firstascent2002
Well-Known Member
Do I need to get a male and female plug of can I just solder the inner core together, insulate with heat shrink then solder the outer braid and insulate?
J
J
Joining cut VHF cable
- Thread starter firstascent2002
- Start date
exfinnsailor
Well-Known Member
Sounds like you know what your doing . Keep the inner from the outer and it will work .. Solder the inner cable .. Tape over and join the outer braid .. Then tape over everything ..
Call the Coast Guard for a radio check
Call the Coast Guard for a radio check
Alpha22
Well-Known Member
2 plugs and a back to back joiner would be my solution. Then wrap with self amalgamating tape.
William_H
Well-Known Member
Joining Coax cable
The pedants and the experts will tell you that the discontinuity of the cable characteristics will cause a change in characteristic impedance and so will cause signal to be lost. While this is correct the effect is more significant at higher frequencies. So yes it will be fine.
Of greater concern is the robustness of the join and its resistance to moisture entry. olewill
The pedants and the experts will tell you that the discontinuity of the cable characteristics will cause a change in characteristic impedance and so will cause signal to be lost. While this is correct the effect is more significant at higher frequencies. So yes it will be fine.
Of greater concern is the robustness of the join and its resistance to moisture entry. olewill
pteron
Well-Known Member
A useful trick is to strip the inner insulation from a bit of spare cable and use that over the join to make sure the gap between inner and outer remains constant.
stav
Well-Known Member
I would add a little tin foil in contact with the outershield and wrapped around to maintain the shielding,or put the join in a little metal box. After heat shrink a spot of super glue to seal the ends.
john_morris_uk
Well-Known Member
William, before I am accused of being an expert or a pedant, I 100% agree with you. It sounds like the OP knows what he is doing and it will be fine.
If the join was out in the open and subject to sea-air and salt laden spray, I would be MUCH more anxious about keeping the water out than any impedence mismatch along the line...
Therefore I hope that the join he is describing is going to be in the warm and dry.
ccscott49
Well-Known Member
I have joined coax like this many times, even outdoors, but I use a final sleeve of heatshrink, with heat activated glue inside, brilliant stuff, use it for every joint, even bilge pump joins, never had a failure.....................yet!
john_morris_uk
Well-Known Member
+1 - that heat activated glue heatshrink stuff is excellent and makes very good waterproof joints. I remember having to use electrical tape follwed by self amalgamating tape.