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Pressing the RADIO1 (B14) and RADIO2 (B15) buttons at the same time enables automatic selection of
transmit focus (AUTO mode) and illuminates the AUTO light. The lights below the RADIO1 (B14) and
RADIO2 (B15) buttons indicate which radio has TX focus (will transmit in response to a PTT input). Transmit
switching is based on the configuration options and application control signals described later.
B16 – LEFT
Selects the audio source connected to the left channel of Sound Card 2 Line In (MK2R) or “Digital” Audio
Codec (MK2R+).
(4) – Recording/Digital left channel audio status
RADIO1:
A – indicates fixed level audio from MAIN of RADIO1 is connected to the left channel.
B – indicates fixed level audio from SUB of RADIO1 is connected to the left channel.
RADIO2:
A – indicates fixed level audio from MAIN of RADIO2 is connected to the left channel.
B – indicates fixed level audio from SUB of RADIO2 is connected to the left channel.
B17 – RIGHT
Selects the audio source connected to the right channel of Sound Card 2 Line In (MK2R) or “Digital” Audio
Codec (MK2R+).
(5) – Recording/Digital right channel audio status
RADIO1:
A – indicates fixed level audio from MAIN of RADIO1 is connected to the right channel.
B – indicates fixed level audio from SUB of RADIO1 is connected to the right channel.
RADIO2:
A – indicates fixed level audio from MAIN of RADIO2 is connected to the right channel.
B – indicates fixed level audio from SUB of RADIO2 is connected to the right channel.
Pressing the LEFT (B16) and RIGHT (B17) buttons at the same time enables WYH (What You Hear). The
WYH light will illuminate and headphone audio will be connected to the Recording/Digital input - left ear to left
channel and right ear to right channel.
NOTE: Do Not Use WYH during Digital operation (RTTY/PSK/etc.). This will result in headphone audio
being sent to the digital demodulators. Performance will be compromised when adjusting the
headphone level for operator comfort.
(6) – PHONES
Output for operator headphones
Connector: 6.3mm (1/4”) stereo
TIP – Left
RING – Right
SHELL – Common
(7) – MIC
Microphone input (headset microphone)
Connector: 3.5mm (1/8”) stereo
TIP – Signal
RING – NC
SHELL – Shield
(8) – MIX
Adjusts the level of mixing of audio from one ear into the other.
Mix is selected by the MODE button - when enabled the MIX light above the MODE button will light.
(9) – CW SPEED
Provides manual control of the WinKeyer2. Minimum and and Maximum speeds are defined by software.
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