User's Manual

Performance Specifications
Overall Transmitter Specifications
Parameter Specification Reference
Operating Temperature Range -30°C to +60°C
Optional -40°C to +60°C
Optional -50°C to +40°C
Type MT-3 Series Transmitter
Family VT-3A130
Frequency Range 118 - 137 MHz
System Impedance 50 ΩType N
RF Power Output 1.0 – 3.0 Watts adjustable (carrier only) RTCA DO-186A
Paragraph 2.3.1
Emission of Radio Freq. Energy More than 50 dB below carrier RTCA DO-186A
Paragraph 2.3.7(b)
Carrier Noise Level More than 45 dB below carrier RTCA DO-186A
Paragraph 2.3.6
Duty Cycle 100%; Continuous operation from -30°C to +60°C
Optional -40°C or -60°C
Channel Spacing 25 KHz
Emission Identifier 6K00A3E and 5K6A3E Amplitude Modulation
Operating Humidity 95% Relative Humidity (Non-condensing) at +25°C
Operating Voltage +13.8 VDC Nominal +9.5 VDC regulated
Active Current +13.8 VDC supply < 2A @ 25°C, at 3 Watts RF output
<2.5A -40˚C to +60˚C
Channel Selection In 25 kHz increments selected by four BCD switches.
Preset capability for 16 channels selectable through
external control.
Frequency Stability Standard: ±1 ppm -40°C to +60°C
± 2 ppm, -50°C to -40°C
RTCA DO-186A
Paragraph 2.3.11
FCC Type Approval H4JVT-3A130-F
Industry Canada Certification 142A-VT3A130F
PTT Time-Out-Timer Selectable 1 seconds to 8 hours.(factory set 5 min)
Standby Current (9.5 VDC)
and Rise time
Refer to Transmitter Standby Modes in Theory of
Operation