Ericsson KH-500, Operator'S Manual, Page: 23 / 64

23
Channel Busy Lock-out
If channel busy lock-out has been programmed on
the selected channel, the transmit function will be
inhibited when the operator press the PTT button while
the radio detects a carrier on the channel unless the
carrier is modulated with the corresponding Channel
Guard tone or code for that selected channel. Channel
busy lock-out continues to function if Channel Guard
decode is disabled with the MONITOR button. The
channel-busy feature is programmable on a per-
channel basis.
Type 99 Alert Tone
The Type 99 alert tone, indicating a receive Type
99 call, may be enabled or disabled by programming. If
the programmed tone sequence is detected, the radio
will beep until the second paging tone expires. If the
alert tones are disabled, no alert tones will be present
when a Type 99 call is received.
The Type 99 alert tones can only be turned off by
disabling ALL alert tones.
NOTE