MATCHING RF CHANNEL ACCESS TO SENSITIVITY
Original Publication Date: 1982-Jan-01
Included in the Prior Art Database: 2001-Oct-10
Initial or continued access to an RF channel for voice (or data) transmission can be accomplished through a codeword or ID exchange. This codeword may be a digital data block or it may be a tone. However, the channel sensltlvity for the codeword exchange is not necessarily the same as the channel sensitivity for the voice or data traffic, as perceived by the user. A sensitivity mismatch may cause the codeword processor to squelch an audio path even though the audio signal quality is acceptable to the user. Conversely, the codeword processor may unsquelch an audio path even though audio quality is at an unacceptable level. The codeword processor must have some flexibility and allow the designer to ad- just the codeword exchange sensitivity to a perceived audio or data transfer sensitivity.