Need LMRN programming help

mciupa

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Still can't get LMRN to work

I hear MTO with a nice signal from Toronto, Mississauga and King City towers with my 536.
I looked over my Sentinel programming and when I check the Band Plan, all my sites show 0.00000 in the fields. The Digital settings are Auto and Threshold 8. It will come in with 5 bars show DAT and when they talk LNK. Hold Time 5 sec. and ID SEARCH ON (of course)

My 325 has the Band Plan auto-populated, I never touched or modified it. All those other P25 settings are the same as the 536..
 

EJB

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I hear MTO with a nice signal from Toronto, Mississauga and King City towers with my 536.
I looked over my Sentinel programming and when I check the Band Plan, all my sites show 0.00000 in the fields. The Digital settings are Auto and Threshold 8. It will come in with 5 bars show DAT and when they talk LNK. Hold Time 5 sec. and ID SEARCH ON (of course)

My 325 has the Band Plan auto-populated, I never touched or modified it. All those other P25 settings are the same as the 536..

It's not working. I have I hope you will see 3 scanners. The 325P2 will show activity if I sit on the frequency.

The SDS & 436 at the same time show ABSOLUTELY NOTHING!!!

I also took a picture of my set up using ARC software...I'll try to attach them

I've had some help here from people to no success. I'd appreciate it if anyone sees what I am doing wrong.

20240529_223909.jpg20240529_223858.jpg
 

mciupa

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In your ARC software, add the P25 NAC of AD7, instead of SRCH. Frequencies have changed yesterday, update those as well.
 

EJB

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I'm assuming the AD7 is specific for the Hamilton tower.

What about for the system in general. Leave P25NAC as search?

Well Unitrunker is showing all the new Hamilton CACC activity that the scanners won't pick up obviously but there was some MTO activity that both scanners didn't "hear."

Attaching a picture of my tag for LMRN, not the individual Hamilton site I sent last night.
What the picture says in case it's not clear

SYSTEM TYPE P 25 STANDARD
ID SEARCH: ON
P25 NAC SEARCH (I changed Hamilton site to AD7) HOLD TIME 5
PRIORITY ID SCAN EMPTY
END CODE IGNORE
AGC: BOTH ANALOG AND DIGITAL not checked off

Anything I'm screwing up here?

20240530_101148.jpg
 

EJB

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I did the changes and I will run and record them for awhile as I attend to other things
 

mbstone99

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In your ARC software, add the P25 NAC of AD7, instead of SRCH. Frequencies have changed yesterday, update those as well.

Interestingly ProScan does not have have this option. I do still have ARC536 Pro so I might have to switch back over if this helps EJB.

Matt
 

EJB

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Made the changes didn't see much action with MTO....

Doesn't have to do anything with Location, how many miles I set up if I wanted to use the entire DB to scan.

All the service types are cool

All the NAC are system AD9, Hamilton AD7
Modulation
5 sec hold

200
8


Edit
Let it run for an hour. Lots of MTO activity but absolutely nothing on the scanners.

This is frustrating. It would be super frustrating if listening to the MTO was worth it

I am lost for any explanation, I'm not this dumb. I've had help from some people and I appreciate it. I don't know what else to say.
 

EJB

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I had some help from someone but it didn't work. In fact in all the loading and unloading and changing the ARC software made all my lists to PERMANENT AVOID. Which then shows there's "Nothing To Scan".

Took about 10 minutes to change both radios to not be avoided.

The gentleman who helped me might send me another codeplug and I will try to program it myself using the suggestions and ideas from @mciupa

I've never had this happen like this. I was so mad I wanted to throw things but I'm poor and controlled myself before I threw a tantrum.

What a great day this is!!!!! Ya!!!!
 

ProScan

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Interestingly ProScan does not have have this option. I do still have ARC536 Pro so I might have to switch back over if this helps EJB.

Matt
The options in ProScan should match the scanner options and Sentinel exactly. Are you using a BCD436HP or something else? I believe the BCDx36HP scanner has the NAC option for just the P25 One Freq. system at the system level. You can confirm that by going into the scanner menu then to the system options.

The SDSx00 scanners have the P25 NAC option for P25 Trunk and P25 One Freq. systems at the site level.
 
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ProScan

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Interestingly ProScan does not have have this option. I do still have ARC536 Pro so I might have to switch back over if this helps EJB.

Matt
The options in ProScan should match the scanner options and Sentinel exactly. Are you using a BCD436HP or something else? I believe the BCDx36HP scanner has the NAC option for just the P25 One Freq. system at the system level. You can confirm that by going into the scanner menu then to the system options.

The SDSx00 scanners have the P25 NAC option for P25 Trunk and P25 One Freq. systems at the site level.

I took a 2nd look today. I see that Sentinel (Target Model set to BCDx36HP) has the P25 NAC option grayed out on P25 Standard systems. Same with ProScan. The scanner system options don't have a P25 NAC option either.

