Your email came through as one big block so I'm not going to bother quoting. 1. Don't use Commscope/Andrew AL connectors on RFS. 2. D01K "Premium" connectors have better PIM performance, but there's
The local water utility commissioned a study many years ago to determine what the best color paint is for their water tanks/towers to minimize visibility. They came up with a color named "Philadelph
Before LDF was HSJ foam-dielectric Heliax, which was helical (spiral) corrugation. But LDF and later are annular. Also, HJ series (air dielectric) is still helical corrugation. All of the modern, fo
Commscope's AVA series, which replaced most of the sizes available in the LDF series, does have much less copper in it, and yes, it is easier to dent. However, LDF4 (1/2") was not replaced by AVA -
the cell 4" or Along the save lines as what Steve said, you could even side-mount a short section of 25G near the top and then be able to use an off-the-shelf rotor plate, thrust bearing, etc.. We d
come Put a weatherhead on the top of the PVC riser. Don't seal it water-tight, you want to let it breathe. -- Jeff WN3A -- This email has been checked for viruses by Avast antivirus software. https:
TRU is a connector manufacturer. They are owned by Winchester which owns Kings and a few others. Sounds like a splice connector for "750" (0.750" OD) 75 ohm trunk cable. Nowadays, those splice conne
Byron - You didn't say what the callsign of the station is, but it appears to be KAVY(AM). They are licensed for 2500 watts day, 178 watts night, both non-directional. That's about 11.5 dB differenc
Without replacing the elements and passives, it will never work ideally on the ham bands. If you leave the element lengths as-is, and just deal with improving the feedpoint match, the antenna will w
For one of the smaller Rohn tower series that have a flat baseplate, the pier pin is really there only to keep the base from moving laterally during erection. Once there is vertical load on the base
No need to reinvent the wheel - Rohn makes a tapered section and base insulator for 45G. Of course, then you also need to use non-conductive guy wires or segment them with insulators. But I'm confus
It is unclear from your email if you are talking about daytime lighting/marking or nighttime lighting. Here in the US, high-intensity is a white strobe, used only during the day, and only on tall to
Gee, you have them there, too? :-) We had the opposite idiocy here. Cell company wanted to build a monopole along a major highway. Local zoning board insisted that it be painted light blue. Why ligh
Several older 7/8" Heliax-type cables had solid center conductors, with Cablewave probably being the most common back in the 70's. I still have connectors for it if that's what it turns out to be. R
Yeah, that sounds like old/original Cablewave FLC78-50, not the later variant that had the same part number but used a hollow center conductor. I don't think this list allows attachments - I'll send
After I responded I realized I might have an old Cablewave catalog with specs for that cable in it, and sure 'nuff, I found one. Here are specs: FLC78-50J Center OD: 0.357" Outer ID: 0.850" OuterOD:
Re: LDF4.5-50 No, it predated Commscope's acquisition of Andrew's Heliax product line. LDF4.5 comes in handy for microwave up to about 6 GHz including 4.9 GHz and "wifi" in the 5.2-5.9 GHz range. 7/8
During that era, PD sold the "CUFLEX" series. "CU" being copper to distinguish it from the aluminum-shield "FoamFlex" product line. 1/2" had helical corrugation, copper-clad aluminum center, etc. wi
I have a spare DXE thrust bearing, new in box, email if you're interested. I think it's the 2" version, will have to confirm. -- Jeff WN3A _______________________________________________ ___________