EF JOHNSON 5100 ES II, Руководство по эксплуатации, Страница: 45 / 144

December 2006 5100 ES Model II/III Portable Radio Operating Manual 3-15
General Operation
The maximum number of channels assignable to a system is limited to 512. Channels may
also be limited by available memory space as described in the following information.
3.9.4.2 Channels
A channel selects a radio (RF) channel or talk group as follows:
Conventional Analog Mode - A channel selects a specific radio channel, Call Guard
(CTCSS/DCS) squelch coding, and other parameters unique to that channel.
Conventional Project 25 Mode - A channel selects a specific radio channel, NAC
squelch coding, talk group ID, and other parameters unique to that channel.
SMARTNET/SmartZone and Trunked Project 25 Modes - A channel selects a
specific talk group, announcement group, emergency group, and other parameters
unique to that talk group.
A maximum of up to 512 channels can be programmed with the preceding modes. These
channels can belong to a single system or multiple systems. The maximum number is also
limited by the available memory. For example, since more memory is required to program
a SMARTNET system than a conventional system, the total number of channels decreases
as the number of SMARTNET channels increases. The programming software displays a
bar graph which shows the amount of available memory space that is used by the current
data.
3.9.4.3 Zones
A zone is a collection of up to 16 channels of any type. For example, a zone could include
12 conventional channels and four SMARTNET channels. One use of zones may be to
program the channels used for operation in a different geographical areas. The maximum
number of zones is 32.
3.10 Radio Tune Test Mode
Radio Tune Test Mode is entered by pressing Side Button 2 during the interval between
the initial display and the completion of the self test. Pressing Side Button 2 after the self
test has completed has no noticeable effect on the radio other than its programmed
functionality. I.e., if Side Button 2 is pressed after the self test has completed, the radio
operates normally and Radio Tune Test Mode cannot be entered while the radio remains
powered.