[TenTec] SLIGHTLY OT

[Steve Hunt]

Mike,

You're putting words in my mouth - I've not said anything about whether 
an antenna is "half decent" or not.

What I can tell you for sure is that a 132ft dipole at 50ft above 
average ground will have a feedpoint impedance of around 10-j1059 Ohms 
at 1.9MHz; and that load will result in 6.5dB loss in 100ft of Wireman 
551 if it's dry, and 9dB if it's wet. I leave you to judge whether or 
not that constitutes a "half decent" antenna for that band.

Why are the losses so high? Because that feedpoint impedance produces a 
VSWR of 320:1 on the 400 Ohm 551 ladderline.

73,
Steve G3TXQ



On 08/04/2011 21:56, Mike Bryce wrote:
> Okay...
>
> So what I just read from the link you sent, if I take and put up a center fed Zepp with 66 feet on each side, fed with 450 open line and assume no loss from the tuner or balun that antenna won't make a even halfway decent multiband antenna?
>
>
> Mike
>