DETECTOR

Transmitters and Receivers Glossary

Transmitters and Receivers — Detector

 

 

 

 

 

 

Argos Home

 

 		 
 


Information on Detector

The output of the IF amplifier is applied to the detector, which recovers the information from the modulated signal. To receive Morse code, most communications receivers incorporate a beat-frequency oscillator (BFO) into the detector stage. The BFO operates at 1 kHz or 400 Hz above or below the last IF. Transitions in the RF carrier are translated into transitions in the IF, which the BFO translates into audible tones. The BFO is switched off during normal voice reception to prevent interference.


 

Please contact Argos Press if you wish to propose related terms to improve our glossary. © Argos Press Pty Ltd, Canberra, 2003-2004. All rights reserved. Please contact Argos Press for information on licensing our content (including this glossary entry on Detector).