Clear-Com PTX-3 - Manual (Page 15)

Vitec Group Communications
PTX-3 UHF Digital Hybrid IFB Transmitter 1 - 9
Figure 1-8: Setup Window
Initially the active menu item is EXIT. Pressing the Up and Down keys
permits navigation among the remaining menu items: TUNING,
COMPAT and ROLLOFF.
Pressing the MENU button selects the current menu item. Selecting
EXIT navigates back to the Main window. Selecting any other item
navigates to the associated setup screen.
ROLLOFF SETUP SCREEN
The ROLLOFF setup screen controls the low frequency audio
response of the PTX-3 by moving the 3 dB corner of a 4 pole lowpass
digital filter. The 50 Hz setting is the default, and should be used
whenever wind noise, HVAC rumble, traffic noise or other low
frequency sounds may degrade the quality of the audio. The 35 Hz
setting may be used in the absence of adverse conditions, for a fuller
bass response.
Figure 1-9: ROLLOFF Setup Screen
Press MENU to return to the Setup window.