Gp1971 f

fvsachiko

New member
I currently bought a gp1971f my old school 7000f finally retired.
Im using the same thru hull transducer but having a hard time making sure im pairing new unit with older transducer. I think I have a 525t-bsd, but previous owner swears it was a 1kw transducer.
How do I exactly know what transducer i have? There is no tag and markings on cable are no help. Cable says "airmar".

I did hook it up and test it , need to fine tune it more, but second question. Would i ruin the transducer if I choose a 1kw setting on the 1971? Like if I picked b258 on the 1971?
 
Choosing a 1kW setting for a 600W transducer can cause damage.
Can you post some photos of the transducer, both the wet and dry side, with measurements? We can probably narrow down some options for you.
 
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