Motorola HT 1000, User Manual

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Select Call Select Call is mutually exclusive with Paging Initiation and Paging Cancel.
If Select Call is enabled, these other fields will be disabled. Use the UP/
DOWN arrow keys to enable or disable this field. If this option is
enabled and an ATIS transmission is sent with Select Call enabled, the
destination radio will generate Select Call beeps if the radio ID
matches.
The default is Disabled.
Group Unmute Use the UP/DOWN arrow keys to enable or disable this field. If this
field is enabled and an ATIS signal is received in which the Destination
Group ID in the message matches the Initiator Group ID in the
receiving radio, the radio will unmute to this message even if the
Individual IDs do not match. If Group Unmute is disabled, the
receiving radio will unmute/mute based on the Destination Group and
Individual ID decoded.
The default is Disabled.
PTT-ID Pretime Enter a value directly or use the UP/DOWN arrow keys to make your
selection for the time period that Silent Carrier is transmitted before
the ID data is sent. This pretime will allow the receiving unit to
stabilize before decoding the ID data. The range of valid values is 0
(zero) to 2550 ms in 10-ms increments.
The default is 20 ms.
PTT ID Bit Sync Enter a value directly or use the UP/DOWN arrow keys to make your
selection for the number of bytes of sync pattern to be transmitted
after pretime and before the transmission of actual ATIS Unit ID data.
This sync pattern allows the receiving unit to synchronize its decoding
algorithm with the transmitting unit. The range is 3 bytes to 255 bytes
in increments of 1 byte.
The default is 4 bytes (32 bits).
Auto-Timed Mute Duration (ms) Enter a value directly or use the UP/DOWN arrow keys to make your
selection for the period of time during which audio will be muted
automatically after carrier detection on a channel where signalling
decode is enabled on the CHANNEL CONFIGURATION screen (
F4/F4 ).
This timer is useful since digital data cannot be detected instantaneously,
and the DOS Mute function operating without this timer will allow a small
“squeak” of data to be heard through the speaker.
This timer should be set to as low a value as possible while still muting
the entire data transmission. A good value to start with is the Pretime
value plus 50 ms. When Auto-Timed Mute Duration is set to a non-
zero value, DOS Mute will be automatically enabled. The range of valid
values is 10 ms to 2550 ms in 10-ms increments. A value of Disabled is
also available.
The default is 550 ms.