PAGE 20
FUNCTION-
Using The UHF Radio
TRANSMIT AND RECEIVE PROCEDURE
Your UHF radio contains a transmitter and receiver. To control your exposure and ensure
compliance with the general population/uncontrolled environment exposure limits, always adhere
to the following procedure:
•
Transmit no more than 50% of the time.
•
To receive calls, release the
“(PTT) BUTTON”
on the microphone handpiece.
•
To transmit (talk), press the
“(PTT) BUTTON”
on the microphone handpiece.
When powered on and not transmitting, the radio is always in receive mode. When a signal is
received the LCD will display the signal strength, and then you can hear if the other party is calling.
NOTE:
You may not receive the call if you set a high “squelch off” level of the transceiver.
If current channel has been programmed with signaling, you can only hear the call from the same
signaling, other calls can not be heard. For others to receive your transmission, they must be on the
same channel as you and if CTCSS or DCS is enabled, the same sub channel must also be selected.
Be sure that the channel you want to use is not in busy state through monitoring for a while by
pressing the programmed Squelch off
“(PF1) BUTTON”
. Under these conditions, press the
“(PTT)
BUTTON”
and speak into microphone. Please keep around 2.5-5cm distance between microphone
and your lip. And please speak in normal tone to make the receiver obtain best tone quality.
NOTE: Holding [PTT], signal strength shows on the screen when the transceiver is transmitting.
Release the PTT to receive.
NOTE: Transmitting 50% of the time, or less, is important because the radio generates
measurable RF energy exposure only when transmitting (in terms of measuring standards
compliance).
NOTE:
Do not transmit between two radios that are less than 1.5m apart, otherwise you may
experience interference.
NOTE:
The UHF radio is simplex “one way at a time”. While you are speaking, you can not
receive a transmission.
NOTE:
T
he UHF radio is an open licence band. Always identify yourself when transmitting.
TRANSMITTING RANGE
The transmitting range will depend on the antenna, terrain, surroundings and environment, it will
be affected by obstructions such as hills, buildings and foliage. The use of duplex mode will
extend the transmission range in areas where a repeater station is present.
Содержание RR50A
Страница 1: ...RIDGEACCESSORIES PAGE 1 PRO HANDHELD 52 PLU 564552 ...
Страница 24: ...PAGE 24 UHF CHANNELS AND FREQUENCIES UHF CHANNEL FREQUENCY TABLE ...
Страница 25: ...PAGE 25 UHF CHANNELS AND FREQUENCIES continued CTCSS TONE TABLE ...
Страница 26: ...PAGE 26 UHF CHANNELS AND FREQUENCIES continued DCS CODE TABLE ...
Страница 27: ...PAGE 27 UHF CHANNELS AND FREQUENCIES continued DCS CODE TABLE continued ...
