User's Guide

DE
DANIELS
ELECTRONICS
1-4 UHF Transmitter Instruction Manual UT-3 406 - 512 MHz
PTT Time-Out-Timer: Selectable from 1 sec. to 8 hrs. (factory set 5 min.).
Reference Frequency: 9.600000 MHz.
Channel Spacing: 12.5 kHz or 25 kHz.
Frequency Stability: Standard: ±1 ppm, -40°C to +60°C. Optional: high stability
external reference provided through front panel connection.
Channel Selection: In 12.5 kHz increments selected through four internal BCD
rotary switches. Preset capability for 16 channel memory
selectable through external control.
Standby Current and Rise time: 95% RF power, 95% system deviation within;
• 50 ms: typically 7 mA (normal configuration);
• 25 ms: typically 65 mA (synthesizer continuously enabled);
• 10 ms: typically 90 mA (synth. and audio circuitry enabled).
DOC Type Approval RSS119 142 194 241
RSS122 142 221 126
FCC Type Acceptance: H4JUT-3-420-S02 (406-430 MHz, 0.5-2.0 Watt),
H4JUT-3-420-S08 (406-430 MHz, 2.0-8.0 Watt),
H4JUT-3-460-S02 (450-470 MHz, 0.5-2.0 Watt),
H4JUT-3-460-S08 (450-470 MHz, 2.0-8.0 Watt).
Note: The transmitter is not to be operated within the 406 to 406.1 MHz frequency band, unless
specifically authorized by COSPAS/SARSAT through the Federal Communications Commission
and/or Industry Canada.
1.4.2 Audio Specifications
Audio Input: Balanced 600 ohm or unbalanced (optional).
Input level sensitivity, -25 dBm to 0 dBm.
Audio Response: Pre-emphasis (6 dB per octave); +0.5 to -2.0 dB from 300 Hz
to 3 kHz;
Flat Audio Response: +1 to -1 dB from 100 Hz to 3 kHz.
Audio Deviation: Preset to ±1.5 kHz or ±3.0 kHz with a 1 kHz tone;
(capable ±2.5 kHz or ±5.0 kHz).
Subtone Audio Input 1: 0.5 Vpp at 200 Hz for ±500 Hz deviation (internally
adjustable).
Subtone Audio Input 1 Freq range: 60 Hz to 300 Hz.