[amsat-bb] Re: AMSAT Symposium News Posted to the Web
John B. Stephensen
kd6ozh at comcast.net
Fri Oct 16 01:46:20 PDT 2009
1 kW EIRP is allowed if the half-power point is 10 degrees or more above the
horizon. There is an analysis for HEOs in the Eagle 70 cm receiver
----- Original Message -----
From: "W4ART Arthur Feller" <afeller at ieee.org>
To: "Bob McGwier" <rwmcgwier at gmail.com>
Cc: "'Amsat BB'" <amsat-bb at amsat.org>
Sent: Thursday, October 15, 2009 14:22 UTC
Subject: [amsat-bb] Re: AMSAT Symposium News Posted to the Web
> Specific information is available on line. Here's the text.
> 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) Those portions of California and Nevada that are south of latitude
> 37°10′ N.
> (c) 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′
> (f) Within 200 km (124 miles) of Goodfellow AFB, TX (31°25′ N,
> 100°24′ W) and 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).
> So, 435-438 MHz is available with limited output power. No limit on
> antenna again, that I see.
> I hope this helps.
> 73, art.....
> W4ART Arlington VA
> On 15-Oct-2009, at 9:56 AM, Bob McGwier wrote:
>> Did I ever tell you about the time I cranked 130w on 435 in
>> R.I. and I received an admonishing phone call from OTIS, AFB asking me
>> if I was on the air, reminding me of the limitations and my obligation
>> to warn them? I hope I was not the cause of a false alarm, but I
>> know. I had never spoken to them and didn't even know about the
>> exclusion zones. This was ancient days, right after AO-10 was
>> launched. I don't know the state of the rules or enforcement today
>> that caused some consternation let me tell you. Fred at least has the
>> obligation to ask what the rules are currently.
>> Ben Jackson wrote:
>>> Sanford, Fred wrote:
>>>> I hope that AMSAT NA does not use an 70cm uplink, because that band
>>>> is not available for transmitting in all areas of the US. I live
>>>> near Cape Cod, MA and 70cm is not available for transmitting because
>>>> of PAVE PAWS.
>>> Hi Fred:
>>> I don't think PAVE PAWS prohibits transmission, it only affected
>>> repeater operation. At least I haven't heard anything regarding that,
>>> and I was fairly active on 70cm until last Monday when W1WNS/R was
>> (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio
>> Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
>> NJQRP, QRP ARCI, QCWA, FRC.
>> "You don't need to see the whole staircase, just
>> take the first step.", MLK.
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> What we can do is to live out our lives as best we can with purpose,
> and with love, and with joy. We can use each day to show those who
> are closest to us how much we care about them, and treat others with
> the kindness and respect that we wish for ourselves. We can learn
> from our mistakes and grow from our failures. And we can strive at
> all costs to make a better world, so that someday, if we are blessed
> with the chance to look back on our time here, we know that we spent
> it well; that we made a difference; that our fleeting presence had a
> lasting impact on the lives of others.
> - Barak
> Obama, 29 Aug 2009
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