DSDPlus and NXDN48 and 96

[AngWay]

With DSDPlus Fastlane do i have to set anything up in order to decode NEXEDGE, i have been able to listen to NEXEDGE sometimes but sometimes i set it to a NEXEDGE channel and it doesn't decode. like NEXEDGE48 CB it will decode those and NEXEDGE96 CB
i will add a screenshot showing the NEXEDGE that doesn't do anything. I guess i'm confused on how some stuff works but like i said i can listen to some NEXEDGE stuff. Thanks everyone.

 

[u2brent]

I believe the red text in the pic is a big clue. DSD will decode voice traffic. But it needs additional info to track a trunked systems control channel. You need to add the voice frequency channel data (LSN's) to the frequencies file.

 

[AngWay]

I believe the red text in the pic is a big clue. DSD will decode voice traffic. But it needs additional info to track a trunked systems control channel. You need to add the voice frequency channel data (LSN's) to the frequencies file.

Oh really hmmm i'm not 100% sure what u mean .. why do other NEXEDGE freqs work with no problem.

How do i find the voice frequency channel data?

 

[u2brent]

Oh really hmmm i'm not 100% sure what u mean .. why do other NEXEDGE freqs work with no problem.

How do i find the voice frequency channel data?

Professional Communications NXDN Trunking System, Various, Multi-State

Professional Communications NXDN Trunking System Profile

www.radioreference.com

Click the site names for details.

Site Frequency Table​

CH ID	Frequency
560	858.0125c

 

[RMason]

Oh really hmmm i'm not 100% sure what u mean .. why do other NEXEDGE freqs work with no problem.
How do i find the voice frequency channel data?

Were the other NXDN frequencies that you received conventional or trunked? This is a trunked system.

Here is the system in the RRDB:

Professional Communications NXDN Trunking System, Various, Multi-State

Professional Communications NXDN Trunking System Profile

www.radioreference.com

The only frequency listed for the Abingdon site is 858.0125.

Here is the system in the FCC database:

FCC Callsign WPVR259 (Blankenbecler, Steve)

FCC Callsign WPVR259 (Blankenbecler, Steve)

www.radioreference.com

It shows the 858.0125 frequency as well as 854.4875. This could be the voice channel you are looking for.

 

[AngWay]

Were the other NXDN frequencies that you received conventional or trunked? This is a trunked system.

Here is the system in the RRDB:

Professional Communications NXDN Trunking System, Various, Multi-State

Professional Communications NXDN Trunking System Profile

www.radioreference.com

The only frequency listed for the Abingdon site is 858.0125.

Here is the system in the FCC database:

FCC Callsign WPVR259 (Blankenbecler, Steve)

FCC Callsign WPVR259 (Blankenbecler, Steve)

www.radioreference.com

It shows the 858.0125 frequency as well as 854.4875. This could be the voice channel you are looking for.

Is they're anyway to find out if this is a police channel or something else? i looked over everything you sent do i just put all those freqs into the frequencies file and thats it?

 

[RMason]

Is they're anyway to find out if this is a police channel or something else? i looked over everything you sent do i just put all those freqs into the frequencies file and thats it?

You can try putting the following in your DSDPlus.frequencies: (I derived the OTA Channel Number for the voice channel using a 0.0125Mhz step size).
(No guarantees)

; protocol, networkID, siteNumber, OTAchannelNumber, TXfrequency, RXfrequency, sortOrder
; Abingdon VA-KY Communications
NEXEDGE96, 170, 9, 278, 854.4875, 0.0, 0
NEXEDGE96, 170, 9, 560, 858.0125, 0.0, 0

 

[AngWay]

You can try putting the following in your DSDPlus.frequencies: (I derived the OTA Channel Number for the voice channel using a 0.0125Mhz step size).
(No guarantees)

; protocol, networkID, siteNumber, OTAchannelNumber, TXfrequency, RXfrequency, sortOrder
; Abingdon VA-KY Communications
NEXEDGE96, 170, 9, 278, 854.4875, 0.0, 0
NEXEDGE96, 170, 9, 560, 858.0125, 0.0, 0

I tried it but nothing happened this is all i get.

 

[mtindor]

Oh really hmmm i'm not 100% sure what u mean .. why do other NEXEDGE freqs work with no problem.

How do i find the voice frequency channel data?

CB = Conventional Base -- not trunked. You can park on it and hear everything (unless encrypted)
TB = Trunked Base (part of a trunked site) -- there is going to be more than one requency

Signal strength is way too low. That's the #1 reason you aren't getting anything. For NXDN96 systems, BW in FMP24 should be 9.6, for NXDN48 systems the BW should be 4.0. But you have no signal to work with. To "reliably" monitor any trunked system, you reallly need for every frequency that is part of the trunked site to have an approx 20db SNR (signal to noise ratio) or higher. None of those signals you were parked on come close from what I can see.

