If you want to get into it a bit, replace hardware with stainless. Use something like Penetrox on all electrical contact points including straps and coils in traps. Make sure any drain holes (e.g. on
I'm not sure of the exact relationship, someone in the group probably is, but I think the impedance of the wire/cable used for the windings on the torriod is of some significance. Possibly something
Hi Craig - Assume this hurricane is a massive low pressure system. Circulation in low pressure systems are usually counterclockwise, and stronger as the pressure gradient increases towards the center
When we had a big ice storm I lost my tower and antenna. NUMBER ONE BIG HELP WAS MY LOCAL INDEPENDENT INSURANCE AGENT. He helped me through the whole process and we obtained full compensation. I did
Dave - You need to find an independent agent who would like your business and would be on your side. Gene / W2LU _______________________________________________ ______________________________________
Hi Bill - PPM's come in small,medium and large. Even the "small" would probably do the job. Kurt / K7NV could give good advice. One of them and a Blue Heron controller would really give you a first c
Hi Jim - In defense of the PPM's - Have you ever opened one up and seen how they're built ? I would guess that any motor shop could rewind the "coils". The bearings and brushes are obtainable. The ge
There is no "simple " answer. IT ALL DEPENDS - on bending moments, restraining moments, strength of materials, loading, etc. If the larger dia tube is getting near it's limit you might want to extend
Hi Ed - If we're collecting antidotal evidence - I use 160m quarterwave slopers (140 feet) fed at the top of a 100 foot tower and also, for general purposes, have six 100 foot raised radials around t
100 feet, if possible, is nice. Great for 40, for 80m halfwave slopers and 160m quarterwave slopers. Pretty good most of the time on 20, especially for longer paths. Perhaps a little high at times on
I tried Alumoweld once and it dissolved within 5-10 years. Gene / W2LU _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk
Hi Tom - I really don't think you should try that unless you are prepared to go through a complete retunning exercise. As Jim pointed out the wire and the tubing are different diameters and that will
Hi Hans - I've enjoyed seeing the results of your calculations. As a matter of curiosity, have you been taking into account column loading, or is that generally out of the picture? Certainly with an
Why not just a plain old plumber's snake ? It should be good for at least 20 foot sections and, it might even still be good for it's intended use after the cable job was done. Gene / W2LU ___________
Hi Dave - If you have not yet, you should check out ON4UN's Low Band DX Handbook. John covers a number of lowband "three squares". About 40 years ago I started out with three each halfwave slopers -
Hi Steve - Making the gross assumption that you have access to the bevel gear and the mast that will allow you to create a "joint", I would recommend looking carefully at the Kurt/K7NV recommendation
YES, particularly for 40 and 80 (and of course 160), if can't get down a good radial system and you're thinking horizontal polarization, first put your time and money into getting height, then antenn
If you anticipate needing to raise/lower big antennas a number of times over the years you might consider making a carriage/track system. Many years ago I put one together on my 100 foot tower that a
Hi Mark - A GOOD vertical antenna is perhaps the easiest way to get the low radiation angle you would like for DX'ing. Some of the things you need to keep in mid to get a "good" base fed system inclu
Correction : For the centerfed vertical, it should not be more than 1.25 wavelength at the highest frequency. i.e. like a vertical extended double zepp. - 5/8's wave each side of center. Gene _______