KAR-TECH MCT247 User manual

MCT247
2.4GHz MODULAR TRANSCEIVER
OEM INSTALLATION AND OPERATION MANUAL
NOTE: THIS MODULE IS LIMITED TO OEM INSTALLATION ONLY
July 27, 2020
HK/TH

MCT247 TRANSCEIVER
1
INDEX
DESCRIPTION ........................................................................... 2
OPERATION .............................................................................. 3
INSTALLATION ......................................................................... 4
BEFORE APPLYING POWER! ...................................................... 6
TROUBLESHOOTING ................................................................. 6
TRANSCEIVER PICTORIAL ........................................................ 6
SPECIFICATIONS ...................................................................... 8
INSTRUCTION TO THE USER ..................................................... 9
INDUSTRY CANADA STATEMENTS ........................................... 10

MCT247 TRANSCEIVER
2
DESCRIPTION
The MCT247 is a frequency
hopping spread spectrum
transceiver module designed to
be compatible with US (FCC CFR
47 Part 15 C (15.247)),
Canadian (RSS-210), EU(RSS-
247 Issue 2/RSS-GEN Issue
5/ANSI C63.10:2013, IEC
62368-1:2014 (Second Edition))
and Australian() regulations for
license free use in the 2.4 GHz
ISM band from 2.407GHz to
2.470GHz. The MCT247 is
designed for mobile and portable
applications in accordance to
Part 2.1091(b).
The MCT247 complies with ISED
Limit per RSS-102 Issue 5 for
the uncontrolled RF Exposure of
portable device.
The MCT247 transceiver is only
integrated into Kar-Tech remote
control products by Kar-Tech, at
Kar-Tech. There are no user
serviceable parts on the MCT247
transceiver. The MCT247 is not
for sale by itself.
The MCT247 is not designed for
multiple antenna applications
and should not be used to
transmit simultaneously with
any other transmitter.
The MCT247 is only certified to
use the integrated wire antenna.
If the OEM or other user
requires further compliance
beyond those listed above, the
OEM or User is responsible for
attaining such additional
certifications.

MCT247 TRANSCEIVER
3
OPERATION
The MCT247 is a radio
transceiver module for the 2.4
GHz ISM bands. The transceiver
microcontroller includes a CPU,
GPI/O, a fully integrated
frequency synthesizer, a power
amplifier, a modulator and a
receiver unit. The MCT247
microcontroller serial port is
connected to the host via
protection circuits. The data is
sent through a serial port to RF
processor and then to RF circuit
to the antenna and the data
received from antenna is sent to
the serial port and to the host.
The microcontroller is
responsible for the control of the
entire communication. The
MCT247 transceiver contains a
DC regulator which generates a
constant 1.8 VDC for the digital
circuitry. The RF section runs on
the 3.3V supply.
The MCT247 uses Frequency
Hopping Spread Spectrum, that
uses 16 channels, between
2.407GHZ and 2.470GHZ with a
1MHz resolution.
The receivers are matched to
the transmitters to use the same
channels and sequence as the
transmitter’s signals.
There are no test modes built in
to the MCT247. Host code is to
be used to ensure compliance.

MCT247 TRANSCEIVER
4
INSTALLATION
1) Solder the MCT247
transceiver directly to the
host’s compatible
connector.
2) Print and attach the label
as shown below:
3) Place a label on the outside
of the host enclosure in a
visible area. On the label,
include the following:
“Contains FCC ID: P4U-
MCT247” and “Contains IC:
4534A-MCT247”
4) Connect the appropriate
antenna. A ¼ wavelength
wire antenna.
5) Once integrated into a final
product, use a spectrum
analyzer to make sure the
product still complies. Look
for:
a. Peak Power < 20dBm
b. Other peaks above
1GHz should be <
74dBuv/m. Below
1GHz, they should be
< 40dBuV/m.

MCT247 TRANSCEIVER
5
Application Requirements:
A) Power the MCT247
Transceiver with 3.3VDC
nominal voltage, with
peak current draw of
150mA.
B)Do not remove the shield
on the MCT247.
C) If you use something other
than the wire antenna,
the unit needs separate
approval.
D) The MCT247 can be
installed in mobile or
portable applications.
See Part 2.1091 for
definitions of mobile,
portable and fixed
applications.
E) Do not operate the MCT247
without an antenna.
F) Documentations: In the
host’s User Manual
include the following:
a. That there are no user
serviceable parts in
the radio modules.
They should not
remove or install radio
modules.
b. The “Instructions To
The User” section.
c. The “Industry Canada
Statement”.
d. Include in the manual,
“This device is granted
for use in Mobile and
Portable
configurations, with no
restrictions on
antenna placement for
exposure purposes.”

