ITAC/NPSPAC Help Wanted

Status
Not open for further replies.

K9GTJ

Member
Joined
May 20, 2006
Messages
615
Location
Kokomo, IN
Can someone tell me more about these freqencies and how they relate to the system I monitor? http://www.radioreference.com/modules.php?name=RR&sid=952

Which frequencies do I need to program in the scanner?

800 MHz NPSPAC channels are frequently used on this system:

866.0125 821.0125 R 156.7 PL ICALL/NPSPAC1 800 MHz Calling

866.5125 821.5125 R 156.7 PL ITAC1/NPSPAC2 800 MHz Tactical

867.0125 822.0125 R 156.7 PL ITAC2/NPSPAC3 800 MHz Tactical

867.5125 822.5125 R 156.7 PL ITAC3/NPSPAC4 800 MHz Tactical

868.0125 823.0125 R 156.7 PL ITAC4/NPSPAC5 800 MHz Tactical
 

K9GTJ

Member
Joined
May 20, 2006
Messages
615
Location
Kokomo, IN
What makes them diffferent than I-CALL? I have I-CALL selected on the system with my scanner. (Channel #1 says I-CALL in the description which confuses me.)
 

ocguard

Member
Premium Subscriber
Joined
Nov 9, 2002
Messages
1,264
Location
PA/MD
There is really no difference. Since the inception of these nationwide interop channels, they have gone through about a half a dozen names. NPSPAC, I-Tac, I-Call, 8-Tac, 8-Call, so in and so forth.

I-Call or 8-Call is supposed to be used for hailing, or "calling". That is, either different municipalities calling one another, or a field unit calling a dispatch center to request an I-Tac channel for use.

I-Tac or 8-Tac channels are used for on-scene or tactical communication. The may be used in repeater mode or in simplex mode. When in simplex mode, you may hear or see them referred to as I-Tac1D or 8-Tac1D, the "D" indicates Direct mode. Regardless, you should only need to monitor the repeater output frequency (the higher one of each pair).

There are also now V-Tac, U-Tac, and 7-Tac channels for use in areas that are using VHF, UHF, or 700mhz systems respectively.
http://wiki.radioreference.com/index.php/Common_Public_Safety#Interoperability

Note on this Wiki page that the 8-Tac frequencies WILL CHANGE after 800mhz rebanding is through!
 
Last edited:

car2back

Member
Joined
Dec 19, 2004
Messages
3,021
Location
Tulsa, OK
kokomo1 said:
What makes them diffferent than I-CALL? I have I-CALL selected on the system with my scanner. (Channel #1 says I-CALL in the description which confuses me.)
I think you're confusing private calls with the Icall NPSPAC channel

Private calls or I-Calls are direct communications between 2 users on a trunked system instead of all users on a specific talk group.

"I-Call" on the convetional NPSPAC 800mhz freqs is the main channel for calling other units or agencies on. It's like the channel 19 of NPSAC :wink:

As to which ones to scan, I have noticed in my area (Tulsa metro) the only NPSPAC repeater that is always on is the I-call (866.0125) channel. The others are activated as needed.
 
Last edited:

DaveIN

Founders Curmudgen
Database Admin
Joined
Jan 5, 2003
Messages
6,514
Location
West Michigan
In your case Howard county can use these frequencies to talk to state units or nearby county agencies not able to use the EDACS system.
 
Status
Not open for further replies.
Top