HP/Agilent/Keysight 339A Distortion Measurement Test Set

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339A:339A
MPN:339A
HP:HP

Hewlett Packard/Agilent 339A Distortion Measurement Test Set Comes with what you see in the pictures. If you don’t see it, you probably wont get it. Specifications are from and may vary slightly due to upgrades, options, or revisions this unit may or may not have. This set is guaranteed to work for 30-days, parts and labor, excluding freight. There is broken plastic on the bezel of the meter. Description: The Model 339A Distortion Measurement Set combines a low distortion signal source, a high resolution distortion analyzer, an rms responding voltmeter and a VU (volume units) meter in one unit. The signal source used in the Model 339A is a “bridged-T” oscillator which provides a low distortion sine-wave signal from 10 Hz to 110 kHz. The output amplitude is variable from 1 mV rms to 3 V rms into a 600 ohm load and is maintained by an amplitude contorl circuit which minimizes amplitude variations even when changing frequency ranges. The distortion analyzer section of the 339A contains a tracking notch filter which is tuned to the oscillator frequency. The analyzer measures total harmonic distortion (THD) from 100% full-scale to .01% full-scale in nine ranges and features both automatic “Set Level” and automatic “Nulling” to greatly simplify operation. The Auto Set Level feature automatically sets the reference level over a 10 dB range. If the input signal is outside this range, a LED on the fron panel indicates whether the INPUT RANGE control setting must be increased or decreased to be within the “pull-in” range of the Auto Set Level. The Auto Nulling feature is fully automatic when the 339A internal oscillator is used as the signal source. When an external oscillator is used as the signal source, an LED on the front panel indicates which direction the FREQUENCY controls must be set to be within the Auto Nulling range. Distortion characteristics of the input signal can be monitored at the MONITOR OUTPUT terminals with external equipment (oscilloscope, voltmeter, spectrum analyzer, etc.) to provide additional analysis of the distortion products. The Model 339A is equipped with an amplitude modulation (AM) detector which has a frequency response from 550 kHz to 1.6 MHz. The AM detector permits the measurement of modulation distortion. The 339A contains three active filters, one high-pass and two low-pass, which enables the user to eliminate unwanted frequencies and noise to permit high resolution measurements. The ac voltmeter section of the 339A measures the rms value of input voltage from 1 mV full-scale to 300 V full-scale in twelve ranges. In the VU meter mode, the meter response characteristics are changed to those of a volume units meter. Distortion Specifications: Fundamental Frequency Range: 10 Hz to 110 kHz continuous frequency coverage in 4 decade ranges with 2-digit resolution. Distortion analyzer and oscillator are simultaneously tuned. Distortion Measurement Range: 0.01% full scale to 100% full scale (-80 dB to 0 dB) in 9 ranges. Detection and Meter Indication: True rms detection for waveforms with crest factor Distortion Measurement Accuracy: 20 Hz to 20 kHz: ±1 dB 10 Hz to 50 kHz: +1, -2 dB 50 kHz to 110 kHz: +1.5, -4 dB Note: The above specifications apply for harmonics Fundamental Rejection: 10 Hz to 20 kHz: > 100 dB 20 kHz to 50 kHz: > 90 dB 50 kHz to 110 kHz: > 86 dB Distortion Introduced by Instrument (Input > 1 V rms): 10 Hz to 20 kHz: 20 kHz to 30 kHz: 30 kHz to 50 kHz: 50 to 110 kHz: Residual Noise (Fundamental frequency setting Input Level for Distortion Measurement: 30 mV to 300 V rms (100 mV range minimum) Input Impedance: 100 kΩ ±1.0% shunted by DC Isolation: Input low may be connected to chassis ground or floated 30 V to reduce the effects of ground loops on the measurement. Auto Set Level: No set level adjustment required. Distortion measurements are made directly over 10 dB range selected by input range switch. Two LED annunciators provide a fast visual indication to change input range for valid distortion measurement. Correct range is indicated when both annunciators are extinguished. Auto Null: Using Internal Oscillators: No manual frequency tuning necessary when using internal oscillator as signal source. Oscillator frequency controls simultaneously tune the analyzer. Using External Frequency Source: Two LED annunciators provide a quick visual indication for the operator to increase or decrease the analyzer frequency controls. When the analyzer is rough tuned to within one least significant digit of the fundamental frequency, the indicator lights are extinguished and the 339A auto-null circuitry takes over to provide a fast accurate null without tedious operator tuning. Input Filters (usable on all functions): Low Pass: 30 kHz – 3 dB point at 30 kHz, + 2.6 kHz, -3 kHz. Provides band limiting required by FCC for proof-of-performance broadcast testing. 