It is clean in design and has passed intensive testing without a hitch
The player is powered with 9V DC.
Technical data: 1) Input: DC 9V 2) Tune output frequency: 600Hz~1200Hz 3) Output Power: 0.5W 4) CW audio interpretation speed: 10 ~ 40 (10% error rate) (100% correct, without error speed is 15 ~ 35) We have a potentiometer at the bottom of the board for error rate adjustment, so as to better interpret CW audio signal: When we use computer to run CW signal, and when the LED at the bottom left of the board flashes, we use a real-sized screw-drive to turn the potentiometer a little to check whether the content is interpreted same as being handled from computers. If not, change the direction of rotation and try again. Input keyer: 3.5mm jack Audio Input: 3.5mm jack (single channel you can use to connect)
Notes:When practicingCW(in other words,the keyeris inserted),we cannot listenaudio
(connecting is prohibitedthe audio inputat the same time).