[FedCom] 413.7 - NYC area // ZEBRA c/s

[Dennis]

Let me ask everyone just what I might be hearing on 413.7, 
I believe USPS, with the simple reporting in of similar trfc 
by many units, consisting of a phonetic letter followed by 
5, and just occasionally, 4 numbers. An example: 

TANGO 23 412
UTAH 76 136
QUINCY 76 62
DELTA 76 220
SAM 23 151

I'm thinking maybe USPS trucks are reporting in with mileage 
put on, or pieces of mail delivered, or something such as this. 

These five examples above, BTW, are actual ones heard yesterday, 
so the numbers might be more accurately analyzed. I see 2 prefixes 
of 23 and 3 prefixes of 76, for example, so that's a start. The 2nd 
groups of numbers, however, vary widely, some much larger than 
others. 

I also heard this just once yesterday on 415.05, but I get other trfc, 
I believe more law enforcement-related, on that 2nd frequency, which 
I believe is part of a trunksystem as well. Yesterday as well, I caught 
____ 97 calling ZEBRA HQ's on 415.05, but nothing further after that. 

The ZEBRA callsign rings a bell somehow from the distant past as a 
callsign for me, but I have no specific recollection. 

Logs from the day (Thursday Oct 5th) to follow in a separate post...

Dennis
suburbs of NYC