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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14 April 2018
Homebrew HDD CW paddle
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I was playing with some scrap to make an usable CW paddle key... This one is made from some parts scavanged from an old HDD laying around....
1 comment:
08 April 2018
Some Vertical Antenna Experiments
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On my second QTH I have a vertical antenna (Hustler 4BTV) placed directly on the ground. It works amazing but has only 7, 14, 21 and 28 MHz...
05 April 2018
NODEMCU v1.0 ESP-12 default pins
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I2C I2C can be used to connect up to 127 nodes via a bus that only requires two data wires, known as SDA and SCL . SDA=4 => D2. ...
26 March 2018
Flashing ESP8266 firmware problem-solved!
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I was playing with a Adafruit Huzzah ESP8266 breakout board and somehow I screw it, leaving it into an undefined "load programm" ...
16 February 2018
APRS via LoRa - Links
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Cateva instrumente utile pentru LoRa. -O librarie simplificata pentru Semtech SX127x: https://goo.gl/IeEiC1 Spre deosebire de librariile R...
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