Icom iF22SR instruction manual Glossary, What is squelch?

8 GLOSSARY

✔What is squelch?

A squelch circuit allows you to mute undesired noise while re- ceiving no signal and emit audio while receiving signals. This provides quiet standby. The [MONI] key cancels the squelch setting. This is useful to listen to weak signals that do not open the squelch.

✔Talk Range

The IC-F22SR is designed to maximize performance and im- prove transmission range in the field. However, the single most important factor in transmit range (talk power) is your surrounding environment. These radios are “line of sight” ra- dios and as such, transmission range is influenced by the de- gree to which you can “see” the other communicating party. Large concrete structures and heavy foliage or transmission from inside a building or vehicle will reduce your talk power.

•Optimal range: wide, open areas free of obstructions.

•Medium range: large buildings or trees blocking your line of sight.

•Minimum range: mountainous areas or areas of heavy fo- liage.

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