MPT system in Mohegan Sun Casino

Unitrunker · #1 (**permalink**) 07-05-2006, 11:20 PM

I'm trying to work out the band plan for this MPT system.

The left column are the frequencies currently listed in the RR DB.
The middle column is the actual MPT channel number from the control channel.
The right column is my best-guess computed frequency using ...

Base=935.0 Step=12.5khz Offset=1

935.1500, ?, ?????????
935.7000, 57, 935.7000
936.2125, ?, ?????????
?????????, 92, 936.1375
936.6625, ?, ?????????
937.1625,174, 937.1625
?????????,237, 937.9500
938.2000,257, 938.2000
?????????,292, 938.6375
?????????,314, 938.9125
939.2125,338, 939.2125

935.15 Mhz is the control channel. I didn't catch the channel number for it so I'm not too worried over that. The other channels seem to line up - except for four. They aren't listed in the RR DB. Either (a) they are missing from the DB or (b) they are input channels.

Can someone confirm either (a) or (b) above - or suggest an option (c) ??

-rick

cg · #2 (**permalink**) 07-06-2006, 09:55 AM

I can make a trip down there.
Can I do it with the Unitrunker ...27? if not which program do I need to run?

chris

oilmillcharlie · #3 (**permalink**) 07-06-2006, 10:28 AM

Quote:

Originally Posted by cg

I can make a trip down there.
Can I do it with the Unitrunker ...27? if not which program do I need to run?

chris

Chris,

I use Trunkview using the Base, offsets and control channel discussed above. I can e-mail you a log file if you are interested.

B.K.

cg · #4 (**permalink**) 07-06-2006, 01:46 PM

I was just looking to get Rick the info he needed. If he has all that can be gathered by a trip down there thats great, if not I am willing to go. I usually don't try to listen to them while I am there.

chris

Unitrunker · #5 (**permalink**) 07-06-2006, 10:41 PM

Quote:

Originally Posted by cg

Can I do it with the Unitrunker ...27?

Thanks Chris. I wouldn't recommend that version for MPT. It's useful for verifying your set-up for decoding MPT but not much else. Future versions will perform much better. For this thread, I want to confirm the channel data in the RR database.

Quote:

Originally Posted by oilmillcharlie

I use Trunkview using the Base, offsets and control channel discussed above. I can e-mail you a log file if you are interested.

Thanks BK. That's a good sign. Yeah, if you can post the channel information as logged by TV - that would be great to have. If it differs from the RR DB and you're able to verify the voice channels - you may want to submit the data to update the database.

-rick

oilmillcharlie · #6 (**permalink**) 07-07-2006, 08:50 AM

Unitrunker · #7 (**permalink**) 07-07-2006, 09:25 PM

Quote:

Originally Posted by oilmillcharlie

Here is what I logged. The CC may have changed to ch 174 937.1625 haven't hooked it up to verify but it sounds that way. Also a partial copy of the log follows.

Thanks BK. That's more than what is currently in the database (& answers my question). If you are able to verify these (I'm too far away) you may want to submit them to the RR DB.

-rick

oilmillcharlie · #8 (**permalink**) 07-08-2006, 10:59 AM

Quote:

Originally Posted by rfmobile

Thanks BK. That's more than what is currently in the database (& answers my question). If you are able to verify these (I'm too far away) you may want to submit them to the RR DB.

-rick

Didn't I read here that Chris was having problem with D/B Admin. not correctly posting his trunking data???

B.K.

cg · #9 (**permalink**) 07-08-2006, 02:51 PM

It has been corrected. Some of the posted info was FCC data dump without understanding how the trunk system in question worked.

chris

EricCottrell · #10 (**permalink**) 07-08-2006, 04:14 PM

Hello,

Off Topic, but anyone who is down in the SE Ct area near the Casino please try to copy the MPT-1327 systems on 451.9625 and 452.2625 as well. I got surprised last May when I came across them during lift conditions. Likely some distance away in Cranston, RI and Exeter, RI but you never know. There could also be another system closer to CT on UHF.

A rare trunked radio system type in the US but Southern New England has at least three!

73 Eric

campd715 · #11 (**permalink**) 07-09-2006, 09:58 PM

Eric,

I gave 452.2625 a go and all it displayed was:

sys:0x0089

Then the following two lines repeated over & over. No voice heard.

-Bcast:registration parameters
-Bcast:call maintenance

Dennis

EricCottrell · #12 (**permalink**) 07-09-2006, 10:11 PM

Quote:

Originally Posted by campd715

Eric,

I gave 452.2625 a go and all it displayed was:

sys:0x0089

Then the following two lines repeated over & over. No voice heard.

-Bcast:registration parameters
-Bcast:call maintenance

Dennis

Hello,

Thanks. It is likely a business system that is only active during weekdays. The great thing about casinos is they are 24/7 or close to it. If you can hear it in CT then it must be in RI or Eastern CT.

73 Eric