Almost zero - don't worry about it. In more detail: if the element ran through the centre of the boom, electrically connected on both sides, the correction would be about 0.15x the boom cross-section
The boom to mast clamp won't affect the resonance of any parasitic element... unless you're implying that one of the elements would have to pass right through your extended mounting plate? -- 73 from
Someone else is sure to comment on the choke baluns... Betcha they did: hot melt glue. Ordinary translucent glue sticks (not the yellow or white kind) are basically polypropylene, which is an excell
Another question to ask is: "Has anyone greased that winch?" Those fiber pads sure do look dry... -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek _______________________________________________
Yes, that's why you see them everywhere in professional installations. I've tried everything else in this wet climate, and cable glands are the solution that works every time. The cheap plastic ones
I've never felt comfortable about using oil- or grease-based materials on threads that are supposed to stay tight afterwards. A lesser-known feature of Loctite and similar thread locking fluids is th
The grades of Loctite are roughly color-coded into: Low strength (purple aka pink): Easy disassembly using hand tools [Used by clock and instrument makers for tiny screws.] Medium strength (blue): Di
Lead-free solder is only of benefit after the equipment has been dumped. Tin/lead solder helps keep equipment from *being* dumped. -- 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http
Download Loctite's 'product Capability Guide': <http://www.henkelna.com/us/content_data/138230_LT4985TLCapabilityGd.pdf> The selection chart will lead you to Loctite 243 for almost all antenna applic
The original MIL pattern N has two serious design problems when connectors are assembled "in the field" without jigs and tooling. One is the very weak cable retention, because the cable is anchored
Exactly which part(s) failed; but also, which other parts survived? It would be good to know the strengths as well as the weaknesses. That's good to know, as I recently installed a 2051. -- 73 from I
Thanks, Peter. 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek -- _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@co
There are many different kinds of Loctite. Probably the best for general antenna work is blue Loctite 242 or 243. http://www.loctiteproducts.com/products/detail.asp%3fcatid=10&subid=48&pl id=153 Yes
It was probably 242, as it has been sold in a retail blister pack for many years in the USA. For amateur purposes, 242 and 243 are practically the same and both have a proven long-term track record.
Answers are here: http://tinyurl.com/7-16din In Europe, 7/16 connectors are already coming out of the older generation of cellular sites. They can be found at flea markets for very good prices, becau
What language is that? It ain't American, fer sure... -- 73 from Ian GM3SEK _______________________________________________ _______________________________________________ TowerTalk mailing list Towe
I've had very good experience with larger rope grips using the same 3-ball system, which gives a very firm hold on a 3-twist rope. They really are superb... but they are also 50% bigger than the ones
Can you be more specific? There are many different kinds of Loctite [1], many different kinds of galvanized hardware... and many, many different kinds of screw-up :-) [1] Loctite Selection Guide: <ht
I agree with Steve; you *can* take a couple of clip leads... but then you have to pre-calibrate the whole setup quite carefully against three impedance standards. Analyzers that have no facilities to
On which equipment/software/DUT does one see SWR <1? -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek _______________________________________________ _____________________________________________