Don't know about checking to see if it works other than hooking up to a receiver but I had a similar situation where my Airmar(?) transducer was connected to TackTick junction box. But my wireless TackTick receiver unit was not functioning, it turns on but does not read any info from the junction box. I had an older free standing Eagle 128 fishfinder
(same as Lowrance) and decided to use this for the time being as I plan to do major electronics overhaul
at some point but not now. I asked my marine
pro buddy for guidance and he said that I should be able to splice both units just to make sure I match the wire colors and crimp and insulate them well. Works like a charm showing depth
but does not show correct water
temp, even though both Airmar transducer and Eagle receiver have water
temp capabilities and corresponding wires. When the Eagle was used with it's native transducer (external kind) it was showing water temp OK.