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Old 18 March 2011, 05:24   #1
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Damaged VHF antenna cable - what to do?

Have managed to damage my VHF antenna cable about a metre from the back of the VHF. Was thinking of just taking the fitting off the cable, cutting off the damaged metre of cable and putting the fitting back on and plugging back into the VHF?

I have heard that the cable length is "balanced" with respect to the wavelength transmitted, but since the radio has many different frequencies, will this be significant? Have had a few conflicting comments on this - so thought I should get a few more!! :-D

Or should I just rip it all out and buy a new VHF antenna....?
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Old 18 March 2011, 05:33   #2
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If you are buying the antenna from us then definitely a new one.

But seriously, your plan to cut back and re-fit the plug is sound.
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Old 18 March 2011, 07:36   #3
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There is a minimum length of cable you need to avoid issues, but it's pretty short, something like a metre or so IIRC
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Old 18 March 2011, 11:15   #4
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Relief!!

Thanks for the prompt response folks - appreciated!!
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Old 18 March 2011, 12:20   #5
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Quote:
Originally Posted by mike-m View Post
I have heard that the cable length is "balanced" with respect to the wavelength transmitted,
Next time this guy offers his advice, ignore it!
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Old 18 March 2011, 21:47   #6
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Quote:
Originally Posted by mike-m View Post
I have heard that the cable length is "balanced" with respect to the wavelength transmitted
B^llcks!

Your plan is fine assuming the cable is long enough, if it isn't, cut it back, fit a PL259 plug, then a double ended SO239 and a metre of replacement cable with a PL259 on each end. But better to avoid that if possible as every connection introduces loss.
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Old 25 March 2011, 18:59   #7
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Cable cut back - still reaches VHF - fitting attached and plugged in.... radio check - loud and clear! Ta folks....

Mike
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