Blocking (radio)

In radio, and wireless communications in general, blocking is a condition in a receiver in which an off-frequency signal (generally further off-frequency than the immediately adjacent channel) causes the signal of interest to be suppressed.^[1]

Blocking rejection is the ability of a receiver to tolerate an off-frequency signal and avoid blocking. A good automatic gain control design is part of achieving good blocking rejection.^[2]

References

1. ↑ Qizheng Gu (2005). RF system design of transceivers for wireless communications. Springer. p. 271. ISBN 978-0-387-24161-6. 
2. ↑ Ian Hickman (2007). Practical radio-frequency handbook (4th ed.). Newnes. p. 161. ISBN 978-0-7506-8039-4.