Help with LCNs for a DT-III system with a 536hp?

[sudsyjkh]

Hi all.

Thanks in advance for help with this.

For starters, yes, I have looked through the user manual, both regular and simplified versions, as well as some wikies and many posts here on the forums.

Trying to figure out the proper LCNs for a DMR tIII system over here.

I"ve put the frequencies into a new/empty system, ran the LCN finder function on the radio and got the following:

422.4625 37

422.5625 45

422.6625 67

423.0375 83

422.3625 297

422.2625 1168

423.5250 1827

Those last couple (compared to the others) are way out there as far as the LCN.

I do get audio, but doesn't look like it will follow/track the system.

After reading farther, seemed like I need to alter the LCNs the 536 gave me, by subtracting 1 from the even and 2 from the odd numbered ones, then dividing each by 2, coming up with: 422.4625 (37-1/2 = 18_ as an example for the first one.

Doing that with all freques ends up with no audio at all once I program and set it to scan.

For what it's worth, this is in Sudbury, Ontario, Canada, and the system for Vale nickel mining/smelting operations (formerly Inco).

 

[mciupa]

There is a calculator that a member here created for these systems:

26.4 KB folder on MEGA

3 files

mega.nz

Using it, it determined 422.2500 to be the base frequency and these are what it calculated for LCN which you require for your scanner

• 422.4625 18
• 422.5625 26
• 422.6625 34
• 423.0375 64
• 422.3625 10
• 422.2625 2
• 423.5250 103

Give this a try, although you may wish to put the LCN's in numerical order.
I hope this works.

 

[cg]

3 of the channels follow a band plan that sets 422.0000 as channel 0. I would suggest....

422.4625 37 probably correct
422.5625 45 probably correct
422.6625 67 try 53
423.0375 83 probably correct
422.3625 297 try 29
422.2625 1168 try 21
423.5250 1827 try 42

chris

 

[sudsyjkh]

Thanks to both of you for the responses.

Much appreciated guys.

I’m visually impaired/blind, and had tried using the calculator this afternoon, but it wasn’t accessible with my screen-reading software.

I’ve plugged both sets into different lists and will comment later tomorrow with results.

Thanks again.

 

[Ubbe]

It's 13 voice channels for that system which seems a bit too much. Maybe those out of place LCN's are from other systems. It's a bit unlikely that a frequency in the middle of the others would use a totally different LCN base.

Have you monitored all those frequencies in conventional mode, and perhaps in a OFT system that doesn't use LCN, to hear that it is the same guys on all frequencies and if you have some text to speech device you hear that the TG's used are what could be expected?

/Ubbe

 

[mciupa]

Revisiting this thread to see what the outcome was. Are you trunktracking now and what is the set up?

I can update the database as required.