E F Johnson Company 2427240 Benutzerhandbuch

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BASIC OPERATION
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LTR-Net and LTR Operation
The LTR-Net and LTR modes provide automatic channel selection 
and monitoring before transmitting. Special tones and display messages 
indicate busy and out-of-range conditions, and telephone calls can be 
placed almost as conveniently as with your home telephone. 
Selecting a system selects a collection of up to 99 groups. Selecting 
one of these groups selects an ID code which determines the type of call 
(standard group, telephone, or special), the specific mobile or mobiles is 
being called (if applicable), and what calls are received. In addition, 
higher priority calls may be received (see page 45). 
The LTR-Net operating mode provides the most operating features. 
Exclusive LTR-Net features include roaming and Unique ID and Directed 
Group calls. When operating in LTR-Net sites, calls may be made to 
mobiles in other sites as well as the current site. LTR-Net and LTR 
features are described starting on page 45
Conventional Operation
In the conventional mode, selecting a system selects a conventional 
channel, and selecting a group selects the special Call Guard squelch 
coding (if used) and other unique parameters on that channel such as call 
indicator operation. The Call Guard coding determines the mobile or group 
of mobiles being called and also the mobiles from which calls are received 
(see “Call Guard Squelch” on page 51).
In the conventional mode, a busy condition is detected automatically 
if the Transmit Disable On Busy feature is used. Otherwise, it must be 
detected manually as described in “Monitoring Before Transmitting” on 
page 49
. Unsuccessful access conditions cannot be detected with conven-
tional signaling, so are not indicated by special tones or display 
messages. Refer to “Operation At Extended Range” on page 60 for infor-
mation on how to determine if an out-of-range condition may exist.