Retevis RT66 User manual

Shenzhen Retevis Technology Co., Ltd
7/F, 13-C, Zhonghaixin Science & Technology Park, No.12 Ganli 6th Road,
Jihua Street, Longgang District, Shenzhen, China
Web: www.retevis.com
E-mail: [email protected]
Facebook: facebook.com/retevis
US RT66
Two Way Radio
User's Manual

Thank you!
We are grateful that you chose our two way radio.
We believe this Two Way Radio will provide dependable and
reliable communication to personal operating at peak efficiency.
The transceivers incorporate the latest in advanced technology.
As a result, We feel strongly that you will be pleased with the
quality and features of this product!
Before using this Two way radio, please read the manual
which contains important operating instructions for safe
usage, RF Energy Awareness, control information and
operational instructions for compliance with RF Energy
Exposure limits in applicablenational and international
standards, and also read the operational instructions for
safe use.
Product safety and RF Exposure for Two Way Radio:

CONTENT
01
GETTING ACQUAINTED
Battery Indicator
Monitor
Antenna
Channel Selector
Speaker
Power Switch/
Volume Control
TX/RX Indicator
Microphone
Earphone/Data
Cable Jack
Battery Pack
Push to Talk (PTT)
01
02
02
03
03
04
05
05
05
05
05
06
06
06
06
06
07
07
07
07
08
09
10
11
12
GETTING ACQUAINTED
UNPACKING AND CHECKING EQUIPMENT
Packing List
PREPARATION
Li-ion Battery Pack Precautions
Charging the Battery Pack
BASIC OPERATION
Switch Power On/Off
Adjusting the Volume
Selecting a Channel
Transmitting & Receiving
ADVANCED OPERATIONS
Wide/Narrow Bandwidth Selection
Time-Out Timer (TOT)
Battery Save
Channel Number Annunciation
Low Battery Alert
Compandor
Scrambler
CTCSS/DCS
CARE AND CLEANING
TROUBLESHOOTING GUIDE
CTCSS/DCS
CHANNEL AND FREQUENCIES
WARNING

0302
UNPACKING AND CHECKING EQUIPMENT
Packing List
Carefully unpack the transceiver. We recommend that you identify
the items listed in the following table before discarding the packing
material. If any items are missing or have been damaged during
shipment, file a claim with the carrier immediately.
Unit Transceiver
Battery Pack
Desktop Charger
Belt Clip
Hand Strap
User Manual
DESCRIPTION QUANTITY
2
2
2
2
2
1
PREPARATION
Li-ion Battery Pack Precautions
Do not short the battery terminals or dispose of the battery by
fire. Never attempt to remove the casing from the battery pack.
Keep the charging temperature always between 5*and 40*.
Do not use the transceiver while charging the battery pack.
We recommend you switch the transceiver power OFF while
charging is taking place.
Do not recharge the battery pack if it is already fully charged.
Doing so may cause the life of the battery pack to shorten or the
battery pack may be damaged.
Use the battery pack only for its intended purpose. Never use any
charger or battery pack that is damaged.
Do not short-circuit the battery. Accidental short-circuiting can
occur when a metallic object such as a coin, clip, or pen causes
direct connection of the positive (+) and negative (-) terminals
of the battery. This might happen, for example, when you carry
a spare battery pack in your pocket or purse. Short-circuiting the
terminals may damage the battery or the connecting object.

04 05
Charging the Battery Pack
The battery pack is not charged at the factory, please charge it
before use. Initially charging the battery pack after purchase or
extended storage (greater than 2 months) will not bring the battery
pack to its normal operating capacity. After two or three complete
charge and discharge cycles. The full performance of battery will
be achieved.
1. Slide the battery pack or transceiver with a battery pack into the
desktop charger.
2. Make sure the battery pack contacts are in contact with the
charging terminals.
3. The charging LED lights red and charging begins.
4. After charging about 4 hours, when the light turns to green, it
means the battery pack is fully charged.
5. Then you can take off the battery pack or transceiver with the
battery pack and use it.
PREPARATION BASIC OPERATION
Switch Power On/Off
1. TurnOn:turnthe[Power]switchclockwisetoswitchthetransceiver
ON, an alert tone will be heard.
2. Turn Off: turn the [Power] switch counter clockwise to switch
the transceiver OFF.
Adjusting the Volume
Rotate the [Volume] control to adjust the volume. Clockwise
increases the volume and counter clockwise decreases it.
Selecting a Channel
Rotate the [Channel Selector] to choose your desired channel.
Clockwise increases the number and counter clockwise decreases
it. If the channel number annunciation is activated, the radio will
announce the current corresponding channel number. If none
channel has been programmed, it cannot be used. When a non-
programmed channel is selected, the LED indicator lights orange
and an alert tone sounds.
Transmitting & Receiving
1. Press the [PTT] switch and speak into the microphone in your
normal speaking voice, for best sound quality at the receiving
station, hold the microphone approximately 1~2 inches (2.5~
5 cm) from your mouth.
2. Release the [PTT] switch to receive.

