Rf Module 315 mhz consist of transmitter and receiver module used  for transmitting  data via RF. Its frequency range is 315mhxz. They easily fit into a breadboard and work well with microcontrollers to create a very simple wireless data link. They are mostly used in Wireless calling system, burglar alarm, wireless data transmission, automated data acquisition system , DIY projects and many more. It has wider range of working voltage with stable performance.

The module helps to communicate with Arduinos wirelessly. It is mainly transmit and receive the data because it has high volume of application than IR. RF signals travel in the transmitter and receiver even when there is an obstruction. It operates at a specific frequency of 433MHz.

Features

• Very small size
• Light weight (under 4 grams without antenna)
• 433Mhz frequency band
• Receiver sensitivity to -140 dBm
• Transmit power max 30dbm (1000mW @ 9600bps)
• Transparent serial link
• Air data rates up to 250kbps
• Range of approx 1 mile with supplied antennas
• Demonstrated range of several kilometers with a small omni antenna
• Can be used with a bi-directional amplifier for even more range
• MAVLink protocol framing and status reporting
• Frequency hopping spread spectrum (FHSS)
• Adaptive time division multiplexing (TDM)
• Support for LBT and AFA
• Configurable duty cycle
• Built in error correcting code (can correct up to 25% data bit errors)
• Open source firmware
• AT commands for radio configuration
• RT commands for remote radio configuration
• Adaptive flow control when used with APM
• Based on the HopeRF HM-TRP radio module, featuring an SiLabs Si1000 RF microcontroller.
• Upgraded to more convince Molex 1.25mm

Specifications:

• Band: 433MHz
• Antenna connectors: RP-SMA connector
• Output power: 1000mW (30dBm), adjustable between 1-30dBm
• Sensitivity: -140 dBm sensitivity
• Interface: Standard TTL UART
• Connection status: LED indicators

Package Includes:

• Radio Telemetry base station (USB Connection)
• Telemetry Transceiver (Pin Header)
• lead set x 1
• Antenna x 2

*2Km range is only possible when used in proper weather condition, very low air data rate and line of sight Ground-Air. With default settings and full transmit power on both ends the range is around 300-500 meters.

FPV 5.8G 600mW A/V Transmitting/Receiving System TS832 + RC832  is used with various kinds of remote control toys like  Rc helicopter , quad copter, airplane and many more as an universal video transmitter and receiver. It is plug and playable with range of more than 5km in an open area. This module has push button and digital display in built for easy channel change. The transmitter is compatible with the old 8 pass receiver and receiver is compatible with the old 8 pass transmitter. It has independent video and audio signal outputs

The APC230 Wireless Transceiver Module is self organizing wireless transceiver module. It is highly integrated semi duplex low power wireless data transfer module. It has embedded high speed microprocessor and high performance IC. It also has improved anti-interference and sensitivity for high efficiency forward error correction channel encoding technology. It can be suitable for various applications like: - Wireless transducer, Industrial automation, Remote control and monitoring, the management of cars, Wire replacement, the control of traffic signals, Wireless handheld terminal, automated meter reading and many more. 

Fs-ia10b Receiver is a 2nd generation version of the automatic increase in a frequency hopping digital system. It is the device that has 10- channel receiver data return receiver remote control model aircraft model is compatible with muti-axis.

• Antenna Included
• Works with Arduino, Raspberry Pi, ARM, AVR, PIC and other controllers
• Longer range than Bluetooth, WiFi, Zigbee
• Applications include, Automated Meter Reading, Home and Building Automation, Wireless Alarm and Security Systems, Industrial Monitoring and Control, Long range Irrigation Systems, Smart City