VK Logger Ham Radio Forum Archive

... the amount of fade alters. That's exactly why no documentation was produced detailing resistor A = xx ohms and resistor B = xxx ohms. The optimal values for my LCD were determined by experimentation, and after learning about how LCDs work. It's certainly not fit this resistor and that resistor ...

Hi Leicester

I'm busy pursuing other interests at the moment, but that might make a good video topic in the near future.
Need to get the channel view hours up, so I can also bombard people with ads!

lPbwYAm5x2g https://youtu.be/lPbwYAm5x2g New: Screen Saver Dim To percentage value is user definable on Config page. Was previously hard-coded to 5%. Can now be set 0 - 50%. Fix: (5.0" only) Wrong default font for navigation buttons (Clock & Grid) being set for virgin EEPROM. Was font 4, s...

Never make assumptions!




https://www.youtube.com/watch?v=z3vY_WipSVY

Another year gone, and so far, so good!

New K3NG Rotator Controller update video. Adam walks you through a comparison of the new 5.0" Nextion touchscreen vs a familiar 3.5" touchscreen, and it's features. FE_84faDlKs https://www.youtube.com/watch?v=FE_84faDlKs Project information & Nextion download: https://vk4ghz.com/vk4ghz...

VK4GHZ Nextion for K3NG Rotator Controller now gets a version for the NX8048K050 5.0″ Enhanced touchscreen. The 5.0″ screen is nice! Below are some comparison shots along side a familiar 3.5″ Nextion. https://vk4ghz.com/wordpress/wp-content/uploads/DSC7898_800.jpg https://vk4ghz.com/wordpress/wp-con...

Hi all VK4GHZ Nextion for K3NG Rotator Controller firmware update v 2020-12-17-01 brings "User Defined Function" buttons for those wanting to experiment with triggering their own custom code. Sample UDF code snippets; https://vk4ghz.com/k3ng-rotator-controller-project-update/ Zipped Nextio...

FYI, if you're not subscribed to Keysight (previously Agilent, HP) mail outs.

View Techniques for Millimeter-Wave Component Characterization
https://www.keysight.com/au/en/events/e ... eries.html

Always good to move from breadboard to reality. K3NG Rotator Controller system. From this 20201213_163450.jpg To this 20201213_163554.jpg System with Nextion touchscreen display, PWM linear actuator driver, remote elevation sensor via i2c extender, and GPS for time sync 20201213_164643.jpg :D

A further batch of 10 kits has just been released.

https://vk4ghz.com/product/eltek-flatpack-2-controller/

It appears Mods.dk was hacked recently; I'm very sorry to inform you that a hacker for about 1 day ago have had success to upload a script to mods.dk, and run the script. Which information the hacker has stolen is not possible to see at the moment, but the most sensitive information that you have pl...

An introduction to the VK4GHZ Nextion HMI touchscreen interface for a K3NG Rotator Controller. Part 4 introduces satellite tracking, and the process to get the TLEs (keps) into the microcontroller EEPROM. oFZq4j7RhY8 https://youtu.be/oFZq4j7RhY8 Project information: https://vk4ghz.com/vk4ghz-k3ng-ro...

Hi Stuart

Have you come across this PDF?
http://www.tuberadio.com/robinson/Teler ... _part3.pdf

I'm regularly asked what interface options are out there for the Eltek Flatpack2 Rectifier. This article may assist those looking for a solution: Eltek Flatpack2 Interface Board Considerations https://vk4ghz.com/wordpress/wp-content/uploads/DSC7493_web.jpg https://vk4ghz.com/wordpress/wp-content/upl...

Another batch of 5 kits now available.

Last batch sold out within several days, so this obviously fills a need.

https://vk4ghz.com/product/eltek-flatpack-2-controller/

Part 3 - Moon Sun Tracking, Help Screens, El Calibration

Part 3 Introduces moon and sun tracking, and discovers context-sensitive help screens. Elevation calibration is also discussed.



https://youtu.be/tO8g4XPoOeM

Please keep us up to date with how your legal battle goes over copyright infringements with your ex-employer, who created the original that you have copied. :D https://www.radioanalog.com/wp-content/uploads/elementor/thumbs/9-owtp6skvyjlpyfo506c12dfy31z9f56kjuh5hwbzdm.jpg https://www.radioanalog.com...

Touchscreen interface - the easy and modern way of setting and monitoring your Eltek Flatpack2 Rectifier PSU. Five more Eltek Touchscreen controller kits have been added to the store. https://vk4ghz.com/wordpress/wp-content/uploads/DSC7369_900.jpg https://vk4ghz.com/wordpress/wp-content/uploads/DSC6...

NanoVNA comparison measuring a duplexer - NanoVNA-H4 and SAA-2N

With a limited dynamic range, this is a reminder of why the NanoVNA H4 is cheap!



https://www.youtube.com/watch?v=GipCVEsiqXc