4
Microphone Input
Plug into the XLR or TRS jack input. Microphone level inputs may be amplified from 0
to +70dB in 1dB steps and monitored on the loudspeaker or headphones and
metered. 48 volt phantom power may be switch on or off. This input is available on
the XLR output.
Tone Generator
The tone generator outputs sine wave frequencies from 50Hz to 20kHz in third
octave steps.
The tone is available on the XLR output and the output level may be monitored and
metered. Level may be set from -60dB to +12dB in 1dB steps.
Noise Generator
Pink noise and white noise are available on the XLR output at levels from -60dB to
+12dB. The output may be monitored and metered.
Phantom check
Phantom power voltage on pins 2 and 3 of the male XLR may be measured.
Tolerance is +- 1 volt.
4Wire Box
The Testa may be used as a four wire box using the built in mic. Press the PTT (push
to talk) button to talk. Speaker level will be dimmed when talking to prevent howl
round. Headphones will not be dimmed. The
display shows ‘TALK’ when the button
is pressed. Internal microphone gain may be adjusted form 0 to +70dB. The meter
may be set to show input or output levels in the Setup menu.
2wire Mon
2 wire audio may be monitored and metered on pin 2, pin 3 or both pins
simultaneously. 2wire monitoring is not suitable for use with Clearcom beltpacks due
to the way the calling system operates.
Tone Loop
This is useful for testing external equipment. Plug the XLR output into the equipment
under test. Plug the equipment output back into the Testa. Alter the levels or
frequency as required. This facility may be set to monitor input or output levels using
the settings menu.
