Date   
Running U4B From USB Battery Pack By HF · #88934 ·
TCXO for U3S CPU clock By HF · #84996 ·
ANYBODY HAVE A SOURCE FOR SOLAR PANELS THAT ARE SUITABLE FOR A BALLOON? By HF · #84199 ·
U4B arrived, Most expensive transmitter per gram :) By HF · #84007 ·
New product: U4B balloon tracker By HF · #83734 ·
Question for fellow frequency pedantics U3S :) By HF · #81706 ·
Question for fellow frequency pedantics U3S :) By HF · #81648 ·
U3S As A Plain CW Beacon Transmitter By HF · #80754 ·
#u3s One U3S, two 20M signals? Suggestions appreciated By HF · #80753 ·
U3S As A Plain CW Beacon Transmitter By HF · #80747 ·
U3S As A Plain CW Beacon Transmitter By HF · #80713 ·
Ultimate 3S on 144 MHz By HF · #80676 ·
Remote switching for a beacon amplifier By HF · #79930 ·
#10W_PA 10W Linear PA efficiency at 40 MHz By HF · #79669 ·
#10W_PA 10W Linear PA efficiency at 40 MHz By HF · #79650 ·
#u3s key click reduction idea By HF · #78165 ·
#u3s key click reduction idea By HF · #78164 ·
TCXO Needed By HF · #77973 ·
#10W_PA 10W Linear PA efficiency at 40 MHz By HF · #77276 ·
#10W_PA 10W Linear PA efficiency at 40 MHz By HF · #77269 ·
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