10515-0372-4200, Rev. R
20
3.8.2 Using Noise Cancellation
When using the noise cancellation feature, observe the following:
• Verify NOISE CANCELLATION is enabled (see Section 3.8.1).
• Ensure the primary and secondary microphones are not covered. See Section 3.8.4 for more
information on the primary and secondary microphones.
• Talk within two (2) inches of primary microphone (see Figure 3-5).
• Speak clearly, loudly, and with authority.
• If possible, face the noise source when talking into the radio (see Figure 3-5).
• In very noisy environments, it is o.k. to yell into the radio. The radio can handle very loud input
levels.
Figure 3-5: Using the Noise Cancellation Feature
3.8.3 The Effect of Distance from the Microphone
Unlike a normal microphone system, noise cancellation makes the level of your voice diminish quickly as
you move away from the radio. In essence, the radio starts to see your voice as surrounding noise.
Whereas, you may be comfortable speaking up to a foot away under normal operation, noise cancellation
requires that you hold the radio close.
To Next Page
Loading...
