HP / Agilent 3335A Synthesizer/Level Generator

HP / Agilent RF Signal Sources. Resolution: 0.001 Hz, Resolution: 0.01 dB, Accuracy: ±0.05 dB (50/75 Ω).

Model
HP / Agilent 3335A
Calibration
Available on request
Price
$886
Status
In stock
RFQ ref
3335A
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This unit

The HP/Agilent 3335A Synthesizer/Level Generator delivers precise, stable signal generation from 200 Hz to 81 MHz with 0.001 Hz resolution. This dual-function instrument combines a synthesized signal source with programmable level control and sweep capabilities, making it ideal for telecommunications testing, R&D measurement, and production verification. The 3335A operates as a tracking generator when paired with selective level measuring equipment, and offers exceptional frequency stability and spectral purity across its entire range.

Technical Specifications Frequency Performance

Range: 200 Hz to 81 MHz (standard); extended ranges available with options for 750 Hz start frequency and alternate impedances

Resolution: 0.001 Hz

Stability (long-term): ±1 × 10⁻¹⁰/day; ±1 × 10⁻⁷/month; ±1 × 10⁻⁸/day with internal temperature-controlled oscillator

Option 001 high-stability reference: ±5 × 10⁻⁸/day aging rate Signal Quality

Harmonic distortion: <−45 dBc (200 Hz–10 MHz); <−40 dBc (10–80 MHz)

Phase noise: −63 dBc @ 9.9 MHz; −70 dBc @ 20 MHz; −64 dBc @ 40 MHz; −58 dBc @ 80 MHz

Spurious signals: greater of −75 dBc or −125 dBm (50/75 Ω) Amplitude Control

Output range: −86.98 to +13.01 dBm (50 Ω); −88.74 to +11.25 dBm (75 Ω)

Resolution: 0.01 dB

Absolute accuracy: ±0.05 dB (50/75 Ω); ±0.1 dB (124/135/1500 Ω) at 100 kHz

Flatness: ±0.07 dB (1 kHz–25 MHz, 50/75 Ω); ±0.15 dB (200 Hz–80 MHz, 50/75 Ω)

Attenuator accuracy: ±0.025 dB across 81 MHz range Sweep Functions

Linear sweep: 0.01 s to 99.99 s

Logarithmic sweep: 2 s to 99.99 s (single); 0.1 s to 99.99 s (continuous)

Phase-continuous frequency sweeping over any range

Key Features

Multiple output impedance options: 50 Ω, 75 Ω, 124 Ω, 135 Ω, 150 Ω, 1500 Ω

HP-IB programmability per IEEE Standard 488-1975

Tracking generator compatibility with HP 3746A/B SLMS and HP 3586A/B/C selective level meters

Compact form factor: 132.6 mm H × 425.5 mm W × 497.8 mm D; 10 kg net

Typical Applications

Telecommunications system characterization

Component and subsystem testing

Production acceptance testing

Network analyzer source operations

Specifications

ParameterValue
Frequency Range200 Hz to 81 MHz | Power Range (dBm): '-86.98 dBm to +13.01 dBm (50 Ω)

HP / Agilent 3335A — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the HP / Agilent 3335A. Calibration covers output frequency accuracy, output power level accuracy across the full frequency range, AM/FM/PM/pulse modulation accuracy, harmonic and spurious output levels, and phase noise floor verification. All calibrations ship with a NIST-traceable 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

Common HP / Agilent 3335A faults: YIG oscillator failure (no output or loss of lock), step attenuator wear (output drops or steps at set attenuation), ALC loop failure (uncontrolled output power), I/Q modulator assembly failure. HP/Agilent 836xx series most common faults are YIG oscillator failure and step attenuator contact wear causing output steps or drops at specific attenuation settings. Keysight E4428C/E4438C units most commonly develop ALC loop failure and I/Q modulator assembly faults. YIG oscillator replacement and attenuator service are stocked repairs.

HP / Agilent 3335A price

This HP / Agilent 3335A is listed at $885.58. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

HP / Agilent 3335A calibration cost

NIST-traceable calibration for the HP / Agilent 3335A is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers output frequency accuracy, output power level accuracy across the full frequency range, AM/FM/PM/pulse modulation accuracy, harmonic and spurious output levels, and phase noise floor verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →

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