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HOME Test and Measurement Test Sets Noise Test Sets Keysight Technologies (Agilent HP) 3708A For Sale Keysight formerly Agilent T&M 3708A

Keysight formerly Agilent T&M 3708A

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Description of Keysight formerly Agilent T&M 3708A

Categories: Test Sets, Noise Test Sets

Manufacturer: Keysight Technologies (Agilent HP)

Model: 3708A

Condition: Used

Seller: NSCA Technologies LLC

Keysight (formerly Agilent T&M) 3708A Noise and Interference Test Set

Description

Description

The Keysight / HP 3708A Noise and Interference Test Set provides an accurate method of assessing performance of microwave radio and satellite modem systems by providing the carrier to noise (C/N) and carrier to interface (C/I) necessary to make C/N and C/I versus bit error ratio (BER) measurements. Accurate and repeatable C/N and C/I ratios can be maintained even in the presence of severe signal variations. This unit can also be used to assess the performance of digital TV forward error correction (FEC) by assessing the tolerance of quasi-error free systems to injected noise and interference.

Product specifications of Keysight formerly Agilent T&M 3708A (From Used-Line T&M Specifications)

  • Launch Date
  • Status Discontinued by Manufacturer

The 3708A Noise and Interference Test Set offers an accurate, yet simple, method of simulating flat-fade conditions on a digital or FM microwave radio. It lets you inject noise of known spectral density into the IF section of a microwave radio link receiver to establish a demanded carrier-to-noise ratio. The radio IF carrier power is sampled by the 3708A at the point of noise injection and the noise density adjusted automatically to maintain a constant carrier-to-noise ratio in the presence of receiver carrier level variations.

  • Highly accurate wideband noise source covers all common microwave link IFs
  • Tracking mode maintains constant C/N ratio under carrier fading conditions
  • Broadband interference facility, with or without noise injection, stresses the radio deterministically
  • TRMS IF power meter
  • High stability 0 dBm reference tone (can be used as interferer)
  • Direct noise bandwidth measurement
  • Entry is unit of C/N0, Eb/N0, or C/N (C/N in user-defined bandwidth)
  • Fully programmable via the HP-IB interface
  • C/N and C/I measurement modes:
    • C/N ratio: Overall range -10 to 60 dB, accuracy better than 0.1 dB, response time typically 10 ms
    • C/I ratio: Inputs 10 to 200 MHz range, overall range: -10 to 60 dB, accuracy typically better than 0.1 dB
    • I input: Provides accurate C/I ratios to simulate interference conditions, valid interferer input power: Typically -29 dBm
    • Auxiliary I input: Provides a fixed-loss path to the IF output. Mixes an interferer with C/N rations to provide C/(N+I) ratios
    • Carrier Path: Gain 0 ±0.4 dB (typically 0 ±0.1 dB), Group delay: 0.2 ns, 3rd order intercept point typically +29 dBm
  • Noise generation level range N: +6 to -80 dBm
  • Power measurement (at power meter input):
    • Measurement range: + 6 to -55 dBm
    • Resolution: 0.01 dB
  • Reference tone output:
    • 70/140 MHz crystal-controlled oscillator
    • Level: Factory set to 0 dBm
    • Harmonic content: <-25 dBc
  • Insertion loss measurement:
    • Range: 35 dB to -5 dB
    • Accuracy: ±0.2 dB at 70 or 140 MHz
  • Noise bandwidth measurement:
    • Range: Function of insertion loss and filter bandwidth
    • Accuracy: ±0.4 dB  

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