Another simple and effective option is to put the tuner in the shack and feed the antenna with ladder line through a balun. Matt KM5VI --Original Message-- From: TowerTalk [mailto:towertalk-bounces@c
Ma From a loss standpoint tuner in shack + high Z ladder line isn't bad (although you DO need to check and make sure that you're not one of the weird corner cases). The philosophical objection I have
The philosophical objection I have is that you can't build an effective choke for the ladder line to prevent it from being a radiator. Nor prevent it from being a noise receptor. Ladder/open feeders
But ONLY if the SWR at the feedpoint is in the reasonable range (5:1 or better), and only if it is a serious choke (high choking Z). N6BV has shown (and I have verified his work) that in extreme case
Jim: Bottom line -- all band dipoles and OCF antennas are a very bad idea in today's world where RF trash is everywhere. I view them as an unnatural act. Yes, you can load a random dipole fed with hi
It's not the "ladder line" that determines the pattern, it's the length of the antenna as fractions of a wavelength. Open your copy of the ARRL Handbook to Chapter 21 (Antennas). In the 2010 edition
Hi Tom, Thanks for your comments & I agree with you that all antennas are certainly compromises of various parameters and no one antenna can do it all - certainly one of the mantras of our hobby. I r
This interesting subject has so far has been educational ! But the original subject , I thought, would be discussed about shack versus remote antenna tuners, which is a design project that I am inter
Here you go, Chuck: http://www.arraysolutions.com/Products/Remote_Tuners.htm http://hbag.ch/en/produkte/item/anpassnetzwerk BTW, the thing about the fan dipole that I am not sure anyone mentioned is
But the original subject , I thought, would be discussed about shack versus remote antenna tuners, which is a design project that I am interested in. My feeling is that most, if not all, antenna vari