USB-SA44B Spectrum Analyzer
User Manual
Page 1: ...USB SA44B Spectrum Analyzer User Manual...
Page 2: ...Manual 2016 Signal Hound Inc 35707 NE 86th Ave La Center WA 98629 USA Phone 360 263 5006 Fax 360 263 5007 This information is being released into the public domain in accordance with the Export Admini...
Page 3: ...iii Contents 1 Preparing for Use 1 2 Getting Started 2 3 Theory of Operation 7 4 Troubleshooting 8 5 Calibration and Adjustment 9 6 Specifications 10...
Page 4: ...iv 7 Warranty and Disclaimer 13...
Page 5: ...weighing only ten ounces the Signal Hound can be used virtually anywhere 1 1 INITIAL INSPECTION Check your package for shipping damage before opening Your box should contain a USB cable a CD ROM and a...
Page 6: ...exceed 20 dBm or damage may occur A READY BUSY LED flashes orange each time a command from the computer is processed The rear panel has three connectors 1 10 MHz Reference input automatically detecte...
Page 7: ...Getting Started Front Rear Panels 3...
Page 8: ...elatively immune from this effect 3 Two RF input signals spaced by 42 8 MHz will generate a spurious response halfway between the two RF input signals This spurious response will not be present when a...
Page 9: ...settings two preamplifier settings two ADC clock frequencies and three IF gain settings when measuring signals and performing image suppression Unless you explicitly disable the automatic settings th...
Page 10: ...surements The level of the external timebase must be 0 dBm 13 dBm is recommended to achieve optimal phase noise performance To use simply connect the timebase to the Ext Ref In after connecting the US...
Page 11: ...odes I Q streaming This is used for real time mode frequency domain and zero span mode time domain In this mode the USB SA44B continuously mixes a fixed LO frequency with the RF input and streams the...
Page 12: ...1 4 IF and RBW Selection The I Q data comes in over USB and is processed using an FFT with a custom Flat Top window based on the selected RBW Software and firmware limitations only allow certain very...
Page 13: ...may consider using a low phase noise external reference or contacting us about lower phase noise options Be aware that the Signal Hound phase noise is noticably higher than a YIG based spectrum analy...
Page 14: ...ect to external 10 MHz timebase 0 to 20 dBm Frequency Readout Accuracy reference error 1 sample 1 Marker Accuracy reference error 1 sample Resolution Bandwidth 0 1Hz to 250KHz and 5MHz 2 Spectral Puri...
Page 15: ...ference level 0 dBm 0 25 dB Maximum Safe Input Level preamp off 15 dB atten 20dBm DC Volts 0 2V absolute maximum 16VDC option 3 Residual Responses Input terminated 100 KHz span 0 dB atten preamp on 80...
Page 16: ...IF BW 100 KHz to 4 4 GHz 0 dBm to 70 dBm after 10 min warmup 0 25dB Maximum IF Bandwidth 240 KHz Audio Filters Low Pass Digital Windowed Sinc selectable cutoff Band Pass Available in version 2 xx leg...
Page 17: ...and Disclaimer 2015 Signal Hound All rights reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws 7 1 WARRANTY The...
Page 18: ...interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product No other warranty is expressed or implied Test Equipment Plus specifically disclai...
