City of Cambridge

City of Cambridge

Cambridge is operating exclusively on the new P-25 trunk system and below you will find this systems frequencies. Also since this is a work in progress we will also show the few confirmed P-25 talk groups that have been discovered. And as usual any positive input will be welcome.
Sys ID: D14
Some talk groups are simulcast to conventional frequencies
Some talk groups may associate with the 700 Megahertz Boston Overlay

P-25 System Frequencies

Talkgroup	P-25	Alpha Tag	Confirmation/ReConfirmations
17472		Dispatch??
17680		Training
17744	1109	Ch. 1 Dispatch Patched to 470.3125	2016.04.12 N1BHH
17776	1111	Ch. 2: Info	2016.04.11 N1BHH
17808	1113	Ch. 3 Patch BAPERN 3 470.7875 MHz. PL-131.8	2014.01.14 N1BHH
17808	3139	Ch. 3 Patch BAPERN 3 via MSP Zone 1	2014.01.14 N1BHH
17840	1115	Ch. 4 Patch BAPERN Central 470.9875 MHz. D654	2014.01.14 N1BHH
17840	3141	Ch. 4 Patch BAPERN Central via MSP Zone 1	2014.01.14 N1BHH
17872	1117	Ch. 5 Car to Car	2014.09.07 N1BHH
16976	1061	Ch. 6 : Interagency	2016.04.11 N1BHH
17936		Admin	2012.11.14 N1BHH
17968		Narcotics
17904	1119	Ch. 8 Supervisors	2013.07.26 N1BHH
18128	1133	Ch. 12	2013.07.16 N1BHH
18160	1135	Ch. 11	2014.01.14 N1BHH
18192	1137	Ch. 11 Traffic	2014.09.07 N1BHH
17360	1085	Ch. 9 Special OPS 1	2016.04.11 N1BHH
17392	1087	Special OPS 2	2014.09.07 N1BHH
18224	1139	Special OPS 3	2012.12.03 N1BHH
18960	1185	CPD Emergency (All Agency Call For Police)	2012.11.03 CW115
19024	1189	M.I.T. Police Patched to 852.4375 NAC03B	2014.11.05 CW115
19184	1199	Ch. 16 Patched to 470.1250 PL-127.3 and 851.8000 D155	2014.05.16 CW115
19568	1223	Cambridgeside Galleria Security	2014.09.07 N1BHH
20592	1287	Cambridge Hospital Security	2012.11.15 N1BHH

Talkgroup	P-25	Use	Confirmation/ReConfirmations
16816	1051	F-1: Dispatch	2016.04.12 N1BHH
16848	1053	Ch.2	2014.05.16 N1BHH
16880	1055	F-3: Patch : MetroFire Central 482.0250 MHz. PL-123.0	2016.04.12 N1BHH
16912	1057	F-4: Patch : MetroFire Red 483.3125 MHz. PL-131.8	2016.04.12 N1BHH
16944	1059	F-5: EMS : Patch 472.5375 PL-146.2	2014.05.18 CW115 + N1BHH
16976	1061	F-6: Interagency	2016.04.11 N1BHH
*9584		F-7: Fire Wide Area - on Zone 5 Massachusetts State Police	2013.12.30 N1BHH
*20272		F-7: Fire Wide Area - on Zone 1 Massachusetts State Police	2013.12.30 ecps92
17040	1065	F-8: Administration	2013.06.11 N1BHH
17072	1067	Fire Investigators	2012.11.15 N1BHH
17104	1069	MetroFire White 483.2875 MHz. PL-131.8. Same analog talk group is patched to MSP Zone 1	2014.05.16 N1BHH
17360		F-9: SOPS 1	2012.07.12 ecps92 + N1BHH
17200		F-13 Training	2012.12.28 N1BHH
17232	1077	F-14: Fireground Patched to Conventional 855.5625	2014.05.18 N1BHH
17264	1079	F-16: Fireground Patched to Conventional 854.4875	2014.05.18 ecps92
17680	1105	Tech Services (Maintenance, IT, Radio Shop)	2016.04.11 N1BHH
17712	1107	Tech Services (Maintenance, IT, Radio Shop)	2014.05.16 N1BHH
19792		F-15
20048	1253	Fire Alarm Maintenance	2014.05.16 N1BHH
21040		Fire Announce talk group, Has been heard on State Zone 1	2013.06.11 N1BHH
21232	1327	Fire Station Alert	2016.04.12 N1BHH

Several neighboring cities Fire Department ambulances have access to the EMS-Hospital talk groups

Talkgroup	P-25	Alpha Tag	Confirmation/ReConfirmation
19088	1193	MIT EMS	2013.11.05 jrm3607
19632	1227	Professional Ambulance, Patched to 472.8625 N225	2014.09.07 N1BHH + CW115
	1229	EMS Special Ops	2014.09.07 N1BHH
	1231	EMS Ops 1	2014.09.07 N1BHH
	1233	EMS Ops 2	2014.09.07 N1BHH
19824	1239	Professional Ambulance/Emerson Paramedics (heard sparingly on Cambridge system)	2013.05.13 N1BHH
20816	1301	Cambridge Hospital	2013.12.24 N1BHH
20848	1303	Mt. Auburn Hospital	2014.09.07 N1BHH
20880	1305	Somerville Hospital	2013.11.05 N1BHH

