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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31 December 2020
Trick to protect the RJ45 connector tab
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Many transceivers have RJ45 connectors on the microphones and many of them broke at transport or even in the storage box when searching for...
20 December 2020
HiRes pictures from the XIEGU G90 transceiver
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Here are some pictures of the PCBs in the Xiegu G90 transceiver. The Main unit. Control board. RF Front End Bandpass Filters As...
19 December 2020
Xiegu G90 External Speaker modification
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I like to hack the radios to add new features or to enhance the features already existing. After playing a while with the G90 I found necess...
1 comment:
Xiegu G90 - reflashing Bootloader into Front panel microcontroller
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After inspecting the Main unit of a brand new Xiegu G90 transceiver for some mods with the Front panel removed, the radio got into a fatal ...
20 comments:
13 December 2020
RTL-SDR gain steps
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It was hard to find the gain steps for a NOOELEC SDR therefore i will put them here: RTL2832U NOOELEC ...
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