MCT247 TRANSCEIVER
6
BEFORE APPLYING
POWER!
Check power and ground for
proper polarity.
Read the rest of this manual.
TROUBLESHOOTING
There are no user serviceable
parts in the MCT247
Transceiver. Contact your KAR-
TECH representative for further
instructions or servicing.
PARTS LIST
PART NUMBER DESCRIPTION
021535C MCT247 RADIO TRANSCEIVER – WIRE
ANT
ENNA
There are no user-serviceable parts inside the transmitter or the
receiver. Return the units for service.
The information, specifications, and illustrations in this manual are those in effect at the time of
printing. We reserve the right to change specifications or design at any time without notice.
TRANSCEIVER PICTORIAL

MCT247 TRANSCEIVER
7
1.8900
1.2500
1.1687
0.0900
0.1000
1

MCT247 TRANSCEIVER
8
Pinout
Pin Function Pin Function Pin Function
1 GND 7 NC 13 NC
2 Not Used 8 Not Used 14 NC
3 GND 9 Not Used 15 NC
4 Not Used 10 NC 16 NC
5 Not Used 11 RXD 17 VIN 3.3V
6 NC 12 TXD 18 GND
SPECIFICATIONS
Equipment Class .............................. Part 15 Spread Spectrum Transmitter
FCC ID .............................................................................. P4U-MCT247
ICC (Industry Canada Certification) ID .............................. 4534A-MCT247
TRANSCEIVER
Power supply ........................................................................... 3.3VDC
Operating Current ........................................................................ 48mA
Operating temperature - Radio ....................................... -40˚C to +85˚C
Storage temperature ................................................... -40˚C to +100˚C
RF Frequency .................................................................... 2.4-2.48 GHz
RF Transmit power (EIRP) .......................................................... 100 mW
RF Receive Sensitivity ............................................................. -126 dBm

MCT247 TRANSCEIVER
9
INSTRUCTION TO THE USER
This equipment has been tested and found to comply with the limits
for a class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment
generates radio frequency energy and if not installed and used in
accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the
following measures:
* Reorient or relocate the receiving antenna.
* Increase the separation between the equipment and receiver.
* Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
* Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
FCC CAUTION: Any changes or modifications not expressly approved
by the party responsible for compliance could void the user's authority
to operate this equipment.

MCT247 TRANSCEIVER
10
INDUSTRY CANADA STATEMENTS
This device complies with Industry Canada license-exempt RSS
standard(s). Operation is subject to the following two conditions: (1)
this device may not cause interference, and (2) this device must
accept any interference, including interference that may cause
undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada
applicables aux appareils radio exempts de licence. L'exploitation est
autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas
produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter
tout brouillage radioélectrique subi, même si le brouillage est
susceptible d'en compromettre le fonctionnement.
Under Industry Canada regulations, this radio transmitter may only
operate using an antenna of a type and maximum (or lesser) gain
approved for the transmitter by Industry Canada. To reduce potential
radio interference to other users, the antenna type and its gain should
be so chosen that the equivalent isotropically radiated power (e.i.r.p.)
is not more than that necessary for successful communication.
Conformément à la réglementation d'Industrie Canada, le présent
émetteur radio peut fonctionner avec une antenne d'un type et d'un
gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie
Canada. Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs, il faut choisir le
type d'antenne et son gain de sorte que la puissance isotrope
rayonnée quivalente (p.i.r.e.) ne dépassepas l'intensité nécessaire à
l'établissement d'une communication satisfaisante.

MCT247 TRANSCEIVER
11
EUROPE
CE NOTICE
This device has been tested and certified for use in the European
Union. See the Declaration of Conformity (DOC) for specifics.
If this device is used in a product, the OEM has the responsibility to
verify compliance of the final product to the EU standards. A
declaration of Conformity must be issued and kept on file as described
in the Radio and Telecommunications Terminal Equipment (R&TTE)
Directive.
The ‘CE’ mark must be placed on the OEM product per the labeling
requirements on the Directive.
Declaration of Conformity (DOC)
This DOC can be downloaded from the www.kar-tech.com.

2.2 List of applicable FCC rules
CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular transmitter
2.3 Specific operational use conditions
This module is stand-alone modular.If the end product will involve the Multiple simultaneously transmitting condition or
different operational conditions for a stand-alone modular transmitter in a host, host manufacturer have to consult with
module manufacturer for the installation method in end system.
2.4 Limited module procedures
This module is single modular with shielding.
2.5 Trace antenna designs
Not applicable
2.6 RF exposure considerations
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment
should be installed and operated with minimum distance 3.6cm between the radiator & your body.
2.7 Antennas
The following antenna will be used with the MCT247 module and integrated into Kar-Tech products,The MCT247 is not
designed for multiple antenna applications and should not be used to transmit simultaneously with any other transmitter.
The MCT247 is only certified to use the integrated wire antenna.Antenna Description:WIP Monopole antenna,
1.1dBi(Max.)
2.8 Label and compliance information
The final end product must be labeled in a visible area with the following" Contains FCC ID:P4U-MCT247.
2.9 Information on test modes and additional testing requirements
Host manufacturer which install this modular with limit modular approval should perform the test of radiated emission and
spurious emission according t o FCC part 15C:15.247 and 15.209 requirement, only if the test result comply with FCC part
15.247 and 15.209 requirement, then the host can be sold legally.
2.10 Additional testing, Part 15 Subpart B disclaimer
Host manufacturer is responsible for compliance of the host system with module installed with all other applicable
requirements for the system such as Part 15 B.
12