HP / Agilent 3585B Spectrum Analyzer, High Perf 20Hz-40MHz

HP / Agilent Spectrum Analyzers. Frequency range: 20 Hz to 40 MHz, Bandwidth: 3 Hz minimum, Dynamic range: 80–100 dB spurious-free.

Model
HP 3585B
Calibration
Available on request
Price
$4,824
RFQ ref
3585B
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This unit

The HP/Agilent 3585B is a spectrum analyzer covering 20 Hz to 40 MHz, engineered for precise baseband signal analysis in voice, video, and digital applications. This instrument delivers 80–100 dB spurious-free dynamic range with amplitude accuracy of ±0.25 dB across a measurement span of −137 dBm to +30 dBm. The 3 Hz minimum resolution bandwidth, combined with selectable 50 Ω, 75 Ω, and 1 MΩ input impedance, enables detailed characterization of low-level signals in complex environments.

Technical Specifications

Frequency range: 20 Hz to 40 MHz

Resolution bandwidth: 3 Hz minimum; selectable 3 Hz to 30 kHz (1, 3, 10 sequence)

Dynamic range: 80–100 dB spurious-free

Amplitude accuracy: ±0.25 dB typical

Measurement range: −137 dBm to +30 dBm

Input impedance: 50 Ω, 75 Ω, 1 MΩ (selectable)

Spurious responses: <−80 dB typical (relative to single signal at or below input range setting)

Noise floor: −85 dBc average (1 kHz bandwidth); −115 dBm typical (3 Hz RBW, −8 dBm signal, 0 dBm input range)

Built-in tracking generator: 50 Ω, 0 to 40 MHz, output −11 dBm to 0 dBm

Frequency counter: 0.1 Hz resolution, 0.3 second measurement time

Display: CRT with panel settings and marker readout

Trace storage: 10 complete measurements in non-volatile registers; two simultaneous traces (1024 × 1001 points)

Power requirements: 115 V (±11%, −25%), 48–440 Hz or 230 V (±11%, −18%), 48–66 Hz

Power consumption: 180 W, 3 A max

Probe power: +15 V dc, −12.6 V dc, 150 mA max

Key Features

Autoranging input attenuator optimizes dynamic range and minimizes distortion

Fully synthesized tuning for CW and swept measurements

Automatic peak search and signal tracking accelerate identification

Automatic limit test evaluates all 1000 measurement points against user limits

Noise level marker displays RMS noise density normalized to 1 Hz bandwidth

Absolute and relative (signal-to-noise) marker functions

Sweep gating option (Option 001) for burst signal analysis

Compatibility & Integration

HP-IB interface (IEEE 488-1978) with direct-plot capability

External display outputs: X, Y at 1 V full deflection; Z from 2.4 V

Compatible with HP active probe family

Probe power: +15 V dc / −12.6 V dc supply available

Specifications

ParameterValue
Frequency Range20 Hz to 40 MHz | Power Range (dBm): −137 dBm to +30 dBm | Voltage / Current Range: −18%), −25%), 115 V (±11%, 48–440 Hz or 230 V (±11%, 48–66 Hz

HP 3585B — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the HP 3585B. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

HP 3585B price

This HP 3585B is listed at $4,823.8. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

HP 3585B calibration cost

NIST-traceable calibration for the HP 3585B is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →