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Signal Hound SP145 Product Manual

Signal Hound SP145 Product Manual

Spectrum analyzer 100 khz to 14.5 ghz

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SP145 Spectrum Analyzer
Product Manual

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Summary of Contents for Signal Hound SP145

  • Page 1 SP145 Spectrum Analyzer Product Manual...
  • Page 2 Signal Hound SP145 User Manual Published 10/19/2023 ©2023, Signal Hound 1502 SE Commerce Ave, Suite 101 Battle Ground, WA Phone 360-313-7997 This information is being released into the public domain in accordance with the Export Administration Regulations 15 CFR 734...
  • Page 3: Table Of Contents

    Contents 1 Overview ................................4 2 Preparation ................................ 4 3 Understanding the SP145 Hardware ......................6 4 Troubleshooting ............................... 9 5 Calibration and Adjustment ..........................9 6 SP145 Preliminary Specifications ......................... 10 7 Warranty and Disclaimer ..........................12 8 Appendix ................................. 13...
  • Page 4: Overview

    200 GHz/s. The built-in GPS can be used to discipline the time base, as well as provide time stamping and location information. The SP145 uses a low IF architecture. It collects 245.76 million analog samples per second and processes them in the FPGA to 61.44 million corrected I/Q samples per second, which it streams to the PC.
  • Page 5 USB-C cable into your PCs USB-C or Thunderbolt 3 port, and then plug the USB 3.0 C connection into the SP145 device. Your PC may take a few seconds to recognize the device and install any last drivers. Wait for this process to complete before launching the Spike software.
  • Page 6: Understanding The Sp145 Hardware

    2.5A supply with a positive center and an 11 mm barrel. If a USB-C cable other than the included cable is used between the PC and the SP145, it must be rated for 3 amps and at least 5 Gbps and be no longer than 2 meters.
  • Page 7 When the RF input level exceeds -20 dBm, attenuation is required to make accurate measurements and avoid compression. Below 40 MHz, the SP145 is a direct conversion system. A high linearity differential amplifier directly drives the ADC. Above 40 MHz, the SP145 is a low IF architecture, using quadrature mixers and temperature- compensated correction factors to cancel the image response.
  • Page 8 For the SP145, swept modes default to a flat top window, which offers excellent amplitude flatness and therefore very little scalloping loss, in exchange for a wider resolution bandwidth and longer processing time. Most RBWs used by the SP145 are from flat top windows, so scalloping loss is negligible.
  • Page 9: Troubleshooting

    Protecting the SP145 RF Input 3.5 Protecting the SP145 RF Input The SP145’s input attenuator and front-end switches can be damaged by ESD above 1.5 kV HBM and has a damage level just above +20 dBm peak (not RMS). Some common events which may lead to front end damage include: 1) Applying more than +20 dBm peak power, such as an antenna exposed to a radar pulse.
  • Page 10: Sp145 Preliminary Specifications

    SP145 Preliminary Specifications | Protecting the SP145 RF Input 6 SP145 Preliminary Specifications The following preliminary specifications are based on being in the preset condition, using internal time base, video processing set for average and power, plus VBW, sweep, gain, and attenuation in the default auto mode.
  • Page 11 SP145 Preliminary Specifications | Protecting the SP145 RF Input Spurious Mixer Responses* -40dBc (any ref level from 0dBm to -30dBm, in 5dB increments, input signal 12  d B below ref level, and ≤30kHz RBW) IP2 * Frequency Input IP2 typical 0.1 - 500 MHz...
  • Page 12: Warranty And Disclaimer

    This Signal Hound product has a warranty against defects in material and workmanship for a period of two years from date of shipment. During the warranty period, Signal Hound will, at its option, either repair or replace products that prove to be defective.
  • Page 13: Appendix

    7.5 Certification Signal Hound certifies that, at the time of shipment, this product conformed to its published specifications. 7.6 Credit Notice Windows®...
  • Page 14 Appendix | Typical Performance Characteristics of the SP145...
  • Page 15 Appendix | Typical Performance Characteristics of the SP145...