User's Guide

P25 Digital UHF Transmitter Instruction Manual
IM23-001
General Information
3
PTT Time-Out-Timer: Programmable from 1 sec. to 8 hrs or infi nity. (Default 5 min.), using
Radio Service Software package.
Channel Spacing: 12.5 kHz or 25 kHz.
Frequency Stability: Standard: ±1.0 ppm, -30°C to +60°C.
Channel Selection: In 5.0 or 6.25 kHz increments selected with Radio Service Software
package.
Standby Current: Transmitter with no encryption modules installed:
Standby ≤ 75 mA
Transmitter with encryption modules installed:
Standby ≤ 105 mA
DOC Type Approval: TBA
FCC Type Acceptance: TBA
Audio Specifi cations
Audio Input: Balanced, 600Ω or optional unbalanced input (600 Ω or 15000Ω
selectable input impedance)
Audio Response: Pre-emphasis (6 dB per octave); +1 to -3 dB from 300 Hz to 3 kHz
Audio Deviation Limiting: +/- 2.5 kHz, +/- 5.0 kHz
Audio Distortion: < 3% THD; 1 kHz tone at 1.5 kHz or 3 kHz deviation
Hum and Noise: -34 dB typical