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-1A
When power on, you will be heard (in CW) the sound of the letter
“
A”
if the paddle is connected or the letter “
M”
if the straight key is
connected. (If not connected any key, will heart he letter “
A”
).
V/M/SAV Button