LTR "multi-net" system question

[kc8lin]

Just wondering if anyone here has information regarding EF-Johnsons newer
LTR trunking system known as "multi-net". This system I believe supports
multi sites and type II now supports APCO. I am not sure if the system I
am trying to monitor is "multi-net" type one or two. My best guess is type
one. I know that there are no current scanner out on the market that will d
ecode this type of LTR. This type of system is very easy to regnise because
when there is not radio traffic on it there will be a short 2 second burst of
data. It follows through the list of frequencies for this service and just sounds
like a squelch burst on most radios. Just wondering if anyone has any experience or
information on this type of system so I can pick their brain!

Thanks
Jason KC8LIN
Stark/Summit County
University of Akron student Akron, Ohio

 

[pro92b]

At http://www.efjohnson.com/downloadmanuals.asp there is a comprehensive MultiNet application note along with system manager manuals etc.

 

[EricCottrell]

Hello,

I have seen Multi-Net systems that have a burst every 10 seconds like Regular LTR.

Another system that has a 2 second burst is Passport. I have seen it range from 1 second to 10 seconds. It uses LTR like signalling and was developed by Trident Microsystems.

Both Multi-Net and Passport can not be trunktracked by a scanner. It is possible to decode both systems and Regular LTR using the LTRDump/LTRTrunk program.

73 Eric