[Forum] Fwd: [amateur-DSN] Digest Number 983

Hartmut Paesler amsat-dl-forum1 at dl1ydd.de
Mon Mar 7 17:45:52 CET 2011


Hallo,

wie bereits vor einiger Zeit wird wieder mit dem weltgrößten Radioteleskop
der Welt (330 m Durchmesser!) EME-Amateurfunkbetrieb auf 70 cm durchgeführt.

Ich konnte KP4AO beim letzten Mal mit meiner ganz normalen Satellitenstation
hören (Achtung: Polarisationsdrehung bei der Reflektion am Mond), zu einem
QSO hat es leider nicht gereicht.

Auf jeden Fall war das eine sehr eindrucksvolle Erfahrung und ich kann nur
jedem Interessierten empfehlen, es einmal zu versuchen.

73 Hartmut DL1YDD


-------- Original-Nachricht --------
Betreff: [amateur-DSN] Digest Number 983
Datum: 7 Mar 2011 16:21:24 -0000
Von: amateur-DSN at yahoogroups.com
Antwort an: No Reply<notify-dg-amateur-DSN at yahoogroups.com>
An: amateur-DSN at yahoogroups.com

There is 1 message in this issue.

Topics in this digest:

1. Arecibo EME
    From: Jose'


Message
________________________________________________________________________
1. Arecibo EME
    Posted by: "Jose'" esa_jf88 at yahoo.com esa_jf88
    Date: Sun Mar 6, 2011 9:20 am ((PST))

Hi all,

       ** 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.

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 linearly polarized antenna and 100 W will be enough to work us on CW.  KP4AO will
be circularly polarized, so polarization lockout will not be a problem.
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.
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.

(From SDR News)
Regards,
José //






Messages in this topic (1)





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