Untitled.png
 

gary123

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I have found that setting the NAC to the site NAC makes no difference as far as normal operation is concerned. Sentinel and Butel lets you set a site NAC. The only difference I saw on the scanner was that the NAC value displays flashes when in NAC search mode and stays lit if the correct NAC is entered. I have a strong suspicion that if you enter in an incorrect NAC for the site the scanners may ignore all activity due to the incorrect NAC. I may test this over the weekend.
 

mbstone99

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I took a 2nd look today. I see that Sentinel (Target Model set to BCDx36HP) has the P25 NAC option grayed out on P25 Standard systems. Same with ProScan. The scanner system options don't have a P25 NAC option either.

View attachment 163131

Ya I am using a 436 and have them set up for the radio.. and hmm that's interesting. I don't see a NAC option at all for ProScan although in ARC it does and shows it as "Search" for the set NAC.

I just did an update to 22.12 and still don't see it.

444301baff330a616e25d87a9fbdedb6.png

I have found that setting the NAC to the site NAC makes no difference as far as normal operation is concerned. Sentine and Butel lets you set a site NAC The only difference I saw on the scanner was that the NAC value displays flashes when in NAC search mode and stays lit if the correct NAC is entered. I have a strong suspicion that if you enter in an incorrect NAC for the site the scanners may ignore all activity due to the incorrect NAC. I may test this over the weekend.

I was wondering about that too.. and I have a feeling that you are probably correct.

Matt
 

gary123

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I have LMRN working fine on several SDS200's and my personal 536. Both are working with either the NAC set to Search or having the site NAC set to the correct site NAC.

we should clarify that this is on a P25 X2 TDMA system.
 

ProScan

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I am using a 436 I don't see a NAC option at all for ProScan

Correct. ProScan doesn't show the P25 NAC option on P25 Standard Trunk systems because the scanner and Sentinel doesn't either.

If you're seeing a P25 NAC option on P25 Standard Trunk systems then it could be the software that is in error.

I have found that setting the NAC to the site NAC makes no difference as far as normal operation is concerned. Sentine and Butel lets you set a site NAC

Sentinel will show it at the site level when the Target Model is set to SDSx00 but not the BCDx36HP.
 

EJB

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If I may.
One thing I noticed about ARC software. It used to change the band plan information way back in the early Fleetnet days, I'd put in the band plan and it occasionally corrupted it.

I use ARC Pro for my 325P2. I've been told to set LMRN at 200 for waiting time, the default is 400 and it switches back to the default all the time as does the CONTROL CHANNEL ONLY, I check it off and when I go back to the software the check mark is deleted.
I'm not sure if this is a problem for the ARC software for the 436/536 SDS software.

I was given a file by a member who has it working in all the scanners they have; the information below :

System type: P25 X2 TDMA
ID SEARCH
P25 NAC-Search
I save it to particular Quick Keys

Does the File Index mean anything?

Hold time is 5 seconds
I leave END CODE to ignored
AGC is left blank for analog and digital

For the actual site
Quick key is zero
MODULATION-AUTO, I've used both NFM or FM in the past.

Band plan is empty-standard
P25 Waiting time is 200
P25 THRESH.MODE is manual
P25 THRESH. Level is 8
Filter is normal
I've done both putting in the sites P25 NAC of AD7

Next post will be the system I directly downloaded from the site and I will alter the settings to what mciupa suggested in his picture.
 

EJB

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Ok.
I downloaded in the LMRN system from the DB. I picked 4 towers and will avoid all but Hamilton.

And it still doesn't work!!! I'd type anm adjective before work, everyone knows what it is.

I took pictures of both the list and the Hamilton site but here in letters are the parameters:

P25 STANDARD
ID SEARCH is checked
P25 NAC-search
Gave it a quick key and number tag
Hold time 5 seconds
End Code is IGNORE
AGC is blank, nothing is checked of

Hamilton site:
Modulation is NFM
P25 WAITING is 200
P25 THRESH.MODE-AUTO
P25 THRESH LEVEL-8
FILTER-NORMAL
P25NAC-Search

And it doesn't work.

Look at the pics, I feel like drinking a bottle of wine now.20240529_223858.jpg

20240531_182825.jpg
 

EJB

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A shot in the dark, desperation question. Unitrunker works perfectly on LMRN. I checked out the band plan for Unitrunker. I'll snap a picture?

Base 136.0050
Low 02-0000
High 02-4095
Spacing 7.500

The 2nd line in the picture is 851.0625, doesn't make sense

20240604_163402.jpg
 

mciupa

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Here is the LMRN Band Plan:

P25 Channel ID Table​

CH IDTypeBase (MHz)Spacing (KHz)Transmit Offset (MHz)
1FDMA136.005000.0075-4.02
2TDMA136.005000.0075-4.02
3FDMA136.005000.0075-4.05
4TDMA136.005000.0075-4.05
5FDMA136.005000.0075-2.235
6TDMA136.005000.0075-2.235
7FDMA136.005000.0075-2.145
8TDMA136.005000.0075-2.145
13FDMA769.000000.00625+30.0
14TDMA769.000000.00625+30.0
15FDMA851.062500.00625-45.0
16TDMA851.062500.00625-45.0
 
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