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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16 March 2012
MASAT-1 misiune de succes!
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MASAT-1, primul satelit lansat de Ungaria a facut, cum se spune, “istorie” cand a transmis primele imagini ale Pamantului, la data de 8 mart...
04 March 2012
International HF "Bucuresti" Contest 2012
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Period: March 19, 2012 , between 18.00-20.59 UTC ( 20.00 - 22.59 LT ) Bands / mode: 80 m CW - between 3510-3560 kHz ; SSB -...
28 January 2012
LED Voltmeter (for portable QRP ops)
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As the summer is already here (HI), I plan to spend some time on YOFF and SOTA-YO so I prepare my portable backpack. A portable and comp...
21 January 2012
Lustraphone mike, another piece of junk restored...
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A few months ago I visit a friend of mine. In his backyard I found a big stock of junk. Searhing for some interesting, I found a nice deskto...
19 January 2012
Ten things about ICOM IC-R20 (and more)
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ICOM just announced that IC-R20 is not longer in production. I still have mine. I have this pretty communication reveiver for more than ...
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