Icom IC-F4161D Operating Guide For Biis/mdc/ltr - Page 29

IDAS OPERATION, ■ IDAS Multi-site conventionaloperation, ■ Roaming function, operation

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5 IDAS OPERATION ■ IDAS operation ■ IDAS Multi-site conventional 1 The transceiver provides Icom Digital Advanced System operation 2 (IDAS) that meets the 6.25 kHz emission mask requirements 3 for narrow banding, and increases efficiency of channel allocation and use of spectrum using the NXDN common air The IDAS Multi-site Conventional can support up to 16 sites (each site has one repeater) through an IP network, and ena- 4 interface. bles efficient conventional operation in the digital mode. 5 Push [Zone], then push [CH Up] or [CH Down]* to select the The optional UT-126H provides 6.25 kHz digital mode opera- Multi-site conventional zone. 6 tion for the transceiver that does not support digital communication. * The method to select the desired zone may differ, depending on your system set up. 7 8 NOTE: During IDAS operation, BIIS 1200, MDC 1200 sys- ■ Roaming function 9 tem and LTR operations are not available. (Multi-site Trunking mode only) 10 ■ IDAS-Trunk operation The Multi-site Trunking mode allows the transceiver to move to another site, according to the preprogrammed roaming 11 list*, in order to find a site that has a higher quality signal, or 12 The IDAS-Trunk system enables further effective channel management by sharing a minimum of channels with a large provides better services. The Roaming function is automatically activated when the 13 number of users. transceiver goes out of the range and does not receive the 14 Push [Zone], then push [CH Up] or [CH Down]* to select the downlink signal from the repeater in the current registered IDAS-Trunk zone. site. 15 * The method to select the desired zone may differ, depending on * The valid roaming areas (up to 48) are listed on the roaming 16 your system set up. list. Ask your dealer for details. NOTE: During IDAS-Trunk operation, you can receive and transmit digital calls in the same way with the following IDAS operation. Depending on the preprogrammed settings, the transceiver tries to register to the repeater that has the strongest RSSI level in the last registered site or adjacent site. This roaming type takes time than other roaming types. Ask your dealer for details. 26

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5
IDAS OPERATION
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■
IDAS operation
The transceiver provides Icom Digital Advanced System
(IDAS) that meets the 6.25 kHz emission mask requirements
for narrow banding, and increases efficiency of channel al-
location and use of spectrum using the NXDN common air
interface.
The optional UT-126H provides 6.25 kHz digital mode opera-
tion for the transceiver that does not support digital commu-
nication.
NOTE:
During IDAS operation, BIIS 1200, MDC 1200 sys-
tem and LTR operations are not available.
■
IDAS-Trunk operation
The IDAS-Trunk system enables further effective channel
management by sharing a minimum of channels with a large
number of users.
Push
[Zone]
, then push
[CH Up]
or
[CH Down]
* to select the
IDAS-Trunk zone.
* The method to select the desired zone may differ, depending on
your system set up.
NOTE:
During IDAS-Trunk operation, you can receive and
transmit digital calls in the same way with the following
IDAS operation.
■
IDAS Multi-site conventional
operation
The IDAS Multi-site Conventional can support up to 16 sites
(each site has one repeater) through an IP network, and ena-
bles efficient conventional operation in the digital mode.
Push
[Zone]
, then push
[CH Up]
or
[CH Down]
* to select the
Multi-site conventional zone.
* The method to select the desired zone may differ, depending on
your system set up.
■
Roaming function
(Multi-site Trunking mode only)
The Multi-site Trunking mode allows the transceiver to move
to another site, according to the preprogrammed roaming
list*, in order to find a site that has a higher quality signal, or
provides better services.
The Roaming function is automatically activated when the
transceiver goes out of the range and does not receive the
downlink signal from the repeater in the current registered
site.
* The valid roaming areas (up to 48) are listed on the roaming
list. Ask your dealer for details.
Depending on the preprogrammed settings, the transceiver tries
to register to the repeater that has the strongest RSSI level in
the last registered site or adjacent site. This roaming type takes
time than other roaming types. Ask your dealer for details.