Confused on which coax I need ?

[S109]

Hi,

Soon to do my foundation exam, got an X-50 to go up and will be using a Kenwood TM-V71E. I originally bought some RG-213 with the brackets & pole etc but after reading around it seems Westflex would be better. Also found Eco 10 and 15 seems to get recommended a lot so I'm now stuck on what I should go with. I want to get it right the first time ! I guess the run is going to be about 15m definitely less than 20m.

Any suggestions ?

Thanks.

[26CAB40]

RG213 will be adequate for 15m.
But any longer and seriously consider something a lot better.

[bigpimp347]

nothing wrong with RG-213
and unless your made of money and thinking losing a fraction of a db an issue then stick with what you have.

[g7kxm]

Personally i'd use the rg213 if you already have it... but then i'm tight. The others you mention would get a little more signal to your aerial but will it be worth the extra expense to you?

[normal]

Acording to this coax loss calculator 15meters of RG213 looses 2.4dB at 430MHz which is fine unless you are trying to bound signals off the moon or pick up a milliwatt transmitter on a microsatellite in which case you use a low noise mast head preamp and the coax loss dosn't matter.

Less than one nominal s-point. The s-meters on VHF-UHF vary considerably in how many dB moves the meter one s-point and where s9 is, some Kenwood's going from s1 to s9 over about -117 to -105dBm so on a quiet channel s1 is a fully readable FM signal and s9 is a slightly stronger signal.

That corresponds to 29watts of your radio's 50watt output making it to the antenna.

Unbranded or Maplin RG-213 might have 1dB or 2dB more loss.

[Kaos]

MMM

Not all co-ax's are shown there.

Stick with RG213, nowt wrong with that.