Makkalen Hot New Updated Professional Radiotelemetry 3DR 500 MW 433 Mhz 915 Mhz for Flight Control FPV APM Pixhawk Kit

Description

Feature: 915 Mhz frequency band of 433 MHz frequency range Receive sensitivity is -121 dBm Transmit power is 20dBm (100mW) Transparent serial link Air data transfer rate up to 250kbps MAVLink protocol frame and status report Frequency Hopping Spread Spectrum (FHSS) Adaptive Time Division Multiplexing (TDM) Support for LBT and AFA Configurable duty cycle Built-in error correction code (can correct up to 25% of data bit errors) Use small omnidirectional antennas up to several kilometers A larger range can be obtained with a bidirectional amplifier Open source firmware AT command configuration data transmission RT command remote configuration data transmission Adaptive flow control when used with APM Based on the HM-TRP wireless module with Si1000 8051 microcontroller and Si4432 wireless module. The 100MW transmit power is adjusted to the highest, and the actual test is about 700-800 meters stable receiving transmission. Under the default parameters, the transmit power is only 11 and the distance is very short. Please adjust it yourself. Glue stick bendable antenna: The 100mw short antenna gain is 3.5dbi. Long antenna gain is 5dBi, short antenna gain is 3.5dbi Package Content: 1x3DR RadioTelemetry Data Transmission Module Set