DSDPlus Ch #s to Uniden CON+ LCN Conversion

[Steve2003]

For anyone who needs to translate their DSD+ frequencies to Uniden LCNs on a Connect+ system here is how you can translate them (if you are having issues with the LCN finder on the current beta DMR firmware):

• DSDPlus has two ch #s for each frequency pair (one for each frequency and slot)
• The first pair of frequencies will be LCN-1, Second Pair is LCN-2, etc
• Or simply take your even Ch #s form DSD+ and divide by two to get the corresponding LCN (you only need to enter each frequency once on your BCDx36HP)

Example:

454.1000/1 (DSD Ch-1 | Uniden LCN-1)
454.1000/2 (DSD Ch-2 | Uniden LCN-1)
454.2000/1 (DSD Ch-3 | Uniden LCN-2)
454.2000/2 (DSD Ch-4 | Uniden LCN-2)
454.3000/1 (DSD Ch-5 | Uniden LCN-3)
454.3000/2 (DSD Ch-6 | Uniden LCN-3)

Example:

454.275/1 (DSD CH-1 | Uniden LCN-1)
454.275/2 (DSD CH-2 | Uniden LCN-1)
454.250/1 (DSD CH-3 | Uniden LCN-2)
454.250/2 (DSD CH-4 | Uniden LCN-2)
454.025/1 (DSD CH-5 | Uniden LCN-3)
454.025/2 (DSD CH-6 | Uniden LCN-3)

I tried searching the RR forums on how to do this earlier and didn't have much luck. (doesn't help when you can't search "LCN" "CON" "DMR" and "DSD" in the RR Forums because your keywords are too short).

Things are now tracking flawlessly!

 

[mancow]

Nice. Thanks!

 

[UPMan]

I have posted elsewhere LCN = (round up)(LSN/2)

i.e. if the LSN is 7, then LCN would be (roundup)(7/2)=(roundup)3.5 = 4.

Actual excel forumula would be LCN = trunc(LSN/2+.5)

(LSN = Logical Slot Number, not an official term, but differentiates frequency+slot from just the frequency)

 

[Steve2003]

Boom, thanks for the excel formula as well. I was going to do it the hard way!
=(IF(ISEVEN(LSN,LSN+0,LSN+1)/2)

I have posted elsewhere LCN = (round up)(LSN/2)

i.e. if the LSN is 7, then LCN would be (roundup)(7/2)=(roundup)3.5 = 4.

Actual excel forumula would be LCN = trunc(LSN/2+.5)

(LSN = Logical Slot Number, not an official term, but differentiates frequency+slot from just the frequency)

 

[kh6sz]

I have posted elsewhere LCN = (round up)(LSN/2)

i.e. if the LSN is 7, then LCN would be (roundup)(7/2)=(roundup)3.5 = 4.

Actual excel forumula would be LCN = trunc(LSN/2+.5)

(LSN = Logical Slot Number, not an official term, but differentiates frequency+slot from just the frequency)

Should we be using this conversion for ALL dmr flavors, or just for the CON+ systems?

 

[UPMan]

All. Only one LCN per frequency, but two LSNs per frequency.

 

[kh6sz]

All. Only one LCN per frequency, but two LSNs per frequency.

Now I'm really confused! Should we be entering each frequency twice, or just once? For instance:

461.075 01
461.075 02
461.5625 03
461.5625 04
462.275 05
462.275 06
etc....

Or should we enter it this way in the scanner:?

461.075 01
461.5625 02
462.275 03

Any help would be greatly appreciated!

 

[kma371]

Now I'm really confused! Should we be entering each frequency twice, or just once? For instance:

461.075 01
461.075 02
461.5625 03
461.5625 04
462.275 05
462.275 06
etc....

Or should we enter it this way in the scanner:?

461.075 01
461.5625 02
462.275 03

Any help would be greatly appreciated!

The second

 

[wa8pyr]

Now I'm really confused! Should we be entering each frequency twice, or just once? For instance:

461.075 01
461.075 02
461.5625 03
461.5625 04
462.275 05
462.275 06
etc....

No. These are "Logical Slot Numbers" and reflect the two virtual channels per frequency. It's not necessary to enter each frequency twice.

Or should we enter it this way in the scanner:?

461.075 01
461.5625 02
462.275 03

Any help would be greatly appreciated!

Correct. You only need to enter each frequency once. . . BUT, you do have to have the Logical Channel Numbers correct for Connect Plus systems; for Capacity Plus systems, the scanner ignores the LCN.

I've been tracking a Connect Plus system quite nicely, but it took a bit of doing to make sure the LCN order was correct (unknown, unlicensed frequencies were only part of the problem).

See DigitalMobileRadioUpgrade < UnidenMan4 < TWiki

 

[garys]

Just to add to the confusion, when using DSD+ to monitor a Con+ system several of us have used LCN and Over The Air (OTA) Channel instead of LSN. There are two LSNs or OTAs per frequency.

LCN LSN/OTA
1 1/2
2 3/4
3 5/6

It can get confusing, at least for me.

The control channel is always on the lowest OTA of the frequency. Some Con+ systems rotate CC, some don't.

 

[DaveIN]

All. Only one LCN per frequency, but two LSNs per frequency.

Paul, the latest DSD Fastlane is reporting CAP plus "LSN's" for each of the LCN's something in the data stream possibly that would be beneficial.

E.g. CON+ DCC: 2, S1 & S2 belong to the first repeater in this system.

 

[kevino]

No. These are "Logical Slot Numbers" and reflect the two virtual channels per frequency. It's not necessary to enter each frequency twice.



Correct. You only need to enter each frequency once. . . BUT, you do have to have the Logical Channel Numbers correct for Connect Plus systems; for Capacity Plus systems, the scanner ignores the LCN.

I've been tracking a Connect Plus system quite nicely, but it took a bit of doing to make sure the LCN order was correct (unknown, unlicensed frequencies were only part of the problem).

See DigitalMobileRadioUpgrade < UnidenMan4 < TWiki

I am trying to program a two-repeater CAP+ system into my BCD436HP w/DMR upgrade. Using DSD+, I have been able to determine which repeater is LCN1 and which is LCN2. The phrase "for Capacity Plus systems, the scanner ignores the LCN" in the above post has be a bit confused. Should I be entering the proper LCN after programming each frequency of this Cap+ system or not?

Thanks in advance.....