[VHFcontesting] EME Opportunity

[david vari]

--- On Mon, 4/12/10, WB2AIV Bill <wb2aiv at roadrunner.com> wrote:


From: WB2AIV Bill <wb2aiv at roadrunner.com>
Subject: [wnydxa] EME Opportunity
To: "WNYDXA Yahoo Group" <wnydxa at yahoogroups.com>
Date: Monday, April 12, 2010, 1:10 AM


  



This is copied from the Amsat reflector by Jim, W2IMY. 

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   (Boy! Wouldn't it be neat to have a 60 dBi antenna on 20 meters!!)

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 
CW. 

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! 

[ANS thanks John, KB1MGI, for the above information] 

/EX 
More info on www.amsat.org 

Jim 

W2IMY 
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