edacs-provoice/esk
- Thread starter JoeTex1
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You should be able to identify your system in the Radioreference Database in the link at the top of the page. Navigate to your state, county, trunked systems. This should tell you if it's an ESK equipped system.
If it's still unknown you could park your scanner on a known voice channel to tell that the signal is digital, but that still won't tell you if your system has ESK. If you could monitor the control channel with UniTrunker and a Discriminator tapped scanner and the program could identify ESK if it's in use.
Most of the newer trunking scanners do not track ProVoice talkgroups at all, but will track ESK equipped analog (or mixed mode) systems.
You would not be able to hear ProVoice voice channels without a discriminator tap and external software such as the Digital Speech Decoder (software_package)
If it's still unknown you could park your scanner on a known voice channel to tell that the signal is digital, but that still won't tell you if your system has ESK. If you could monitor the control channel with UniTrunker and a Discriminator tapped scanner and the program could identify ESK if it's in use.
Most of the newer trunking scanners do not track ProVoice talkgroups at all, but will track ESK equipped analog (or mixed mode) systems.
You would not be able to hear ProVoice voice channels without a discriminator tap and external software such as the Digital Speech Decoder (software_package)
And, if you have the Digital Voice Decoder Software & discriminator tap working, will you still be able to monitor if ESK is activated?
Yes, ESK is only related to the control channel and not the audio.
thnx for yalls reply...and yes I recently tap a pro-97 ,and been using the unitrunker but on the edacs system says dig under source but it dont specify if its provoice or esk..by the way I think the info on the data base is some how rigged cause it says provoice with p-25 and according to the wiki thing edacs systems are not p-25 compliant...but when I hook it up to the unitrunker on the buzzing chan..not the cc.the unitrunk identifys it as p-25....still new to all this..any how..can you actually listen or just monitor with unitrunker???
puzzleriddle
Member
Digital Speech Decoder (software package) - The RadioReference Wiki it is still there scroll down the page, It is NOT for windows, You will have to install UBUNTU linux!!!
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It sounds like you may be confusing ProVoice and ESK a little bit... In the EDACS world they typically use one of two different digital voice formats... AEGIS or ProVoice (There was also Voice Guard too, but it's ancient). AEGIS and ProVoice are both just digital formats like P25, and come in either clear or encrypted flavours. ESK on the other hand is a scheme that basically encrypts the messages carried on the control channel to prevent rogue radios from accessing the system. It has nothing to do with the voice format that is being used on the system.
Most trunking decoder programs like UniTrunker will handle ESK without any issues, as will most newer scanners. So if you are trying to learn more about an EDACS system with digital talkgroups, they will be AEGIS or ProVoice.
Most trunking decoder programs like UniTrunker will handle ESK without any issues, as will most newer scanners. So if you are trying to learn more about an EDACS system with digital talkgroups, they will be AEGIS or ProVoice.
I understand homer simpson but of what I'v read here and there is that esk is somewhat of a encryption that can be deactivated (or go voice analog) unlike provoice whitch stays digital at all times it cant be deactivated..but esk works more like apco-25 witch is trackable unlike provoice can't and may not be since it sounds alot more like a encryption type comm.
Umm... did you even read all of my post? Especially this part? "ESK on the other hand is a scheme that basically encrypts the messages carried on the control channel to prevent rogue radios from accessing the system. It has nothing to do with the voice format that is being used on the system."
Feel free to check the wiki for more info... ESK - The RadioReference Wiki
Feel free to check the wiki for more info... ESK - The RadioReference Wiki
Because talkgroups can be mixed mode with both analog and digital. And how do you know it's encrypted, and not just digital? Last I checked there is no way to tell if an EDACS system is using encrypted voice short of looking at the display of an actual system radio. UniTrunker etc will not show you if a system is using encryption, only that the activity is digital. It also can't tell you if the groups are AEGIS or ProVoice.
If a system usually runs digital I would imagine that it would fall back to analog in the event of a hardware failure. Heard it happen more than once on my local EDACS system.
esk?
Well no I dont recall having said it was encrypted..thoe it sounded alot like a provoice type..witch at this point in time is alot like an encryption..but one day it was all digital then the following day it was in anolog well at least one digital talk group is..the rest stayed digital..and to my guess the trs. is having system failure..since its skiping one repeater..and I do have the correct Lcn..
Well no I dont recall having said it was encrypted..thoe it sounded alot like a provoice type..witch at this point in time is alot like an encryption..but one day it was all digital then the following day it was in anolog well at least one digital talk group is..the rest stayed digital..and to my guess the trs. is having system failure..since its skiping one repeater..and I do have the correct Lcn..
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