Vitec Group Communications
PTX-3 UHF Digital Hybrid IFB Transmitter
2 - 2
Audio Frequency Response:
100 Hz to 8 kHz, ±1 dB, IFB MODE
system response (see Rolloff)
30Hz to 20kHz ± 1dB,
200 & 400 MODE system
response (see Rolloff)
Rolloff:
Low frequency audio rolloff is Menu
selectable for 3 dB down at 35 Hz or 50
Hz
Signal to Noise Ratio:
90 dB typical (“A” weighted)
RF Power Output:
250 mW (nominal)
Output Impedance:
50 Ohms
Audio Input Levels:
0 dBu for Line, RTS1 & RTS2, -10 dBu
for ClearCom, and -42 dBu mic dry
inputs, +/-50VDC max
Audio Input Config:
Balanced and Unbalanced, rear panel
selectable for Line, Mic, RTS 1, RTS 2
and ClearCom
Audio Input Impedance:
Greater than 2 K balanced, greater than
1K unbalanced at any gain setting
Gain Control Range:
-18 dB to +24 dB (0 dB nominal center),
software selectable
Audio Input Jack:
Standard XLR female connector
Input Power:
12 to 14 VDC typical, 200 mA max; Max
input range 6 to 18 VDC
Power Input Jack:
Coax type, locking LZR RL26AE
