[amsat-bb] Seeking high power VHF stations for Leonids Meteor Shower

[Robert Bruninga]

We are seeking Amsat operators with beams and high power on VHF to
participate in this coming Monday night's Leonids Meteor Shower APRS test.

So far, no one on the APRS list seems to have any power and beams to be a
transmitting station.  If you have high power and a beam, you can help.
Here is the pitch:

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With the Leonids Meteor shower coming up after Midnight next Monday (Tues
AM), maybe its time to have some fun with APRS again!

Last time we did this was 1998 and over 48 MS packets were seen over 500 to
600 miles on the APRS channel..  Here is the report:
http://aprs.org/APRS-docs/LEONIDS.TXT

THis year I propose not a free-for-all but just a few HIGH power stations
transmitting and everyone else in the country checks the next morning to
see what they copied..  Best TX stations are those with several
hundred watts and a beam.  Even one such station would be a great test,
because on 144.39 we would have maybe 10,000 full time normal APRS stations
as receivers. In retirement, i dont have the power nor the beam

But it would go something like this.  Up to 15 TX stations around the
country would TX a continuous keydown string of short packets for 15
seconds every minute. Xmission is on the 144.39 national APRS channel to
maximize the number of people that might copy one.  Transmissions begin at
midnight local time and runs to 6 AM only to minimize any interference to
other operators. We all wake up the next morning to see what we got.  Yes,
this will burn the local channel within about 20 miles of the TX station.
but since the packets have no path, they can only be heard in simplex range
of a transmitter and everyone is sleeping anyway.

But if a meteor happens, someone within about 400 to 600 miles is likely
capture it.  Remember, the APRS channel load in most areas is only a packet
every 3 or 4 seconds and that gives everyone a receive window of 75% of the
total slots available.  And even if the TX stations are not even
synchronized it doesnt matter because a given meteor path only exists for a
fraction of a second and only between two fixed 100 mile or so areas for
that instant.

The original APRSdos had Meteor Mode built in and did the timing and
transmissions.  WIth a very short packet and  short TXD a single key down
could transmit about 30 packets during each 15 second period.

Any high power TX volunteeers?

Oh, here is the original page:  http://aprs.org/meteors.html
Look about 75% down the page for the map of that 2m experiment.

IGNORE the majority of that page.  It was showing how an emergency response
station for example could go to an area of total devastation with all APRS
wiped out, and with enough power and persistence could likely get out an
emergency email message.  This one time, test is completely different.

Bob, WB4APR