YO3HJV
Hamradio, Electronics& Stuff
XIEGU G90 Collection
(Move to ...)
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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24 March 2013
MotoTRBO DP4801 - Startup LOGO and Voice announcements
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I managed to change the startup logo. I replaced with a personalized one. Also started Voice announcements.
23 March 2013
Motorola TRBO DP 4801 is here!
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Finally, the new "toy" has arrived in my shack (pocket???) and is amazing! It;s little, it's powerfull, with a se...
22 March 2013
Kenwood HS-5 modification for Stereo
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Yeap, I have a Kenwood HS-5 radio headphones. Nice, comfortable and impressive headphones. But, there is a "but" here! They are ...
10 March 2013
MotoTRBO on Bucharest UHF Repeater B1
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Yeap! The first DMR repeater exclusive for Ham Radio use is in service in Bucharest! it works on the former B1UHF Analog frequency pair (43...
20 December 2012
Android Digimodes Interface Diagram
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OK, OK, don't start to teach me to use a CAD software because I 'm too old for that and I am not an engineer but attorney! I made ...
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