Retevis RT33 User manual

US
RT33
Walkie Talkie
Operating Instruction
MENU
PWR
SCAN
MON
MENU
PWR
SCAN
MON
CHCH

1
Before using this product, read the operating
instructions for safe use contained in the
Product Safety and RF Exposure booklet
provided with you radio.
CAUTION
1
Specification
Antenna
Flashlight
Down Button/
Monitor Button
Speaker
Push-To-Talk Liquid Crystal
Display
Flashlight Button
Up Button/
Scan Button
Power/Menu
Button
Microphone
USB Charging
Port
MENU
PWR
SCAN
MON
Channel Number
Subaudible tone(CTCSS/DCS)
Battery Level
Transmitting
Receiving
Dual Channel Monitoring
Voice-operated exchange
Key tone
TX
RX
DCM
VOX
Packing List
Walkie-talkie
Belt Clip
Manual
Quantity
2
2
1
Product number
Frequency range
Channel number
Channel spacing
Working voltage
Frequency stability
Operating temperature range
The antenna impedance
Overall dimensions
Weight
TECHNICAL PARAMETERS
RT33
462~467MHz
22
12.5KHz
3.6-4.5V
±2.5ppm
-20℃~50℃
50Ω
125*46*26mm
67.5g
Radio Parts and Controls
CH

2
Frequency Range(USA)
Rf power
Modulation method
Noise and harmonic
Residual Radiation
Modulation distortion
Maximum deviation
0.5W
11kΦF3E
<-40dB
≤-35dB
≤7%
≤±5KHz
TRANSMITER
The sensitivity
Modulation receiver bandwidth
Adjacent selective
Intermodulation interference resistance
Spurious response inhibition
Audio output power
Audio distortion
≤0.2uV
±5KHz
≥40dB
≥35dB
≥70dB
≥300mW
≤8%
RECEIVER
Channel
1
2
3
4
5
6
7
8
9
10
11
Frequency
462.5625
462.5875
462.6125
462.6375
462.6625
462.6875
462.7125
467.5625
467.5875
467.6125
467.6375
Channel
12
13
14
15
16
17
18
19
20
21
22
Frequency
467.6625
467.6875
467.7125
462.5500
462.5750
462.6000
462.6250
462.6500
462.6750
462.7000
462.7250
1. POWER ON/OFF
Press and hold POWER key for three seconds to turn
on your radio. The radio will bleep at the moment that
the screen is light.
To turn it off , Press and hold POWER key for three
seconds.
2. Setting volume
To set volume, adjusting UP/DOWN button in standby
mode(Level 1 is minimum sound level while Level 8
maximum).
3. Automatic scan
Pressing and holding UP button for three seconds
allows to activate automatic scan. To cancel, simply
press Menu/Power button once again.
4. Monitoring
Monitor button can be pressed for three seconds to
activate the function of monitoring. To stop monitoring,
simply press Menu/Power button once again.
5. Changing channel
Every device contains its corresponding legitimate
channels in a country. Please make sure that two
radios operate on the same channel in order to talk
with each other.
To change a channel, press Menu/Power button to
choose a desired channel and then press PTT button
to confirm it.
This product provides one-way communication. In
other word, it cannot receive messages when
transmitting.

3
This equipment operates on public frequencies.
Note: Please check that current channel is available
before any transmission.
6. CTCSS/DCS
Pressing MENU key twice and then UP or DOWN key
allows to choose a desired CTCSS/DCS code, which
reduces the chance of using the same channel.
7. VOX
VOX allows user to make transmission without
pressing PTT button. Your radios will send out the
voice when you are speaking into the microphone.
There are three levels of VOX. Press Menu button
three times until the VOX icon shows on the screen
and OF icon blinks. Press UP/DOWN key to set up
sensitivity level(Level 1-3) and then press PTT to
confirm your change. The default is the setting that
VOX function is off.
8. Call tone
The option diversifies users’ call tones. Press Menu
button four times until CALL icon appears on the
display and current number flickers. To set, press
UP/DOWN button to select one desired from 10 kinds
of call tones and then press PTT to confirm the
change. Call tone is set to 01 by default. In order not to
inconvenience each other, a user and his/her
companion can choose one from 10 tones contained in
the radio. Quickly press PTT to send out the call tone
so that receiver get the call from the sender only when
two sides are on the same channel.
9. Timeout timer (TOT)
When the radio is set TOT to 30/60 seconds, the radio
will cease to make transmission after 30/60 seconds.
Press Menu button five times until 60 TO appears on
the display. Then press UP/DOWN button to select 60
seconds, 30 seconds or OF. Press PTT to confirm the
change of setting.
10. Roger beep
Roger beep means the end of transmission, which
means the transmitter finishes talking. The radio
sends out the tone when PTT is released.
Press Menu button six times until ON RO appears on
screen. Press UP/DOWN button to select the setting
ON or OFF.
11. Keypad tone
Pressing Menu button six times is an option for key
tone. Pressing UP or DOWN button enables or
disables current keypad tone.
12. Dual Channel Monitoring(DCM)
The function of DCM allows a user to monitor two
channels. With the radio on, two channel blink in the
display. DCM OF appears in the display after Menu
button is pressed for eight times. Press UP or DOWN
button to select ON or OF and then press PTT to
confirm the setting.
13. Memory function
Due to memory function, there is no need to reset
channel when radio or power is off.

4
14. Factory Reset
When holding Menu/Power button, remove a battery
and then release the button.
The Stylized RETEVIS logo is the registered trademark
of Shenzhen Retevis Technology Co., Ltd，which is
used under license. All other trademarks are the
property of their respective owners.
2017 Shenzhen Retevis Technology Co., Ltd. All rights
reserved.
Remarks:
1.This guarantee card should be kept by the user, no
replacement if lost.
2.Most new products carry a two-year manufacturer’s
warranty from the date of purchase. Further details,
please read at http://www.retevis.com/after-sale/
3.The user can get warranty and after-sales service as
below:
● Contact the seller where you buy the product.
● Products Repaired by Our Local Repair Center
4.For warranty service, you will need to provide receipt
from the actual seller for verification
removed.
Exclusions from Warranty Coverage:
1.To any product damaged by accident.
2.In the event of misuse or abuse of the product or as
a result of unauthorized alterations or repairs.
3.If the serial number has been altered, defaced, or
removed.
Model Number:
Serial Number:
Purchasing Date:
Dealer:
Telephone:
User’s Name:
Telephone:
Country:
Address:
Post Code:
Email:
Guarantee