 

[mtindor]

BTW, the Sibley Communications part of this system is no longer Sibley Communications. Ownership of all licenses was transferred to Professional Communications, LLC ( https://www.procommsystems.net ) a couple of years ago.

And the operator of VA-KY Communications died not too long ago. Looks like his son took over ( VA-KY Communications )

Who knows how active any of the sites are. There are no talkgroups listed. Could be they are all encrypted and that's why there are none listed. Or it could be that nobody has bothered to care enough to monitor this system in podunkville WV/VA.

So if you can get a decent signal on one of the sites, and you can get it properly configured in DSDPlus, you still may not hear anything. It is doubtful that there is any law enforcement on it. If there is any traffic it's probably businesses and school buses.

Google Map

 

[Whiskey3JMC]

Oh really hmmm i'm not 100% sure what u mean .. why do other NEXEDGE freqs work with no problem.

How do i find the voice frequency channel data?

One of the benefits of your premium subscription is the ability to download DSD+ formatted files for certain trunked systems. Click here and see visuals below for how to get there. Download & place all of the files in DSD+'s root directory

 

[mtindor]

One of the benefits of your premium subscription is the ability to download DSD+ formatted files for certain trunked systems. Click here and see visuals below for how to get there. Download & place all of the files in DSD+'s root directory
View attachment 169385

View attachment 169386

The OP should be reminded that if he does this, it is going to overwrite anything custom that he put into the DSDPlus.groups, DSDPlus.frequencies or DSDPlus.sites files if he/she is not careful.

 

[Whiskey3JMC]

Yeah in that case just append the contents of each downloaded file into the end of the existing files and save

 

[cg]

A couple things from the system type and your pics.
- you can bump the gain up a bit. The second horizontal line is a good target. Different bands and different SDRs may need different gain levels.
- there are two ways a system populates the frequency/channel relationship. One is by the system providing the actual frequency called Direct Frequency Assignment (DFA). DSDPlus automatically shows the channels & frequencies without any editing. The other way is by you editing the .Frequencies file with the channels and frequencies that mate up. some can be calculated via Band Plans, others are only found by matching voice activity with channel numbers displayed.
- If you are doing NXDN but cannot seem to grab the info from a known or suspected NEXEDGE system, go to the Decoder tab in the menu, deselect all but the two NXDN protocols, and drop the bandwidth to 4. That optimizes the program for NXDN. Less important than with early versions but I find it helps, especially with weaker sites

 

[mtindor]

- If you are doing NXDN but cannot seem to grab the info from a known or suspected NEXEDGE system, go to the Decoder tab in the menu, deselect all but the two NXDN protocols, and drop the bandwidth to 4. That optimizes the program for NXDN. Less important than with early versions but I find it helps, especially with weaker sites

And then wait for it -- "I can't decode any P25 / DMR". Easy to forget to re-enable those things once you disable them -- and then rack your brain trying to figure out why stuff won't decode. Has happened more than once to me. Then again I'm not real bright.

 

[seagravebuff60]

Oh really hmmm i'm not 100% sure what u mean .. why do other NEXEDGE freqs work with no problem.

How do i find the voice frequency channel data?

Some NEXEDGE Systems are DFA or Direct Frequency Acess. This means you do not need to program the LCNs into the .frequencies file. DSD+ obtains the traffic channel information from the control channel. Only some systems have DFA enabled and some don't. I've monitored systems with both. Not saying this is exactly what's going on here, just pointing this out.

 

[AngWay]

One of the benefits of your premium subscription is the ability to download DSD+ formatted files for certain trunked systems. Click here and see visuals below for how to get there. Download & place all of the files in DSD+'s root directory
View attachment 169385

View attachment 169386

Thank u so much i put in all the info and i'm playing around with it now... in the 850mhz range i have a bunch of P25 control channels and they all show American electric power and there is really hardly anyone talking on them i also find these larger in size signals but they don't show nothing . i'll attach a screenshot and mark it with a red X.

They're are a lot of these between 850 and 860 . but like i said there is a lot of P25 control channels as well.

 

[mtindor]

They are part of the AEP system. They are Harris Hi-Velocity data channels and you can’t decode them

 

[AngWay]

One of the benefits of your premium subscription is the ability to download DSD+ formatted files for certain trunked systems. Click here and see visuals below for how to get there. Download & place all of the files in DSD+'s root directory
View attachment 169385

View attachment 169386

Can you tell me what steps you took to find this information?

And how can i find the info i need to listen to this site (see attached pics) it's a NEXEDGE48 signal and i have a good signal i'm locking onto but i'm unsure how and where to input the info into dsdplus fl in order to hear the traffic.

Thanks

 

[Whiskey3JMC]

Can you tell me what steps you took to find this information?

Click the link I gave you & download the 3 files I outlined at the bottom of post #11. Paste the contents of each file you downloaded to the ends of the existing files with the same names in your DSD+ directory (DSDPlus.sites, DSDPlus.frequencies & DSDPlus.groups)