Hello all, just a curiosity, how did you found that the ERP is "... 243,902,443 Million Watts".
Thanks 73s Fabio iw8qku ----- Original Message ----- From: "MM" <ka1...@yahoo.com> To: <amsat-bb@amsat.org> Sent: Wednesday, April 07, 2010 3:06 PM Subject: [amsat-bb] Arecibo on 432 MHz Moon Bounce > 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. > > enjoy > > wf1f > www.marexgm.org > > (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 > 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! > > >From QRZ.COM > > KB1MGI ...snip... _______________________________________________ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb