georgiat28
Member
what is EDACS, Viper System, input frequencies, Hex. i don't know as much as i thought i did. is hwy patrol on trunking? if so, how do i get trunking for SHP?
Understanding Scanner Langauage
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It sounds like you need help! just kidding, that's what this forum is all about. Ill give it a shot.
EDACS is a type of trunked radio system. If you're interesed in listening to NCHP I wouldn't worry about it, they are and will be on Motorola 800.
VIPER is acronym for (I think: Voice InteroPerability for Emergeny Responders??). It's a state-funded radio system (Motorola 800 TRS both analog and P25 digital) currently under construcion throughout the state. You may or may not have coverage in your area but should over the next couple of years. There will be many state agencies as well as local agencies on the system. Check the VIPER forum for all the details. It seems some people who post there make tracking the changes and updates of VIPER a full time job. There you can find all of the known frequencies and talkgroups and keep track of the latest VIPER happenings.
Input frequencies are the frequencies you need to monitor the trunked system. Some radios only require the control frequency(s) which makes life a little easier. Once the frequencies are programmed you still have to know which talkgroups to program. Basically your scanner stays tuned to the control frequency and scans the talkgroups, not frequencies like conventional scanners (although it's switching frequencies "behind the scenes" as dictated by the control channel data)
As for the NCHP, it depends on your area as to what system they operate on. I can only speak for the area around Charlotte but around here NCHP uses VHF-Lo as primary comms. Some (or all) of the meck. units carry Meck Co TRS radios. All of the NCHP dispatch side comms for H3/H5 (union and meck) and H4 (gaston) units are simulcast through the MeckCoTRS. Same goes for Cabarrus county, NCHP is simulcast through the Cabarrus TRS. I think selected Union county units may have TRS radios but I've never heard and H3 units on the system. Our area will be covered by VIPER eventually. I guess the Lo band stuff will become less and less common as more area are converted to 800.
Jon
N4ZVY
EDACS is a type of trunked radio system. If you're interesed in listening to NCHP I wouldn't worry about it, they are and will be on Motorola 800.
VIPER is acronym for (I think: Voice InteroPerability for Emergeny Responders??). It's a state-funded radio system (Motorola 800 TRS both analog and P25 digital) currently under construcion throughout the state. You may or may not have coverage in your area but should over the next couple of years. There will be many state agencies as well as local agencies on the system. Check the VIPER forum for all the details. It seems some people who post there make tracking the changes and updates of VIPER a full time job. There you can find all of the known frequencies and talkgroups and keep track of the latest VIPER happenings.
Input frequencies are the frequencies you need to monitor the trunked system. Some radios only require the control frequency(s) which makes life a little easier. Once the frequencies are programmed you still have to know which talkgroups to program. Basically your scanner stays tuned to the control frequency and scans the talkgroups, not frequencies like conventional scanners (although it's switching frequencies "behind the scenes" as dictated by the control channel data)
As for the NCHP, it depends on your area as to what system they operate on. I can only speak for the area around Charlotte but around here NCHP uses VHF-Lo as primary comms. Some (or all) of the meck. units carry Meck Co TRS radios. All of the NCHP dispatch side comms for H3/H5 (union and meck) and H4 (gaston) units are simulcast through the MeckCoTRS. Same goes for Cabarrus county, NCHP is simulcast through the Cabarrus TRS. I think selected Union county units may have TRS radios but I've never heard and H3 units on the system. Our area will be covered by VIPER eventually. I guess the Lo band stuff will become less and less common as more area are converted to 800.
Jon
N4ZVY
blinddog50
Member
Jon, good job!
Robbyboy
Cat Herder
jplyler said:
Not to nitpick....
Voice
Interoperability
Plan
for
Emergency
Responders
http://www.radioreference.com/wiki/index.php/Trunkinggeorgiat28 said:
Input frequencies generally refer to a frequency used to access a repeater. If you have a choice, *again - generally speaking*, you will want to key into your scanner the output frequencies of a repeater.
Some do load inputs into a scanner so they can tell how close (as in distance) they are to the person xmitting because inputs are used by low power radios.
In the RRDB, all frequencies listed for a trunking system will the output.
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