Motorola P Series Manuale di vendita - Pagina 29
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Detailed Features/Benefits Description
Some community repeater licenses insist that users are able to monitor the channel before
transmitting.
Note : It is not possible to Monitor a channel if the corresponding radio personality has been pro-
grammed for Busy Channel Lockout. If the radio user presses the Monitor button while on a channel
with Busy Channel Lockout enabled, the audio error tone will sound.
3.4.5
Busy Channel Lockout
The Busy Channel Lockout feature helps to ensure effective and efÞcient communications by
preventing radio users from transmitting over the top of ongoing conversations.
Busy Channel Lockout also increases system privacy by preventing radio users from activating the
Monitor function and listening to conversations that are not intended for them. This is particularly
relevant to your customers who share a community repeater with other organizations.
The P Series radios support two different sets of criteria for activating Busy Channel Lockout:
On Busy Channel
On Busy Channel with Wrong PL
Busy Channel Lockout may be conÞgured on a per-channel basis.
Note : if Busy Channel Lockout has been conÞgured for a channel, the radio user will not be able to
activate the Monitor function on that speciÞc channel.
To better understand the beneÞts of Busy Channel Lockout, consider the following hypothetical
customer application:
A security Þrm have approached you to help them increase the effectiveness of their staff at a local
shopping mall. You have discovered that the shopping mall is already supported by a community
repeater which is used by shops based in the complex, and suggest equipping the security guards
with P Series radios.
The terms and conditions for using the community repeater licence state that the customer's radios
must not interrupt the conversations of the other organizations, or be capable of eavesdropping.
You are able to meet these requirements by supplying your customer with P Series radios with
"Busy Channel Lockout" enabled on all channels. This will allow the security staff to communicate
without interfering with, or over-hearing, the conversations involving the other organizations.
Table 2-15 Channel Busy Lockout Criteria
Criteria
Operation
Prevents transmission on the current channel
when carrier is detected.
This prevents the user from interrupting any
ongoing conversation on the channel.
Prevents transmission on the current channel
when carrier is detected with a PL code that
does not match the current channel receive
PL code setting.
This prevents the radio user from interrupting
any ongoing conversation on the channel
OTHER THAN a conversion involving the
appropriate PL group.
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