HF High power transmitter
The high power HF transmitters can be set to deliver 500 W or 1 kW PEP output power from 2 to 30 MHz in all modes and at 100% duty cycle.
The transmitters come as a complete package with a 2050 high duty cycle exciter, power supply, RF linear power amplifier; interconnect cables, AC power distribution panel and all rack mount hardware.
The RF power amplifier is a rugged solid state unit with a comprehensive LCD display that displays the amplifier operating parameters. No tuning adjustments are required and the amplifier’s ALC system protects the unit from severe mismatches.
The switch mode power supply operates from supply voltages between 90 to 250 VAC with no switching and at all power levels.
General specifications
| Frequency coverage | 1.6 MHz to 30 MHz |
| Channel capacity | 500 |
| Modes | USB/LSB/AFSK |
| Power output | 500 W PEP |
| Duty cycle | 100% at 500 W PEP Voice 100% at 500 W ARQ 100% at 500 W FEC |
| Exciter | Barrett 2050 HF transceiver |
| Line input (to exciter) | 600 ohm balanced |
| Linear amplifier | |
| Excitation power | 50 to 80 Watts |
| ALC voltage (output) | 0 to 10 V |
| Spurious radiation | Less than -50 dB (typical) |
| Third-order IMD | Less than -31 dB @ 1000 W PEP (typical) |
| Input impedance | 50 ohm, unbalanced |
| Output impedance | 50 ohm, unbalanced |
| Humidity | 95% relative non-condensing |
| Input impedance | 50 ohm, unbalanced |
| Output impedance | 50 ohm, unbalanced |
| Humidity | 95% relative non-condensing |
| Dimensions | Width – 483 mm (standard 19” rack mount) Height – 175 mm (4RU) Depth – 600 mm (including cable bends) |
| Weight | 23 kg |
| Power supply | |
| Output | +48 V DC at 50 A +12 V DC at 3.0 A -12 V DC at 0.5 A |
| Input | 90 to 250 VAC |
| Dimensions | Width – 483 mm (standard 19” rack mount) Height – 175 mm (4RU) Depth – 600 mm (including cable bends) |
| Weight | 15 kg |
