My prior QTH (still own it) has a 802.11 repeater hub for my (and many others) internet service, about 9 link antennas on 20' of Rohn 25. It was 100' from my tribander at the same elevation and I don
I haven't had a pulley off my HDX589 but would assume the sheaves are similar since 4 of the 5 tower sections are identical to the 689. Can you post some pictures and describe what is wrong with the
There are many KP8 and KP10 bearings on ebay, but I do note they are surprisingly expensive if you want a premium brand. Chinese versions are much cheaper. However, the pictures show different size K
Another take away from K7NV's analysis is how there is significantly less stress in a pier pin base tower to tilt than the usual tower section in concrete. Perhaps it is more important to follow the
Many of the home backup gens here are 3600 rpm, not a bad compromise IMO considering the very low duty cycle. However, when I bought my Kohler the advice was to not go 3600 as the very low loading on
I'll second the view that the HDX-589 is a good choice. With K7LXC's help I put up two of them 2 years ago and no issues so far. My lot is 5 acres also and partially wooded, with the two towers in a
I've had great success with Metacrylics as a deck/roofing material over living space. see metacrylics.com A sun protection/walk on layer is recommended over the sealing layer. Grant KZ1W Hello Gents,
Another way to think about this is that rebar is spaced more closely than most any HF radial wires. Which raises questions for my site: what to do when a buried radial field encounters a concrete pad
My GAP Titan (I think their first model) didn't hear or talk well. It's hung in the barn, covered with bird crap. It does make a good bird perch. $150 OBO, located in the close in east foothills of S
piling on, the leads/antenna could be small gauge with power sent via high voltages/low current, since the motors could be PWM driven with the onboard processor or a simple buck convertor.. Taking ou
Sleeving works, UST sells 20' x 2" x 1/8 wall steel masts with the lower 10' sleeved to 1/4". With a 2.5" od (what is "thick wall" and what is the alloy and temper?) you potentially have a very stron
I managed to find the answer to a question that has bothered me re reinforcing with internal sleeves - do the ends of an internal sleeve need to be pinned to the outside sleeve to act as a single str
I went through the same ruminations with the 89' crank up I installed and decided the 4 el SteppIR w/o trombones was the way to go. It has a 32' boom which is bit longer than most of the multi-band c
We once "repaired" an 80' free standing tower with a bottom section bent near the concrete during the erection by pouring a concrete collar base around that section. The collar was about 4' tall, a l
IIRC NEC requires a welded/brazed/Cadweld connection of ground wire to ground rods if the connection is buried. However my inspector ignored an obviously below grade screw clamp to one ground rod tha
Brazing works to steel as well as Cu, with the use of flux on the steel. On Cu, Ag/ P (Harris Stay-Silv 15) containing brazing alloys are self fluxing and are pretty much the standard for HVAC and re
Most antenna aluminum is 6061 or 6063, an alloy that is not the best choice for corrosion resistance. It is chosen for yield strength. From my sailing experience - Powder coatings on a mast work on A
A "putty" product I found and like is from construction: Tacky Tape from Schnee-Morehead. It is a butyl self amalgamating tape which conforms like Coax-Seal but is easy to remove. I found it on Amazo
Simpson Strong Tie makes epoxy for concrete anchors in "caulking" gun sizes with mixing tube nozzles. Sold at Home Depot, usually where the Simpson anchors are stocked. Getting the hole extra clean o
You might consider replacing the rivets on general principles. My EF-180C, which had been around for a while before I bought it, had about 30% of the rivets loose, a few missing, and the remainder ok