Retevis RB27 User Manual page 14

4> Press [MENU] key to confirm;
5> Press [PTT] or [A/B] key to exit the menu mode.
6.3.7 Dual Watch function (TDR) - Menu 07
This function is a dual-channel monitor scan, which can monitor the A and B segments in the normal mode. If a
signal is received on the monitoring channel, the scan stays on this channel. The steps for setting the
dual-frequency waiting function are as follows:
1> Press [MENU] key to enter the main menu, press [+UP]/[-DOWN] key to enter the MENU 07.
2> Press [MENU] key again to enter the TDR menu;
3> Press [+UP]/[-DOWN]key to select the dual-frequency wait switch, and the selection range is ON/OFF;
Note: OFF-turn off the dual watch function; ON-turn on the dual watch function.
Turn on the dual watch function; the screen will display the 'S' icon.
4> Press [MENU] key to confirm;
5> Press [PTT] or [A/B] key to exit the menu mode.
6.3.8 Power save (SAVE) - MENU 08
To save battery power, this function can turn off the transceiver when no signal is received.
1> Press [MENU] key to enter the main menu, press [+UP]/[-DOWN] key to enter the MENU 08.
2> Press [MENU] key again to enter the SAVE menu;
3> Press [+UP]/[-DOWN] key to select the power saving mode, and the selection range is ON/OFF;
Note: ON-turn on the power saving mode; OFF-turn off the power saving mode.
4> Press [MENU] key to confirm;
5> Press [PTT] or [A/B] key to exit the menu and return to normal operation mode.
6.3.9 Time out Timer (TOT) - MENU 09
The TOT function is used to prevent a too long transmission. This function temporarily blocks transmissions if the
radio has been used beyond the maxi- mum time permitted. Once reached the preset timer, the radio will be
forced in reception mode. The transmission time can be set in 6 levels with 30 seconds each (between 30 and 180
seconds). The setting steps are as follows:
1> Press [MENU] key to enter the main menu, press [+UP]/[-DOWN] key to enter the MENU 09.
2> Press [MENU] key again to enter the TOT menu;
3> Press [+UP] / [-DOWN] key to select the transmission time limit, the selection range is
OFF/30S/60S/90S/120S/150S/180S;
4> Press [MENU] key to confirm;
5> Press [PTT] or [A/B] key to exit the menu mode.
6.3.10 Busy channel lockout (BCLO) - MENU 10
When this function is active, if you select a busy channel and press the PTT, the transceiver will not transmit.
1> Press [MENU] key to enter the main menu, press the [+UP]/[-DOWN] key to enter the MENU 10.
2> Press [MENU] key again to enter the BCLO menu;
3> Press [+UP]/[-DOWN] key to select the switch and select the range ON/OFF;
4> Press [MENU] key to confirm;
5> Press [PTT] or [A/B] key to exit the menu mode.
6.3.11 Call Tone Select (RING)- MENU 11
This setting will allow you to transmit a unique Call Tone alert to identify your radio when you transmit messages.
You can select from one of 10 different Call Tone signals. To Set Call Tone:
1> Press [MENU] key to enter the main menu, press [+UP]/[-DOWN] key to enter the MENU 11.
2> Press [MENU] key again to enter the RING menu;
3> Press the [+UP]/[-DOWN] key to select a different Call Tone. An example of each call tone will sound for 1.5
seconds.
Note: OFF-turn off the call reminder tone; during the selection of 1-10, you can listen to the call tone.
Before you initiate a voice intercom, you can press the [CALL] key to remind the call.
4> Press [MENU] again to confirm;
5> Press [PTT] or [A/B] key to exit the menu and return to normal operation mode.
6.3.12 VOICE Selection (VOICE) - MENU 12
Your RB27 radio has voice prompt function for channel and function operation, you can choose to switch voice
function or prompt language type. The setting steps are as follows:
1> Press [MENU] key to enter the main menu, and press [+UP]/[-DOWN] key to enter the MENU 12.
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