Are there any guidelines for sizing masts and wall-thickness based upon how long and how much weight will be put on them? I've got a Mosley CL-33M (42 lbs. 6.0 sq. ft.), and a Cushcraft A50-5S (11 lb
Wow! Thanks to everyone who replied with answers. Looks like I've got some studying and planning to do! -- --JohnK 73 de W5NNH 10X 75371/M&M 117/SMIRK 6185/TRA 2499/Norcross 228 F&AM -- avast! Antivi
They're a bit proud of those towers, aren't they? $10,000 for the 70ft. tower? Not on MY budget! -- --JohnK 73 de W5NNH 10X 75371/M&M 117/SMIRK 6185/TRA 2499/Norcross 228 F&AM -- avast! Antivirus: Ou
You funding this, Jim? I'll be GLAD to spend YOUR money for the project! HIHI! -- --JohnK 73 de W5NNH 10X 75371/M&M 117/SMIRK 6185/TRA 2499/Norcross 228 F&AM -- avast! Antivirus: Outbound message cle
Mag wheel cleaner works pretty well. However, you need to be careful with it, as some brands contain diluted hydroflouric acid. I've used it for cleaning oxidized aluminum, but was careful to use nit
Looking through my junk box, I found an HP8761A SPDT RF Switch with N Female connectors on all three ports. Has anybody used one of these for antenna switching on a common feedline? I'm not planning
Yeah, that's why I'm asking others about it. It's only rated for 10W, but has a 5kW peak? That's an interesting spread. I wonder why the large range between nominal rating and peak rating? -- --JohnK
Okay, then it looks like I'll be going with the Tohtsu CZX-3500. I can mount that in a case reasonably easy and feed it with 12 vdc through the rotator cable. JohnK 73 de W5NNH 10X 75371/M&M 117/SMIR
Problem with the ICE products is that they are being very slow in delivery, according to Array Solutions. He has a 6 month backlog of orders waiting to be filled. I'd be thrilled to get the 2:1 switc
Was trying to avoid the "DC Bias Tee" style, as my lightning protection is DC-blocked (I purchased all my ICE products a few years ago, before the shipping problem). The MFJ two-position switch uses
Check out Bass Pro Shops or Cabela's for the steps. Deer hunters use them for hang-on stands all the time. I don't think they're galvanized, but powder-coated, instead. You can also get "climbing sti
So, for those of us who are in the process of tower-planning, what should we order from the local "metals supermarket" type of supplier to use for a 20 ft. mast to hold an HF tribander and a 6m beam?
Don't have data, but I have a LOT of 7/16" DIN male connectors for that hardline, as well as N Male connectors for the same. Brand-new, in the box. They're looking for a new home. Took them to the At
Had the exact same problem with my 25G and the rotor plate. Had to cut some of the cross-pieces up near the top to get it to fit in. -- --JohnK 73 de W5NNH 10X 75371/M&M 117/SMIRK 6185/Six Club 285/T
Not only is Commscope *not* a new player in the coax game, they *own* Andrew, now. They have merged their aluminum-based, smooth conductor hardline with the Andrew line, while they concentrate on mai
I'm going to do what others are probably going to suggest: Contact a Professional Engineer and have him take a look at the property. Sure, it will cost you money, but he'll be able to advise you how
The ICE might be a better solution, in any case. However, to each their own. I'd advise against the aluminum and seriously check out www.georgiacopper.com for their copper plates. VERY reasonable pri
Mostly because of copper's improved conductivity over aluminum, as well as its electrical behavior when corroded, as opposed to aluminum's. However, I'm sure there are plenty of folks using aluminum
Aluminum has 60% of the conductivity of copper. That's not "almost the same." In order to get the equivalent conductivity out of aluminum, you have to make it thicker, which isn't always the best cho