Pacific Industries Audio Generator Ag-51

US $1700

Chula Vista, California, United States
Nov 19th

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The Potomac Instruments AG-51 20 Hz to 200 kHz Audio Generator https://testequipment.center/Product_Documents/Potomac-Instruments-AG-51-Specifications-3C7BF.pdf The AG-51 Audio Generator contains a low distortion 20 Hz to 200 kHz sine wave generator, an SMPTE standard intermodulation signal generator and a fixed frequency sine wave generator at 3.15 kHz for wow and flutter tests. Signal outputs are simultaneously available at levels of up to +20 dBm (equivalent sine wave power for complex signals) at separate left (L OUT) and right (R OUT) output connectors. Outputs may be selected for left (L) only, right (R) only, left and right in phase (L+R), and left and right in phase opposition (L-R). Fully balanced or unbalanced outputs at impedance levels 150 ohms or 600 ohms are front panel selectable. Three precision attenuators (10, 1.0 and 0.1 dB) provide a dynamic range of 99.9 dB in 0.1 dB steps. Attenuator dials display the output level directly in dBm in the 150 ohm source impedance configuration. Automatic output leveling circuitry with a built-in self-test feature provides a constant output level thereby eliminating the need for output metering. In the TEST mode the generator output level is reduced to zero, a useful feature during noise measurements. The time constant of the leveling control loop is determined by a front panel switch. For rapid frequency response measurements, this switch is set to the FAST RESPONSE position. This feature enables the operator to evaluate frequency response of the device under test (amplifier, filter, etc.) with a manual sweep of the frequency dial and multiplier switch. For distortion measurements, the switch is set to the LOW DIST position. This mode of operation provides minimum distortion with a slightly longer control loop time constant for accurate signal analysis at any specific frequency. AG-51 SPECIFICATIONS Frequency Range: 20Hz to 200kHz in four decade ranges Outputs: L R L+R L-R IM SIG 3.15 KHz Left only Right only Left & Right in phase Left & Right 180° out of phase Composite 60Hz & 7kHz @ 4:1 ratio, (SMPTE Standard) Fixed wow & flutter signal, (IEEE Standard 193-1971) Output Impedance Unbalanced Fully Balanced 150 or 600 ohms, switch selected 150 or 600 ohms, switch selected Output Level (no atten.) Sine Wave Signals IM Signal +20dBm (7.75 V) across 600 ohm load, 15.5 V open circuit 0dBm (0.387 V) across 150 ohm load, 0.774 V open circuit Peak-to-peak voltage of composite waveform is equal to peak-to-peak voltage of +20dBm sine wave across 600 ohm load, 0dB sine wave across 150 ohm load Output Level Accuracy ± db (20Hz - 100kHz) ± dB (100kHz - 200kHz) Attenuation Range 0 to 99.9 dB in 0.1dB steps Attentuation Accuracy 0 to 10 db >10 db ± 1.5% of attenuation in dB ± 2dB (maximum) Intrinsic Distortion * Harmonic: 20Hz - 10kHz 10kHz - 20kHz Intermodulation Incidental FM(3.15kHz) Low Distortion: Fast Response: less than 0.05% less than 1% less than 0.8% less than 1% less than 0.03% less than 0.01% Hum and Noise less than 80 dB below rated output Dial Accuracy ± 3% Power 117 Vac, (230 Vac option) 50/60 Hz, 9W Weight with cover, lb. (kg) 12 (5.44) Dimensions Optional Raction Mount 15.25 (38.74) W; 5.25 (13.34) H; 10.13 (25.75) D 5.25 (13.34) Rack space required