[amsat-bb] Re: What a shame!
ko6th_greg at hotmail.com
Sat Feb 21 11:14:14 PST 2009
We have PAVE PAWS out here too (lucky us!). Though I haven't had any problems from it, I've always wondered if we'd be trading one problem for another... If the uplink were on 70cm, would we be in violation of the power restrictions when we transmit? Many of the 70cm repeaters here are either off the air or turned down so far as to almost not be worth having.
Personally, I've got some serious hillage between my QTH (CM98kx) and most of the valley, but Google Maps indicates there's a nice little canyon dropping down the hill directly in the direction of the AF base. Makes me nervous on those low passes to the North West.
> Date: Sat, 21 Feb 2009 13:00:17 -0500
> From: stanw1le at verizon.net
> To: kc6uqh at cox.net
> CC: AMSAT-BB at amsat.org
> Subject: [amsat-bb] Re: What a shame!
> Hello Art,
> I would second that. The 435 MHz downlink is very difficult from this
> location with the
> PAVE PAWS, multi megawatt gov radar system.
> I definitely second the use of 2M as a satellite downlink.
> Stan, W1LE Cape Cod
> Art McBride wrote:
> > I think we need to use lowest frequency for the down link as 6dB of path
> > loss occurs for every octave increase in frequency. 2M to 70cm = (-9dB).
> > This keeps the power budget down on the space craft. It also helps hearing
> > the satellite and causes O/E problems to gravitate to the up link.
> > Art, KC6UQH
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