Difference between revisions of "Baltimore City"

Revision as of 16:55, 13 April 2011

Attention!

Baltimore City is migrating to a new P25 system. Fire units switched on 4/4/2011 and police units switched over on 4/7/2011

Check the Radio Reference Database here for more details

Programming System Frequencies

Using the Pro96 CC Dump monitoring utility, it appears that there is a constant data stream (not the control channel) that hops between system voice frequencies. It may be the fire station signalling data, which constantly interrogates the fire station signalling units to verify connectivity. This stream hops between system frequencies, but never uses any of the four eligible control channel frequencies. Your scanner may momentarily confuse this data signal as the control channel, which could delay your scanner while it searches for and acquires the control channel. For this reason, it is recommended that you only program the four control channel eligible system frequencies into your scanner.

New Baltimore City P25 Police Talkgroups (effective 4/7/2011)

9101 Central District
9102 Southeastern District
9103 Eastern District
9104 Northeast District
9105 Northern District
9106 Northwestern District
9107 Western District
9108 Southwestern District
9109 Southern District
9112 Citywide
9124 Central "C" channel
9125 Southeast "C" channel
9126 Eastern "C" channel
9127 Northeast "C" channel
9128 Northern "C" channel
9129 Northwest "C" channel
9130 Western "C" channel
9131 Southwest "C" channel
9132 Southern "C" channel
9159 School Police?

New Baltimore City P25 Miscellanious Agency Talkgroups

9298 Downtown Partnership Public Safety Guides(?)

New Baltimore City P25 Department of Public Works Talkgroups

9252 DPW Water/Wastewater Bureau (clogged inlet responses heard)
9277 DPW Water/Wastewater Bureau (residential consumer trouble tickets heard)
9274 DPW Street Repairs

@@ Line 4: / Line 4: @@
 Check the Radio Reference Database [http://www.radioreference.com/apps/db/?sid=6906 here] for more details
+== Programming System Frequencies ==
+Using the Pro96 CC Dump monitoring utility, it appears that there is a constant data stream (not the control channel) that hops between system voice frequencies. It may be the fire station signalling data, which constantly interrogates the fire station signalling units to verify connectivity. This stream hops between system frequencies, but never uses any of the four eligible control channel frequencies. Your scanner may momentarily confuse this data signal as the control channel, which could delay your scanner while it searches for and acquires the control channel. For this reason, it is recommended that you only program the four control channel eligible system frequencies into your scanner.
 == New Baltimore City P25 Police Talkgroups (effective 4/7/2011) ==