Marine Electronics Forum - Soldering back my furuno radar cable back together...?...

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jebsurf
03-22-2012, 03:02 PM
Make a long story short....cable got cut and I was wondering if it would hold up soldering it back together and then heat shrinking everything back. I'm sure it would hold up just fine right? Or am I just wasting my time? The cable is to a furuno rsb-0093 dome

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fishinmaniac
03-22-2012, 03:11 PM
I don't see why not ... whats the worst that could happen?

nitz
03-22-2012, 03:16 PM
You would have to reconnect the shield also.


jebsurf
03-22-2012, 03:18 PM
You would have to reconnect the shield also.

How would you do that? Solder that too?

semperfifishing
03-22-2012, 03:19 PM
I would stagger the wires..so you don't have one big bulge.

triumphrick
03-22-2012, 03:22 PM
You would have to reconnect the shield also.

MAKE SURE..of this...^^^^^^^^^^^^^^^^

Use a low watt gun and rosin core solder...Not what you use on plumbing.

It helps to "tin" each of the wires some first, by heating each of them alone and just touching them so solder flows into the wire. Then lay them alongside each other and just touch the tip of the gun to them. Solder should flow from the tinned wires to both of them. Shrink sleeve each individual wire. solder the shield together and shrink sleeve over that joint and the whole splice.

wingless
03-22-2012, 03:22 PM
The finished result would be superior if the joints are staggered to spread across several inches. The ~10 individual conductors could be grouped into joints at three lengths. I would use a soldered Western Union splice w/ adhesive lined shrink tubing.

The problem is the coax cable. The cut / spliced coax cable will have decreased performance. There will be an impedance change at the joint, decreasing the usable signal. For this reason I would toss the cable and get a new replacement part.

The outer shield should be restored. I would use both wire braid and foil to decrease signal degradation.

jebsurf
03-22-2012, 03:52 PM
Ok yeah I'm just going to sell the dome unit. I mean I really don't need it anyway. Anyone want to buy the dome..?... Hell I'll even throw in a free cut to size cable lol

wingless
03-22-2012, 04:00 PM
The finished result would be superior if the joints are staggered to spread across several inches. The ~10 individual conductors could be grouped into joints at three lengths. I would use a soldered Western Union splice w/ adhesive lined shrink tubing.

The problem is the coax cable. The cut / spliced coax cable will have decreased performance. There will be an impedance change at the joint, decreasing the usable signal. For this reason I would toss the cable and get a new replacement part.

The outer shield should be restored. I would use both wire braid and foil to decrease signal degradation.A better option is to relocate the connector from the short part to the long part.



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