LOPS - talkgroups on the State 800 Mhz analog TRS - partial / sporadic
coverage in western Massachusetts - street and road coverage in
eastern Mass - probably very little inbuilding coverage
800 Mhz Itac freqs - moving from 866.0125, 866.5125, 867.0125,
867.5125, & 868.0125 to 851 852 853 Mhz - theoretically, 851.0125 is
the calling channel ("I-Call / Internation Call = USA & Canada), and
all of the repeaters on this channel are disabled until needed -
coverage is probably limited to street coverage with only 1 Tac
channel available per county or district
453 Mhz UTac freqs - plus one UCall freq - IIRC this is 4 repeater
pairs - apparently there are no repeaters on the air yet for these
channels - adjacent channel users have to convert to narrowband or
move to avoid interfering with these freqs - UCall will probably
require that all repeaters be disabled until needed (unless a full
synchronized simulcast system is implemented)
150 Mhz VTac freqs - these are 5 new non repeated channels
Federal mutual aid freqs - there are also repeater pairs at 410 Mhz
ish and 170 Mhz ish for federal mutual aid - I forget if the locals
can use these freqs - maybe only if a federal agency is responding to
an incident
Legacy mutual aid channels - Police - typically 1 or 2 repeater pairs
at UHF per county - Fire - typically 1 or 2 repeater pairs at UHF per
county - EMS - nationwide 155.34, and 463 Mhz has 10 freq pairs -
inbuilding coverage is probably never guaranteed for these freqs
Overall - in building coverage is pretty much non existant for mutual
aid channels
Overall - there seems to be no consistent pattern of usage - sometimes
all mutual aid comms is done via home channels - sometimes it is done
on legacy countywide channels - sometimes it is not done at all -
sometimes it is done via NEXTELs - sometimes it is done dispatcher to
dispatcher via radio - sometimes it is done dispatcher to dispatcher
via telephone - commonly mutual aid comms are accomplished by
switching to the adjoining towns home channel
Overly overall - if the emergency is not too large, it can be
reasonably be handled by the existing systems and procedures
--
<http://groups.google.com/group/menotomy02474/browse_thread/thread/ea104aa8746404b2#>
Genocide in the 20th Century
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