80 kHz – 3 dB point at 80 kHz, +7 kHz, -7.9 kHz. Normally used with fundamental frequencies High Pass: 400 Hz – 3 dB point at 400 Hz, +35 Hz, -40 Hz. Normally used with fundamental frequencies > 1 kHz to reduce the effect of hum components in the input signal. Monitor Output: Provides scaled presentation of input signal after fundamental is removed for further analysis using oscilloscope or low frequency spectrum analyzer. Output Voltage: 1 V rms ±5% open circuit for full scale meter indication, proportional to meter deflection. Output Resistance: 1 kΩ ±5%. Voltmeter Specifications: Voltage Range: 1 mV rms full scale to 300 V rms full scale (-60 dB to +50 dB full scale, meter calibrated in dBV and dBm into 600 Ω) Frequency Range: 10 Hz to 110 kHz Accuracy (% of range setting): 20 Hz to 20 kHz: ±2% 10 Hz to 110 kHz: ±4% Detection and Meter Indication: True rms detection for waveforms with crest factor Input Impedance: 100 kΩ ±1.0% shunted by Monitor Output: Provides scaled presentation of input signal for further analysis using oscilloscope or low frequency spectrum analyzer. Output Voltage: 1 V rms ±5% open circuit for full scale meter indication, proportional to meter deflection. Output Resistance: 1 kΩ ±5%. Relative Input Level Specifications: Provides a ratio measurement relative to an operator selected reference level with readout directly in dB V or dBm (600 Ω). Voltage range, frequency range, accuracy specifications, and monitor are the same as in VOLTMETER mode. (Accuracy is relative to 0 dB set level input.). Oscillator Specifications: Frequency Range: 10 Hz to 110 kHz in 4 overlapping decade ranges with 2 digit resolution. Frequency vernier provides continuous frequency tuning between 2nd digit switch settings. Output Level: Variable from 3 V rms into 600 Ω with 10 dB/step LEVEL control and 10 dB VERNIER adjustment. OSC LEVEL position on function switch allows a quick check of oscillator level without disconnecting leads to device under test. OFF position on Oscillator LEVVEL control provides fast signal-to-noise measurement capability. Oscillator output terminals remaind terminated in 600 &Omega. Frequency Accuracy: ±2% of selected frequency (with FREQUENCY VERNIER in CAL position). Level Flatness: 20 Hz to 20 kHz: +0.1 dB 10 Hz to 110 kHz: ±0.2 dB Distortion (> or = to 600 Ω load, 10 Hz to 20 kHz: 20 kHz to 30 kHz: 30 kHz to 50 kHz: 50 kHz to 110 kHz: Output Resistance: 600 Ω ±5% AM Detector Specifications: Frequency Range: Carrier Frequencies: 550 kHz to 1.6 MHz Modulation Frequencies: 20 Hz to 20 kHz. Distortion Introduced by AM Detection (with 30 kHz filter switched IN): Up to 85% Modulation: 85% to 95% Modulation: Input Level: Maximum: 60 V peakModulation Signal Level: 2.0 v rms minimum, 10 V rms maximum Monitor Output (with modulated RF carrier applied to AM Detector input): Distortion Mode: Provides scaled presentation of demodulated input signal after fundamental is removed. Voltmeter and Relative Input Mode: Provides scaled presentation of demodulated input signal. Note: Output Voltage and Output Resistance are the same in Distortion mode. General Specifications: Operating Environment: Temperature: 0°C to 50°C Humidity Range: Storage Temperature: -40°C to +65°C. Power: 100/120/220/240, +5%, -10%, 40 to 66 Hz, 200 mA max. Weight: 8.2 kg. (18 lbs.) Dimensions: 426 mm W x 146 mm H x 442 mm D (16.75″ x 5.75″ x 17.4″ D) For Domestic Customers: Packaging, handling, and order processing included in shipping in all domestic shipments as quoted by the shipping calculator. For International Customers there is a $10.00 minimum for packaging, handling, and order processing. International shipping to be determined by destination. Prior to shipment I will need to know the following information (filled out on a form that I will send you) for International Customers or Packages/Freight being Forwarded internationally. International customers may also be subject to a freight forwarder form if applicable.: (1) Are you the end-user of this item? (2) If you are not the ultimate end-user of the item, please state the ultimate end user’s name. (3) What is the ultimate country destination? 03/19/22

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HP/Agilent/Keysight 339A Distortion Measurement Test Set

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