF 70 cm band from an area specified in footnote US7 to 
Sec. 2.106 of part 2, unless expressly authorized by the FCC after 
mutual agreement, on a case-by-case basis, between the District Director 
of the applicable field facility and the military area frequency 
coordinator at the applicable military base. An Earth station or 
telecommand station, however, may transmit on the 435-438 MHz segment 
with a maximum of 611 W effective radiated power (1 kW equivalent 
isotropically radiated power) without the authorization otherwise 
required. The transmitting antenna elevation angle between the lower 
half-power (-3 dB relative to the peak or antenna bore sight) point and 
the horizon must always be greater than 10 degrees.

2.106 Footnote US7
(a) Those portions of Texas and New Mexico bounded on the south by latitude 
31°45' North, on the east by 104°00' West, on the north by latitude 34°30' 
North, and on the west by longitude 107°30' West;

The FCC has a nice map of the areas affected by the 50w limit at


On Tuesday 26 February 2008 21:04:55 Robert L Lasso wrote:
> I need clarification about the power restrictions in New Mexico on 435
> MHz band for terrestrial and satellite communications. Can't seem to
> find the definitive answer by searching on the internet. Any help is
> appreciated. 73, Robert W6RQR
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