SPROG 2 v4 and BLI locos

bigGG1fan Dec 18, 2020

  1. bigGG1fan

    bigGG1fan TrainBoard Member

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    My SPROG 2 came in, and it is now attached to my programming track. I was finally able to get my Bachmann J programmed to use the long address, and I tweaked the sound settings so the whistle is much better (the J whistle sounds like the A's hooter, but that's a minor detail for on-board sound.)

    However, my BLI locos aren't acknowledging the commands from the SPROG. The command monitor shows "No Ack", and I get a 301 (no locomotive detected) error. Do I still need a programming track booster? I thought the SPROG 2 would have enough power for programming.



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  2. bigGG1fan

    bigGG1fan TrainBoard Member

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    Should have read more closely. SPROG 3 is recommended for decoders needing more current. Anybody need a lightly used SPROG 2?

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  3. BigJake

    BigJake TrainBoard Member

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    You might double-check on the SPROG forum on groups.io, before purchasing a SPROG3 to replace your SPROG2.

    I was under the impression that the limit for programming track current is the same for all SPROG devices, per the NMRI DCC standard (often violated by decoder vendors, especially on sound decoders). Programming on the main can use the full current of the model of SPROG you have, but you cannot read the existing register contents, before or after programming.

    I also found this on their FAQ page:

    Will SPROG II work with BLI Blueline decoders?

    Yes but you should use the SPROG console in DecoderPro to enable Blueline compatibility mode.​
     

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