[Moon-Net] 3 METER DISH AVAILABLE IN MD

[samudra.haque at gmail.com]

Well, 3m sizes gets you up to commercial quality service for 512kbps ~ 1.5Mbps QPSK modulation data rates to GEO easily with 5~10 Watts C-band. I wonder what it would do with regard to RX from the Moon which is far away, and most likely 10 GHz when the gateway station is operational? 

 

Wouldn’t the distance alone require something of the order of 4.5m to 11m to have a focus rather than suffer from the noise reflected from a very broad lunar landscape? 

 

I’m lazy and haven’t done a link budget at that distance .. if someone was interested to do it, I would volunteer to help with that analyses. 

 

From: Tacos <tacos-bounces+samudra.haque=gmail.com at amrad.org> On Behalf Of Iain McFadyen
Sent: Saturday, February 6, 2021 8:00 PM
To: tacos at amrad.org
Subject: Fwd: [Moon-Net] 3 METER DISH AVAILABLE IN MD

 

Just seen on another mailing list...

---------- Forwarded message ---------
From: Bart Jahnke via Moon-net <moon-net at mailman.pe1itr.com <mailto:moon-net at mailman.pe1itr.com> >
Date: Sat, Feb 6, 2021, 23:54
Subject: [Moon-Net] 3 METER DISH AVAILABLE IN MD
To: Moon-Net 1 <moon-net at mailman.pe1itr.com <mailto:moon-net at mailman.pe1itr.com> >, VHF Reflector <vhf at w6yx.stanford.edu <mailto:vhf at w6yx.stanford.edu> >



All,

 

ARRL has been informed that  Science Applications International Corporation (SAIC) is in the process of dismantling a 3.0M RX/O AZ/EL PRIME FOCUS antenna with half shell deice and were wondering if hams would have any use for it or know someone that would? 

 

 It is currently deployed at the National Weather Service’s NOAA Center for Weather and Climate Prediction in Riverdale, Md and will be removed sometime in March.  

 

SAIC says they have no use for it and would like to see this used (instead of recycled).

 

If you have any interest, contact Ed Hare W1RFI at ARRL to discuss w1rfi at arrl.org <mailto:w1rfi at arrl.org>  

 

73 Bart W9JJ

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