Difference between revisions of "City of Cambridge"

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(Update, deleted outdated information.)
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<font size="+2"><b><u>City of Cambridge</u></b></font><br><br>
 
<font size="+2"><b><u>City of Cambridge</u></b></font><br><br>
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*Cambridge is gradually moving off it's 800mhz Motorola Type 2 trunking system.
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*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.
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*Sys ID: bb39
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*Sys ID: D14
 
*Some talk groups are simulcast to conventional frequencies
 
*Some talk groups are simulcast to conventional frequencies
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*Cambridge has begun operating almost exclusively on the new P25 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. Very few P-25 talk groups are now patched to the analog system at present, December 24, 2013. And as usual any positive input will be welcome.
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*Some talk groups may associate with the [[Massachusetts State Police Project 25#700Mhz Metro Boston Overlay System (Tower ID: 002-002)|700 Megahertz Boston Overlay]]
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*Some of the P-25 talk groups may associate with the [[Massachusetts State Police Project 25#700Mhz Metro Boston Overlay System (Tower ID: 002-002)|700 Megahertz Boston Overlay]]
 
  
 
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<br><br>
  
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== '''Analog System Frequencies''' ==
 
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The Analog system has been phased out (early 2014) and all activity has moved to the P25 System
 
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{{prettytable}}
 
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|- align="center" style="background:silver;"
 
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|'''Frequency'''||'''Use'''||Verified
 
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|- align="center"
 
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|853.7375||Voice / '''Control Channel'''||2012.09.01 N1BHH
 
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|- align="center"
 
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|856.3625||Voice||2012.11.14 N1BHH
 
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|- align="center"
 
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|856.7875||Voice||2012.05.18
 
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|- align="center"
 
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|'''857.7875'''||Voice / '''Control Channel'''||2012.07.31
 
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|- align="center"
 
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|'''858.7875'''||Voice / '''Control Channel'''||2012.07.30
 
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|- align="center"
 
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|'''859.7875'''||Voice / '''Control Channel'''||2012.06.16
 
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|- align="center"
 
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|'''860.7875'''||Voice / '''Control Channel'''||2014.10.05 ecps92
 
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|- align="center"
 
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|866.3250||Voice||2012.01.19
 
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|- align="center"
 
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|867.3000||Voice||2012.01.19
 
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|- align="center"
 
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|867.6875||Voice / CW ID||2012.01.19
 
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|- align="center"
 
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|868.7875||Voice||2012.01.19
 
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|}
 
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<br> <br>
 
  
 
== '''P-25 System Frequencies''' ==
 
== '''P-25 System Frequencies''' ==

Revision as of 19:28, 2 May 2016

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

Frequency Use Verified
856.7875 Control Channel & Voice 2015.09.23 N1BHH
857.2875 Control Channel & Voice 2016.02.09 N1BHH
859.7875 Control Channel 2013.03.02 jrm3607
851.1250 Voice 2014.09.07 N1BHH
851.3250 Voice 2012.11.07 CW115
851.6250 Voice 2014.09.07 N1BHH
852.3000 Voice 2016.02.09 N1BHH
852.6875 Voice 2016.02.09 N1BHH
853.7875 Voice 2014.09.07 N1BHH
856.3625 Voice 2015.04.20 ecps92



Police Talkgroups

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


Fire Talkgroups

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


E.M.S. Talkgroups

  • 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

Public Safety Shared Talkgroups

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

Municipal Talkgroups

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


To Be Identified Talkgroups

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



Conventional Channels

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



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