Boonton 93A Overview
RMS Voltmeter. Covers 1mV - 300V. Full scale in 12 ranges. Impedance: -68 to +52dBm., Bandwidths: 10 Hz -20 MHz, or 10 Hz-100 kHz selectable. Accuracy: +/-1%. The Boonton 93A voltmeters are true rms responding instruments that use backward diodes as balanced, low level, square-law detectors. The 93A meter is calibrated with dBm as well as voltage scales. Calibrated & Certified.