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Commercial Radio Antennas - Please keep discussion related to professional, commercially used antennas and antenna systems for the two-way radio industry. Topics for the use of these antennas on amateur bands are accepted here.

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Old 04-21-2017, 11:26 AM
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Default Are 1/4" Heliax connectors interchangeable?

Are 1/4" heliax connectors cable type specific?

I have a spool of Andrew LDF1-50 and am making some jumpers for repeater/duplexer/amp.

Will connectors sold for FSJ1-50 work on LDF1-50 (both 1/4")?

Specifically I am trying to find PL-259 and BNC male connectors for LDF1-50 jumpers.
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Old 04-21-2017, 12:08 PM
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Would this work on LDF1-50?

41SP
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Old 04-21-2017, 1:17 PM
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The standard PL-259 UG-176 adapter for RG-8X and RG-59 is a perfect fit for FSJ1-50.
prcguy
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Old 04-21-2017, 1:33 PM
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Quote:
Originally Posted by prcguy View Post
The standard PL-259 UG-176 adapter for RG-8X and RG-59 is a perfect fit for FSJ1-50.
prcguy
Right. And I have a spool of LDF1-50.

So I am asking if I can use the FSJ1-50 connectors on my LDF1-50.
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Old 04-21-2017, 2:09 PM
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I think FSJ is about .25 dia for the shield and LDF is a little bigger at .31 or something. For LDF1-50 you would have to drill out the adapter or go the expensive connector route.
prcguy


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Right. And I have a spool of LDF1-50.

So I am asking if I can use the FSJ1-50 connectors on my LDF1-50.
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Old 04-21-2017, 2:17 PM
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Quote:
Originally Posted by prcguy View Post
I think FSJ is about .25 dia for the shield and LDF is a little bigger at .31 or something. For LDF1-50 you would have to drill out the adapter or go the expensive connector route.
prcguy
That's too bad.

Need to find somewhere to get BNC male and PL 259 that will fit on LDF1-50
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Old 04-21-2017, 3:56 PM
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BNC could be a problem but a 5/16" drill bit, a drill press and drill press vice will easily modify lots of UG-176 adapters.
prcguy
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That's too bad.

Need to find somewhere to get BNC male and PL 259 that will fit on LDF1-50
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Old 04-22-2017, 8:05 AM
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BNC could be a problem but a 5/16" drill bit, a drill press and drill press vice will easily modify lots of UG-176 adapters.
prcguy
I may try this. Does the center pin need to be drilled as well?
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Old 04-22-2017, 10:24 AM
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No, the PL-259 part will work with a center conductor up to about 10ga and the 1/4" Heliax should be no bigger than that.
prcguy

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I may try this. Does the center pin need to be drilled as well?
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