[Antennas] J-Pole

Chris Boone CBoone at earthlink.net
Tue Sep 28 18:33:21 EDT 2004


One word:
No.
In more than one word:
You have under 100ft of coax....100ft of RG213 has 3db loss...so at 50ft
you have 1.5db..
1/4 of your signal is loss in the coax...5 watts into it means you have
about 4w or so at the antenna..
Only way to get better would be use LARGER coax (like Heliax, etc)...but
is it worth it? Not for 50ft..
Ladder line is not worth the effort above 10mtrs
Chris
WB5ITT
> -----Original Message-----
> From: antennas-bounces at mailman.qth.net 
> [mailto:antennas-bounces at mailman.qth.net] On Behalf Of Durwydd MacTara
> Sent: Tuesday, September 28, 2004 9:20 AM
> To: Antennas at mailman.qth.net
> Subject: [Antennas] J-Pole
>>> I have a homebrew 2M/70CM J-pole 50 ft. in the air for use 
> with a 5W HT. Am 
> currently using RG-213 for feedline. i am wondering if it is 
> worth the 
> effort to switch the feed to ladder line, and if so how to do it?
>> "Carpe` Diem!"
> Durwydd MacTara
>


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