06 07
ADVANCED OPERATIONS ADVANCED OPERATIONS
Wide/Narrow Bandwidth Selection
You can select Wide/Narrow bandwidth via programming software,
the default setting is Wide.
Time-Out Timer (TOT)
The Time-Out Timer is used to prevent any caller from using a
channel for an extended period of time (OFF, 15~600 seconds). If
you continuously transmit for a period of time that exceeds the
programmed time, the transceiver will stop transmitting and an
alert tone will sound. To stop the tone, release the PTT switch.
Battery Save
The battery save function decreases the amount of power used
when signal is not being received and no operations are being
performed (no keys are being pressed and no switches are being
turned) for 5 seconds, the battery save function activates.
When a signal is received or an operation is performed, battery
save is disabled. The default setting is ON.
Channel Number Annunciation
Your dealer may have programmed channel number annunciation
on your transceiver. There are 3 kinds of the channel number
annunciation: "Chinese Male Voice, English Male Voice (Default
Setting), None". When you turn the [Channel Selector], the
transceiver sounds the current corresponding channel number.
Low Battery Alert
For extra convenience, if the battery level runs low, the transceiver
will sounds "do do do" at every 5 seconds, to alert the user to
recharge the battery. Please change new battery pack or charge
this battery pack.
Compandor
Activate this function for more clear audio output.
The default setting is OFF.
Scrambler
There are 8 groups of scramblers to select, when activated, any
other party listening on your channel is prevented from
eavesdroppimg your conversation. The default setting is OFF.
CTCSS/DCS
There are 50 CTCSS 105 DCS for selection, you can also define
your own CTCSS/DCS, or activate the DCS hopping feature, the
CTCSS/DCS is a sub-audible tone/code which allows you to
ignore (not hear) calls from other parties who are using the same
channel, when a channel is set up with a CTCSS/DCS, squelch will
only open when a call containing a matching tone or code is received.
Meanwhile, signals that you transmit will only be heard by parties
whose CTCSS/DCS signaling matches your transceiver.

08 09
To guarantee optimal performance as well as a long service lift
of your radio, please follow the tips below.
- Keep your radio dry. Rain, moisture and liquid or water may
contain mineral substance that can corrode the electronic circuit.
- Take out the battery when the radio is wet, install the battery
pack when it is completely dry.
- Keep away the radio from hot place. High temperature may
cause electrical instrument working life shorten, battery pack
damaged and plastic component deformation or dissolved.
- Do not throw, knock or shock the radio. Use it rudely may damage
internal circuit board and accurate structure.
- Do not use any strong chemicals, cleaner of detergent to clean
the radio.
- Do not paint the radio. Painting may block the demountable
component to influence normal operation.
- Do not hold the radio by its antenna or headset cable directly.
- Use supplied or approved antenna when change antenna.
Unapproved antenna, modified accessories may damage the
radio and violate the relevant rules.
- Attach the accessory jack cover when the radio is not in use.
- Make a back-up copy (like frequencies and channels.) before you
take your radio to service center.
Note : Every tip above are all applicable for your radio, battery pack,
desktop charger and accessories. Consult your dealer or take your
radio to nearest service center if any parts cannot work normally.
TROUBLESHOOTING GUIDECARE AND CLEANING
SOLUTION
No power.
Battery power
dies shortly after
charging.
Cannot talk to or
hear other members
in your group.
Other voices (besid-
es group members)
are present on the
channel.
PROBLEM
The battery pack may be dead.
Recharge or replace the battery pack.
The battery pack may not be installed
correctly. Remove the battery pack
and install it again.
The battery pack life is finished.
Replace the battery pack with a new
one.
Make sure you are using the same
frequency and CTCSS/DCS as the
other members in your group.
Other group members may be too far
away. Make sure you are within range
of the other transceivers.
Change the CTCSS/DCS setting. Be
sure to change the tone on all trans-
ceiver in your group.

