NYPD CW4 now P25

blaze · Dec 6, 2013

NYPD's first P25 system is now on the air. Citywide-4 is now all P25, to be (mostly) encrypted.

Expect other channels to follow, eventually.

62Truck · Dec 6, 2013

What NAC are they using?

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blaze · Dec 6, 2013

KC2OBW said:
What NAC are they using?

EF0

ff026 · Dec 7, 2013

I would not expect other channels to follow as there are not many p25 capable radios in the field.

blaze · Dec 7, 2013

ff026 said:
I would not expect other channels to follow as there are not many p25 capable radios in the field.

Yes, this is for various special commands, not precinct zone channels.

one11sgt · Dec 7, 2013

CW 4 has had the ability to turn encryption on and off for a long time. It isnt used by 99% of the dept and isnt even programmed in the radios of patrol officers. It was initially for the brass to communicate before cell phones where prevalent. Its just another waste of a frequency just like Detective 1 and 2, SPIN, IAB and OCCB 1 and 2. None of these are used very much anymore since cell phones.

tbendick · Dec 7, 2013

If i remember correctly they has p25 on citywide 4 in the past.
I am pretty sure if was Back early 2000's they had zone 1 going over cw4 in digital.

w2lie · Dec 8, 2013

tbendick said:
If i remember correctly they has p25 on citywide 4 in the past.
I am pretty sure if was Back early 2000's they had zone 1 going over cw4 in digital.

I thought the same things when I saw this thread.

blaze · Dec 8, 2013

I believe the previous systems were a mix of analog and SecureNet; the new CW4, on the other hand is, all P25 (which is the first P25 infrastructure for NYPD).

ff026 · Dec 8, 2013

No it's been P25 for a few years. It is not heavily used i.e. As stated it's not in patrol radios it's usually in executives radios many of which are not carrying a P25 radio.

blaze · Dec 8, 2013

ff026 said:
No it's been P25 for a few years. It is not heavily used i.e. As stated it's not in patrol radios it's usually in executives radios many of which are not carrying a P25 radio.

I assure you you're wrong about that.

ff026 · Dec 8, 2013

No I am not I have notes from early 2003 that list it as p25 it's been programmed in my XTS for that long. As far as p25 radios, ESU and some traffic units have the SSE transit now has the APX. That's about the lot of p25 radios. Captains and above carry the small Vertex which is not p25.

tbendick · Dec 8, 2013

Early 2003 sounds about right. I was still working in lower Manhattan. I know it wasn't encryption I was hearing , because then I would never been able to hear zone 1 over cw4.

blaze · Dec 8, 2013

Bunch of p25 traffic right now....

ff026 · Dec 8, 2013

Ok. Is it a multicast from another division? Are you listening to it on something that can be decoded?

blaze · Dec 8, 2013

ff026 said:
Ok. Is it a multicast from another division? Are you listening to it on something that can be decoded?

Doesn't seem to be. Mostly encrypted (AES) with the occasional "10-4" in the clear.

newsnick175 · Dec 17, 2013

Broadcasting "tone" today at around 10 am. P25/EF0

blaze · Dec 25, 2013

Yesterday (the 24th) was another busy day for CW4. Radio system testing in the morning, then some surveillance-type activity in the afternoon/evening, where they eventually went encrypted.

newsnick175 · Dec 26, 2013

Encryption "heard" today [26th] 15:50 hrs.

NYPD CW4 now P25

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