DE
DANIELS
ELECTRONICS
VT-3H040 VHF Enhanced Transmitter Instruction Manual
1-3
1.4
Performance Specifications
1.4.1
General
The following is a general set of specifications for the generic VT-3H040 transmitter. Additional
specifications, specific to individual modules may be found in their respective submanuals.
Type:
MT-3 Series Transmitter
Family:
VT-3H040
Compatibility:
MT-2 Series and MT-3 Series Radio Systems
Frequency Range:
29.0 MHz to 50.0 MHz
RF Power Output:
3.0 Watt Fixed (± 1.5 dB with temperature and
supply voltage).
System Impedance:
50 ; Type N connector.
Duty Cycle:
100%: Continuous operation from -30˚ C to +60˚C
(optional -40˚ C to +60˚C).
Harmonic Emissions:
More than 90 dB below carrier.
Spurious Emissions:
More than 80 dB below carrier.
Transmitter Mismatch Protection:
20:1 VSWR at all phase angles.
Transmitter Alarm:
Forward power sense and reverse VSWR;
- open collector output (separate or 'OR'ed);
- linear output (separate lines only).
Modulation:
16K0F3E
Synthesizer Reference Frequency:
9.600000 MHz or 10.000000 MHz ; selectable.
Channel Spacing:
20 / 25 kHz
Frequency Stability:
Standard: ±1 ppm, -30˚C to +60˚C,
optional -40˚C to +60˚C
Channel Selection:
In 5 kHz or 6.25 kHz increments selected through
four internal BCD rotary switches. Preset capability
for 16 channel memory selectable through external
control.
