[50mhz] Coax choice for 6 mtrs?

Lance Collister w7gj at accessoutwest.com
Mon Apr 24 21:22:57 EDT 2006


73.de.EM12 wrote:
> I have a 50-ft. coax run from transmitter to antenna.  Coax choices
> available to me are RG-8X or RG-213/U, both of equal manufacturing quality.
>
> The cost of the RG-213/U is roughly double that of the RG-8X.
>
> My question:
> Does the performance of RG-213/U -- At 50MHz -- justify its double cost?
>
> 73,
> KC5AN
> John in TX
>
> Moderator: Ray Brown, KB0STN
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>   
For your particular installation I would suggest investing in some 
decent coax.  If I were you, I would use Times Microwave LMR 600 Ultra 
Flex right from the shack, around the rotator and to the antennas.  It 
will hold up to the elements, is very low loss (less than HALF of 
RG-213), and if you ever decide to run any power or do any weak signal 
work on 6m, it will work FB for that too :-)

Below is the output from the calculator at 
http://www.timesmicrowave.com/cgi-bin/calculate.pl

Coaxial Cable
Attenuation & Power Handling Calculator

Product
   LMR-600 UltraFlex
Frequency
(MHz)
    50 MHz
Attenuation
(db/100 feet)
    .662 dB
   
Average Power
(kW)
     3.51
   

You can buy the cable and the special connectors for it from Texas 
Towers.  GL and VY 73, Lance

-- 
Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8)
P.O. Box 73
Frenchtown, MT  59834  USA
QTH: DN27UB
TEL: (406) 626-5728   
URL: http://www.bigskyspaces.com/w7gj
2m DXCC #11, 6m DXCC #815




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