K3NG Rotator Controller

Yaesu G-5500 Ground Rail Fault & Better Voltage Drop Fix

Adam’s Yaesu G-5500 stopped working 🙁

Meter lamps came on, but non responsive otherwise.

An open circuit diode was found, D3, so no 0V GND rail existed.
Easy to find using an ordinary DMM.

A better method of eliminating the voltage drop problem across R10 20 ohm 5W resistor (that feeds +12V to the External Control connector) was suggested by Mike, WB8CXO, and implemented. … Read more...

VK4GHZ Nextion for K3NG Rotator Controller

Update 03-May-2022:  V2022-05-03 fixes typo error on About page in 7.0″ version


Nextion for K3NG Rotator Controller features:

Available for:
• NX8048K070 7.0″ Enhanced HMI
• NX8048K050  5.0″ Enhanced HMI
• NX4832K035  3.5″ Enhanced HMI
• NX4024K032  3.2″ Enhanced HMI  (limited functionality)

• Numeric Azimuth and elevation display
• Gauges Azimuth and elevation display
• BIG gauges display
• CCW/CW/Up/Down rotator control
• Configurable preset positions with name tags
• Configurable colours/fonts
• Park button
• Go To grid square
• Co-ordinates converter – convert between lat/lon and grid square
• Contest page – 8 presets
• Configuration – Screen page
• Rotor Calibration page
• Numeric keypad for entering numbers
• ABC keyboard for entering text & numbers
• Diagnostics page
• Configurable User Defined Functions with names
• Moon & Sun tracking page
• Satellite tracking page
• Satellite selection list
• Satellite AOS page
• Satellite tracking world map
• Tracking Check Interval settings page

Click on images to view full-size


Which Nextion?

Nextion for K3NG Rotator Controller Update 2021-06-29

This update introduces a new page for a large Azimuth only gauge.

Two alternate Azimuth gauge backgrounds can accommodate both close-in terrestrial VHF/UHF work or world-wide HF operation.


Change log:


* This update will reset your existing Nextion settings stored in EEPROM
Make a note of any preset Az & name tags, UDF name tags, and config settings
before updating.

How to fix serial GPS ‘Crazy Mouse’ Syndrome

Adam walks you through how to fix ‘Crazy Mouse’ syndrome.

This is when your PC misinterprets serial NMEA GPS data as mouse data by the serial port enumerator, resulting in erratic mouse cursor activity.