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Short jumper cable.

P25Radio

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Thoughts here, should a short jumper be used between the antenna and the heliax cable to the antenna? Antenna is mounted to a Rohn 25 tower top piece with a mounting sleeve, Or should it be just plugged into the antenna and then sealed. Cable will be ran down the outside of the tower and along one of the legs. Just wondering if that little slight jog to the antenna should have a jumper? ANDREW 1/2" HELIAX SUPERFLEXIBLE CABLE FSJ4-50, 75 Foot Length
 

K4EET

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P25Radio, using an Andrew's superflex jumper will relieve the stress put on the connections due to the rigid Heliax. It is usually a good idea for most installations. It also makes it easier to make the connections.
 

P25Radio

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I do have some 1/4 super flex I think that should work in the 153-159 mgz.
 

P25Radio

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Install done, I just used the super flex 1/2". Should last for a long time.
 

prcguy

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I would say RG-214 is more flexible than 1/2" Superflex Heliax and it also costs a lot more if its got silver plated braid. I was just looking at some from DX Engineering, buying in bulk with a 500ft spool comes out to $6.77 per foot.


Isn't 1/2" superflexible just as flexible as RG214? Most places I've seen use 1/2" as the jumper cable to a 7/8" or 1.1/4" coax.

/Ubbe
 
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