User's Manual

P25 - SRM9030 RADIO – OPERATING INSTRUCTIONS

6. SPECIAL FUNCTION KEYS

Several function keys are simply short cuts to a menu screen. For further information on the

operation of these function keys, refer to the menu descriptions in section 4.

6.1 ALARM

Sets alarm mode on the radio. All transmissions in alarm mode will have the emergency flag

set.

6.2 CHANNEL UP AND DOWN

These functions change channel in the upward (F3) or downward (F2) directions.

6.3 C

RYPTO

A short cut to the Crypto menu. Allows selection of the encryption key.

6.4 L

OWER

Forces the radio to low power. Pressing the function button again puts the radio back to the

power level defined for the current channel. The “forced low power state” is not affected by

channel/zone changes.

The RF power level is indicated by the letter L of H replacing the antenna icon when

transmitting. The bar graph above this icon shows 1 bar for low power and 6 bars for high

power.

6.5 MENU

Menu function key used for accessing the menu system. This is normally assigned to the

Menu key (F1).

6.6 MODE

A short cut to the Mode menu. Allows the user to change radio modes, for example

from PMR/LMR to P25, or MPT1327 trunking to P25.

6.7 M

UTE

Provides direct access to the “Mute Adjust” menu screen and allows the user to change the

mute level from that screen. The selected mute level will affect all analogue channels.

6.8 RESET

The reset function is usually assigned to F6, and is used as a cancel function when in a

menu or as a backspace when entering keypad dial-strings.

6.9 SCAN

The scan function activities the Scanning mode, refer to Section 5.5 for details.

6.10 S

CRAMBLER

If an analogue channel is selected, then the scrambler function button can activate a simple

voice inversion scrambler for low security applications. Scramble mode is indicated by the

‘SC” indicator icon.

6.11 T

ALKAROUND

On a repeater channel only, this function button allows the radio to transmit on the base

station’s output channel, so the user can talk directly to other mobiles on the channel, while

the repeater is out of service or out of range.

When the key is pressed again (or the Channel is changed) the mobile’s transmitter channel

reverts to its normal setting.