Long range reception?

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Long range reception?

Postby CPSK » Mon May 18, 2015 8:22 pm

I live near the CSX River sub qr 8 in Teaneck NJ. I use a Yaesu VX-150 or Yaesu FT-60R, with a Ringo Ranger ARX-2B on the house up about 35ft from the ground. I am about 85ft above sea level here.
On most days I can hear action south past Newark, and north to about CP 43 Fort Montgomery. Of course all depends on the radio and antenna on the locomotive, weather conditions, and season.
I am able to hear the detectors at Bogota NJ (mp 7.2), Orangeburg NY (mp 20.5) and Stony Point (mp 38.5).
The farthest north on the River sub I have ever heard the locomotive crew (readable) was CP45. I can often hear the dispatcher's radio farther north of that, talking to trains at Newburgh to Milton, but never heard a train from that far north.

This evening, listening on my FT-60R, I heard the dispatcher giving a train order to a train I could not hear (although I thought I might have just barely heard an unintelligible signal from that train) and referring to mile points "QG" ( I don't recall the mileposts). Knowing that QG is not the River sub, I looked it up to find that's the Castleton sub, running from the NY/MA line to CPSK.
It seems odd that I should be able to pick up anything that far north, and yet on the 2m amateur band there does not appear to be anything going on. When the band is open, I can usually hear the repeater in Albany, and sometimes one in Rhode Island, and another in Massachusetts. In addition, I found nothing on the 2m propagation map that would indicate a band opening.
So, I'm wondering whether I might have been hearing the dispatcher's radio from somewhere around Newburgh (which pretty much matches the signal quality I heard tonight), giving the train orders to a northbound train that would be heading onto the Castleton sub. Usually the orders aren't given so far in advance, but who knows.
The signal I heard did not flutter like those during a long-distance band opening (tropospheric ducting) do, so I'm thinking that my guess is correct.

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Re: Long range reception?

Postby lakeshoredave » Sat Mar 04, 2017 9:56 pm

Holy cow that's some awesome reception!
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Re: Long range reception?

Postby Rockingham Racer » Sun Mar 05, 2017 7:47 am

I believe it's a called a skip signal. I've had one that came from the UPRR about 300 miles from me.
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Re: Long range reception?

Postby Engineer Spike » Wed Feb 07, 2018 8:07 pm

Some of the railroad bases can be linked, so two mobile radios can talk over long distances, just like we do on 2m. Maybe the line of sight FM signal was just right. I’d suggest that you pm member CPF363. He is an electrical engineer, and specializes in radio design.
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Re: Long range reception?

Postby D Alex » Thu Apr 05, 2018 6:14 pm

I've experienced FM skip before, once when I was in the hill country of Texas, I clearly picked up an FM station I knew from Windsor, Ontario. I assume the thunderstorms all over the midwest that day had something to do with it.
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