Does anyone have the model number and a source for a replacement raising/pull down motor for an HDX572 MDPL? The name plate on mine accidently got painted over. I'm sure I could get one through US To
Thank you to all that replied. I have a number of great ideas to follow-up on for which motors are readily available, including a picture coming of a rain hat to protect the motor. Mine still works,
I was asked to share what I had learned. Here is what I put together. The motors requirements are: Capacitor start, 1 HP, 1725 RPM,115/208-230 VAC, 13.4/6.8-6.7 amps AC, single phase, NEMA Frame 56H,
Hello fellow TowerTalker's, I am getting ready to make the 10 coax stubs for my Multi-Two (with proper social distancing, of course) station for the CQWW SSB Contest per the diagram used by K9YC, K1T
Here is the link to Jim Brown's great article on coax stubs. http://www.k9yc.com/Coax-Stubs.pdf The diagram I refer to is on page 12. What I am hoping for is advice on a strategy for where to target
I have heard we have several modelling experts out there. I have purchased both EZNEC+ and AutoEZ and adapted a 20-15-10m Triband design for separate feedlines. I am matching the impedance with shunt
Thank you to all that replied. They have all been most helpful. Dan McGuire, AC6LA also saw the post and made some very elegant upgrades to my model. I will post a summary of what I have learned once
Hello, I am assembling the 8 pins of the 9 pin cable connector for a "new to me" Hygain Tailtwister. I know I'll only get one shot at this unless I have a pin extraction tool. It is the Amp 09 StdSx
I really like the Top Ten Devices A/B Station Selectors (Part number TDS-AB-Selector) as 2x1 coax switches with high isolation between ports for setting up a Multi transmitter contest station. Unfort
I have a Hub City Gear Reducer on my US Towers HDX 572MDPL crank up, tilt over amateur radio tower that has a shaft seal leak. The part numbers on the name plate are: 0220-6272-321 321 60/1 C 0205 "1
Hello Towertalkers, I have built an EZNEC model of the Force 12 C31XR utilizing a single coax feedline for a friend that is rebuilding a used one. I have a pretty good model working with EZNEC Pro2+
Thanks Jim and others for your replies and ideas. Agreeing with Jim, the transmission line is made from 14/2 with ground Romex. The ground wire is pulled out leaving the dead space. I measured a rand
Anyone's guess on the transmission line impedance as described? I've found calculators for 2 conductors in free space, but I'm scratching my head on what the Romex covering will do for the dielectric
Speaking with Ken at JK Antennas this week, he told me he has talked with someone, possibly at contest station in the Caribbean, that was converting Force 12 C31XR's to be more like his JK C31XR with
Hello, I am refurbishing a US Tower MA 550. The instructions for installing cables references waxing the outside of Tubes #2 and #3 with bees wax. I have seen this in bars, but is there another form