The problem with RG-142 is that the solid center conductor is
easy to displace when the coax is bent, especially sharp bends,
and particularly short lengths such as less than several feet.
It's best not to bend -142 short jumpers more than necessary. You
can tell when the center conductor is displaced by examining the
center pins in the end: it'll be offset on one end compared to the
other. (This is especially obvious when BNC or SMA, the most
common connectors used with -142, are used.) Otherwise, -142 is a
good coax and readily withstands high power.
Steve, K0XP
On 11/11/2024 10:44 AM, Dave w6de
wrote:
Correction
to my previous post.?
I do not use RG-400 jumpers, I use RG-142 coax
jumpers.
Both
RG-400 and RG-142 have similar specs with the exception of
RG-142 has a solid center conductor and RG-400 has a
stranded center conductor.?
I find the flexibility of the center conductor RG-142 to be
suitable for short connections in the shack.?
If I were to make a tightly wound choke RG-400 would
be the appropriate choice.
?
73,
Dave,
w6de
?
?
?
I
buy RG-400 jumpers for all my inside the shack
interconnections.?
Entering the shack, I have a mix of N connectors for
Heliax LDF4 Superflex and PL-259 connectors for RG-213 coax
for antenna connections/terminations from the outside
antennas.?
When I buy the RG-400 jumpers I specify the cable
connectors for each end to keep from using adapters inside
the shack.
?
73,
Dave,
w6de
?
?
Yes that RG-400 is great and can make
sharp bends if need be.
?
On Mon, Nov 11, 2024 at 1:58?AM desmond
auld GI0UTE via <desauld=[email protected]>
wrote:
I use rg400 coax. Same size as rg58,
but teflon insulated and ok for 3kw, or even more on
ssb. Not cheap... Thanks des.?
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