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Re: ERP on V and L for AO-40 (Shouldn't this be mode U and L?)??



I was able to hear 0.5 watts CW into 70 feet of 1/2 inch hardline into a 19
element linear antenna. Receiver is a 4.5 footer.

I think most people's problem is their downlink.

Pieter


----- Original Message -----
From: "Keith N6ORS" <k2@pe.net>
To: "Lee" <lee-fl@cfl.rr.com>; "amsat" <amsat-bb@AMSAT.Org>
Sent: Tuesday, June 12, 2001 21:46
Subject: Re: [amsat-bb] ERP on V and L for AO-40 (Shouldn't this be mode U
and L?)??


>   Blah, Blah, Blah,
>
> I used 20 watts and a 5 element beam and talked to 8 ppl the first day ,
no
> problem.  actually I chatted with ppl most the day.
>
> Keith N6ORS
>
>
>
> Lee wrote:
>
> > During the transponder test I found it almost impossible to get in the
first
> > weekend.  Once LEILA was turned on I could get a usable signal into the
> > satellite near apogee with 6.5 watts (measured) into a 12 element linier
> > yagi.  If the gain of the antenna is in fact the quoted 14 dbi my EIRP
would
> > have been 163 watts.
> >
> > One thing I've been wondering is how many people are paying attention to
the
> > FCC regs about 70cm power levels which impact a surprisingly large area
of
> > the US.  The following is from 97.313:
> >
> >     (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\o\.
> >
> > Then to find the affected areas we read in 2.106:
> >
> >     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
> > Commission after mutual agreement, on a case-by-case basis, between the
> > Federal Communications Commission Engineer in Charge at the applicable
> > district office and the military area frequency coordinator at the
> > applicable military base. For areas (e) through (j), the appropriate
> > military coordinator is located at Peterson AFB, CO.
> >     (a) Those portions of Texas and New Mexico bounded on the south by
> > latitude 31 deg. 45' North, on the east by longitude 104 deg. 00' West,
> > on the north by latitude 34 deg.30' North, and on the west by longitude
> > 107 deg. 30' West;
> >     (b) The entire State of Florida including the Key West area and the
> > areas enclosed within a 322-kilometer (200-mile) radius of Patrick Air
> > Force Base, Florida (latitude 28 deg.21' North, longitude 80 deg. 43'
> > West), and within a 322-kilometer (200-mile) radius of Eglin Air Force
> > Base, Florida (latitude 30 deg. 30' North, longitude 86 deg. 30' West);
> >     (c) The entire State of Arizona;
> >     (d) Those portions of California and Nevada south of latitude
> > 37 deg. 10' North, and the areas enclosed within a 322-kilometer (200-
> > mile) radius of the Pacific Missile Test Center, Point Mugu, California
> > (latitude 34 deg. 09' North, longitude 119 deg. 11' West).
> >     (e) In the State of Massachusetts within a 160-kilometer (100-mile)
> > radius around locations at Otis Air Force Base, Massachusetts (latitude
> > 41 deg. 45' North, longitude 70 deg. 32' West).
> >     (f) In the State of California within a 240-kilometer (150-mile)
> > radius around locations at Beale Air Force Base, California (latitude
> > 39 deg. 08' North, longitude 121 deg. 26' West).
> >     (g) In the State of Alaska within a 160-kilometer (100-mile) radius
> > of Clear, Alaska (latitude 64 deg. 17' North, longitude 149 deg. 10'
> > West).
> >     (h) In the State of North Dakota within a 160-kilometer (100-mile)
> > radius of Concrete, North Dakota (latitude 48 deg. 43' North, longitude
> > 97 deg. 54' West).
> >     (i) In the States of Alabama, Georgia and South Carolina within a
> > 200-kilometer (124-mile) radius of Warner Robins Air Force Base, Georgia
> > (latitude 32 deg. 38' North, longitude 83 deg. 35' West).
> >     (j) In the State of Texas within a 200-kilometer (124-mile) radius
> > of Goodfellow Air Force Base, Texas (latitude 31 deg. 25' North,
> > longitude 100 deg. 24' West).
> >
> > ----
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>
> ----
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