Operating instructions

5-34 ES Series Models II/III Portable Radio Operating Manual
Conventional Mode Features
- Power SW - Switchable power selectable by the High/Low power button. This choice
is not available if that button is not programmed.
5.15.6.1 CTCSS / DCS Squelch Control (Analog Channel)
Tx Code - Programs the transmit Call Guard (CTCSS/DCS) code. The currently
selected code and is initially displayed. Press the Up/Down buttons to select the desired
code type (CTCSS analog or DCS digital). Then press <F2> to select it and enter the
code number similar to programming a channel frequency as just described.
Rx Code - Selects the receive codes the same as Tx Code above.
5.15.6.2 NAC Squelch Control (Project 25 Channel)
TX NAC - Programs the transmit Network Access Code (NAC) which can be any
number from 0-4095. With later models, this number is displayed in hexadecimal from
000-FFF. The procedure is similar to programming a TX FREQ just described. If an
invalid code is entered, a beep sounds, “Invalid” is briefly displayed, and the code must
be re-entered.
RX NAC - Selects the receive NAC the same as RX NAC above.
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.
5.16 Text Messaging
If enabled, portable radios have full two-way text messaging capability (digital
conventional mode only).
Note Text messaging requires a full (DTMF) keypad. All text messages, either sent or received,
are limited to 200 characters.
5.16.1 Data Setup for Text Messaging
A portable radio can send a text message to another radio on a digital 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:
• A text message can be sent between radios on a simplex digital channel