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FREQUENCY Measurement Range 476 μHz to 100 kHz, baseband and zoomed. Spans 191 mHz to 100 kHz in a binary sequence. Center Frequency Anywhere within the measurement range subject to span and range limits. Accuracy 25 ppm from 20°C to 40°C. Resolution Span/400 Window Functions Blackman-Harris, Hanning, Flattop and Uniform. Real-time Bandwidth 100 kHz SIGNAL INPUT Number of Channels 1 Input Single-ended or true differential Input Impedance 1 MΩ, 15 pf Coupling AC or DC CMRR 90 dB at 1 kHz (Input Range < -6 dBV) 80 dB at 1 kHz (Input Range <14 dBV) 50 dB at 1 kHz (Input Range ≥ 14 dBV) Noise 5 nVrms/√Hz at 1 kHz typical, 10 nVrms/√Hz max. (-166 dBVrms/√Hz typ., -160 dBVrms/√Hz max.) AMPLITUDE Full Scale Input Range -60 dBV (1.0 mVpk) to +34 dBV (50 Vpk) in 2 dB steps. Dynamic Range 90 dB typical Harmonic Distortion No greater than -80 dB from DC to 100 kHz. (Input Range ≤ 0 dBV) Spurious Input range ≥ -50 dBV: No greater than -85 dB below full scale below 200 Hz. No greater than -90 dB below full scale to 100 kHz. Input Sampling 16 bit A/D at 256 kHz Accuracy ± 0.3 dB ± 0.02% of full scale (excluding windowing effects). Averaging RMS, Vector and Peak Hold. Linear and exponential averaging up to 64k scans. TRIGGER INPUT Modes Continuous, internal, external, or external TTL. Internal Level: Adjustable to ±100% of input scale. Positive or Negative slope. Minimum Trigger Amplitude: 10% of input range. External Level: ±5V in 40 mV steps. Positive or Negative slope. Impedance: 10 kΩ Minimum Trigger Amplitude: 100 mV. External TTL Requires TTL level to trigger (low<.7V, high>2V). Post-Trigger Measurement record is delayed by 1 to 65,000 samples (1/512 to 127 time records) after the trigger. Delay resolution is 1 sample (1/512 of a record). Pre-Trigger Measurement record starts up to 51.953 ms prior to the trigger. Delay resolution is 3.9062 μs. Phase Indeterminacy <2° DISPLAY FUNCTIONS Display Real, imaginary, magnitude or phase spectrum. Measurements Spectrum, power spectral density, time record and 1/3 octave. Analysis Band, sideband, total harmonic distortion and trace math. Trace Math Add, subtract, multiply, and divide with a constant, ω (2πf), or another trace. Log (base 10), square root, phase unwrap and d/dx functions. Graphic Expand Display expands up to 50x about any point in the display. MARKER FUNCTIONS Harmonic Marker Displays up to 400 harmonics of the fundamental. Delta Marker Reads amplitude and frequency relative to defined reference. Next Peak/Harmonic Locates nearest peak or harmonic to the left or right. Data Tables Lists Y values of up to 200 user defined X points. Limit Tables Automatically detects data exceeding up to 100 user defined upper and lower limit trace segments. SOURCE OUTPUT Amplitude Range 0.1 mVpk to 1.000 Vpk Amplitude Resolution 1 mVpk (Output>100 mVpk); 0.1 mVpk (Output ≤ 100.0 mVpk) DC Offset <10.0 mV (typical) Output Impedance < 5 Ω; ±50 mA peak output current. SINE Amplitude Accuracy ±1% (0.09 dB) of setting, 0 Hz to 100 kHz, 0.1 Vpk to 1.0 Vpk, high impedance load. Frequency Resolution 15.26 mHz (1 kHz/65536) Harmonics, Sub-Harmonics, 0.1 Vpk to 1 Vpk 0 to 10 kHz <-80 dBc 10 kHz to 100 kHz <-70 dBc Spurious Signals <-100 dBV (typical, line frequency related) TWO TONE Amplitude Accuracy ±1% (0.09 dB) of setting, 0 Hz to 100 kHz, 0.1 Vpk to 0.5 Vpk, high impedance load. Frequency Resolution 15.26 mHz (1 kHz/65536) Harmonics, Sub-Harmonics 0.1 Vpk to 0.5 Vpk 0 to 10 kHz <-80 dB below larger tone 10 kHz to 100 kHz <-70 dB below larger tone Spurious Signals <-100 dBV (typical, line frequency related) WHITE NOISE Output is 0 Hz to 100 kHz at all measurement spans. Flatness <0.25 dB pk-pk (typical), <1.0 dB pk-pk (max) (5000 rms averaged spectra, Source Cal on). PINK NOISE Output is 0 Hz to 100 kHz at all measurement spans. Flatness <4.0 dB pk-pk, 20 Hz - 20 kHz (measured using 1/3 octave analysis, Source Cal on). CHIRP Output is equal amplitude sine waves at each frequency bin of the measurement span. Flatness Measured spectra (all spans, Source Cal on) <0.05 dB pk-pk (typical), <0.2 dB pk-pk (max), Amplitude=1.0 Vpk. Phase Auto Phase function calibrates to current phase spectrum. GENERAL Monitor Monochrome CRT. 640H by 480V resolution. Adjustable brightness and screen position. Interfaces IEEE-488, RS232 and Printer interfaces standard. All instrument functions can be controlled through the IEEE-488 and RS232 interfaces. A PC keyboard input is provided for additional flexibility. Hardcopy Screen dumps and table and setting listings to dot matrix and HP LaserJet compatible printers. Data plots to HP-GL compatible plotters (via RS232 or IEEE-488). Disk 3.5 inch DOS compatible format, 720 kbyte capacity. Storage of data, setups, data tables, and limit tables. Power 60 Watts, 100/120/220/240 VAC, 50/60 Hz. Dimensions 17"W x 6.25"H x 18.5"D Weight 36 lbs. Warranty One year parts and labor on materials and workmanship.