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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09 April 2017
Dipol VHF (UHF) simplu
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M-a intrebat un amic ce antena de VHF sa isi faca. Imediat m-am gandit la un dipol deschis, ca varianta optima eficienta/pret. Ca materi...
3 comments:
06 April 2017
IF tap for external SDR on a Yaesu FT-840
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So, a fellow ham (YO6FPW) has send me his radio to repair and for a very interesting mod! He want to be able to use his RTL-SDR receiver wi...
13 comments:
20 March 2017
Kenwood AT-300 ATU to ICOM Radio - II
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In a previous post I wrote about a devil plan to connect a Kenwood AT-300 Automatic antenna tuner to an ICOM 7300 radio. Here is the conne...
5 comments:
09 March 2017
Kenwood AT-300 ATU to ICOM Radio - I
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Well, I have a Kenwood Automatic antenna tuner AT-300 and some ICOM Radios (IC-7300 and IC-703+) and I want to use them. I tried to find on...
1 comment:
01 March 2017
ICOM IC-7300 thermal dissipation of the FPGA chipset
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I was curious about the rubber sheet on the FPGA chipset. Some people say that is good for thermal dissipation. Therefore, I put an infrared...
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