Audio/Data RF Module

Audio /Data RF module interface description: PinNameDescriptionLevelTerminal Notes1SQ SQ Output TTL User modem SQ 2RxD Serial data RX terminal TTL/UART TxD 3TxD Serial data TX terminal TTL/UART RxD 4C485 Use for 485Chip TX&RX control TTL Control of 485Chip 5RSSI RSSI Analog signal Test use 6AUDIO_OUT Audio Output Baseband signal User modem input 7PTT TX/RX Control TTL User PTT 8AUDIO_IN Audio Input Baseband signal User modem output 9VCC Power DC8V 10GND Power supply Keyspecification ModeData module FC-203/SA Standard..................GB/T16611 Frequency :223MHZ 235MHZ, 150-162MHz Channel spacing :25KHz/12.5KHZ RF Power: 2W Moduleation :16K0F3E,8K5F3E Intermediate frequency:45.1MHz & 455KHz Channels:16 Power :8V DC Temperature Store temperature: 40°C to +80°C Working temperature :30°C to +60°C Current RX current ≤35mA TX current < 800mA Dimensions.:(75mm)L x (45mm)W x (12.5mm)H Weight: ≤ 45.5grams Transmitter specification: Frequency stability.:±2.5 ppm Frequency deviation: 25kHz Channel Spacing..≤±5.0kHz, 12.5kHz Channel Spacing≤±2.5kHz, Audio responseWithin +1/-3dB of 6dB octave @300Hz to 2.55kHz for 12.5kHz C.S @300Hz to 3.0khz for 25kHz C.S Adjacent channel power 25kHz< 70 dBc @ Nominal Condition <65 dBc @ Extreme Condition 12.5kHz < 60 dBc @ Nominal Condition < 55 dBc @ Extreme Condition Spurious emission ..< -36 dBM Modulation sensitivity 100mV peak Dev. Hum & Noise: 25kHz Channel Spacing.:>40 dB (with no PSOPH) 12.5kHz Channel Spacing.:>36 dB (with POSPH) Modulation Linearity..<10% Peak Dev@1kHz input for nominal dev +20dB Loading stabilityNo osc at >= 10:1 VSWR all phase angles and suitable antenna No destroy at >= 20:1 all phase angle Receiver specification Sensitivity (12dB Sinad) .<-119 dBm, Adjacent channel selectivity 25 kHz Channel Spacing .≥70dB @ Nom., 12.5kHz Channel Spacing.≥60dB@Nom., Spurious Response rejection70dB Image response > 70 dB IF Response . >70 dB Others> 70 dB Intermodulation response rejection≥65 dB Conducted Spurious Emission @ Nominal Conditions<-57 dBm AF Distortion ..<5% @ Nom. <10%@ Extreme Condition RX Hum & Noise: 25.0kHz CP< 40dB No PSOPH 12.5kHz CP ..< 40dB with PSOPH Receiver response time .< 20ms L.O. Frequency temperature stability1 st <2.5 ppm, 2 nd <10 ppm for 30°C to +60°C Reference Crystal (TCXO) Frequency. 13MHz Temperature Characteristic+/- 2.5PPM from 30°C to +60°C Aging Rate.< 2ppm/year in 1 st year <1ppm/year thereafter TX to RX < 20ms RX to TX .... < 45ms Data transission Modulation Type------------------------FSK Interface data rate-------------------- 9600bps Interface data format-----------------8E1/8N1/8O1 Air data rate----------------------------- 9600 bps