[Boatanchors] CATV CABLE

[Jim Wilhite]

I can't find the voltage specifications for this stuff right now, 
but as I recall it is lower than RG 59.  So the 100 watt suggestion 
is good, particularly if you operate off the frequency your antenna 
is designed to match 75 ohms.  As you deviate from this center 
frequency, the voltage goes up and that can spell disaster for you.

Jim/W5JO


----- Original Message ----- 



> Since the feedpoint impedance of a typical half-wave dipole is 
> about 72
> ohms I'd say it is a rather good choice.  RG-6 is plentiful, 
> fairly
> inexpensive, lightweight and quite capable of handling 100 watts.
>
> Best Regards,
> Stevan A. White, W5SAW
>
>
>
> Magoo wrote:
>> I use hardline for all my Beverage RX antennas and am about to 
>> use it for a
>> run to a new phased TX array.  A 218.3 ft length of 70 ohm foam 
>> hardline
>> should enable one to attach a 50 ohm antenna and feed 50 ohms at 
>> the other
>> end to the station at 1.8 mhz.  For those who want only 80 to 10 
>> meters I
>> believe the length is about 113 ft.  These lengths apply only if 
>> the
>> velocity factor of your cable is .81.  There are lots of good 
>> ideas for
>> making connectors from articles in all the major ham magazines 
>> going back to
>> the early 80s.
>>
>> Bill, VE3NH