Owner's Manual

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4. Input monitor – Select this to monitor the signals coming in to
the DM-RTA unit. This will loop out the incoming signal or test
tone if that is what you are using – if there is an RCA input that
you are looking at on the RTA, you can still have the audio running
through the intended signal path. This should operate like a tape
loop monitor from those sunny audio days when we were young.
5. Input level – This allows you to adjust the input level used in the
RTA, SPL, and Polarity Checker tools. Move the sliding ball left (to
increase) or right (to decrease). The setting can be dierent for
each of the DM-RTA tools.
6. Selected input – This does not select the input, but it sets the
gain to an appropriate level for the input you are using. So if you
are using the microphone input, select this here. The setting can
be dierent for each of the DM-RTA tools.
7. Gain dB – This numerical value can be changed by using the
mouse and entering a new value using your computer keyboard.
It gives some ne control compared to just dragging the input
level control (5).
8. 48V – Select this only if you are using a microphone that re-
quires 48V Phantom Power. Note that some microphones can
be damaged by using Phantom Power, so make sure you reallly
need it, before selecting this button.
9. Green light of goodness – This green light will appear if the
DM-RTA device has been recognized by the DM-RTA software
application.
10. Battery Charge – This percentage value indicates how much
the internal battery is charged. The device will automatically
charge if it is connected to the supplied power supply adapter.
The Charge LED on the device will light when it is charging.
Use only the supplied power supply adapter. There are approxi-
mately ve hours of play time from a fully charged device
before it needs to be recharged.
Warning: Do not leave the device unattended while charging.
Chapter 8: The Display: Top Line Controls