LMR-400

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작성자투달러 조회 10회 작성일 2021-07-04 00:47:03 댓글 0

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LMR400


Grey Ghost : Crimping is cheating.
OFFICAL VA3DLO : Question is lmr 400 good for minus 40 celcious temps?
David Slusser : Wish you posted links to all the parts/tools used in this video
Carlos Pro : you got a part number for the weather boot ?
Radiowave : Thanks for posting. The cost of these tools for the individual ham radio operator is way too high. Nice system though.

How To Make A N Male Crimp Connector - LMR 400 #665

https://www.showmecables.com/catalog/product/view/id/40934/s/n-male-crimp-connector-lmr-400-belden-9913/

ShowMeCables presents a dynamic video about terminating a N Male Crimp Connector. As you watch this video you'll learn how to terminate a this N Male Crimp Connector. You'll need to know how to solder for this product requires some soldering.

Product http://goo.gl/qcK8C breakdown:
N connectors are a threaded coaxial connector and are known for being a durable, weatherproof connector. N connectors are commonly used for RF applications and can carry frequencies up to 11 GHz.

Features:

Fits LMR-400 \u0026 Belden 9913
Male
Straight
Crimp style
50 Ohm
Nickel plated brass

For more information please visit http://www.showmecables.com https://www.showmecables.com/blog
BeachSandInspector Technologies : i am glad to see you do not double crimp, it drives me crazy when people just have to ruin a decent termination by weakening the crimp when they double crimp (the excuse is "it looks better" atcually as a telco tech I know it causes mechanical weakness and in digital ccts it causes bit errors).
Barricade : I know better way to do it. You put sleeve first, its just easier. For the pin; melt little bit of solder inside the pin, put on the conductor and hit it with small butane torch. The pin will nicely weld to the core. I made a lot of cables like that for RF installations.
Dan Nelson :  While I'm sure terminating coax assembles like that for hobby use is acceptable in the real world where lives are on the line that cable would have gone in the reject pile. Obviously when it comes to coax and wire terminations the aerospace industry and military have much higher standards than hobests do.  

The two biggest mistakes made where folding the braid back and not making sure the center pin was seated firmly against the dielectric.  This is not that important at 7mhz, but it's critically important  above 100mhz.  It's also of absolute critical importance that the braid never be disturbed.  If the cable is intended to be used on VHF and above then the braid should be man handled as little as possible so that it retain it's weave which will preserve the minimum coax specifications. FURTHERMORE...  NEVER !! under any circumstances !!! fold the braid back or nic the center conductor or braid with a sharp object.

 The proper technique is to place the ferrule on the coax first. If you don't have a three level stripper then wrap a piece of tape around the braid marking the second trim line fold the braid to be cut back over the tape and then use a sharp pair of wire cutters or nail trimmers to trim the braid at flush with the tape.

 After trimming the braid simply slide the tape off the braid.. Now the  technique to prep the braid is to grasp the center pin and dielectric in one hand and rotate it in a circle by slightly flexing the dielectric  while holding the outer jacket near the base of braid, This will flare the braid out just enough to allow you to slide the connector into place without disturbing the weave of the braid.

Then again this is only important if you are using the connector above 100 mhz and want to have the lowest loss termination with no impedance bumps. If you're using it on HF well then it's over kill,  HF is pretty much childs play.  You can probably get away with using a pocket knife as a stripper and and old pair of vice grips as a crimper for HF connections and no one would know the difference.          
balaji hustler : hi i need a low loss coaxial cable for my 24 dbi parabolic wifi antenna. lot of ppl seems to be  LMR 400 but it is not available in my city. so how about rg 213 ? i am going to be using 30 feet cable. the velocity prop of rg 213 and lmr 400 is 66% and 86% respectively. so will there to too much signal loss ??
Crestoify : Hey there great video, I just have a question and I hope you respond
What type of cable where used? and what do you guys think would be the best cable for an outdoor wireless dish installation? Thank you! I'm new to these stuff :)

PL259 install RG8 - LMR400 - RG213

30 year veteran Amateur Radio operator and Electrical Engineer shows you his methods for installing a PL259 on Coax.
As seen on www.N4NRW.com


Music: 'Cash Rules' \u0026 'For your Thoughts` by BANKRUPT B
Dale Adams : Thank you for this demo.. It is a much precise and cleaner way. I am sure that it reduces the chances of shorts.
jjmonns : Excellent, thank you!
modex20 : Getting that solder to flow into those holes will forever be a struggle.
willeskridge : Go TIgers!
Greg Lewis : It appears that the coax prep tool you use is part of the Times Microwave $400 coax tool kit. This is outstanding if you are going to make several cables, or is a club purchase. However I will only make a few connector installs. What lower priced prep tool do you recommend? And where is it available? I really do not want to use a razor blade. Thanks for a very informative video.

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#LMR-400

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