David Ashworth wrote:
> Hi to all, thank you for the answers to my previous questions about
> stacking and rotors. I learned a lot. Now, a couple of questions and
> wonder what you are using that works. Here is the statement and the
> questions: Have some 9913 that feeds a multi-band vertical for 5 years or
> more. Heard that it may suck up water, no troubles yet. Now, we write a
> clean slate. Say I would like to put up beams on a new mast for 50 and 144.
> What coax would the group recommend? I am curious, I have heard about this
> LMR-400, etc, but have not seen any of it. If it is like 9913, it would
> not like to turn around and around. What connector from the high dollar
> run (LMR) to the pigtail coax that likes motion would you advise? What type
> of coax would you use for the pig tail? Just full of questions. The run
> would be 100'. Thank you much for your assistance, Dave, NC6P.
>
> _______________________________________________
> VHFcontesting mailing list
> VHFcontesting@contesting.com
> http://lists.contesting.com/mailman/listinfo/vhfcontesting
>
Times Microwave (manufacturers of LMR-400) makes an Ultraflex version of
LMR-400 that works well with rotators, etc. Personally, I'd use that as
a pigtail and look for surplus LDF5-50 Heliax to run down the tower and
back to the shack.
I found some great deals on 7/8" DIN connectors that I'm using as
splices to splice the lengths of Heliax together. Makes for a strong,
low loss, easy-to-weatherproof splice. On the ends, I have N
connectors, as they were the easiest to find.
I save the Heliax for 70cm and above. For 2m and below, I just use
LMR-400 all the way back to the shack, as the loss is negligible at
those frequencies.
--JohnK
73 de W5NNH
_______________________________________________
VHFcontesting mailing list
VHFcontesting@contesting.com
http://lists.contesting.com/mailman/listinfo/vhfcontesting
|