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Do you have other BD20's connected to Atlas' universal signal control board in other areas of your layout that work? Just this one BD20 is not working?

Bill, The typical method for detection placement is for it to be on "the power to the block" rather than on "the power to one section of the block". I'll take the time to describe this further.

Definitely have 5 volts. On 9/27/21 10:24 AM, John Eldridge via groups.io wrote:

Thanks Bill, Based on your reply, confirming how this BD20 is connected, you said 3 wires: “one logic, one common, one power”. Have you measured the “power” voltage @ the BD20 terminals

Don, And yes, I realize you're not working with a Digitrax system, but the concept is the same. However the booster 'learns' what phase of signal to generate, you'll have to swap the

Don In the early days of DCC, I had problems with phasing on my Digitrax layout because I was sloppy with Telco vs Data cables. Since the only way to 'rephase' a Digitrax booster is to

John, I'm connecting the BD20s to Atlas' universal signal control board via three wires, one logic, one common, one power. the Atlas boards in turn have two other posts that use 5 volt

Hi Bill, Have been following this topic of your “Spacing between NCE BD20 detectors” question, and have some questions that I have not seen asked or answered. 1. Are you using a NCE AIU to

I have heard that adding a resistor to a freight car axle and/or caboose also helps with detection. Train length will dictate the number of resistors needed depending upon block length and

Don, I know that adding a 5-volt connection to posts 1 and 4 on a BD20 will permit the onboard LED to light or not depending on block traffic. I've also read, as you suggest, that it

I've connected up new EasyDCC boosters with auto reversing to my layout. Previously, I used a toggle switch on the panel to control the phasing of the power in the reversing loop. Auto reversing

Bill, There's often confusion between the terms wire, cable, and pairs. Many people call a multi-conductor cable a "wire", when it's a group of wires. Also, "speaker wire" is really a pair, as is "zip

I've been pretty scrupulous about having feeders attached to every section of track. For my amusement this afternoon, I'll be taking a close look at every wire connection. Unfortunately, I

Interesting. Thanks for forwarding. On 9/26/21 11:23 AM, David McBrayer via groups.io wrote:

Bill, I believe you said that your BD20 was not detecting a train in the block. The pot is for desensitizing the BD20. So that may not help you. I did notice in the BD20 instructions where it says

Bill, I don’t know all of the in’s and out’s of your layout. NCE has an article on their website that discusses a BD20 detection challenge that reads similar to yours at this link,

Allan, I've tried a variety of "winding" strategies, but without success. When I talked with NCE's technical support fellow the other day, he was pretty skeptical about the feasibility

Hi Bill, If you haven't tried it already, try putting more than one turn through your BD20. Literally just loop it around and go through it again. This increases sensitivity of the BD20. I don't

I want to keep my Atlas signal blocks coterminous with my railroad's four power districts, each of which is approximately 25 feet in length.  Initial experimentation indicates that placing one NCE