washington dc area - public safety radio systems

mutual aid nets

851.?3625? - pmars - police mutual aid - dispatcher to dispatcher

154.295 - maybe - fire dispatcher to fire dispatcher

462.40 - wash dc hospitals - maybe old

RINS - 6 conventional 800 mhz repeater pairs for interops in the DC
area - unknown if ever used - unknown who controls them or how used

159.15 + 167.25 - DC IO 1 and 2 - interops in DC area - dispatcher to
dispatcher - more federal LE agencies and fewer local PD agencies than
PMARS

there was an old fema net for the washington metro area - maybe called
Channel G or something like that - maybe was 167.8875 or something
between 162 mhz and 174 mhz

there might be a newer fema net - unknown users

interops - vhf and uhf and 700 and 800 - shared nationwide

39.54 - maybe virginia police statewide net - maybe old

local government - police and fire etc - nearly everyone is on 800 mhz
trs - wash dc + arlington VA + alexandria VA + fairfax county va +
montgomery county md + prince george's County md + more

military bases - 380 mhz trs - but fort myer fd might be on the
alexandria va trs

federal blds and sites - either vhf or uhf

white house - vhf highband non trs

capitol pd - vhf trs

us park police - the mall etc - vhf highband non trs

hotels and office blds - mostly uhf - some of the larger venues have trs

us military troops - vhf low band plus uhf portable radios

virginia state police and state forestry use a vhf highband trs

maryland state police are moving from 39 mhz to a 700 TRS

medevac helos use a mishmash of channels

metro airports - 800 trs

metro transit - 800 trs + vhf highband

bottom line - when FirstNet (cellphones) takes over public safety
comms - millions of radio techs will lose their jobs

the craziest things - no selective calling on the mutual aid channels
+ no dedicated air to ground channels for police or fire or maybe even
medevac - unless they might use the new 700 mhz a/g channels - no
travel channels or unknown travel channels

day to day - most agencies use their agency channels day in and day
out - some fire units commonly use mutual aid channels when going into
nearby areas - but probably none of the radios are set up to cover
every trs in all of MD and VA - therefore the would be forced to use
the Utac and Itacs as travel channels (in theory) - (in reality they
would use their cellphones - or try to)

the bottom lines for all of this are not to hard to figure out - day
to day - have portable to dispatcher coverage everywhere in the home
city or home county - in adjacent areas - switch to adjacent TRS - for
long distance travel it would be nice to always have mobile to
dispatcher coverage at a minimum

how many sat phones do they have? does anyone keep track?

what radios do fbi use these days?