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Railroad/Railfan Monitoring Forum - This is the place to discuss monitoring railroad communications.

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Old 04-13-2018, 9:32 AM
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Default NXDN

I see that UPRR (WNBV267) and KCSRR (WPRJ834) have requested licenses utilizing NXDN in Louisiana, I guess this is in preparation for switching over. Anyone have an idea regarding when this could occur? Thanks.
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Old 04-13-2018, 12:02 PM
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Doubt any major switchover on the mainline will happen anytime soon...That's the short version.

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Old 04-13-2018, 2:29 PM
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Most railroads are modifying their licenses to add NXDN to them. Some are also adding NXDN capabilities to base, mobile and portable radios. With that said, the majority of rail operations are remaining on analog for the next few years at least.

While there are many scattered implementations of NXDN in yards and other insular situations the adoption for NXDN for Road operations is a ways away. Once PTC is completed then they will start looking at NXDN for road operations.

It could be several years before NXDN takes over for the majority of traffic railfans are interested in (Road operations).
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Old 04-13-2018, 9:23 PM
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Class 1 railroads have literally hundreds of thousands of radios. They have been deploying and programming NXDN gear for over ten years. The switch has not happened overnight, and will not happen overnight.
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Old 04-13-2018, 10:22 PM
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Quote:
Originally Posted by RADIOJAGUAR View Post
I see that UPRR (WNBV267) and KCSRR (WPRJ834) have requested licenses utilizing NXDN in Louisiana, I guess this is in preparation for switching over. Anyone have an idea regarding when this could occur? Thanks.
Years away...at best.
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Old 04-14-2018, 5:44 AM
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No, not years away for side facilities, or some ops in yards etc. NXDN has begun popping up in use at several yards, and side track facilities that use rail. Mainline yes it will be a few more years. Lets stop with the nay say as it is in use in some locations. If your going to say not for many years, best say it the right way, NOT for many years ON MAINLINE RR OPS! There is even currently an facility here in IN using NXDN that is on an live feed on Broadcastify.
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Old 04-14-2018, 7:12 AM
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Quote:
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No, not years away for side facilities, or some ops in yards etc. NXDN has begun popping up in use at several yards, and side track facilities that use rail. Mainline yes it will be a few more years. Lets stop with the nay say as it is in use in some locations. If your going to say not for many years, best say it the right way, NOT for many years ON MAINLINE RR OPS! There is even currently an facility here in IN using NXDN that is on an live feed on Broadcastify.
Now you're just being pedantic.

In general terms, widespread use of NXDN is years away.

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Old 04-16-2018, 6:46 PM
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The switch has not happened overnight, and will not happen overnight.
If it ever happens at this point. With the expected requirement to transition to 6.25kHz bandwidth now not happening in the AAR band, there may not be a widespread main line implementation. The only reason NXDN/IDAS was ever planned for was to accommodate the switch to 6.25kHz which was supposed to happen this year per the original 2007 plan. The capability will be there though.
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Old 04-18-2018, 7:32 PM
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only reason NXDN/IDAS was ever planned for was to accommodate the switch to 6.25kHz which was supposed to happen this year per the original 2007 plan.
Why did they choose NXDN instead of DMR?
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Old 04-18-2018, 9:57 PM
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Quote:
Originally Posted by pinballwiz86 View Post
Why did they choose NXDN instead of DMR?


Probably because NXDN does true 6.25KHz channels. DMR does not.


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Old 04-18-2018, 9:59 PM
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Probably because NXDN does true 6.25KHz channels. DMR does not.


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I think it was more of a snub of Motorola after Motorola snubbed the AAR by refusing to continue making a clean cab radio after the clean cab Spectra.

In other words, politics.

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Old 04-18-2018, 10:00 PM
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I think it was more of a snub of Motorola after Motorola snubbed the AAR by refusing to continue making a clean cab radio after the clean cab Spectra.

In other words, politics.

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Fair enough. Canít blame them for that at all.


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Old 04-18-2018, 10:19 PM
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Quote:
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I think it was more of a snub of Motorola after Motorola snubbed the AAR by refusing to continue making a clean cab radio after the clean cab Spectra. In other words, politics.
Basically...
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