spliceing transducer cable

Pinched the trans. wire while lowering trolling motor. Now it is acting erratically. Can I cut a few inches off at the pinch and splice it.

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Originally Posted by 65pontiac

Pinched the trans. wire while lowering trolling motor. Now it is acting erratically. Can I cut a few inches off at the pinch and splice it.

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Yes. Solder all the conductors, including the shield. Be sure to seal them well.

Thanks CatFan

I always thought that it could not be done - but as CatFan stated it can. I am not soldering savvy so I enlisted the help of my Bro In-Law. He had an electrician friend do the work. He put a piece oh heat shrink tubing on the cable, made the connections, soldered them, then covered the area with the heat shrink and sealed it up. I went one step further and applied several coats of liquid electrical tape over the entire area. Nice and water-tight! So far so good.

Good Luck to you!

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Originally Posted by CatFan

Yes. Solder all the conductors, including the shield. Be sure to seal them well.

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How do you solder the shield? Thats the stuff on the outside that looks like tinfoil? I would think that would be hard to work with. Got some details CatFan?

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Originally Posted by wilbur

How do you solder the shield? Thats the stuff on the outside that looks like tinfoil? I would think that would be hard to work with. Got some details CatFan?

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It isn't as easy as the wires. I twist the ends of each piece so it's like a piece of wire, then gently twist them together and solder it like a wire. It's sometimes plastic-coated, which makes it hard to work with. The copper braid is much easier, but I've only seen one unit from the mid-80s that used copper.

I'll be real interested to hear how that works. I worked with radar's and communication systems most of my life and power transmission was always associated with wave length which was associated with the physical length of a cable feeding an antenna. Too long or too short resulted in reflected power, reducing the power output. They may have some new way of automatically compensating for these variables now, I don't know. I know it can be soldered physically but whether you get a change in wavelength will be interesting. Reflected power can also cause arcs in the cable.

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Originally Posted by FAADAN

I'll be real interested to hear how that works. I worked with radar's and communication systems most of my life and power transmission was always associated with wave length which was associated with the physical length of a cable feeding an antenna. Too long or too short resulted in reflected power, reducing the power output. They may have some new way of automatically compensating for these variables now, I don't know. I know it can be soldered physically but whether you get a change in wavelength will be interesting. Reflected power can also cause arcs in the cable.

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This isn't RF. The signals going going through the cables are pulses and DC voltages.

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Originally Posted by CatFan

This isn't RF. The signals going going through the cables are pulses and DC voltages.

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This is what I keep telling folks. If the cable was calibrated with the transducer, you couldn't buy a transducer cable extension. Makes sense don't it.

I spliced a HB SI cable for DonG and it works fine.

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Originally Posted by Cane Pole

This is what I keep telling folks. If the cable was calibrated with the transducer, you couldn't buy a transducer cable extension. Makes sense don't it.

I spliced a HB SI cable for DonG and it works fine.

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That was last year and it is still working fine...