Electronics | Amateur radio | Nerdy Stuff
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.… Read more...
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.… Read more...
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.
… Read more...
A reliable 5V power supply is required to power a controller for an Eltek Flatpack2 48/2000 HE rectifier being used as the PSU for a future 23cm 600W LDMOS Power Amplifier project.… Read more...
I have a fix for the Thunderbolt GPSDO date error!
The VK4GHZ Thunderbolt Display no longer uses the Year, Month and Day data fields sent from the Thunderbolt.
These date fields are no longer translated correctly inside the Thunderbolt since it rolled over from July 29 to 00:00:00 July 30, 2017.… Read more...
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.
… Read more...
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.
Frequensee
https://play.google.com/store/apps/details?id=com.DanielBach.FrequenSee&hl=en
This is an audio spectrum analyser, acoustically coupled via the handset’s microphone.… Read more...
The idea of 2.4 GHz “shoot out” was raised with the VK4 microwavers present at the last 5.7 GHz shoot out.
Both myself and VK4EA did a site recce at the Murrenbong Scout Camp last weekend, and are happy to report there is no wifi crud to be heard, nor are the power lines any problems.… Read more...
Finally!
Presenting the VK4 Microwave Activity Day video for July 2013.
Thank you to all those who shot some video – without the efforts of these people – there would be absolutely NOTHING to watch!
A special acknowledgement to Peter, VK4EA, for giving us a great look at his station.… Read more...
Depending on the size and wind load of your antenna system, you may be able to get away with using tripods and mounting schemes intended for consumer grade video and still photography. 
At right, you’ll see an example of 2.4 GHz gridpack (1000 x 600mm) mounted on top of a Manfrotto Quick release plate, on a heavy duty Benro ball head and Benro camera tripod.… Read more...
The DL2AM 10 GHz 10 Watt Power Amplifier arrived recently, and was “unboxed” today.
(Click on the pictures, to see them full-size)
Manufactured by Philipp Prinz, DL2AM, this requires;
My Kuhne 10 GHz G3 transverter provides a nominal 250mW output (+24dBm), so a 3dB in-line SMA attentuator will be required between the Kuhne and this power amplifier.… Read more...
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!
… Read more...
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.… Read more...
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.
… Read more...
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
Eltek FLATPACK2 Volts Setter
$60.00 AUD
Eltek FLATPACK2 24/48V Touchscreen Controller Kit
$145.00 AUD
Genuine OEM Belt Clip for Anytone AT-D878UV & AT-D868UV - 3 Pack
$21.00 AUD
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