Marion/Sequatchie County reception

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CFD288

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I live in Cleveland TN using a Whistler TRX2 and a Larsen tri band antenna on a mag mount on my roof.

I recently programmed Puckett EMS into the radio and was pleasantly surprised to receive them loud and clear. My radio indicates it is receiving all the sites including the Whitwell/Marion Co site. So I decided to program the relatively new Marion and Sequatchie County sheriff"s systems from the Mobile Communications America system. So far other than a very occasional/intermittent transmission from both agencies I am not receiving them. Sometimes the transmission I receive is so chopped up as to be unreadable.

Does anyone know if these agencies have gone to full time encryption? If not I'm assuming that I'm not receiving their sites reliably enough for the radio to decode full time. I know I'm probably at the range limit for good reception. If I could confirm they are both 100% encryption I could stop my efforts to receive them.

TIA for all thoughts and comments.

Scotty
 

catch1

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marion county

i live in Marion county I use talkgroup 30 for sheriff and local cities works good i have puckett which i hear dispatch to vehicle but i don't hear hospital
 

richard4537312

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My TRX-1 will not reliably track that system, whether here in Cleveland or in Jasper. At least some of the online authorities say that the TRX-1 and TRX-2 do not truly track DMR Systems. Note that it will not allow you to program LCN's, and it's hard to see how it could track without that data. Try programming all of the frequencies of the Suck Creek Mountain site as conventional DMR frequencies, with Delay on each frequency set at 0. That's the old trick we used for the first analog trunked systems back in the mid nineties before there were any trunking scanners. It still works today with digital systems.
I use BCD436HP in Cleveland with outdoor antenna and JIM M-75 pre-amp to monitor this system.
 

KF4DKB

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My BCD536 is just picking up the occasional transmission also. I have a Mototrbo portable with the county frequencies in it and sit it next to the scanner to compare reception. I have been told by a county employee that they have not encrypted (yet) but are going to meet to discuss that option. It will reduce the effective range of their radios if encrypted. One thing I did notice that there are about nine more frequencies that are licensed to Mobile Communications of America that are not listed in the Radio Reference List. I'm wondering if those may be causing the missed calls?
 

CFD288

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Thanks to all who responded....thanks for your suggestion Richard will try setting up the Suck Creek site freqs as conventional DMR delay 0. I assume you have better luck with your BCD436HP in reliably receiving Marion/Sequatchie? When I do receive Marion or Sequatchie they boom in loud and strong with 5 signal bars then go silent for hours at a time. Glad to know it's just not me!

Scotty
 

CFD288

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Richard your suggestion about programming the Suck Creek Mtn site works like a charm and I'm receiving Marion/Sequatchie pretty well....however about half of the transmissions are unreadable, garbled and sounds like they may be using voice inversion...maybe I'm hearing their secure channel? Signal strength is 5 bars so I'm receiving them nice and strong. Thanks for your suggestion!

Scotty
 

INDY72

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If they ran secure on digital there is no garble like VI. There is only digital buzz and growl IF you are using a scanner that will pass it. Unidens will NOT pass encrypted audio unless you program it to do so. It will show the TGID, and flash ENC, then skip it. If your getting garbled your not getting the transmissions clearly. Whistlers and GRE you will hear that digital growling buzzing... Not any garbling. There is not any VI on digital, only various levels of encryption. You may be hearing them motorboating due to reception issues.
 

CFD288

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Thanks for your explanation milf....the funny thing is I will have a full 5 signal bars even during the garbled transmissions. Guess I'm not receiving their signal at 100% strength 100% of the time....maybe will do a little antenna tweaking.

Scotty
 

INDY72

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Bet its the mobile side your having issues with? Dispatch clear and the mobiles sounding garble? That would be logical. Would mean that the mobiles are not getting good into that site while you were monitoring. Otherwise it would sound like your talking about simulcast distortion, and I dont think that system is an simulcast, and I dont think we have ever had anyone complain of DMR simulcast issues yet....
 

CFD288

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Cleveland TN
I think you are on to something here milf....last night while listening I noticed a couple of times that I was hearing dispatch fine then an immediate garbled transmission...probably from a mobile. Since there are 2 counties using these frequencies I couldn't tell which I was listening to but think it was Marion Co. I did put a delay on the separate frequencies as it seems I can follow both sides of the conversation this way...as long as the mobile can hit the tower.

Thanks for your help,

Scotty
 

CFD288

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Originally I imported all sites on the Mobile Comms America as a trunked system then followed Richards suggestion of entering the Suck Creek Mtn site frequencies as conventional DMR and having better success with this approach rather than the trunked system. Occasionally will hear a transmission off of the trunked system but the conventional DMR freq setup seems to be working better.
 

KF4DKB

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After much monitoring, I am just getting the very occasional transmission on the BCD536. It usually comes in on the Police Net talkgroup 30. My portable is constantly busy with the Police Net traffic, but I'm only getting about 25% of it on the scanner. The RR file only has a very few of the talkgroups that are used, but some tgs are only used very infrequently, such as Marion Fire Net.
 

INDY72

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We only list what you guys send us. If you do not submit it, we dont have it. We admins can NOT stress this enough. If you have confirmed data, submit it, submit it, submit it. We literally say this daily.
 

JesseSVFD

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Sequatchie, Tennessee
Hello i currently have a TYT MD-380 And I An With One of the Vol Fire Departments And I Am Trying to Program Puckett EMS And The Sheriffs Office in my TYT DMR Radio With The color codes and all and i Need Help Can Anyone help me?
 

INDY72

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Not going to work. They are on a Trunked system and that CCR will not do trunking. The Tyts Baofengs etc are CONVENTIONAL ONLY. Yes they will do DMR.... But not Connect Plus, Capacity Plus, or Capacity Max trunked DMR . And if you buy an actual MotoTRBO radio, you will need to get your radio shop to program in the TRSs if your allowed to talk on them. If your just wanting to hear them, get an SDR set up, or buy an scanner.
 

KF4DKB

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