QUOTE: Originally posted by Hugh Jampton AC track circuit frequencies, possibly jointless if there's lots of crossings close together.
Larry Resident Microferroequinologist (at least at my house) Everyone goes home; Safety begins with you My Opinion. Standard Disclaimers Apply. No Expiration Date Come ride the rails with me! There's one thing about humility - the moment you think you've got it, you've lost it...
Originally posted by TheAntiGates Living nearby to MP 186 of the UPRR Austin TX Sub Reply Hugh Jampton Member sinceSeptember 2003 From: Southern Region now, UK 820 posts Posted by Hugh Jampton on Thursday, April 7, 2005 5:29 AM AC track circuit frequencies, possibly jointless if there's lots of crossings close together. If they're new probably a few teething troubles. Generally a lurker by natureBe AlertThe world needs more lerts.It's the 3rd rail that makes the difference. Reply Anonymous Member sinceApril 2003 305,205 posts Radio frequency and crossing gates Posted by Anonymous on Wednesday, April 6, 2005 11:07 PM Walking along the former wabash main here, I recently noticed short sections of rail near gated crossings had been spray painted blue, and had sensor wires of some sort running into a plate shaped box mounted between the rails... Stenciled on each of the several plates located nearby (multiple crossings) was what appeared to be long wave radio frequencies, such as "280 Hz Ross Avenue" or "318 Hz Smith Rd"...and a quick inspection showed that each cross road had it's own frequency. I suspect this to be a fairly recent installation, since the paint and all were so sparkling new looking, and the dudes in the white trucks were just out there the day before working on the rails and gate control cabinets. Well, I was just a casual observer, sitting back and watching a few freights,...until I noticed the gates triggering for no reason,...not once,...not twice, but 3 times within a 10 minute period... Stopping quite a few cars in the process... Are these new gate controls that prone to "falsing"? Reply Edit Join our Community! Our community is FREE to join. To participate you must either login or register for an account. Login » Register » Search the Community Newsletter Sign-Up By signing up you may also receive occasional reader surveys and special offers from Trains magazine.Please view our privacy policy More great sites from Kalmbach Media Terms Of Use | Privacy Policy | Copyright Policy
Living nearby to MP 186 of the UPRR Austin TX Sub
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