10 11
1 - 67.0 11 - 94.8 21 - 131.8 31 - 171.3 41 - 203.5
2 - 69.3 12 - 97.4 22 - 136.5 32 - 173.8 42 - 206.5
3 - 71.9 13 - 100.0 23 - 141.3 33 - 177.3 43 - 210.7
4 - 74.4 14 - 103.5 24 - 146.2 34 - 179.9 44 - 218.1
5 - 77.0 15 - 107.2 25 - 151.4 35 - 183.5 45 - 225.7
6 - 79.7 16 - 110.9 26 - 156.7 36 - 186.2 46 - 229.1
7 - 82.5 17 - 114.8 27 - 159.8 37 - 189.9 47 - 233.6
8 - 85.4 18 - 118.8 28 - 162.2 38 - 192.8 48 - 241.8
9 - 88.5 19 - 123.0 29 - 165.5 39 - 196.6 49 - 250.3
10 - 91.5 20 - 127.3 30 - 167.9 40 - 199.5 50 - 254.1
DCS Standard Group Number
CTCSS Standard Frequency Table
CTCSS/DCS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CHANNEL
CHANNEL AND FREQUENCIES
FREQUENCY CTCSS/DCS POWER
462.5625
462.5875
462.6125
462.6375
462.6625
462.6250
462.7250
462.6875
462.7125
462.5500
462.5750
462.6000
462.6500
462.6750
462.7000
462.7250
67.0
118.8
127.3
131.8
136.5
127.3
136.5
141.3
146.2
123.0
D7431
D3321
D2431
D606N
D731I
D462I
High
High
High
High
High
High
High
High
High
High
High
High
High
High
High
High
023
025
026
031
032
036
043
047
051
053
054
065
071
072
073
074
114
115
116
122
125
131
132
134
143
145
152
155
156
162
165
172
174
205
212
223
225
226
243
244
245
246
251
252
255
261
263
265
266
271
274
306
311
315
325
331
332
343
346
351
356
364
365
371
411
412
413
423
431
432
445
446
452
454
455
462
464
465
466
503
506
516
523
526
532
546
565
606
612
624
627
631
632
645
654
662
664
703
712
723
731
732
734
743
754

12 13
WARNING
RF ENERGY EXPOSURE AND PRODUCT SAFETY GUIDE FOR
PORTABLE TWO-WAY RADIOS
Before using this radio, read this guide which contains
important operating instructions for safe usage and RF
energy awareness and control for compliance with
applicable standards and regulations.
This two-way radio uses electromagnetic energy in the radio
frequency (RF) spectrum to provide communications between
two or more users over a distance. RF energy, which when used
improperly, can cause biological damage.
All Retevis two-way radios are designed, manufactured, and tested
to ensure they meet government-established RF exposure levels.
In addition, manufacturers also recommend specific operating
instructions to users of two-way radios. These instructions are
important because they inform users about RF energy exposure
and provide simple procedures on how to control it.
Please refer to the following websites for more information on what
RF energy exposure is and how to control your exposure to assure
compliance with established RF exposure limits:
http://www.who.int/en/
Local Government Regulations
When two-way radios are used as a consequence of employment, the
Local Government Regulations requires users to be fully aware of
and able to control their exposure to meet occupational requirements.
Exposure awareness can be facilitated by the use of a product label
directing users to specific user awareness information. Your Retevis
two-way radio has a RF Exposure Product Label. Also, your Retevis
user manual, or separate safety booklet includes information and
operating instructions required to control your RF exposure and to
satisfy compliance requirements.
Radio License
Governments keep the radios in classification, business two-way
radios operate on radio frequencies that are regulated by the local
radio management departments (FCC).To transmit on these
frequencies, you are required to have a license issued by them.
The detailed classification and the use of your two radios, please
contact the local government radio management departments.
Use of this radio outside the country where it was intended to be
distributed is subject to government regulations and may be prohibited.
Unauthorized modification and adjustment
Changes or modifications not expressly approved by the party
responsible for compliance may void the user's authority granted
by the local government radio management departments to operate
this radio and should not be made. To comply with the corresponding
requirements, transmitter adjustments should be made only by or
under the supervision of a person certified as technically qualified
to perform transmitter maintenance and repairs in the private land
mobile and fixed services as certified by an organization representative
of the user of those services.
WARNING

