K3NG Rotator Controller Project Update Feb 11 2021

In this video, Adam goes over the latest Nextion NX8048K050 (Enhanced 5.0″) firmware V2021-02-11-01 update for K3NG Rotator Controller.

Solutions to fix the crappy Yaesu G-5500 +13V rail voltage drop on its External Control connector are also offered.


New: (Suggestion courtesy VK1JA)
Elevation Gauge hotspots.
El can be quickly sent to 0°, 30°, 60°, 90°, 120°, 150° & … Read more...

Nextion for K3NG Rotator Controller Videos

A series of videos demonstrating the VK4GHZ Nextion for K3NG Rotator Controller

Part 1 – Basic Az system

Part 1 looks at a basic azimuth-only system and introduces you to some of the functionality offered.


Part 2 – Elevation

Part 2 introduced elevation functionality and adds a decimal place to Az & El readings.


Part 3

Eltek Flatpack2 HE 48V/2000W Controller

An Eltek Flatpack2 HE 48V/2000W rectifier is being used as the power supply for a 23cm 600W LDMOS Power Amplifier project.

This touchscreen controller has been developed to control the Flatpack2 HE 48V/2000W, and display its data.


5/16″ SMA Spanner Mods

Doug, VK4OE, shows us some handy modifications to a 5/16″ combination spanner to make it more user friendly when dealing with SMA connectors in tight spaces.


Android Applications for Ham Radio

There are many ham radio orientated apps available from Google Play for your Android device, and I will be documenting a few of the apps I have found useful here.


This is an audio spectrum analyser, acoustically coupled via the handset’s microphone.


Here, I am adjusting the frequency of a local oscillator (LO) in a transverter for a … Read more...

S/E QLD 10 GHz Activity Day, Oct 2013

Brisbane 10 GHz Activity Day, October 27, 2013

Iain, VK5ZD, is operating portable from the Gold Coast, whilst other stations are operating S/E QLD.

A fun MAD (Microwave Activity Day) on 10 GHz!


Tech Talk: A Passion for Microwaves

Tech Talk at the Redcliffe & Districts Radio Club, September 16, 2013, “A passion for microwaves”, by Doug Friend, VK4OE.

Doug discusses some microwave history, and takes a look at how easy it is to get active on the microwave bands.


Video: Windfreak SynthNV

We take a look at sweeping an M2 23CM35 yagi for 1296 MHz using a Windfreak SynthNV USB powered and programmed RF Signal Generator / RF Power Detector from Windfreak Technologies LLC.


Video: Mellish Reef DXPedition 2002

Here is the official collection of VK9ML Mellish Reef DXpedition 2002 videos.

VK9ML Mellish Reef DXpedition – Part 1


VK9ML Mellish Reef DXpedition – Part 2


VK9ML Mellish Reef DXpedition – Part 3


VK9ML Mellish Reef DXpedition – Part 4


VK9ML Mellish Reef DXpedition – Part 5


VK9ML Mellish Reef …