S21RC Digital Interface Rev 2.0 (Ham Radio – Computer)
Too many of us just connect the audio from the computer to the radio without realizing why the audio has distortion or why the computer is acting. So if you…
S21RC SSPA Controller Hardware Rev 3.x
[PCB, Schematic, and microcontroller codes released under MIT license by S21RC. You are free to use the material for personal/commercial use as it is or modify if needed as per…
S21RC LDMOS SSPA Controller V2.0
Update:13 November 2023:Display firmware for Nextion 5 inch Intelligent (NX8048P050) uploaded.4 August 2023:Display firmware for Nextion 3.5 inch Basic (NX4832T035_011) uploaded [NOT RECOMENDED]30 April 2023: Display firmware for Nextion 3.5…
Dead ICOM IC-7000 radio, Click Click from the relay
This was posted on my old website back in 2009. One lovely sunny weekends morning I found my 6 months old ICOM IC-7000 is not turning on. Something is wrong,…