Receiver module one + transmitter module one Send antenna one set 1, product description The RX470 receiving module is a demodulator UHF ASK receiver that supports ASK and OOK modulation modes. This receiving module has high sensitivity (-108dbm), low power consumption performance, while having a high dynamic range (over 60dB). The module uses a highly integrated chip, integrated front-end low noise amplifier, mixer, filter, frequency synthesizer and other circuits that can report a large degree of optimization. 2, Product Features Support ASK/OOK modulation mode, receiving sensitivity reaches -108dbm; Operating frequency: 315MHz, 433.92mhz, bandwidth about 150KHz; Power voltage input range: 2.2v-5.0v; Good selective and spurious radiation suppression capability, easy to pass CE/Fcc certification; Good local oscillator radiation suppression capability , multiple receiving modules can work together (i.e. single sending and more receiving) and do not interfere with each other, using together does not affect the receiving distance ; Temperature range: -40-85 can work normally even in severe ambient temperature; 3. Scope of application Wireless power switches, sockets Remote controlled curtains, access control, electric vehicles Security and monitoring systems< /p> Hotel room control Smart home products 4, package and pin arrangement Insertion module - rx470- 4 Antenna size: Ordinary application type For general applications, the antenna can be directly matched to common market specifications , as follows: 315M antenna Antenna wire core diameter (with skin) 1.0mm, (without skin) 0.5mm; < p>Length 17.5mm for soldered ends and 9.5mm for antenna ends; Diameter of antenna winding (with skin) 5mm; Number of winding turns 15 turns. 433M antenna Welded end wire length 10mm Total wire straightening length antenna length 170mm; Number of winding turns 15 turns. Special and improved type If you need greater antenna distance communication, ordinary application type antenna cannot be satisfied, upgraded antenna is available to improve the receiving distance, details as follows: 315M Antenna < p>Aerial wire core diameter (with skin) 1.2mm, (without skin) 0.5mm; Length of soldered end wire 20mm; Diameter of antenna winding (without skin) 6.8mm; Winding number 13 turns, winding length 23.5mm. 433M antenna Aerial wire core diameter (with skin) 1.0mm, (without skin) 0.35mm; Length of soldered end wire 12mm ; Antenna winding diameter (without skin) 3.0mm; Winding number 26 turns, winding length 36mm.