Clear-Com PTX-3 - Manual (Page 10)

Vitec Group Communications
PTX-3 UHF Digital Hybrid IFB Transmitter
1 - 4
POWER DELAY
When powering the transmitter on and off, and when switching
between the XMIT and TUNE modes, intelligent circuitry adds brief
delays in order to allow time for circuits to stabilize, both locally and in
the matching receiver. These delays prevent clicks, thumps and other
transients in the audio.
MICROCONTROLLER
The microcontroller oversees most system operations, including RF
frequency and output, DSP audio functions, buttons and display, and
more. User settings are stored in non-volatile memory, so they are
retained even when the power is turned off.
TRANSMITTER
The PTX-3 transmitter operates at 250 mW to ensure a clean signal
free of dropouts and noise. All transmitter circuits are buffered and
filtered for excellent spectral purity. The clean RF signal reduces the
chances for interference in multiple transmitter installations.
ANTENNA SYSTEM
The included antenna is a right angle, ¼ wavelength monopole with a
BNC connector. It is constructed of polymer coated flexible steel cable.
The PTX-3’s 50 Ohm BNC output connector also works with a variety
of remote antennas for installation in studios and production trucks &
vans.
REAR PANEL CONTROLS AND FUNCTIONS
Figure 1-3: PTX-3 Rear Panel
XLR JACK
A standard XLR female jack accepts a variety of input sources
depending on the setting of the rear panel MODE switches. XLR pin
functions can be changed to suit the source depending on the