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Re: Narrow Band Radio? Hobart Intermodal
Author: fkrock
Date: 12-16-2011 - 11:09

One thing to keep in mind is that the railroad industry is not a large enough customer to justify designing new radios. The land mobile communications industry supplies many more customers than railroads ever will. Therefore railroads will continue to get hand-me-down technology from land mobile. Land mobile eventually will go all digital in my opinion.

Although a spectrum analyzer may show wider frequency use than a narrow band analog signal, digital signal processing technology allows receiving the digital signal without problems from adjacent channels. Therefore digital signals make much more efficient use of spectrum space.

One rule for radios has always been listen before transmitting. So a crewman should not attempt to transmit until hearing the magic words "detector out."

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Subject Written By Date/Time (PST)
  Narrow Band Radio? Hobart Intermodal RRR 12-13-2011 - 18:36
  Re: Narrow Band Radio? Hobart Intermodal Mark 12-13-2011 - 21:38
  Incredible waste of money! West Coast Engineer 12-14-2011 - 15:22
  Re: Incredible waste of money! Shortline Sammie 12-15-2011 - 19:39
  Re: Narrow Band Radio? Hobart Intermodal RRR 12-14-2011 - 18:45
  Re: Narrow Band Radio? Hobart Intermodal Mr. Guy 12-14-2011 - 21:22
  Re: Narrow Band Radio? Hobart Intermodal fkrock 12-15-2011 - 09:48
  Re: Narrow Band Radio? Hobart Intermodal RRR 12-15-2011 - 13:34
  Digital radios: A possible death trap RBK 12-15-2011 - 16:16
  Re: Narrow Band Radio? Hobart Intermodal West Coast Engineer 12-16-2011 - 13:15
  Re: Narrow Band Radio? Hobart Intermodal Mark 12-15-2011 - 18:07
  Re: Narrow Band Radio? Hobart Intermodal fkrock 12-16-2011 - 11:09
  Re: Narrow Band Radio? Hobart Intermodal RBK 12-16-2011 - 13:32
  Re: Narrow Band Radio? Hobart Intermodal Mistertower 12-16-2011 - 16:34
  Re: Narrow Band Radio? Hobart Intermodal RRR 12-16-2011 - 17:23
  Re: Narrow Band Radio? Hobart Intermodal Uninformed 12-17-2011 - 10:52
  Re: Narrow Band Radio? Hobart Intermodal Shortline Sammie 12-17-2011 - 11:42
  Re: PD Channels in LA Basin Explained Mistertower 12-18-2011 - 15:19
  Re: PD Channels in LA Basin Explained RRR 12-21-2011 - 16:18


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