microHAM MK2R Manual page 45

Channel assignments for SC2 (Digital):
TX DIGITAL – Select Wave channel
RX RECORDING/DIGITAL – Select Line In
If these selections are not available, you may need to replace the sound card (or select another sound
card in your system).
NOTE: Because Windows can reassign sound cards while in use, Router may not invoke the proper
mixer. To check that the proper mixer has been assigned, click the Get ID button and confirm that the
proper sound card is selected. If the names do not match, restart Router.
REC MIC (software voice message recording level)
This control adjusts the level of microphone signal which will be used for recording
voice messages by the logging application. If channel is active, the green rectangle
light is on. If not, click on TX Mixer button and and select or unmute the Microphone
control.
Recording level: slider sets the level of the microphone input to the analog to digital
converter. Speak to the microphone and set slider to the position where on
peaks "stacked LED" display show RED on occasional peaks.
VU meter: this "stacked LED" displays shows the audio level into the analog to digital
controller. Please note, display operates only if a sample rate has been
selected.
Sample Rate: sets the sample rate used for the REC MIC level displays. It is best to
set the sample rate to a multiple of the sample rate (or "clock rate") of your
applications.
TX MIC (live mic microphone input level)
This control adjusts the level for the "live" microphone used for transmitting through sound card
with Cm Audio Switching scheme. If the mic channel is active the green rectangle is on. If not,
click on the TX Mixer button and unmute the microphone control.
TX VOICE (voice message – transmit levels)
These controls adjusts the output levels in VOICE modes. If the channels
are active, the green rectangles, one for each radio, will be on. If not,
click the TX Mixer button and unmute the master Volume (Speaker) and
Wave controls.
There are four (4) sliders, two for RADIO1 (R1) and two for RADIO2 (R2).
Each pair has a WAVE slider and MASTER slider (the Master Volume or
Speaker control). The pair used for each radio is determined by the
Left/Right channel selector on the Audio Switching tab.
As a starting point, set the MASTER levels to 70% and adjust the hardware controls for
proper drive levels as documented under "Setting Audio Levels." The WAVE sliders are
only used to set the playback level from non-microHAM DVK software.
TX Mixer: this button opens the Windows Volume Control (Playback Mixer) for the
selected sound card.
GET ID: this button will retrieve the name and number of the sound card used for
transmit functions. The name can be used to verify that the correct sound card has been
selected. The displayed number can be used to configure software that identifies sound
cards only by number.
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