Changing to Silent Operation
When silent operation is on, all the radio’s audible tones are turned off, and only channel traffic can be heard.
To turn silent operation on or off:
1. Press Menu and select Radio settings > Alertsettings > Silent operation.
2. In the Silent operation menu, scroll to either On or Off and press Select.
Depending on how your radio is programmed, you may be able to press a function key to toggle silent
operation on and off.
While silent operation is on, the icon appears in the display.
Turning On Active Noise Cancellation
Active noise cancellation uses a secondary microphone on the back of the radio to actively filter noise in loud
environments, making it easier for recipients to discern the speech of the talking party who is in a noisy environment.
Active noise cancellation can be left on regardless of environment. However, when safety features such as
Loneworker Monitoring, Emergency Operation or Radio Unit Monitor are activated, the listener may lose awareness
of the noisy environment. Tait recommends users implement supplementary procedures to account for this.
The complementary feature of microphone sensitivity allows the internal and external microphones to be configured to
suit the type of environment the user is in, further improving audio quality. When active noise cancellation is enabled,
sensitivity should be decreased. In a quiet environment, increasing the sensitivity is suggested.
Speaking to the side (nearest the noise canceling microphone) could result in both ambient noise and
voice being canceled. To use the radio correctly, and achieve the best results, Tait recommends
holding the radio 2 - 5 cm (1 - 2 inches) from the mouth and speaking directly into the front of the radio
speaker/microphone.
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Tait International Ltd July 2021
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