There is too much power being delivered to the instrument.
The Spectrum Analyser is a Swept Superheterodyne design and does not have preselection filters. Therefore, the mixer is seeing all of the power (full 9kHz-1.5GHz frequency range) regardless of what you have set for the start and stop values.
A fixed attenuator should be added to the input before running any more tests. Perhaps 10dB to start. Then, scan quickly (100kHz RBW) from 9kHz-1.5GHz and look for peaks near 10dB or greater. These spikes are overpowering the mixer and could damage the instrument.
Home / Knowledge Base / Knowledge Base Spectrum Analysers / Knowledge Base DSA800 Series / Why am I seeing the message “Intermediate Frequency Out of Range”?
Why am I seeing the message “Intermediate Frequency Out of Range”?
Posted on: December 16th, 2020 by Doug Lovell
Product Categories
AC Power Supplies / Frequency ConvertersDC Power Supplies
DC Electronic Loads
Test & Measurement
Safety Testers
EMC
Soldering Irons / Test Tools
Manufacturers
Rental
Service & Support
AboutContact
Newsletter
Returns
Terms and Conditions
Privacy Policy
Shipping & Delivery
My account
Copyright © 2024. All rights reserved by Telonic Instruments Ltd
Website operated by Jumping Giraffe Ltd. Jumping Giraffe Ltd is not responsible for content on external websites.