Yuneec Technology SR24NP User Manual

INTRODUCTION

SR24NP module is a highly- integrated, single-chip, 2.4G wireless transceiver. It is equiped with

two antennas which can overcome the disadvantages of the single directional antenna as well as

enhance signal stability and transmission distance. It also has two serial ports to connect with

corresponding serial devices. it can be flexibly configured for RF front-end transmitter or receiver

in the model aircraft system. Its transmitter power can be set from 0dB to 4.5dBm by software.

the operation mode of the antenna with two transmitters and two receivers .

SPECIFICATIONS:

Dimension：20.5mm*30.15mm*0.8mm

Electrical Characteristics：

ITEM TEST REQUIREMENT REMARKS

Voltage supply

Center frequency

2.0－3.6V

2400－2483.5MHz

DC

Programmable

Frequency error 50KHz

Modulation DSSS-OQPSK

Output power 0-4.5dBm Programmable

Receiving sensitivity -97dBm @250Kbps data rate

Receiving current 29.6mA

Transmitting current 39.6mA Po=4.5dBm

Sleep consumption

0.4mA

1uA

Power Mode 1

Power Mode 3

Data rate 250kbps typical

Transmit distance 100M At open area

Antenna

SISO, Dipole Antenna Gain:1dBi

Size 20.5*31.5mm

Operation temperature -30 to+85°C Base on crystal performance

OPERATIONS：

STEP 1}: Connected to a 3.3V DC power supply

STEP 2): Connect to main control board through UART port.

NOTICE: It can be used as transmitter module as well as receiving module, realizing

intercommunication.

FCC STATEMENT:

This equipment has been tested and found to comply with the limits for Part 15 of the

FCC rules. These limits are designed to provide reasonable protection against

harmful interference in a residential installation. This equipment generates, uses and

can radiate 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 to an outlet on a circuit different from that to which the

receiver is connected.

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.

NOTE: 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, uses and can radiate 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.

CAUTION: Any changes or modications not expressly approved by the party

responsible for compliance could void the user's authority to operate this equipment.

RF EXPOSURE WARNING

• This equipment must be installed and operated in accordance with provided

instructions and the antenna(s) used for this transmitter must be installed to provide a

separation distance of at least 20 cm from all persons and must not be co-located or

operating in conjunction with any other antenna or transmitter. End-users and

installers must be provide with antenna installation instructions and transmitter