ind224
Member
161.340 Avon Big Four
Is this the new digital? Noticed it last night. Nasty chirp burst squeal sound.
Is this the new digital? Noticed it last night. Nasty chirp burst squeal sound.
NDXN on the Railroads
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My question would be what is the use of that frequency? Is it a road channel or something other use?
ind224
Member
Avon Indiana hump frequency
NXDN Useage
Given the limited use of that frequency, it wouldn't surprise me if it was NXDN modulation. I've heard a digital modulation on one of the BNSF MRAS (mobile telephone) channels here in Denver that I suspected was NXDN. All the radio showed was 'DG' modulation... Bits and pieces here and there I guess.
Given the limited use of that frequency, it wouldn't surprise me if it was NXDN modulation. I've heard a digital modulation on one of the BNSF MRAS (mobile telephone) channels here in Denver that I suspected was NXDN. All the radio showed was 'DG' modulation... Bits and pieces here and there I guess.
Has the Long Island Railroad changed to the ICOM or kenwood digital capable radios know that the road channels are analog just curios if they swapped to digital for support functions.
slapshot0017
Member
Last time I saw metro north had Harris mobiles on the train and Motorola portables so it could be the same.
NXDN On The Railroads
The county agency I retired from a couple of years ago was (and still is) an all VHF radio system. Several years ago Motorola stopped supporting their VHF radios so the county had to seek other suppliers for their VHF radios. They are now using Kenwood and Icom commercial radios. As far as I know, these radios are not digital capable. The radios the railroads are going to have the capability of being switched to the NXDN protocols if they make the switch.
The county agency I retired from a couple of years ago was (and still is) an all VHF radio system. Several years ago Motorola stopped supporting their VHF radios so the county had to seek other suppliers for their VHF radios. They are now using Kenwood and Icom commercial radios. As far as I know, these radios are not digital capable. The radios the railroads are going to have the capability of being switched to the NXDN protocols if they make the switch.
Most modern icom or kenwood are digital compatible. Depending on model it can have a board installed to run nxdn/Idas or p25 format or some only will allow either the nxdn Idas format or p25 and won't allow for all 2/3. Basically majority are ready and can do one or either them formats. Idas and nxdn are basically same thing. I got a icom radio with the board pre installed so if any rail road went digital in a yard or road I'd have no problem monitoring. Do you recall your former agencies model of radio they replaced motorola depleted contract with?
Ummmm....
They've been deploying NXDN capable radios for years.
You do know that Kenwood and Icom produce more than one model of radio, right? Just because your former department is using analog only doesn't mean that the railroads aren't deploying digital capable radios.
IDAS is NXDN. They're not "basically the same thing", IDAS uses the NXDN digital protocol.
slapshot0017
Member
God I hope many people sees what you just said burner cause I have been saying that forever and no one listens...
slapshot0017
Member
Kenwood does both ICOM only does 6.25
kayn1n32008
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Actually one company has released firmware to allow it to use the others trunking protocol.
W9NES
Member
We do have 161.550 as a NXDN channel here in the Indianapolis,Indiana area for railroads.
Metro North or any of the MTA RR is not going NXDN all the new M8 rail cars are coming new with harris 7100IP radios and the older stuff was retro fitted with CDM1250
That sounds more like an EOT device data burts
NDXN On The Railroads
I agree, that sounds like an EOT...
I agree, that sounds like an EOT...
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