Intek HR-5500 Owner's Manual page 12

24. EXT SP or PA SP
EXT SP
Accept 4 to 8 ohm, 4 watt external speaker to be connected. When external
speaker is connected to this jack, the built-in speaker is automatically
disconnected.
PA SP
It is used to connect a PA speaker. Before operating PA, you must firstly
connect a PA speaker to this jack.
25. ATTENNA
Accept 50 ohm coaxial cable with a type PL-259 plug to be connected.
26. CW KEY
This jack is for Morse code operation; to operate, connect a CW key to this
jack and place the MODE switch in the CW position (LCD display icon "CW")
<MICROPHONE>
<PUSH-TO-TALK>
The receiver and transmitter are controlled by the Push-To-Talk switch on
the microphone.
Press the switch to transmit and then release it to receive. When
transmitting, hold the microphone two inches from the mouth and speak
clearly in a normal "voice". The radios come complete with low impedance
(150 ohm) dynamic microphone.
Controls and Operation - Function Menu Setup
1. PTT
Transmitting key, Press to speak and release to receive a message.
2. UP/DN
These key allow increasing or decreasing a channel number.
3. AQ
(1) When the radio is receiving a call, press this key to enable ASQ
(Automatic Squelch Control) function. Then, "AQ" would appear on the LCD.
Press this key repeatedly to switch on/off the function.
(2) When the radio is receiving a call, press and hold this key for over 2
seconds to enable signal monitoring function. At the moment, whether the
radio receive signal or not, the radio would detect current channel to check
whether current channel has weak signal.Release AQ key to exit this
function.
(3) Pressing PTT and AQ key at the same time, the radio would emit a
single-tone. This tone is to help and remind two sides of communication to
adjust frequency. The frequency of this tone is adjustable.
(4) ASQ (Automatic Squelch Control)
ASQ control setting.It has same function with AQ button on the microphone.
4. MICROPHONE
The radios come complete with low-impedance (150 ohm) dynamic
microphone.
FUNCTION MENU SETUP
The initial functions and parameter can be changed via the following settings
and operations. Please read the following instruction before making any
desired amendments.
To enter Function Menu: under ON state, press and hold FUNC key for more
than 2 seconds, and then release the FUNC key to enter into the Function
Menu Setup. Under this condition, press FUNC key to select different
functions menu, CHANNEL SELECTOR Switches to change the data of
Function Menu.
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