| programmed for the selected chan- |
| nel. |
| Enables the radio’s transmitter. Re- |
TALK BUT- | leasing PTT returns the radio to the |
TON (PTT) | receive mode. |
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.
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
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