Trunking in Ward County (minot) area?

[bct15xuser]

I'm learning alot with this BCT15X scanner. But the hole trunking thing still stumps me a little. Just so I am not waisting my time with trying to figure out how to use trunking system is there even a need to have trunking ability in the Ward County and Minot area? If there is what freq. are they? Thanks for every ones help so far.

 

[NDRADIONUT]

FCC Licenses and Scanner Frequencies for Ward County, North Dakota (ND)

LOOK AT YG YX

 

[ASTRO2001]

Trunking/ Conventional

Ok there is 2 different system Trunking and conventional about 99.9 % of North Dakota uses conventional. Trunking is used like in Fort Worth Texas, Minneapolis MN big citys
Conventional uses one frequency at a time so if Minot PD officer talks on 155.7900 no one else can talk on that frequency until they stop talking



On trunking uses a Computer Control Frequency and talkgroups so frequency for example 855.1000 is the Control frequency and uses talkgroups and when I was in Fort Worth Texas. There was 14 different talkgroups were talking at one time and uses on frequency

TALK GROUP CHANNEL
1000 FWPD N
1020 FWPD S
1040 FWPD E
1060 FWPD W
1080 FWPD C
1100 FWPD TRAFFIC
2000 FWFD DIS
See all these talkgoups they can be talk on and use one frequency. I sent you a link



Trunked radio system - Wikipedia, the free encyclopedia

 

[N0TKG]

At this time, in Minot only MPD is using digital. The Sheriff's Dept and the fire departments are still analog. I'm not quite sure what State Radio is doing. I do know that they use analog to page out the fire departments and ambulances in the outlying areas.

Depending on where you are located and what you are using for an antenna you might want to play around with McLean County frequencies. You can probably catch them.

 

[gr8rcall]

All credit for this goes to DickH (Note. You should still read the information below this, because this is a condensed explanation)
Motorola Trunking: The object of trunking is to allow many users to share a relatively few frequencies. A trunking system is controlled by a computer. Information (data) is exchanged between the system radios and the computer on a control channel, sometimes called a data channel. It sounds like a strong buzz. A large system can have up to 28 freqs., 4 of which may be used as control channels. The control channel may be changed once a day or as often as the programmer decides. Some scanners need only the control channels to track an entire system. Just put in the 4 Control Channels.
Each group of users (Fire, Police, etc.) is assigned TALK GROUPS. In a Motorola Type II system, the most common type, TGs are usually in 32 number steps starting with 16 and going up to 65536; 16, 48, 80 --- 4656, 4688, 4720 --- 28944, 28976, etc. System radios can have more than 100 TGs programmed into them.
How it works When a user pushes the talk button on his radio, data is sent to the computer. The computer chooses an unused freq. and sends that data to all the radios that are set to the TG of the originating unit. This all happens in a fraction of a second and it happens EVERY TIME a radio is used.
EXAMPLE:
Fire Dispatch calling Engine 4 (TG 4528 on 856.7125)
Engine 4 answering Dispatch (TG 4528 on 852.2625)
Respond to 73 Elm Street (TG 4528 on 855.9625)
Engine 4 responding (TG 4528 on 851.6375)

If you have entered TG 4528 into your scanner, it will read the control channel data and change your scanner freqs. to follow the conversation on TG 4528. .


Here's some links about trunking:

Trunking Basics - The RadioReference Wiki

This is a more complicated explanation:
Trunked Radio Systems - The RadioReference Wiki

Sincerely,
Gr8rcall

 

[N0TKG]

You are already hearing MPD's open channel, so there is no need to worry about trunking. Central Dispatch has some very interesting equipment but in reality they like to keep things simple.

 

[bct15xuser]

Cool, Thanks everyone for your help. This helps a lot. You all are very knowledgeable.