YouKits HB-1B MK3, Руководство пользователя

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External power supply
Any 9-14V DC voltage or battery can be connect to power
jack at top.It has a polarity protection circuit.
Antenna
Any tuned antenna can be connected directly to the
antenna(ANT) with a BNC connector, for non-resonant antenna
need to use an antenna tuner
Headphones
Stereo headset will be connected to the headphone
port(PHONE), impedance 8-32 ohm.
Key/Paddle
The HB-1B has an automatic function that determines what type
of key is being used and is initiated at Power On time. you will hear
(in CW) the sound of the letter “A” if the paddle is connected or the
letter “M” if the straight key is connected. (Must plug in straight key
before power on to active straight key)
The operation of HB-1B
When power on, you will be heard (in CW) the sound of the letter