| TECHNICAL SPECIFICATIONS |
| Carrier Output Power |
500 kW |
| Types of Emission |
AM (A3E) |
| Frequency Range |
5.9 MHz ∼ 26.1 MHz (2.8 MHz ∼ 5.9 MHz be configured) |
| Type of Modulation |
PSM |
| Final Power Amplifier |
Class C |
| Output Impedance |
300 Ω (Bal.) / 50 Ω (Unb.) |
| Max. Load VSWR |
≤2 |
| Max. Load VSWR |
100% (60 Hz ∼ 7500 Hz) |
| Spurious Emission |
Better than FCC and CCIR recommendations |
| Carrier Shift |
<3%, m=0.95 1000 Hz sine wave modulation |
| Modulation Unbalancedness |
<5% (m=0.95, f=1000 Hz) |
| Audio Input Impedance |
600 (Bal.) |
| Audio Input Level |
±10 dBm |
| Audio Frequency Response |
±1 dB (m=0.75 60 Hz ∼ 5000 Hz) ±2 dB (m=0.75 5000 Hz ∼ 7500 Hz) |
| Harmonic Distortion |
<3% (60 Hz ∼ 7500 Hz, m=0.9) |
| Signal to Noise Ratio |
≤-56 dB (m=1, 1000 Hz(Unweighted)) |
| Relative Humidity |
≤95% (25°C) |
| Primary Power |
Low Voltage: 380 V 3-phase
High Voltage: 10 kV 3-phase |
| Power Factor |
Cos φ ≥0.9 |
| Overall Efficiency |
≥70% |
| Max. Altitude |
4000 m |
| Ambient Temperature range |
+5°C ∼ +45°C |
| Specifications may change without notice |
The DF500A SW transmitter has the advanced control system and modular product structure. It is designed for reliable & high efficiency A3E mode. The core of new developed all-solid digital PSM modulator uses DSP+FPGA with features of fast speed, high efficiency, advanced technique and simple structure. The whole performances reach or exceed the similar product in the world.