roof towers

Weatherproof UHF and microwave cavity antennas - General circular-waveguide-horn antenna design

Towers and Wind Load - Calculating Antenna Wind Load

Selecting a Tower - Selecting a Tower Supplier, site selection, design options and environmental Factors

Tower Assembly - Jumanji field tower assembly

Communications Towers - Basic information about tower purchasing and installation will help you to communicate your requirements to a tower manufacturer, leading to better decisions and a smoother process from inception to installation.

Boat and Engine Hoist Ideas for Raising Crank-Up Towers - Alternate means of raising your tower with readily available boat and engine hoists. Examples of working tower hoists with links to manufacturers.

GuyMast - Software for analysis of guyed and self-supporting towers & poles

AA1K towers - Antenna setup at AA1K consisting of 6 Rohn towers

Radio Structures - Manufacturers and Installers of Masts, Towers, Antenna systems, Trailer Masts, Lattice Masts and Bracketry. Radio, CCTV and lighting masts, tower Refurbishments, safety surveys, mast tower inspections, safe to climb certification

AC0C Roofing Filters - Yaesu FT-2000 roofing filters

AC0C Roofing Filter - Yaesu FT-950 and FT-2000 Roofing Filter Optimization and Improvement

Wulffert Technology LLC - Tower Light Monitor, Controller Alarm Systems for buildings, towers, antennas and airports

Tralicci Angelucci - Ham radio antenna towers manufactuer based in Italy

Telegraph Key Collection of Tim Watson - Telegraph Key Collection, ham radio telegraphy, cw, radio telegraphy, ham radio key, morse code key collection, key collecting, El-Key, Nikey, Vibroplex Champion, Vibroplex Blue Racer 2000, Bug, J-38, J-47, Navy Flame Proof key, Bencher, CT 599 MB key, amateur radio, amateur radio history, cw history, morse code history

FT2000 Filter Installation - Step by Step - Installing the NS Roofing Filter into the FT-2000

Yaesu FT-920 filter installation - Inrad Roofing Filter installation instruction

FTdx5000 Filter Setup and MARS mod - Installation of the 300 Hz Roofing Filter in the Yaesu FTdx5000 and MARS modification

Homemade Antenna Rotator Controller - The Antenna Rotator Controller is unique in that it senses, displays, and controls to the earth’s true magnetic field. The compass sensor, mounted in a waterproof enclosure, is attached to the mast and sends its signal to a microcontroller. By kg4jjh