Yaesu G-400 Antenna Rotator Controller

Posted on Feb 6, 2014

A very simple controller circuit, with fairly smart performance! Can`t afford a fully automatic computer controlled rotator, but would like more capability from your basic rotator Would you like a simple to use `point and shoot` computer controlled antenna You`ve come to the right place! The ZL1BPU Rotator Controller has been designed as an add-on unit for the popular Kenpro

Yaesu G-400 Antenna Rotator Controller
Click here to download the full size of the above Circuit.

KR-400 and Yaesu G-400 rotators. The controller consists of a small circuit board which fits inside the rotator control box (see picture). With this unit the rotator gains automatic heading seeking, computer control, and even heading control by clicking on a map or selecting a country prefix! The ZL1BPU Rotator Controller should work with any rotator with AC motor drive and a 500 Ohm feedback pot, such as the CDR CD-44 and the HY-GAIN HAM IV. It will also operate with both North-centred and South-centred rotators, as only the PC software setting changes. Computer rotator controllers tend to be expensive - however you can build this one for under $50! The firmware supplied supports a rich specialized command set and also responds to SARTEC, ORION and YAESU commands, making it compatable with most popular multi-function logging and digital mode programs that feature rotor control. The controller could also form the basis of a self-contained replacement controller, for rotators with faulty or missing controllers. Just add the power supply circuitry shown in the G-400/KR-400 Rotator Schematic - all you really need is a 24V AC supply, a 6V DC supply, and a 70 - 100 uF AC motor capacitor. The small circuit board can be fitted inside the rotator control box, and operates from the controller`s power supply. No holes need be made in the box, and all modifications are internal and reversible if the need arises. There are only five...

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    4W FM Transmitter with 2N2219
    Travellers shaver adapter
    Active Antenna With Gain
    Infrared intrusion barrier
    Mic condenser amplifier circuit
    Protection For Telephone Line Circuit
    DDS SigGen PS
    arduino yogurt maker
    Variable inductor
    Power Control
    BA328 stereo preamplifier circuit