YO3HJV
Hamradio, Electronics& Stuff
XIEGU G90 Collection
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Full schematics
Block Diagram and Schematic
G90 Faults and mitigation
Reflashing the Bootloader
Audio Amp Gain Mod
Power supply section
SMPS regulators instead of LDO
"COMM LOST" Error
MCU and DB9 reference
External Speaker Mod
Firmware Programming Cable Schematic
High Resolution Pics
Power Output vs Supply Voltage
Front Panel Backlight
ATU issues
ICOM RJ-45 Microphone with G90
Disassembly the Front Panel of G90
VFO encoder selection
On screen voltmeter
Repair Manual by XIEGU
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27 March 2024
VFO Encoder selection for Xiegu G90
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From time to time someone start searching for part number of the VFO encoder. Here is a selection of part numbers for encoders without deten...
23 March 2024
Simplyfying the code by using a tic-tac machine
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Playing with Arduino and it's C++ I often use timed tasks. Basically, in Arduino you can do things at specific interval either by adding...
06 March 2024
Frecventmetru 0-1GHz cu ESP32
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Uneori am avut nevoie de un frecventmetru cu precizie ridicata pentru verificarea unor montaje facute acasa. Cum spatiul pe masa de lucru es...
Programarea unui ESP32 fara Arduino IDE
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Placile Arduino deja fac parte din istorie iar hobbystii deja au la dispozitie platforme de experimentare tot mai puternice din punct de ved...
23 January 2024
MESHTASTIC TTGO T-Beam V.1.1 Power On issues
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A few weeks ago, I start to play with Meshtastic using two TTGO - TBeam V.1.1 LoRa boards based on ESP32 MCU. Because plans are to use the...
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