Hi Rick,
I want the low loss of LMR-600. (.3dB /100ft on 14Mhz)
There are several choices.
* Regular LMR-600 has a nice PE jacket but solid center conductor
(aluminum/copperclad) not that flexible.
* LMR-600 ultra flex which has a poor TPE jacket, but the center conducter is
stranded copper, nice and flexible.
I would like LMR-600 UF with a PE jacket but not available.
I am planning to run 7/8" hardline out to the top of the first section of my
HDX589MDPL (crank up tower) and then go with as low
loss as I can find "flexible" coax from there on up to the antenna. I thought
with LMR-600 I may not need a separate rotor loop either.
I will see if I can find loss info for RG-218 on 14Mhz I found one table but
it is for 50Mhz.
It would be a lot simpler if I didn't have a crank up tower hihi
Bob
K6UJ
> On Dec 23, 2019, at 5:21 PM, Richard (Rick) Karlquist <richard@karlquist.com>
> wrote:
>
>
>
> On 12/23/2019 2:47 PM, Robert Harmon wrote:
>> I would like to use LMR-600 UF on my crank up tower all the way up to the
>> antenna without a rotor loop. From what I understand
>> the UF (ultraflex) has a stranded center conductor and would have the
>> flexibility needed. The only problem is that it has a TPE jaket
>> which is only good for 7 years or so. The reguar LMR-600 has a solid
>> center condutor (aluminum/copper clad) not stranded, but
>> has the good TP jacket like Bury Flex has.
>> I can't have the UF with TP jacket. :-(
>> Any other options that you know of for a low loss feedline (like the
>> LMR-600) that is flexible and has a good jacket ?
>> Bob
>> K6UJ
>
> I don't completely understand your question, but what I
> use on my HDX-5106 is RG-218 to go to the top of the tower,
> and then a rotor loop consisting of a short section of Bury-Flex.
> The rotor loop is connected to the RG-218 with a rigid
> 90 degree adapter. It works for me.
>
> Rick N6RK
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