02/99 IPN: 409-20400-02 19u The currently selected character can be deleted from the message by pressing theClear key ( ).Using Alphanumeric Entry ModeAlphabetic characters can be included in the SDM as follows:1 Press the Alphanumeric key ( ) to enter alphanumeric entry mode.While alphanumeric entry mode is active, the ALPHANUMERIC indicator is illuminatedand the alphabetic characters marked on the keypad are now available for inclusion inthe SDM.2 Specify the required alphabetic character by using the alphanumeric keys, as follows:u Pressing a key with three or more alphabetic characters toggles it between thevalues shown on the keypad and a blank space. For example, a single press of thekey selects 3, two presses selects D, three presses selects E and fourpresses selects F. A further press of the key selects a blank space.u The key toggles between a 0 and a blank space.u The key toggles between a 1, a dash and a blank space.3 Once the required character is displayed, select by pressing the Enter key ( ).The selected character is then moved one place to the left, and the flashing cursorremains at the point of entry, ready to accept the next character.Alternatively, the displayed character can be selected by pressing a different Alphanu-meric key. While this method is quicker that using the Enter key, it can be used onlywhen the next character does not require the use of the same key.An alphabetic message can be edited in the same way as a numeric message.Sending an SDM1 Once the SDM has been entered, press the Star key ( ).2 Enter the number of the party to whom you wish to send the message, either in thesame fleet, or inter-fleet.3 Press the Hash key ( ) to make the call.The SDM is transmitted and SDM entry mode is exited. The STATUS indicator turns offand the display shows the most-recently transmitted valid call. The SDM is stored andis displayed next time SDM entry mode is activated.Note: An SDM will only be displayed on the receiving radio if that radio has firmware support-ing short data messaging.Exiting SDM Entry ModeSDM entry mode can be exited manually and automatically under the following conditions:1 Manually, by pressing the Hash key ( ) to send a message (see “Sending anSDM”.1