Modeling is only a numerical simulation of the real world... Adding series resistance in the form of more turns of wire in a given linear space is vastly unlikely to increase efficiency in the real
Kelly, let me make a suggestion here... For feeding this shortened vertical (OCF) at the junction of the hat and the vertical wire I would suggest a link coupled arrangement... Even though the feed p
Dave, The mobile guys have that worked out and tested... Put the coil at roughly 60-65% up the vertical and add a top hat... The winners at the mobile shootouts use that layout... denny / k8do _____
An interesting thread... First, on the reflector - Make it resonant just below the band edge... I consider this the best point for the trade off between forward gain and FB ratio... e.g. for operati
This is exactly how I operate the Orion II on 160 through 40 meters... I have read that it can't be done because the fairy dust isn't the same in the two receivers, etc... But, it works just like gan
Well, that's their story and they are sticking to it... If I were the insurance company adjuster I would take a long, hard look at the guys and anchors... Lack of maintenance for 26 years is the mor
As long as the coax is not waterlogged and the braid is not corroded there will be little to no change in loss factor for old coax - especially the solid polyethylene center insulator... It may shri
Being a cheap bugger, I have always just used storm window Plexiglas and cut out rectangular strips 4" long, drilled and assembled them onto the wires as spreader bars... denny / k8do _______________
Buy the EZNEC 5 program from W7EL and save yourself far more money in wasted materials and futile effort than what the program costs... You can model your suggested antennas and look at the main lobe
Well, Chip created controversy on here (and elsewhere)... He seems to have made a market for his cell phone and other UHF antenna products - and more power to him... This is 'supposed' to be a capita
Paul, let me be the christmas grinch here and allow as how I feel your bandwidth is a bit too much for the antenna you describe - not too little as you seem to think... You seem to have a reasonable
Jim, I would opt for the clamp on RF transformer... Now, having said that, I recognize that anything we do to measure the RF current is going to upset balance, impedance, etc. to a greater or lesser
All CW contests are changed forever by Skimmers... The only workable rule is to have two categories (like we do with power) ** insert into the contest rules ** Decoding of Morse Code Elements transmi