Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site mgweed.UUCP
Path: utzoo!watmath!clyde!cbosgd!ihnp4!mgnetp!mgweed!rjr
From: rjr@mgweed.UUCP (Bob Roehrig)
Newsgroups: net.ham-radio
Subject: arrl bulletin nr 86 (packet buffs - take note)
Message-ID: <20726@mgweed.UUCP>
Date: Tue, 1-Oct-85 19:19:46 EDT
Article-I.D.: mgweed.20726
Posted: Tue Oct  1 19:19:46 1985
Date-Received: Thu, 3-Oct-85 04:26:17 EDT
Organization: AT&T Information Systems - Montgomery Illinois
Lines: 46


qst de k9eui
hr arrl bulletin nr 86  from arrl headquarters
newington ct  september 30, 1985
to all radio amateurs bt

on october 8 the earth will pass through  the  orbit  of  comet
giacobini  zinner,  only  25  days  after the comet has passed.
experts have estimated that this  might  repeat  might  produce
6000  to  10000  meteors  per hour.  the annual perseids meteor
shower produces about 40 to 60 per hour.  packet  radio  offers
an  excellent  opportunity  to  collect  data  on the effect of
meteor showers on vhf communication.

it is suggested that from 0500 to 2100z on  october  8,  packet
stations  call  cq  on frequencies of 28.0985, 50.65 and 145.09
mhz about every 10 seconds and send only  the  two  letter  two
figure grid square of your location, optionally followed by the
hour and minutes in zulu time if your setup can  be  programmed
to  do  so.   then  monitor  and  save  to disk all incoming cq
transmissions if possible. if you wish to  connect  to  another
station,  exchange  grid squares.  power levels of the order of
100 watts to the legal output limit are usually  necessary  for
meteor scatter communication.

on 28.0985 mhz use direct frequency shift keying  or  frequency
shift  keying of audio tones via a single sideband transmitter.
on 50.65  and  145.09  mhz  use  frequency  shift  keyed  tones
modulating  a frequency modulated transmitter.  all frequencies
are center frequencies.

according to fcc rules, the above transmissions must  be  under
operator,  not automatic, control at all times.  by comparison,
unattended beacons in these bands are limited to 100  watts  on
the  subbands  of  28.2  to  28.3, 50.05 to 50.08 and 144.05 to
144.06 mhz.

listen for w1aw on 50.65 mhz.

please send reports to,

wake digital communications group c/o ed stephenson,  ab4s  700
madison ave , cary nc 27511

a summary will be prepared for qst  ar


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