New Chicago OEMC Public Safety - 800 MHz P25

[werinshades]

ALL CFD Companies (Fire/EMS) are utilizing the FD800/EMS800 Zones "for the day", so might be a temporary thing. This could prove tricky at the scene of a working fire when the Battalion Chief doesn't have scanning capabilities while on the 800 Zones, and can't monitor Fireground and Main or Englewood. No "drivers" are assigned to Battalion Chiefs, but a Command Van is (2-7-x) dispatched. Some of the newer apparatus's do have mobile radios with the FD800/EMS800 Zone (APX8500's?), but most will be using the portable radios (APX8000's).

 

[jpm]

coming in great on the apx no misses like NWCD fire on the APX.

 

[werinshades]

coming in great on the apx no misses like NWCD fire on the APX.

Yes...Site-1 is the simulcast site, so a little more range.

Companies are being asked to switch back to test the P25 Conventional UHF, then switching back to the 800 Zone, so this is probably temporary.

 

[werinshades]

Yes...Site-1 is the simulcast site, so a little more range.

Companies are being asked to switch back to test the P25 Conventional UHF, then switching back to the 800 Zone, so this is probably temporary.

Englewood companies back on the P25 UHF Conventional system.

**Radio Shop corrected many of the erroneous Radio ID's at least. Some of the portables were way off**

 

[jpm]

Gladthat I pick this up very good at my location can't wait til the final build out with firegrounds etc.

 

[Chicago2210]

Are the CFD talk groups phase I or phase II?

 

[werinshades]

Are the CFD talk groups phase I or phase II?

Yes, the talkgroups previously mentioned have been "self-identified" over the past couple weeks...1021,1022,1023,1024..all P25/Phase 1 non-encrypted. 1010,1011,1014..P25/Phase 2 Encrypted no confirmation, but based on Radio ID's..1010 is Command Channel, 1011 is either JHAT/Special Ops/ Haz Mat Channel? Unknown on 1014 as of yet.

Zones are identified as "Fire 800/EMS 800". Unknown on migration date yet.

Hopefully, this helps.

 

[Chicago2210]

Hopefully, this helps.

Thanks, sounds like fire main is back on the UHF conventional channel

 

[werinshades]

Thanks, sounds like fire main is back on the UHF conventional channel

Yes, chronic interference issue, so they'll be back and forth I assume, until they decide enough is enough.

 

[werinshades]

All Fire, EMS-South today.

 

[Chicago2210]

All fire and EMS south what?

 

[werinshades]

All fire and EMS south what?

Yes, chronic interference issue, so they'll be back and forth I assume, until they decide enough is enough.

This..

 

[werinshades]

I did see a couple key-ups on TGID 1019, but couldn't determine who it was and whether or not it's encrypted. It would appear, CFD has a block of Talkgroups between 1010-1024.

As previously noted, TGID's 1010, 1011, 1014 have been noted as encrypted. Based on observations of Radio ID's, my best guess still remains: 1010 (Command Personnel), 1011 (HazMat/JHAT), 1014 and now 1019 is unknown.

I was told of a CFD memo dated May 6th that the FD800/EMS800 Zones are "back-up" at this time due to atmospheric interference and/or console issues. No other info at this time, but will update if I hear more.

My suggestion is to keep the 800 system programmed and a couple key strokes away, as it's apparent the interference is becoming very problematic. All this Zone changing will result in companies not on the right channel, but fortunately the supervisors are monitoring it to direct everyone to the right spot when companies return to the P25 conventional Zones.

 

[Chicago2210]

And they thought they had problems on the VHF analog system! This system is about 10 years old and already having issues

 

[RoninJoliet]

I can monitor the 853.80 CC system here in Joliet with two bars on my 996P2....Hearing the three FD 10xx TGs very well so I wonder where would there southern most tower be located to be this lucky....I have not seen the TG1019.......TY PS: The scanner is hooked to a CM5094a with LM400 coax

 

[werinshades]

I can monitor the 853.80 CC system here in Joliet with two bars on my 996P2....Hearing the three FD 10xx TGs very well so I wonder where would there southern most tower be located to be this lucky....I have not seen the TG1019.......TY PS: The scanner is hooked to a CM5094a with LM400 coax

I like the layout of the new database, this gives you the locations of the sites:

Chicago OEMC Public Safety - 800 MHz P25 Site: Citywide Simulcast

Chicago OEMC Public Safety - 800 MHz P25 Site: Citywide Simulcast Details

www.radioreference.com

 

[jpm]

Very clear on the APX radios. NW burbs.

 

[werinshades]

And they thought they had problems on the VHF analog system! This system is about 10 years old and already having issues

It's been around longer than that, but the issue they're having appears to be some reoccurring interference. The VHF system was rogue radios, which haven't been a problem.

 

[werinshades]

I've also heard traffic on TGID 7002 (P25/Phase2) in the clear with RID's in the 705xxx range. The conversations seemed to revolve around housing issues, so possibly the Department of Human Resources?

Self-identified as CHA-1 this morning. RID testing was 702xxxx.

 

[Chicago2210]

It's been around longer than that, but the issue they're having appears to be some reoccurring interference. The VHF system was rogue radios, which haven't been a problem.

Yes it's only been in use by CFD for about 10 years