"Geoffrey S. Mendelson" wrote in
:
I recently was able to use a crimp on tool for F connectors for RG-6
quad shield coax. To make sure everyone understands, I am in Israel,
and RG-6 quad shield coax is cheap and easy to find.
Any other coax is almost impossible to find. Pl-259 connectors, called
"UHF" connectors here are rare items. I can get them locally, but I
have to special order them and they are expensive. Since I can not see
them before I order them, I am as likely to get nickle plated ones
with phenolic insulation as I am to get any other kind, and once
ordered are not returnable.
BNC to PL-259 adaptors, are easy to get, and can be ordered from a
reliable local souce for a relatively small price. The same with N to
PL-259.
Looking around at the crimp-on F connectors before I ordered them, I
found that you can get crimp on BNC connectors for RG-6 quad shield
coax.
Here's my questions, Note when I say crimp-on, I mean the ones that
crimp from the rear, like commerical F connectors, not the ones that
crimp around the plug. I have never been able to get any of them to
"fit right":
1. Can I connect a 75ohm BNC plug (which is a different size) to a
50oHm BNC socket?
There is such a thing as a 75 ohm BNC connector, but you are almost
certainly looking at 50 ohm connectors designed for use on 75 ohm cable.
My recollection is that the 75 ohm connectors are incompatible with the
50 ohm connectors, and in some combinations will spread the female inner
part.
2. Are there crimp on 50 ohm BNC plugs which will work with RG6 quad
shield?
I know there are variations, but most are similar in size.
Yes, see
http://www.vk1od.net/transmissionline/RG6/index.htm .
3. Are there crimp on N connectors that would fit the RG6 quad shield
coax?
I haven't seen any. I use BNC compression connectors on the RG6, then
BNC/N adapters to connect to the antenna N connector. Works fine, all
waterproof.
More likely due to the size a crimp on center element that screws
into the plug body?
4. Are there crimp on PL-259 connectors?
Yes. They have most of the disadvantages of the PL-259.
If you are of the view that everything that comes out of China, leave
now.
I buy N, BNC, UHF, etc connectors that are of Chinese original that are
economical and excellent quality. But... you have to be picky, price is
not a good indicator of quality.
There is also a prejudice against RG6. Again, quality varies, and you
need to inspect carefully and test product that you might use.
Owen
Thanks in advance,
Geoff.