Reply to "Adventures in TMCC & Legacy... Trying to master the 455Khz track signal. I've built the test car, and it is finally working.."

rad400OGR Forum Member

swise posted:
Given the radio signal for TMCC, is there a ideal recommended antennal length?
BTW: I'm making one of these nifty devices too. Dunno why, since I haven't experienced any serious reception problem areas on my layout. But just for fun I guess.

I found that ~ 4"-5" of wire gave the same readings as the typical 1 1/2" - 2" metal antenna, which is found in many engines. The longer the wire the more signal will be picked up, but I want to simulate what a typical engine would see, so I kept it at 5"

For engines that persist to give you a problem, extending the engine's antenna with wire or 1/2" copper foil will definitely help in the overall performance of the engine. If you use copper foil, make sure it is securely attached to the sides of the engine with a silicone adhesive.

Bob D

NJ Hi Railers

3/1/168:13 PM

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