[aprssig] Fwd: APRS Meteor test (TX list)?
bruninga at usna.edu
Mon Nov 16 10:27:53 EST 2020
The few METEOR-X stations will be transmitting on normal 144.39 from
midnight to about 6 AM tonight
All you have to do is check your heard list tomorrow morning and see if you
On Sun, Nov 15, 2020 at 4:08 PM Tyler Griffiths <tyler.griffiths at gmail.com>
> What frequency should we be listening to?
> Tyler Griffiths
> See where I am:
> On Sun, Nov 15, 2020 at 10:28 AM spam8mybrain via aprssig <
> aprssig at lists.tapr.org> wrote:
>> I'm trying to get YAAC reworked for bursting. As to actually running a
>> beam-antenna transmitter, I was going to climb on the roof to rig it today,
>> but if no one is going to listen, not sure if there's a point in doing so.
>> WA8LMF said he had a turn-key UIview setup.
>> Andrew, KA2DDO
>> -------- Original message --------
>> From: Robert Bruninga <bruninga at usna.edu>
>> Date: 11/15/20 12:02 (GMT-05:00)
>> To: TAPR APRS Mailing List <aprssig at lists.tapr.org>
>> Subject: [aprssig] Fwd: APRS Meteor test (TX list)?
>> Subject: Re: APRS Meteor test (TX list)?
>> To: Marshall-K5QE, Bill Booth <ve3nxk, GEO Badger <w3ab, Andrew Pavlin
>> (YAAC), wa8lmf(UIview)
>> Cc: kd4iz at frawg.org>
>> We have seen only a few volunteer TX stations (mostly from the EME
>>> reflector) and I dont think I have cpaatured anyone from AMSAT or APRS that
>>> have stepped forward,
>> Biggest problem is lack of a turn key TX program for these non APRS
>> volunteers. No one has said they are ready to TX.
>> Maybe a few of you are working on it, but Im not hearing anything. I'm
>> sorry that I am so poor health I cannot organize it better. Just thought I
>> should summarize the feedback I have gotten.
>> The ADDEE's are high power mostly EME stations. Did anyone see anyone
>> else that responded as if they were working on something?
>> If we dont have a turnkey TX program, I guess we can stand down.
>>> To clarify exactly what a high power TX station needs to send is say 30
>>> copies of the APRS grid format in a single burst IE send this to the TNC
>>> every minute:
>>> The TNC will concatenate probably seven to ten of these at a timel into
>>> dense TX packets with only a single TX delay, not 30 delays.
>>> The TNC has UNPROTO set to simply "APRS" no path! And set to CONVErSE..
>>> Adjust the number (30?) till the TX burst lasts 15 seconds each minute.
>>> The result is 30 complete grids in only 200 milliseconds each.
>>> Hopefully short enough so that occasionally one will get bounced somewhere
>>> by the extremely short meteor path bursts at VHF.
>>> Point beam to a high ham population density at least 600 miles away.
>>> Vertical or Horizontal will work.
>>> This will take special software for the 15 TX stations. (METEOR-1
>>> through METEOR-15)
>>> RX stations need nothing special. Any APRS software should capture and
>>> decode and plot a grid report if received overnight. All of this on the
>>> national channel 144.39 from midniight to 6 AM local time
>>> Here is the report form 1998 event
>>> Bob WB4APR
>> aprssig mailing list
>> aprssig at lists.tapr.org
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