I recently acquired a Spectra Low-Power VHF from eBay. I have the software to program it, and built a cable following the schematics on BatLabs. However, when I connect it, I get either a "BUSY LINE LOCKED" or "POWER FAULT" error on the RSS. The DATA light on the RIB will flash briefly before the power error appears. In addition, the display on the radio will say "PROGRAM" when I try to connect. I've quadruple-checked all of the wires in the cable and made sure they were going to the right places. Everything seems OK.