[Antennas] Splicing Coax

2002年6月14日 08:23:58 -0500

Also well into the 'old fart' category.
I did/do it almost exactly the same.
But I roll the shield back into place over the splice and then carefully
wrap a few turns of small gauge copper wire around the braid.
I make it looked like "whipping" that is done to the end of stranded rope.
Then lightly solder all the way around the whipping and braid.
Repeat the process for the other end of the braid.
Then take the saved outer covering, split and replace.
Good tape job, and heat shrink over the whole thing.
But here is an important thing to remember.
When the coax is coiled and laying on the shack floor.
Make sure your NOT splicing one end to the other end...of the same piece of
coax.
Don't ask me how I learned to remember this!
----- Original Message -----
From: "Merv Stump" <[email protected]>
To: "Jan Reimers" <[email protected]>
Cc: "Antennas Email Group (E-mail)" <[email protected]>
Sent: Friday, June 14, 2002 8:13 AM
Subject: Re: [Antennas] Splicing Coax
> Gotta be a generation thing...
>> I tuned my first rig for maximum brightness into a 40 watt light bulb and
> then switched to the antenna; I used a double pole double throw knife
> switch to switch the antenna from transmit to receive; and every week I
> saved 50 cents from my 5ドル allowance to buy another crystal which cost
2ドル.95.
> With my credentials established as a charter member of the "old fart's
> club", I have to say I would not have believed that there was a ham
anywhere
> in the world who would not attempt to splice coax. Have you tried it? I
> have, it works, and I will do it again. Here's how:
>> First remove about a one inch piece of the dielectric and put it aside.
As
> carefully as possible role back the shield about 1 inch on each piece of
the
> coax. Remove the dielectric for 3/4 inch on each piece. Overlap the
center
> conductors by 1/2 inch and solder using as little solder as possible.
Now,
> take the piece of dielectric you put aside and split down one side; cut
the
> length to exactly fit the gap, and slip the dielectric over your spliced
> center conductors. Now as carefully as possible role the shields back
down,
> overlapping one with the other. Do not attempt to solder the shields
> together--just wrap tightly with good electrical tape extending the
wrapping
> about 1 inch over the ends of the cover on each piece. Finally, cover the
> whole thing with silicone sealant.
>> I assure you this will have less loss and less impact on swr than 2
pl259's
> and a barrel connector.
>> Regards, Merv W2OE
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