Revision as of 09:45, 3 September 2024 edit Cewbot (talk \| contribs) Bots 8,375,328 edits m Fixing broken anchor: Reminder of an inactive anchor: down-converted Tag: Reverted ← Previous edit		Latest revision as of 03:15, 30 May 2025 edit undo Cewbot (talk \| contribs) Bots 8,375,328 edits m Fixing broken anchor: Remove 1 notification (When checking links to Analog-to-digital converter) Tag: Manual revert
Line 10: ===Down-convert and digitize stage=== A vector signal analyzer operates by first down-converting the signal spectra by using [[superheterodyne receiver\|superheterodyne techniques]]. A portion of the input signal spectrum is [[Superheterodyne receiver#High-side and low-side injection\|down-converted]]{{Broken anchor\|date=2024-09-03\|bot=User:Cewbot/log/20201008/configuration\|target_link=Superheterodyne receiver#High-side and low-side injection\|reason= The anchor (High-side and low-side injection) [[Special:Diff/418818267\|has been deleted]].}} (using a [[voltage-controlled oscillator]] and a [[Frequency mixer\|mixer]]) to the center frequency of a [[band-pass filter]]. The use of a [[voltage-controlled oscillator]] allows consideration of different carrier frequencies. After the conversion to an [[intermediate frequency]], the signal is [[electronic filter\|filtered]] in order to band-limit the signal and prevent [[aliasing]]. The signal is then [[digitizing\|digitized]] using an [[analog-to-digital converter]]. [[Sampling rate]] is often varied in relation to the frequency span under consideration.

Vector signal analyzer: Difference between revisions