Trunk system question

[Bob_61]

What are system id's and connect tones? How are they relevant if at all to programing trunk systems? Also is ct state police digital apco-25 THE LISTING IN THE DATABASE DOESN'T SEEM TO BE CLEAR ON THIS OR IT IS JUST ME!

 

[awasser1]

the system id's and connect tones arent relative in programming the system. there are people that can explain what they and used for. the system is Motorola Type II SmartZone Omnilink digital. Its should be programmed like Montrola type II trunked. U can either use control channel only or put in every freq. each line is a diff site (location) I dont know what kind of scanner u have but I have a uniden 396t. I put each system and tg's in separate in old days they would be called banks. then when you are moving around the state u can see which control channels u can lock on to and bypass the rest. and then when u go so another area other sites will work. the map gives u an idea of where the sites are located. well dont want to confuse u more . write back if u have more questions

Alec

What are system id's and connect tones? How are they relevant if at all to programing trunk systems? Also is ct state police digital apco-25 THE LISTING IN THE DATABASE DOESN'T SEEM TO BE CLEAR ON THIS OR IT IS JUST ME!

 

[RKG]

SysID is a unique 4-digit hexadecimal number assigned to a system by Motorola. It is used in the outbound data stream to enable subscribers listening to the data to know that they are listening to the system they are associated with. SysID is also a part of every ISW and OSW data word, to preclude collisions between systems.

Connect tone is a variant of PL, which is used to keep up the analog voice channel repeaters, during the course of a channel grant.

 

[Bob_61]

I HAVE A PRO-164 WHICH IS AS YOU KNOW IS NOT DIGITAL. I PROGRAMED THE FREQS. IN FOR $#@^X%^& and giggles AND I SEE THE SYSTEM ID'S COME UP ON THE CONTROL CHANNELS ON THE FIFTH LINE ON THE PRO-164. WELL THANKS FOR THE INFO ANYWAY. SOON I HOPE TO GET A DIGITAL SCANNER SO I CAN LISTEN TO CSP AND OTHER APCO SYSTEMS AGAIN THANXS!!!

 

[Bob_61]

And thank you also rkg for that info!! You guys are a big help out there keep up the good work!!

 

[ecps92]

As a side-note, SYSID might not seem relevant to the scanner user, however it does help ID the System you are listening/locked into.

If you travel, or the Band Opens, you might be suprised what Systems you might get locked onto by accident etc etc Also, just by traveling a few miles you might end up listening to someone else, not who you wanted.

ie: In Mass the MSP and the Local Electric Company [Worcester Cnty area vs Essex/Middlesex Cnty] both use the same CTRL Channels [Two different Systems] FYI

What are system id's and connect tones? How are they relevant if at all to programing trunk systems? Also is ct state police digital apco-25 THE LISTING IN THE DATABASE DOESN'T SEEM TO BE CLEAR ON THIS OR IT IS JUST ME!

 

[N1BHH]

I think the Database is pretty clear what the system is: System Type: Motorola Type II SmartZone Omnilink, System Voice: APCO-25 Common Air Interface Exclusive

 

[Bob_61]

Thank you for your condescending answer to something could have been better answered with a ex·pla·na·tion of the words use to describe the different systems ! Thanx but not wanted Mr. N1BHH

 

[garys]

I think the Database is pretty clear what the system is: System Type: Motorola Type II SmartZone Omnilink, System Voice: APCO-25 Common Air Interface Exclusive

It's clear, but at the same time not clear. Especially someone relatively new to scanning. There have been any number of threads about this and the terminology can be confusing.

In the case of CSP, the system is a Type II (3600 baud) Motorola Smartnet trunk system. Which is pretty much the same as the Mass State Police system except that CSP has chosen to exclusively use digital (P25) audio. Which is different from a true P25 trunk system which uses a 9600 baud control channel and has no option for analog audio.

Since the OP has no digital capability, it's all sort of academic for now. As he notes, the scanner can decode the data channel just fine, but he will not hear any audio as it's digital only.