Boston FD radio history - a recap - again

Boston FD radio history - a recap - again

in the beginning all radios were on 33.74 - maybe 1935 to 1952

(I do have some earlier freqs - cant remember off top of head right now)

1952 - channel 2 added - 153.89 - just some chiefs and the dispatcher

channel 4 added at some point - 154.265

1972 ish - mobiles on 33.74 ch1 - portables for company officers on ch
2 153.89 - dispatcher would relay messages from 153.89 to 33.74 - such
as - 'Engine 9 charge your line' - or 'allout box 7122" - probably the
dispatcher was simulcasting the box alarms on Ch1 and Ch2 (just the
voice part - not the beeps - there were never any boxes beeped on
153.89 nor 154.265)

1975 ish - all onduty members got a portable radio

1980 ish - all units got UHF mobiles and UHF portables - dispatchers
got UHF repeaters - 33.74 did simulcast traffic from 483.1625R for
several years - 153.89 maybe was used as the T radio system for
several years - just portables talking to dispatchers from inside
subway stations - 153.65 had data for high pressure system - maybe
153.89 had it for a while also - 453.65 started to be used for station
alerting (called Ch 5)

1980 ish - home channels for all portables was Channel 2 (483.1875R) -
home channel for all mobiles was Ch 1 (483.1625R) - this was an
operational holdover from the VHF days - dispatchers would still relay
many messages from ch1 to ch2 and vice versa

2000 ish - home channels for portables changed from Ch2 to Ch1

2015 ish - upper commanders got 700T radios - admin type people also -
its all patched to the UHF channels

and here we are