Scanning for LTR systems without LCN just worthless?

RedPenguin · #1 (**permalink**) 04-03-2007, 04:16 AM

I was wondering, is it just silly to search for LTR systems since your need the proper LCN order, or is there a way to find out the LCN knowing some of the channels?

Mick · #2 (**permalink**) 04-03-2007, 05:01 AM

Radio Shack's PRO-97 scanner will show the LCN for a frq.

Quote:

Originally Posted by RedPenguin

I was wondering, is it just silly to search for LTR systems since your need the proper LCN order, or is there a way to find out the LCN knowing some of the channels?

rescue161 · #3 (**permalink**) 04-03-2007, 06:43 AM

I have a pro-92 that doesn't even need the LCN, just the frequencies. I use it while hooked to a program called LTRTrunk and it displays the LCN for me so I can program the 396.

captclint · #4 (**permalink**) 04-03-2007, 09:53 AM

Quote:

Originally Posted by RedPenguin

I was wondering, is it just silly to search for LTR systems since your need the proper LCN order, or is there a way to find out the LCN knowing some of the channels?

Once you have the LCN order, all the fun is gone

. This link
http://wiki.radioreference.com/index..._an_LTR_System
shows you how to go about it, and how to listen in the conventional mode as well. Most LCN systems use home channels 90% of the time, so even in the conventional mode, you can hear most everything.

Skud · #5 (**permalink**) 04-09-2007, 02:20 PM

Does any of the LTR channels make sound like CC channels of EDAC and P25?
If so does anyone have a wav or mp3 example they can post?
Are the sounds differnt oa standard vs a passport system?

UPMan · #6 (**permalink**) 04-09-2007, 02:21 PM

LTR uses subaudible signalling on all of the voice frequencies. There is no dedicated data channel like on EDACS and Motorola.

wannabescannist · #7 (**permalink**) 04-09-2007, 04:18 PM

A lot of times I'll scan in conventional-fm mode...usually, I change the mode to pl/dpl to see if there's a tone associated with it...then I'll switch to LTR mode and just so happen to see the ID information of whoever is transmitting.

DaveIN · #8 (**permalink**) 04-11-2007, 04:32 PM

If you listen to an LTR frequency you can hear the "pip" white noise sound every so often. This is the data being sent from the home channel identifer.

Steveradio · #9 (**permalink**) 04-13-2007, 12:03 PM

Yes.. The PRO92 was great for LTR's with NO LCN needed!!

My Pro-97 is having issues with one system in my area. Is it possible to have more than one home channel on a system?

463.7625 (1) Has most services on as primary frequency at least 5 companies
464.9375 (2) Has other users on as primary frequency at least 3 companies
464.4000 (3) Has at least one primary user 463.7625 is alternate 3rd frequency
462.1250 (4) Has no primary user this used as a 4th bounce frequency.

Just haveing a hard time to figure system out. However it does work for a few services as programed.

Any suggestions?
Steve

bassmkenk2508 · #10 (**permalink**) 04-13-2007, 03:33 PM

Quote:

Originally Posted by Steveradio

Yes.. The PRO92 was great for LTR's with NO LCN needed!!

My Pro-97 is having issues with one system in my area. Is it possible to have more than one home channel on a system?

463.7625 (1) Has most services on as primary frequency at least 5 companies
464.9375 (2) Has other users on as primary frequency at least 3 companies
464.4000 (3) Has at least one primary user 463.7625 is alternate 3rd frequency
462.1250 (4) Has no primary user this used as a 4th bounce frequency.

Just haveing a hard time to figure system out. However it does work for a few services as programed.

Any suggestions?
Steve

Yes it is (from my experience).

I am taking it that the system is a plain LTR standard system and no sort of hybrid of some kind.

For an LTR Standard the way you can tell if there is more than one home repeater is by this deducton:

TGIDs for LTR are in this format A-HH-GGG
where HH is the LCN number of the group's home repeater.

If there are more than one kind of "HH" number found in the TGIDs for the system, there is more than one Home Repeater.

The wiki can tell more about the limits on the numbers in the A-HH-GGG format.

bassmkenk2508 · #11 (**permalink**) 04-13-2007, 03:39 PM

What is the system name / location?

Steveradio · #12 (**permalink**) 04-13-2007, 05:11 PM

Ok this will be alittle strange but can't figure this out myself.

463.7625
464.9375

WPSJ804 FBN Wireless of Reading, Pa.

__________________________________________________
462.1250
464.4000

WNCA488 Robert Conway & Thomas Conway Scranton, Pa.

Like I said all units were herd jumping between frequencies, unless a expired license is in play someplace. The Scranton address has tower located in Salisbury Twp, Lehigh Co along with the Reading license. Both on a mountain in Bethlehem, Pa.

Any other ideas
Steve

captclint · #13 (**permalink**) 04-13-2007, 08:57 PM

Quote:

Originally Posted by Steveradio

Ok this will be alittle strange but can't figure this out myself.
WPSJ804 FBN Wireless of Reading, Pa.
WNCA488 Robert Conway & Thomas Conway Scranton, Pa.
Like I said all units were herd jumping between frequencies, unless a expired license is in play someplace. The Scranton address has tower located in Salisbury Twp, Lehigh Co along with the Reading license. Both on a mountain in Bethlehem, Pa.

I have a lot of experience with Conway systems. He has over 25 in the state. I have found that he will use frequencies from another location of his (location B) , even though he still has unused frequencies at the location of interest (location A). In one case, location B was 30 miles from A. These borrowed frequencies are not licensed for location A. I have suspicions that he is also using frequencies from another licensee at location A (with their permission), but have not been able to find which one(s). If you read posts on this topic, you will find that what he is doing is not uncommon, although not legal.

In this case, both WPSJ804 &WNCA488 only have 2 freq's. Not really enough for a decent LTR, so they are probably combining resources...and may even re-register with the FCC....

Skud · #14 (**permalink**) 04-17-2007, 09:02 AM

Quote:

Originally Posted by Mick

Radio Shack's PRO-97 scanner will show the LCN for a frq.

on my pro -97 it keeps changing. In manual mode i keep getting it randomly going from R10 to R08 to R29(someome did tell me above 20 is a bad R)
Unless I have two close LTR systems

wayne_h · #15 (**permalink**) 04-18-2007, 02:27 AM

Quote:

Originally Posted by Skud

on my pro -97 it keeps changing. In manual mode i keep getting it randomly going from R10 to R08 to R29(someome did tell me above 20 is a bad R)
Unless I have two close LTR systems

Skud, please don't hijack threads.

Go to your post in the RadioShack forum and read my reply.