Tyco Electronics P5200 사용자 설명서

26 

The function of the button and knob controls will vary depending on the mode of operation. The primary 
functions of the button and knob controls when in the OpenSky mode of operation are listed in the 
following paragraphs.  

Applies power to the radio and adjusts audio volume. 

Rotating the control clockwise applies power to the radio. A single alert tone (if 
enabled through programming) indicates the radio is operational. 

Rotating the control clockwise increases the volume level. While adjusting the 
volume, the display will momentarily indicate the volume level (i.e.

 

VOL=40). The 

volume range is from a minimum programmed level of zero

  (

displayed as

 

MUTE

 

in 

the display) up to 40, which is the loudest level.

 

Used to select voice groups when operating within an OpenSky system. This is a 16-
position rotary knob.  

A mechanical stop, which can limit the number of positions accessed, is shipped 
with the radio but must be installed. To install the mechanical stop, remove the 
channel knob, loosen the set screw on the channel knob metal base (using a 1.27mm 
hex wrench), and remove the channel knob metal base. Replace the 16 channel ring 
with the channel stop ring located at the desired channel. Re-install the channel knob 
metal base, tighten the set screw, and re-install the channel knob. 

Press to declare an emergency.  

The Push-To-Talk button (

) must be pressed before voice transmission 

begins. 

Scrolls UP or DOWN thru available items within a sub-menu (available talk groups, 
pre-programmed speed dial numbers, canned alert messages, etc.).