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PUSH-TO-
TALK BUT-
TON (PTT)
KEYPAD
The keypad layout is similar to a standard telephone
keypad but with three additional buttons at the top for a
total of 15 keys. In addition to numbers, most of the keys
have special functions and are labeled as such using a
symbol or abbreviated word describing its primary func-
tion. Numeric entry is a secondary function of the keys.
Each key is described below.
programmed for the selected chan-
nel.
Enables the radio's transmitter. Re-
leasing PTT returns the radio to the
receive mode.
Figure 4 - M-RK II Keypad
Primary function - changes the sys-
tem or group/channel (depending on
programming); secondary function -
changes to a selection for items
19
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