P-25 Talkgroup	Alpha Tag	Confirmation/ReConfirmations
1085	SOPS 1	2016.04.11 N1BHH
1087	SOPS 2	2014.09.07 N1BHH
1139	SOPS 3	2014.04.21 N1BHH
1141	SOPS 4	2014.09.07 N1BHH
1143	TACTICAL 5	2014.09.07 ecps92 + N1BHH
1063	PS COMMAND	2012.07.12 ecps92 + N1BHH
1083	PS PATCH	2012.12.06 N1BHH

Talkgroup	P-25	Alpha Tag	Confirmation/ReConfirmations
16400	1025	DPW F-1	2013.11.21 N1BHH
16432	1027	DPW F-2	2012.12.30 N1BHH
16464	1029	DPW F-3	2013.02.08 N1BHH
16496	1031	DPW F-4	2013.02.08 N1BHH
16528	1033	DPW F-5	2013.11.21 N1BHH
16560		DPW F-6
16592		DPW F-7
	1041	Cambridge Housing Authority	2012.11.11 CW115
16688		Unknown
16720	1045	Municipal Golf	2012.11.11 CW 115
18416	1151	Traffic Parking and Transportation Department	2013.11.21 N1BHH & CW115
18448	1153	Traffic Parking and Transportation Department	2013.11.21 N1BHH & CW115
18480	1155	Water/Sewer	2013.11.21 N1BHH
18576	1161	Water Department	2012.11.11 CW115
18608		Municipal Golf Course
18672		Municipal School Buses
18768		Municipal Elder Vans
18800		Emergency Management
18832		School Department Security and Maintenance	2013.11.21 CW115
18896		City Events
19024	1189	MIT Police	2013.11.16 N1BHH
	1195	Testing AVL system MIT area	2014.04.28 N1BHH
19568	1223	Cambridgeside Galleria Security (Maintenance - limited use)	2012.12.03 N1BHH
19856		Animal Commission	2012.11.03 CW115
19920	1245	Cambridge Rindge and Latin High School Security and Maintenance	2013.11.21 CW115
20144		Inspectional Services Department	2012.11.03 CW115
20528	1283	Cambridge Health Alliance Facilities Maintenance	2012.11.15 N1BHH
20688	1293	Cambridge Health Alliance Facilities Maintenance	2012.11.19 CW115 + N1BHH
8336	521	Statewide Tech Chatter, heard on multiple MSP trunk zones	2013.11.20 jrm3607 + N1BHH
36432		Possibly LOCPS 4	2012.12.28 jrm3607 + N1BHH

Talkgroup	P-25	Use	Confirmation/Reconfirmation
17168			2012.12.28 jrm3607
17286			2012.05.16
17584	1099		2013.07.16 N1BHH
17616	1101		2014.01.20 N1BHH
18064			2012.05.16
18864			2012.11.19
19052			2012.11.19
19088			2012.05.16
19152			2012.05.16
19184			2012.05.16
20624	1289		2012.12.16 N1BHH
20912			2012.05.16

Frequency	Type	Tone	Alpha tag	Notes	Confirmation/Re-Confirmation
154.3550		146.2	Camb FD Disp-V	Apparently no longer in use	2013.01.29 N1BHH
471.3125		146.2	Camb FD Disp-U		2016.04.12 N1BHH
470.3125	R	131.8	Cambridge PD	Patched to/from talk group 1109	2016.01.23 N1BHH
470.1250	R	127.3	Cambridge PD (MBHSR)	Patched to/from trunk system PD Ch. 16	2016.04.12 N1BHH
851.8000	R	D155	Ch.16 PD Special Ops	Patched to/from trunk system PD Ch. 16	2016.04.12 N1BHH
855.5625	S	D125	DIRECT 14	Ch. 13 in radio	2012.07.12 ecps92 + N1BHH
855.5625	R	D125	F/G 14		2016.04.12 N1BHH
482.0375	R	141.3	F/G 14 Simulcast	Patched to/from trunk FD Ch. 14	2012.11.03 N1BHH
854.4875	S	D125	DIRECT 16	Ch. 15 in radio	2012.07.12 ecps92 + N1BHH
854.4875	R	D125	F/G 16	Patched to/from trunk FD Ch.16	2016.04.12 N1BHH
482.2875	R	141.3	F/G 16 Simulcast	Patched to/from trunk FD Ch. 16	2016.04.12 N1BHH
482.0500	R	N404		(MBHSR License)	2011.07.11
472.5375	R	146.2	CFD EMS	Patch to/from CFD Ch. 5 EMS talk group	2016.04.12 N1BHH
472.8625	R	N225	Pro Ambulance	Patched to 19632 analog and 1227 P-25	2014.02.06 N1BHH + CW115
472.8625	R	146.2	Pro Ambulance		2015.03.09 N1BHH
484.0875	R	N495	Harvard PD	Sounds like mobiles are encrypted, base in the clear	2015.01.24 N1BHH
484.2625	R	127.3	Harvard PD	Mixed Mode Repeater
484.2625	R	N495	Harvard PD	Mixed Mode Repeater	2014.05.07
463.8500	R	D432	Harvard Security		2016.02.09 N1BHH
852.4375	R	N0B3	M.I.T. Police	Patched with Talk Group 1189	2016.04.12 N1BHH
461.7750	R	131.8	M.I.T. EMS	Moved to the trunk system	2013.11.05