[amsat-bb] Arecibo on 432 MHz Moon Bounce

MM ka1rrw at yahoo.com
Wed Apr 7 06:06:54 PDT 2010

Hi all:
Here is a EME event you cant miss.
Dust off your CW key, its time for Satellite, QRP EME.

The 1,000 foot dish has 60 dBi on 432 mc and 400 watts.
That comes out to be approximately 243,902,443 Million Watts ERP.



(thanks to KB1MGI for passing on this data)

Arecibo on 432 MHz Moon Bounce

The Arecibo Observatory Amateur Radio Club will be putting the
1000-foot radio telescope on the air for 432 MHz EME from April 16-18.

It can be heard with a small hand-held yagi pointed at the moon

The scheduled times of operation are:

April 16: 1645 - 1930 UTC

April 17: 1740 - 2020 UTC

April 18: 1840 - 2125 UTC

Callsign: KP4AO

Tx Frequency: 432.045 MHz

Rx Frequency: 432.050 to 432.060+

Tx power: 400 W

Antenna gain: 60 dBi

System noise temp: 120 K (cold sky)

System noise temp: 330 K (when pointed at moon)

KP4AO can be heard with a small hand-held yagi pointed at the moon and a
good receiver. A 15 dBi antenna and 100 W will be enough to work us on

Operators at KP4AO will do their best to work as many stations as
possible. Each session will start with a brief announcement and CQ in
SSB. SSB QSOs may continue for 30 minutes to an hour, if the QSO rate
remains high.

The mode will be shifted to CW as soon as it is judged that higher QSO
rates would result.

We will listen for calls at frequencies 5-15 kHz higher than our own,
and even higher if QRM warrants. Callers who s-p-r-e-a-d o-u-t are more
likely to be copied.

If you've already worked us in any mode, please do not call again --
give others a chance.

If we call "CQ QRP", we will listen for stations running 100 W or less
to a single yagi. Please do not answer such a CQ if you are running more
power or have a larger antenna.

On April 18, if we reach a condition where most calling stations have
been worked, and we judge that operating in the digital mode JT65B would
produce a higher QSO rate, we will switch to JT65B.

Note that any of these planned operating strategies may be changed as
circumstances dictate.

We are extremely fortunate to have been granted access to the world's
largest radio telescope for this amateur radio good-will event. We look
forward to working as many stations as possible in the alloted time!



Moon-Net Email reflector

http://list- serv.davidv. net/mailman/ ...erv.davidv. net

Moon Bounce information

http://www.vhfdx. info/eme. html

UK Ham makes EME contact with just 25 watts

http://www.southgat earc.org/ news/jan. ..me_contact. htm

Earth-Moon-Earth with 20 Watts

http://www.southgat earc.org/ news/jan. ..h_20_watts. htm

WSJT Software for EME

http://www.physics. princeton. edu/pulsar/ K1JT/


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