Hewlett Packard 3581A 15 Hz to 50 kHz
Spectrum Analyzer Specifications

FREQUENCY CHARACTERISTICS
Range	15 Hz to 50 kHz
Display	5 digit LED readout
Resolution	1 Hz
Accuracy	± 3 Hz., 0 to 55°C
Typical Stability	± 10 Hz/hour after 1 hour and ±5 Hz/°C
Automatic frequency control (AFC) hold-in range	± 800 Hz
AMPLITUDE CHARACTERISTICS
Instrument Range
Linear	30 V to 100 nV full scale
Log	+30 dBm or dBV to -150 dBm or dBV
Amplitude Accuracy
Frequency response, 15 Hz - 50 kHz	Log: ± 0.4 dB Linear: ± 4%
Dynamic range	> 80 dB
Noise Sidebands	greater than 70 dB below CW signal. 10 bandwidths away from signal.
Spurious responses	> 80 dB below input reference level
SWEEP CHARACTERISTICS
Scan Width	50 Hz to 50 kHz, adjustable in a 1-2-5 sequence from 50 Hz to the full frequency range
Sweep Error Light	This LED indicates a sweep that is too fast to capture full response. When the light is on, response will be lower than it should be.
External Trigger	A short to ground stops the normal sweep. Opening the short then enables a sweep.
INPUT CHARACTERISTICS
Impedance	1 MΩ, 30 pF
Maximum Input Level	100 V rms, ± 100 V dc
OUTPUT CHARACTERISTICS
Tracking generator output (also known as BFO or tracking oscillator output)
Range	0 tp >1 V rms into 600 Ω
Frequency Response	± 3% 15 Hz to 50 kHz
X-Y Recorder Analog Outputs
Vertical	0 to +5 V ±2.5%
Horizontal	0 to +5 V ±2.5%
Impedance	1 kΩ
Recommended Accessory	HP 7090A Measurement Plotting System
Pen Lift	contact closure to ground during sweep
Restored Output	acts as a narrow band amplifier
GENERAL
Power Requirements	100V, 120V, 220V, or 240V +5% -10%, 48 Hz to 440 Hz, 10 VA typical
Size	203.2 mm H X 285.8 mm W X 412.8 mm D (8" X 11 1/4" X 16 1/4")
Weight	11.5 kg (23 lb). Opt 001: 13.5 kg (30 lb)

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Hewlett Packard 3581A 15 Hz to 50 kHz Spectrum Analyzer Specifications

Hewlett Packard 3581A 15 Hz to 50 kHz
Spectrum Analyzer Specifications