VK4GHZ.com

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

August 4, 2021 by Adam

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 … Read more...

Amateur Radio K3NG Rotator Controller Nextion HMI

VK4GHZ Nextion for K3NG Rotator Controller

July 3, 2021 by Adam

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 … Read more...

Amateur Radio K3NG Rotator Controller

Nextion for K3NG Rotator Controller Update 2021-06-29

June 29, 2021 by Adam

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 … Read more...

Amateur Radio K3NG Rotator Controller

How to fix serial GPS ‘Crazy Mouse’ Syndrome

June 23, 2021 by Adam

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 … Read more...

Amateur Radio Miscellaneous Miscellaneous

Behringer X1222USB Power Supply Failure – Fix

June 10, 2021 by Adam

Behringer X1222USB audio mixer Power Supply fails, again!

The SMPS modules fitted to these Behringer audio mixers are crap!

Fault symptoms include the appearance of no power to the mixer, … Read more...

Amateur Radio Eltek Rectifier

Eltek FP2 Controllers in stock

May 28, 2021 by Adam

A new batch of Eltek Flatpack2 controllers are in stock.

This controller will work with 24 V and 48 V Flatpack2 rectifiers.

New to this batch, and of interest to … Read more...

Amateur Radio K3NG Rotator Controller Nextion HMI

Custom Big Az gauge for 3.5″ K3NG Nextion

May 20, 2021 by Adam

In the next VK4GHZ Nextion for K3NG Rotator Controller NX4832K035 release (V2021-05-21) I’ll include the ability to toggle between the standard Big Az Gauge and your own custom gauge background.… Read more...

Amateur Radio K3NG Rotator Controller Nextion HMI

Custom Big Az gauge for 5.0″ K3NG Nextion

May 19, 2021 by Adam

In the next VK4GHZ Nextion for K3NG Rotator Controller NX8048K050 release (V2021-05-21) I’ll include the ability to toggle between the standard Big Az Gauge and your own custom gauge background.… Read more...

Amateur Radio K3NG Rotator Controller Nextion HMI

Nextion for K3NG Rotator Controller Update 2021-05-09

May 9, 2021 by Adam

Both 3.5″ and 5.0″ Nextion touchscreens for the K3NG Rotator Controller receive an update.

This release also introduces a new “no frills” version for the NX4024_K032 3.2″ Enhanced Nextion HMI.… Read more...

Amateur Radio Eltek Rectifier

Eltek Flatpack2 24/48V Touchscreen Controller User Guide

April 14, 2021 by Adam

An updated User Guide has been released to accommodate the new version of the popular Eltek Flatpack2 controller.

This new version now allows monitoring and control of either a 24 … Read more...

Amateur Radio K3NG Rotator Controller Nextion HMI

Nextion for K3NG Rotator Controller Update 2021-04-06-01

April 11, 2021 by Adam

Both 3.5″ and 5.0″ Nextion touchscreens for the K3NG Rotator Controller receive an update.

Change log as follows:

V2021-04-06-01

Change:
• Splash page - timer 'tmrReadySC' (that waits xxx mS

Amateur Radio K3NG Rotator Controller Nextion HMI

Nextion for K3NG Rotator Controller Update 2021-03-23-01

March 23, 2021 by Adam

Both 3.5″ and 5.0″ Nextion touchscreens for the K3NG Rotator Controller receive an update.

Change log as follows:

V2021-03-23-01

New:
• BigGauges page featuring larger Az/El gauges.
  Intended for manual

Amateur Radio K3NG Rotator Controller Satellites

Fixing Yaesu G 5550 13V External Control Rail Voltage Drop

March 18, 2021 by Adam

Adam looks at why the 13V rail appearing on the Yaesu G-5500’s External Control connector drops so much when a Rotator Controller board and 5.0″ Nextion are powered off this … Read more...