Input AC voltage 220 V, 50 Hz through the automatic circuit breaker and a thyristor is fed to the power rectifier, capacitive filter and then to a transistor inverter, the load of which is the output transformer.
The generator has a audio-frequency modulation mode, protection against overcurrent, smooth and scalar adjustments of the output voltage.
The generator features a special way of low-frequency modulation of the output signal. The modulation is performed by pulses of the rectangular shape with 1.5-3 Hz frequency, so that during the first half period of the modulating voltage the signal with 1024 Hz frequency is generated, while during the second half-period - one with 2048 Hz frequency. The advantage of this modulation method is that if the receiver accepts frequencies of 1024 Hz and 2048 Hz (for example, P-900), it would be possible to switch between the two on the receiver itself. In the continuous generation mode, the signal with 1024 Hz frequency is generated.
- Technical Specifications
- Operating Conditions
The device is designed for an indoors operation under the following conditions:
| Condition |
Value |
| Air temperature, °С |
from -20 to +40
|
| Relative humidity, %, up to |
80 at +25° С |
| Atmospheric pressure, kPa (mm hg) |
84,0 – 106,7 (630 – 800) |
| Characteristic |
Value |
Output power in the coherent mode, W, min
|
2500 |
| Maximum output voltage while ideling, V |
300 |
| Maximum output current, A |
50 |
| Generation frequency, Hz |
1024/2048 |
| Modulation frequency, Hz |
1.5-3 |
Number of stages to match of the load
|
12 |
Load resistance range
|
0.5...150 |
Single-phase AC power supply voltage, V
|
220±22
|
Maximum consumed power, W
|
3000 |
Dimensions, mm
|
320х360х200 |
Net weight, kg, max
|
15 |