E F Johnson Company 2425M70 Benutzerhandbuch
6-28
Conventional Features
Note
The channel spacing is not set with P25 channels because it is always narrow, and the
squelch cannot be changed because the setting is critical for proper receiver operation.
squelch cannot be changed because the setting is critical for proper receiver operation.
SQ ADJUST (Analog Only) - Changes the preset squelch setting on that channel. The
default setting is “0” and values of –7 to +7 can be selected. Increasing this setting
toward +7 causes the squelch to open sooner so that weaker signals can be received, and
decreasing it toward –7 causes the opposite to occur.
default setting is “0” and values of –7 to +7 can be selected. Increasing this setting
toward +7 causes the squelch to open sooner so that weaker signals can be received, and
decreasing it toward –7 causes the opposite to occur.
TG ID (P25 Only) - Selects the talkgroup for the selected channel. Rotate the Select
switch to display the alias of each preprogrammed talkgroup and then press it to store
the desired talkgroup. A single beep sounds when the switch is pressed (if that option is
selected).
switch to display the alias of each preprogrammed talkgroup and then press it to store
the desired talkgroup. A single beep sounds when the switch is pressed (if that option is
selected).
Transmit Type (P25 Mixed Mode Only) - If the selected channel is a mixed mode,
analog and P25 channel, this selects the transmit type. Either Analog or Digital (P25)
can be selected. This then determines if a Tx Code or Tx NAC is programmed above.
analog and P25 channel, this selects the transmit type. Either Analog or Digital (P25)
can be selected. This then determines if a Tx Code or Tx NAC is programmed above.
6.15
Text Messaging
If enabled, mobile radios have text message receiving capability (digital conventional
mode only).
mode only).
Note
Mobile radios can receive text messages, but cannot transmit them. All received messages
are limited to 200 characters.
are limited to 200 characters.
6.15.1 Data Setup for Text Messaging
A mobile subscriber can receive a text message from another subscriber on a digital
conventional channel regardless of whether the channel uses a repeater.
conventional channel regardless of whether the channel uses a repeater.
The radio’s text message menu contains the item “Set R to R”. The default for this setting
is enabled, in which the following capabilities are operable:
is enabled, in which the following capabilities are operable:
• A text message can be received from radios on a simplex digital channel
• A text message can be received from radios on a digital channel with a repeater (if
repeater talk-around is enabled)
• The repeater in use is programmed for Repeated Data mode (not supported by EFJ 2600
repeaters)
Draft 4/29/2014