| TECHNICAL SPECIFICATIONS |
| Power Output |
50,000 watts nominal unmodulated; capable 55,000 watts |
| RF Frequency Range |
3.2 to 22.0 MHz. Optional 3.95 to 26.5 MHz |
| Method of Tuning |
Manual, or selection of 10 pre-set channels |
| RF Output Impedance |
300/900 ohms, balanced |
| RF Frequency Stability |
±1 x 10-6 (±22 Hz at 22 MHz) |
| Spurious and Harmonic Emission |
Less than 50 mW |
| Carrier Shift |
Less than 2% at 95% modulation. Less than 5% at 100% modulation |
| Audio Frequency Response |
±1.5 dB from 50 to 10,000 Hz referenced to 1,000 Hz at 95% modulation |
| Audio Frequency Distortion |
Less than 3% from 50 to 10,000 Hz at 95% modulation |
| Noise |
55 dB below 1,000 Hz, 100% modulated level |
| Audio Input Level |
0 dBm ±2 dB for 100% modulation |
| Audio Input Impedance |
600/150 ohms, balanced or unbalanced |
| Modulation Level |
100% sinusoidal, continuous, 50-5000 Hz |
| Trapezoidal Modulation |
Less than 5% tilt or overshoot, 100 Hz to 2000 Hz |
| Power Input |
Any specified voltage 380V to 480V, 3 phase, 50 or 60 Hz |
| Power Consumption |
No modulation: 90 kW
30% modulation: 93 kW
100% modulation: 135 kW |
| Power Factor |
Greater than 95% |
| Voltage Regulator |
Electronic voltage regulator for all power supplies other than high voltage |
| Crowbar Response |
Less than 5 microsecond operate time |
| Overall Efficiency |
60% @ average modulation |
| Temperature Range |
0 to +50°C ambient air temperature |
| Humidity |
95% relative humidity, maximum |
| Storage Temperature |
-35°C to +60°C |
| Altitude |
Up to 1829 meters (6000 feet) above sea level |
| Cabinet Data |
Each of two cabinets measures 1.83 meters (6 feet) wide, 1.37 meters (4.5 feet) deep,
and 1.98 meters (6.5 feet) high. The heat exchanger adds another 1.06 meters (3.5 feet) in height |
| Specifications may change without notice |
The SW-50 is the 50 kW version of the SW-100, and includes: the Pulse Duration Modulator, which allows an unusually high overall efficiency of more than 60%; five tube design-only five tubes in the entire transmitter for highest reliability; continuous 100% modulation rating; quiet Vapor Phase cooling; pre-set tuning; and reduced floor space, due to the elimination of large iron core components.