14 15
WARNING WARNING
RF Exposure Information
• DO NOT operate the radio without a proper antenna attached, as
this may damage the radio and may also cause you to exceed RF
exposure limits. A proper antenna is the antenna supplied with
this radio by the manufacturer or an antenna specifically authorized
by the manufacturer for use with this radio, and the antenna gain
shall not exceed the specified gain by the manufacturer declared.
• DO NOT transmit for more than 50% of total radio use time,
more than 50% of the time can cause RF exposure compliance
requirements to be exceeded.
• During transmissions, your radio generates RF energy that can
possibly cause interference with other devices or systems. To
avoid such interference, turn off the radio in areas where signs
are posted to do so.
• DO NOT operate the transmitter in areas that are sensitive to
electromagnetic radiation such as hospitals, aircraft, and blasting
sites.
• Portable Device, this transmitter may operate with the antenna
(s) documented in this filing in Push-to-Talk and body-worn
configurations. RF exposure compliance is limited to the specific
belt-clip and accessory configurations as documented in this
filing and the separation distance between user and the device
or its antenna shall be at least 2.5 cm.
• Mobile Device, during operation, the separation distance between
user and the antenna subjects to actual regulations, this separation
Replacement of any transmitter component (crystal, semiconductor,
etc.) not authorized by the local government radio management
departments equipment authorization for this radio could violate
the rules.
FCC Requirements:
This device complies with part 15 of the FCC Rules. Operation is
subject to the condition that this device does not cause harmful
interference.
(Licensed radios are applicable);
This device complies with part 15 of the FCC Rules. Operation is
subject to the following two conditions: (Other devices are applicable)
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including
interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.

16 17
WARNING WARNING
distance will ensure that there is sufficient distance from a properly
installed externally-mounted antenna to satisfy the RF exposure
requirements.
• Occupational/Controlled Radio, this radio is designed for and
classified as "Occupational/Controlled Use Only", meaning it must
be used only during the course of employment by individuals
aware of the hazards, and the ways to minimize such hazards;
NOT intended for use in a General population/uncontrolled
environment.
• General population/uncontrolled Radio, this radio is designed for
and classified as "General population/uncontrolled Use".
RF Exposure Compliance and Control Guidelines and
Operating Instructions
To control your exposure and ensure compliance with the
occupational/controlled environment exposure limits, always
adhere to the following procedures.
Guidelines:
• User awareness instructions should accompany the device when
transferred to other users.
• Do not use this device if the operational requirements described
herein are not met.
Operating Instructions:
• Transmit no more than the rated duty factor of 50% of the time.
To Transmit (Talk), push the Push to Talk (PTT) button. To receive
calls (listen), release the PTT button. Transmitting 50% of the time,
or less, is important because the radio generates measurable RF
energy exposure only when transmitting in terms of measuring
for standards compliance.
• Transmit only when people outside the vehicle are at least the
recommended minimum lateral distance away from a properly
installed according to installation instructions, externally
mounted antenna.
• When operating in front of the face, worn on the body, always
place the radio in a Retevis approved clip, holder, holster, case,
or body harness for this product. Using approved body-worn
accessories is important because the use of Non-Retevis
approved accessories may result in exposure levels, which
exceed the IEEE/ICNIRP RF exposure limits.
Hand-held Mode
• Hold the radio in a vertical position with the microphone
(and other parts of the radio including the antenna) at
least 2.5 cm (one inch) away from the nose or lips. The
antenna should be kept away from the eyes. Keeping the radio
at a proper distance is important as RF exposure decreases with
increasing distance from the antenna.
Phone Mode
• When placing or receiving a phone call, hold your radio product
as you would a wireless telephone. Speak directly into the
microphone.

