Towertalk
[Top] [All Lists]

[TowerTalk] forget the tuner, put the AMP at the feedpoint

To: towertalk <towertalk@contesting.com>
Subject: [TowerTalk] forget the tuner, put the AMP at the feedpoint
From: Jim Lux <jimlux@earthlink.net>
Date: Wed, 07 May 2014 05:43:08 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
One could solve all these transmission line and matching network things if you put the PA at the feedpoint. Whether narrow band or broadband amp, as long as the amp can take the voltage and current resulting from whatever the load impedance is, you're good to go. And then you can use something like RG174, 3" heliax, waveguide, twisted pair, or whatever you like for the RF coming from the shack.

As several have commented in this thread, there's nothing special about having an exactly resonant antenna as far as radiation goes. The pattern of an infinitesimally small dipole isn't all that much different from a half wavelength resonant dipole. It's when you get up to close to twice that length that you start seeing big lumps and dips in the pattern.

_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>
  • [TowerTalk] forget the tuner, put the AMP at the feedpoint, Jim Lux <=