Retevis Ailunce HS4 User Manual page 8

16.ROGER BEEP OR BEEP FUNCTION
17. NB/ANL or LOCK
18.DW or LCD OFF
19.SCAN OR Scan.list
20. +10KHZ or HI-CUT
21.SWR OR TOT
(1) RB
Press the "RB" key to enable the "ROGER BEEP" function with the "RB" icon appearing on
the LCD. Press the key repeatedly to switch on/off the function. When the RB function is
enabled, the radio will automatically transmit the audio signal at the end of your
transmission. The listener can note easily that your transmission is over through the signal.
(2) FUNC+RB
Press the FUNC+RB key to realize the BP Function. It is a prompting function with the "BP"
icon appearing on the LCD. The speaker would emit a BEEP for prompting when pressing
any key. Press the FUNC+RB key repeatedly to switch on/off the function.
(1) Press the NB/ANL key to enable the NB/ANL function with the "NB/ANL" icon appearing
on the LCD. Press the key repeatedly to switch on/ off the function. Noise Blanker/Auto-
matic Noise Limiter. These filters allow reducing background noises and some reception
interference.
(2) FUNC+NB/ANL
Press the FUNC+NB/ANL key to realize the Keyboard Lock function. When this function is
enabled, all keys are invalid except PTT, BAND SWITCH, and MODE SWITCH. When pressing
any key except PTT, BAND SWITCH, and MODE SWITCH, the LOCK icon will display on the
LCD. These situations indicate that the keyboard has been locked. Press the FUNC+NB/ANL
key repeatedly to switch on/off the function.
(1) The DW (dual watch) function allows automatic alternate monitoring of two channels.
Refer to the following procedures to enable this function.
To enable the DW function, firstly rotate the SQ control clockwise until the background
noise is cut out. Select the first channel to be monitored by using the CHANNEL
SELECTOR knob or the channel selector keys on the microphone. Press the DW key and
the DW icon will flash on the LCD display. Secondly, follow the above procedures to select
the second channel to be monitored. Finally, press the DW key again and the two
monitoring channels will be alternately indicated on the LCD. Radio will automatically start
monitoring (scanning) the two channels. When a signal is detected on one of the channels,
scanning stops and it is possible to listen to the communications on that channel. Press
PTT to transmit on this channel. If there is no transmission or detected signal on that
channel within 5 seconds (time to resume scanning can be programmed by PC software),
the radio will resume scanning. When the DW function is enabled, the DW icon appears on
the LCD. To exit the DW function, press the DW key or the PTT key. The scan Type above is
the SQ mode under SCA Selection in the Function Menu. If TI mode is selected and the
valid signal is detected, the radio will still start scanning when it is time to resume
scanning, whether there is a signal or not in the current channel. FUNC+DW
When this function is enabled, the LCD display will be switched OFF (LCD OFF).
Repeat this operation to switch ON/ OFF the function.
(1) SCAN Automatic Scanning of busy channels.
Press the SCAN key to enable the SCAN function. Before enabling the SCAN function,
firstly rotate the SQ control clockwise till the background noise is cut out. Then press the
SCAN key, the radio will automatically scan all channels continuously in the scan list and
the SC icon will appear on the LCD.
When a signal is detected on a channel, scanning stops on this channel. You can receive
the call, and can transmit it on this channel by pressing the PTT key. If there is no
transmission or detected signal on that channel within 5 seconds (time to resume
scanning can be programmed by PC software), the radio will start scanning again. To exit
the SCAN function, press the SCAN key or the PTT key. The Scan Type above is the SQ
mode under SCA Selection in the Function Menu. If TI mode is selected and the valid
signal is detected, the radio will still start scanning when it is time to resume scanning,
whether there is a signal or not in the current channel.
(2) FUNC+SCAN
SC. LIST (Scan ADD or Delete).
Press the FUNC+SCAN key to delete the current channel from the scan list. The first digit
on the LCD would display. When Scan function is enabled, the radio will skip the deleted
channel. Repeat this operation to Add or Delete channels from the scan list.
(1) +10KHZ Press this key to shift frequency up by 10khz. When pressing this key, 10KHZ
appears on the LCD, and frequency of channels is shifted up by 10 KHZ. Repeat this
operation to switch ON/OFF this function.
(2) FUNC+ +10KHZ
Press the FUNC+10KHZ key to realize the HI-CUT function. Once this function is enabled,
the radio would cut out high frequency interference. Its use depends on reception
conditions. When this function is enabled, "HI-CUT" will appear on the LCD. Repeat this
operation to switch ON/OFF the function.
(1) SWR
When pressing this key, the "SWR" icon will appear on the LCD. When transmitting, SRF bars
indicate SWR value other than PA or PWR value. One bar displayed on the LCD indicates
that the SWR value is 1.0. Each additional bar indicates every 0.1 added value. Repeat this
operation to switch ON/OFF the function.
(2) FUNC+ SWR
When pressing this key, TOT ON or TOT OFF will display on the LCD for 2 seconds. Repeat
this operation to switch ON/OFF the function. When ON appears on the LCD, users can
press the PTT to transmit. Then, the radio will time the transmitting duration. Once the
duration is beyond the set TOT time (programmable), the radio will emits a voice prompt to
stop transmitting and back to the receiving state automatically. This function aims to protect
the radio against power tube damage from super heating caused by long transmission.
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