18 19
WARNING WARNING
Electromagnetic Interference/Compatibility
NOTE: Nearlyeveryelectronicdeviceissusceptibletoelectromagnetic
interference (EMI) if inadequately shielded, designed, or otherwise
configured for electromagnetic compatibility.
Avoid Choking Hazard
Small Parts. Not for children under 12 years.
Turn off your radio power in the following conditions:
• Turn off your radio before removing (installing) a battery
or accessory or when charging battery.
• Turn off your radio when you are in a potentially hazardous
environments: Near electrical blasting caps, in a blasting
area, in explosive atmospheres (inflammable gas, dust
particles, metallic powders, grain powders, etc.).
• Turn off your radio while taking on fuel or while parked
at gasoline service stations.
To avoid electromagnetic interference and/or compatibility
conflicts.
• Turn off your radio in any facility where posted notices
instruct you to do so, hospitals or health care facilities
(Pacemakers, Hearing Aids and Other Medical Devices) may
be using equipment that is sensitive to external RF energy.
• Turn off your radio when on board an aircraft. Any use
of a radio must be in accordance with applicable
regulations per airline crew instructions.
WARNING
Protect your hearing:
• Use the lowest volume necessary to do your job.
• Turn up the volume only if you are in noisy surroundings.
• Turn down the volume before adding headset or earpiece.
• Limit the amount of time you use headsets or earpieces
at high volume.
• When using the radio without a headset or earpiece, do
not place the radio's speaker directly against your ear.
• Use careful with the earphone maybe possible excessive
sound pressure from earphones and headphones can
cause hearing loss
Note: Exposure to loud noises from any source for extended periods
of time may temporarily or permanently affect your hearing. The
louder the radio's volume, the less time is required before your
hearing could be affected. Hearing damage from loud
noise is sometimes undetectable at first and can have
a cumulative effect.
Avoid Burns
WARNING
Antennas
• Do not use any portable radio that has a damaged
antenna. If a damaged antenna comes into contact with
the skin when the radio is in use, a minor burn can result.
Batteries (If appropriate)
• When the conductive material such as jewelry, keys or
chains touch exposed terminals of the batteries, may
WARNING

20 21
WARNING WARNING
complete an electrical circuit (short circuit the battery)
and become hot to cause bodily injury such as burns.
Exercise care in handling any battery, particularly when
placing it inside a pocket, purse or other container with
metal objects.
Long transmission
• When the transceiver is used for long transmissions,
the radiator and chassis will become hot.
WARNING
Safety Operation
Forbid
• Do not use charger outdoors or in moist environments,
use only in dry locations/conditions.
• Do not disassemble the charger, that may result in risk
of electrical shock or fire.
• Do not operate the charger if it has been broken or
damaged in any way.
• Do not place a portable radio in the area over an air bag
or in the air bag deployment area. The radio may be
propelled with great force and cause serious injury to
occupants of the vehicle when the air bag inflates.
To reduce risk
• Pull by the plug rather than the cord when disconnecting
the charger.
• Unplug the charger from the AC outlet before attempting
any maintenance or cleaning.
Approved Accessories
• This radio meets the RF exposure guidelines when used
with the Retevis accessories supplied or designated for
the product. Use of other accessories may not ensure
compliance with the RF exposure guidelines and may
violate regulations.
• For a list of Retevis-approved accessories for your radio
model, visit the following website:
http://www.Retevis.com
• Contact Retevis for assistance regarding repairs and
service.
• The adapter shall be installed near the equipment and
shall be easily accessible.
WARNING

22
Warranty Card
Product model: Date of purchase:
Serial Number:
Seller: contact number:
Username: contact number:
Address: Zip code:
Warranty description:
1. The warranty card is saved by the customer as the
warranty certificate, and the loss is not compensated.
2. This card must be stamped and dated for sale to take
effect.
3. This card must not be altered. Please confirm that the
warranty card serial number matches the purchase
machine number, otherwise it will be invalid.
4. The warranty period is one year. Chargers, batteries,
headphones, antennas and feeders are consumables,
not covered by warranty.
5. Users can choose the following ways to get repair service:
a. At the original purchase office.
b. Our company is in the local special maintenance point.