[TowerTalk] Fw: Hardline ?

[Paul Playford]

Yup.  But figuring out the 1/4 wave, or odd multiple, frequency, is the
 trick. Oh, by the way, we have a short piece of 50 ohm coax on both ends of 
the 75 ohm hard line, plus a balun at the antenna end and we are using a 
tri-band antenna.

 Been there, done that.

 And it is not a wash - it's a real mess.

 Much easier to just stick with constant impedance transmission line.

 de Paul, W8AEF

 ZF2JI/ZF2TA  FO8DX/FO8PLA  8Q7AA  XZ0A  VU7RG  TX5C



> ----- Original Message ----- 
> From: "Perry - K4PWO" <k4pwo at comcast.net>
> To: "Paul Playford" <paul at w8aef.com>; <towertalk at contesting.com>
> Sent: Monday, April 20, 2009 1:45 PM
> Subject: Re: [TowerTalk] Hardline ?
>
>
>> Only if its a 1/4 wave, or odd multiple, long...  Otherwise, it'll just 
>> give
>> you a 1.5:1 VSWR "IF" your antenna is a true 50 ohm match.  Since it has
>> lower loss than 50 ohm coax, its usually a wash on station impact.
>>
>> 73 de Perry - K4PWO
>>