Extron Electronics VTG 400D_400 DVI User Guide - Manual (Page 23)

2-13 VTG 400D/400 DVI • Installation and Operation
Burst on
Specify the number of active cycles in each burst (0 through 65,535 cycles).
The number of active cycles in a burst must always be less than or equal to
the total number of cycles in an interval.
Audio Setup submenu (3 of 5)
The starting and ending frequencies of the frequency sweep audio test signal are
specified from this submenu.
F. Sweep Start Freq
Specify the frequency sweep start frequency (20.0 Hz through 19.0 kHz).
The start frequency can never be set greater than the stop frequency.
F. Sweep Stop Freq
Specify the frequency sweep stop frequency (21.2 Hz through 20.0 kHz).
The stop frequency can never be set lower than the start frequency.
Audio Setup submenu (4 of 5)
The format and direction of the frequency sweep audio test signal are specified
from this submenu.
F. Sweep Format
• Log (default) – sweep logarithmically (more time spent in the lower
frequencies)
• Linear – sweep linearly (equal time spent in each frequency)
F. Sweep Direction
• Lo->Hi – sweep from the start frequency to the stop frequency
• Hi->Lo – sweep from the stop frequency to the start frequency
See the Audio Setup submenu (3 of 5) earlier in this chapter.
Audio Setup submenu (5 of 5)
To prevent damage to connected audio equipment, audio muting and the
automatic attenuation of the square wave signal can be specified from this
submenu.
Audio Mute
• ON – enable audio muting
• OFF (default) – disable audio muting
Square Wave Auto Attenuate
• ON – automatically attenuate the square wave signal to -40 dBu when
toggling through the audio signals
• OFF (default) – disable automatic attenuation of the square wave signal