n4yek
Member
Conventional, P25, linked repeater system.
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Conventional, P25, linked repeater system.
K
Kcomm
Guest
There are many digital technologies in operation today; grouping them all together in a broad "digital" statement isn't very fair, as they're like comparing apples to oranges. Mototrbo is TDMA, 3GPP LTE is OFDMA/FDMA, most cellular is W-CDMA. Not even remotely related outside the fact that they're all broadcast over the air. CDMA, TDMA and FDMA all have their disadvantages, but if one looks at cellular technology, they're effectively abandoning TDMA(and CDMA to a degree) in favor of FDMA.
hcpholder
Member
- Joined
- Jul 24, 2003
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Sevier County LTR 800?
I see that the Sevier County LTR system is now show 800 freqs instead of the 400's shown a few weeks ago. What's going on? Should I leave the "previous 400 system" and setup a new LTR 800 TSYS in my Pro-106?
I see that the Sevier County LTR system is now show 800 freqs instead of the 400's shown a few weeks ago. What's going on? Should I leave the "previous 400 system" and setup a new LTR 800 TSYS in my Pro-106?
tennesseefreq
Member
Both systems are up and running the listed talk groups on the 800 system are linked from the UHF system.
n4yek
Member
Just monitor the UHF freqs, you won't miss anything. You can't hear 800 MHz in Gatlinburg except in spotty locations, it is very weak and is just a simulcast of the UHF system.
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n4yek
Member
New ID: 0-18-205 Sevierville Police
holeinace
Member
I was in Wears Valley for several days and did not hear anything on the trunked systems. I did not listen full time because I got mad and wanted to hear something. The conventional frequencies would have come in better had I taken the correct antenna.
n4yek
Member
Thats odd... the trunk system is very active. Unless you were in the 'Dead Zone', you should have received something. Wears Valley Fire Department uses it so you should have been able to hear it, the UHF system covers that area pretty good.
holeinace
Member
The UHF was great as was the Park. I was in a hurry when I programmed the scanner so I may have done it wrong. I will be returning in August. I will have plenty of time to mess with it then cause it will be too hot to hike
khvfdff
Member
Personally, I feel that what is in the database is a little confusing. I was just up to that area about a month ago on vacation. What I think needs to be done with the database is that all the talkgroups need to be listed by what site they are on. All with the accurate control channels and talkgroups.
I do tend to get a little impatient when I am somewhere and I prefer to have my stuff preprogrammed. The whole time that I was in Sevier County all I heard was the Sheriff's office. I never once heard the fire departments except on the appropriate conventional tone paging frequencies. I was kinda disappointed in this.
Yes, I had everything programmed as it said in the database. I was using a BCD396T. Also for the GSMNP, I only heard the analog channels all the digital channels were coming in with what sounded like databurst.
Other than that, throughout the entire state of Tennessee and Georgia all the way up there and on the way back home I was very pleased with the channels and they were all easy to figure out. The UHF Med Channels did catch my attention when a hospital was being called with their own special tones.
I do tend to get a little impatient when I am somewhere and I prefer to have my stuff preprogrammed. The whole time that I was in Sevier County all I heard was the Sheriff's office. I never once heard the fire departments except on the appropriate conventional tone paging frequencies. I was kinda disappointed in this.
Yes, I had everything programmed as it said in the database. I was using a BCD396T. Also for the GSMNP, I only heard the analog channels all the digital channels were coming in with what sounded like databurst.
Other than that, throughout the entire state of Tennessee and Georgia all the way up there and on the way back home I was very pleased with the channels and they were all easy to figure out. The UHF Med Channels did catch my attention when a hospital was being called with their own special tones.
I'm a scanner noob so I don't know what that means but I'm always trying to listen to the park rangers when we go to Cades Cove or stay in our cabin behind Dick Clark Theater but never get anything. I even tried to listen to a ranger directing traffic for a bear alert on the Cades Cove loop with Close Call and got nothing. Do they use a system or convetional freqs?
Park Rangers
I have a pro106 and listen to the park rangers every night, N4yek is right they are on a p25 system on 169.550000. I live in kodak Tn ( north of I-40) and I hear them well and everything else in sevier co. Pigeon Forge FD is digital. I put my scanner on search sometimes and pick up some odds but not really much going on in 700 range only Knoxville was testing about 5 freqs but no traffic on them now. I have pick up a few here this week but still looking at them (700 freq)
I have a pro106 and listen to the park rangers every night, N4yek is right they are on a p25 system on 169.550000. I live in kodak Tn ( north of I-40) and I hear them well and everything else in sevier co. Pigeon Forge FD is digital. I put my scanner on search sometimes and pick up some odds but not really much going on in 700 range only Knoxville was testing about 5 freqs but no traffic on them now. I have pick up a few here this week but still looking at them (700 freq)
Ok so based on that frequency, they're on a digital system and my Uniden 330T can't pick it up.
n4yek
Member
169.5500 MHz is just one of many freqs they are using, ALL repeaters are linked together and retransmit the exact same conversation across the park. Just pick the freq that you receive the best.
Scroll down to the Great Smoky Mtn National park.
Federal Scanner Frequencies and Radio Frequency Reference
Scroll down to the Great Smoky Mtn National park.
Federal Scanner Frequencies and Radio Frequency Reference
Yep, like n4yek said many to pick from so instead of putting all of them in there I just put my scanner on search till I got the best signal which is 80% so I just stuck with that one.Just so happens it was in my back door and sounds good. Someone tell me why they say "break" and not say anything for few sec.and then talk again. Sometimes it sounds like their radio fades out just before they do that. Just wondering I'm not new to scanning (pro94,94b) then got this pro106 and I'm really trying hard to catch on to this high tech and I think it may be over my head some.But really found a great deal of info on this site by just reading. Thanks to everyone Ronnie
Most of the time "break" is used to break up a long message in case another unit has urgent traffic that cannot wait for the long message to complete. I hear it most often on BOLO's (be on the lookout for). If no one interrupts they continue/complete the message after a brief pause. Good amateur radio operators do the same on nets or busy frequencies.
Doc
Doc
So they just use one frequency for their main chatter? Can this be heard on on analog radios or just digital? Kel415 said he hears them on a "p25 system on 169.550000" My BR330T can only do 4 numbers after the decimal so I'm assuming 6 after the decimal means digital. I'm digitally a dummy.
n4yek
Member
No, all communications take place on ALL the frequencies at the same time. They are linked together. With the exception of 'Local' which is basically talking to each other in simplex mode. He might hear them best on 169.5500MHz at his location, I don't. My best frequency is 172.500MHz and that is the freq I listen to them. We both hear the exact same thing at the same time from the same person.
You need a radio capable of decoding P25 in order to monitor the communications from the National park. Once in a blue moon you might hear someone transmit in analog.
That is just how he typed it on here, 169.55 is the same as 169.550000. The indicator 'P25' tells you it is digital
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