[aprssig] Satellite positions: User Statistics
bruninga at usna.edu
Sun Oct 16 07:46:17 CDT 2011
> I'm not sure where your 40,000 APRS users in
> the field came from, In the past 2 hours there
> were 18,342 unique callsign-SSIDs active,
WHAT??? Completely Meaningless Statistic. Taken at 7 PM on a saturday? Surely you understand the use of APRS mobile radios is not very well represented by a 2 hour snapshot at such a time.
> but 4,811 were objects. 6,047 stations indicated
> that they were messaging capable... of which
> 1,155 were Kenwood radios (534 D710s, 449 D700s,
> 89 D72s, and 83 D7s) where some unknowable
> percentage of the D700/D710 users have speech
If there were over 1000 APRS mobile radios (also include the Yaesu FTM-350) at 7 PM on a saturday, then that's pretty good. Most HT's are NEVER in use, until they are... And then there is actually a HUMAN there, playing APRS radio, and maybe asking for satellites in view. Your target user.
Also the target user is the mobile enroute to or from work. He sends out a query to ISS and then his radio will capture all he needs for the next pass. If it is more than a few minues away, he will then have it there in his MESSAGE list to remember when to comeout and do the pass.
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