Service manual

ManualsBrandsBK Radio ManualsRadioGPH FlexoMode

Operation GPH Series VHF Radio

Page 3-2 

ALPHANUMERIC DISPLAY

    

7-SEGMENT DISPLAY

PRG TX

SCN ID CG

FIGURE 3-1 Liquid Crystal Displays

3.2 BASIC OPERATION

Operating procedures are basically the same for all three display types (7-Segment, Alphanumeric, and

no display), with some obvious differences. For example, a radio with no display or keypad has no keys to

press. The actual display on the radio may appear different from the illustrations, depending on the

features installed and programmed in the radio.

3.2.1 Receive

Turn unit on by turning the Volume knob clockwise past the OFF detent. The

radio will beep, indicating that it has passed its self test and is operational.

Select a channel by turning the 16-position Channel Selector knob.

Adjust squelch and volume by turning the squelch knob clockwise until you hear

noise.

Set the volume to a comfortable level. Then turn the squelch knob

counterclockwise until the noise stops. This is called the threshold squelch

setting.

Turning the squelch knob fully counterclockwise past the detent places the

receiver in Code Guard™ mode. A message will be heard only when the proper

Code Guard value is received.

3.2.2 Transmit

Monitor the Channel before transmitting. If in Code Guard Mode, turn the

Monitor-Squelch knob clockwise off the detent position.

Press and hold the PTT (Push To Talk) switch. If a Speaker/Microphone is

installed, use the Speaker/Microphone's PTT. When the transmitter is on, the red

Transmit Indicator glows and the TX annunciator on the LCD appears.

Talk in a normal voice with the microphone two to three inches from your mouth.

Release the PTT switch to stop transmitting.

If the transmit indicator does not glow when you press the PTT switch, the

battery pack may need to be charged. If so, the display will indicate

LOBATT,

and the yellow low-battery indicator will flash. If the transmit indicator does not

glow and a tone sounds, you are on a receive-only channel or the channel is

busy (if busy channel lockout is enabled). Select an authorized transmit channel.

If the length of the message exceeds the preset time-out timer setting, the

transmitter automatically shuts off and a tone sounds. To continue transmission,

release the PTT switch, and then press it again and continue talking.

* Code Guard™ is a trademark of BK Radio.

CG- OFF-

SQ VOL

161

ABC

CG- OFF-

SQ VOL

161

ABC