NXDN and SDS100

[jazzboypro]

Hello all,

I have a SDS100 with the NXDN key. I have programmed the yellow portion of the picture below. I know the RAN is ok because it works fine on my 8600. I don't know what to put in the LCN column and the 8600 does not seem to need this information.

On the SDS100 when i try to scan this favorite list it says "Scan mode, nothing to scan" What am I missing ?



Many thanks
73 de VA2FCS

 

[UPCoffeyvilleSubMain2]

Sds-100 "nothing to scan" at least means under menu -> settings -> set scan selection -> Select lists to monitor , all the lists are set to no for monitoring.

It may also mean some list is set to monitor yes but all the entries in the list that is set to monitor yes are set to avoid in the sys options settings.

 

[chief21]

Do you have the appropriate Service Types enabled?

 

[jazzboypro]

All service types are enabled except schools and corrections

 

[chief21]

As UPC... noted earlier, do you have the appropriate LIST enabled for monitoring (Select Lists to Monitor)?

I see in your post that there appears to be no TG's associated with this system. Are you attempting to SCAN rather than SEARCH? I would also add some TG's into the programming, just to see if it makes a difference.

 

[Whiskey3JMC]

Your screenshot shows you have no talkgroups programmed in. You need at least one TGID programmed in or ID Search enabled to be able to scan the system

 

[jazzboypro]

As UPC... noted earlier, do you have the appropriate LIST enabled for monitoring (Select Lists to Monitor)?

I see in your post that there appears to be no TG's associated with this system. Are you attempting to SCAN rather than SEARCH? I would also add some TG's into the programming, just to see if it makes a difference.

Yes the list is enabled, it is the only list enable for now. I will try adding TG's and see what happens. As for am I searching or scanning i will have to look this up on the manual for how to configure this. I kind of assume i am scanning but i'm not sure.

 

[jazzboypro]

Has suggested i entered a few TG's as i saw them appear while monitoring with my 8600.



That made the "Scan mode, nothing to scan" message disappeared. This what i see now:



How ever i don't get any audio. The 8600 and SDS100 are connected to the same antenna simultaneously thru a Stridsberg multicoupler so both radios are monitoring at the same time. The 8600 pickup the TG's but not the SDS100. Am i missing something else ?

 

[Whiskey3JMC]

Looks like you have the system programmed in as NXDN trunked. Are you sure it's a trunked system and not a series of NXDN conventional channels? If NXDN conventional you may have better results programming the system as NXDN One Frequency

 

[jazzboypro]

I switched to NXDN one frequency but still no audio.

 

[dave3825]

Just curious, most of the freqs in your pic are listed in the CA database as conventional analog channels. Are all those fregs analog conventional or NXDN? Not sure where the talk group descriptions are coming from. You pick is also not indicating a signal is being received.

 

[jazzboypro]

I've enabled ID search on the system. The SDS100 only discovered TG 0 while my 8600 showed 9 TG's none of them being TG 0

Just curious, most of the freqs in your pic are listed in the CA database as conventional analog channels. Are all those fregs analog conventional or NXDN? Not sure where the talk group descriptions are coming from. You pick is also not indicating a signal is being received.

I agree about RR database indicating the frequencies as FM analog. Last Friday i was listening to all the frequencies i had programmed in my 8600 and on 160.530 i was hearing a weird sound when the radio stopped on it. That's when i remembered that NXDN was used in the railway business. I switched from FM to NXDN-VN and there is was i had the audio.

The same thing happened on :

160.710
160.755
161.190
161.310
161.430

The talk group description comes from the 8600. When it stops on NXDN signal there is a subscreen appearing that indicates the TG, RAN etc. Some frequencies appear to have more than one TG


163.800 exists as analog FM and also NXDN. Same for 160.470 according to RR database

163.005 is NXDN also according to RR database.

 

[jazzboypro]

I think i did not understood the 8600 NXDN screen. On the picture below i thought 1324 was the TG ID but i don't think it is. 0 is the TGID and that's what i see on all my NXDN frequencies. That explains why i only see TGID 0 on the SDS100. Does someone know what 1323 means ? and i also noticed that this number changes even if the frequency stays the same. for example on 160.470 i've seen:

17034
14213
13033
18117
1001
1

 

[dave3825]

You do not by chance have a sdr dongle and DSDPlus?

On the picture below i thought 1324 was the TG ID but i don't think it is. 0 is the TGID and that's what i see on all my NXDN frequencies. That explains why i only see TGID 0 on the SDS100.

TG ID and TGID are the same. I am not sure on NXDN but on P25 a TGID of zero can indicate an external patch, but that's usually on trunked systems.

i also noticed that this number changes even if the frequency stays the same. for example on 160.470 i've seen:
17034
14213
13033
18117
1001
1

Those would be RID's. Each radio has a unique number. Like a serial number. Most of what you have seen are 5 digits, 1, 4 digit, and 1, 1 digit. The 1001 and 1 could be a dispatchers console, the radio the dispatcher uses.


The 160.469 ran 32 should be 160.470 ran 32, in use here. Are you with in range of Cavendish Yard?

 

[jazzboypro]

You do not by chance have a sdr dongle and DSDPlus?



TG ID and TGID are the same. I am not sure on NXDN but on P25 a TGID of zero can indicate an external patch, but that's usually on trunked systems.


Those would be RID's. Each radio has a unique number. Like a serial number. Most of what you have seen are 5 digits, 1, 4 digit, and 1, 1 digit. The 1001 and 1 could be a dispatchers console, the radio the dispatcher uses.


The 160.469 ran 32 should be 160.470 ran 32, in use here. Are you with in range of Cavendish Yard?

View attachment 157764

Yes i am in reach of the Cavendish Yard. For some reason 160.470 sometime appears as 160.459.95 but i still hear the conversation clearly. The radio ID makes sense, thanks for the info.