The ruggedly built, multifunction Model 4391A RF POWER ANALYST® features a digital display, microprocessor-based operation, and simplified, push-button control. This wattmeter is well suited to C3, telemetry, two-way communications, avionics and radar, as well as standard radio and television applications.

• Frequency: 0.45 to 2700 MHz. Power: 100 mW to 10 kW with 20% over-range.
• Reads forward and reflected CW or FM power in watts or dBm, Peak Envelope Power of SSB/DSB and symmetrical AM in watts, and peak power for pulses as narrow as 0.8 µs.
• Calculates SWR, return loss in dB and % modulation
• Stores peak and null readings to facilitate adjustment of maximum and minimum signal levels.
• Shock-resistant keyboard and range switches. RFI protection. Built-in international power supply/charger.