2.4GHz Digital Wireless Audio Video RS485 Transmitter Receiver Transceiver CTX-04
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RS485 Wireless 2.4GHz Transceiver


2.4GHz Digital Wireless Audio Video RS485 Transmitter Receiver Transceiver

CTX-04 2.4GHz Digital Wireless Audio Video RS485 Transmitter Receiver Transceiver has 100mW output on average and DC12V input. This CTX-04 digital AV TX RX set offers great audio, video and data wireless connection at 2.4GHz with multiple non-interfering channels.

This ideal audio video portable RS485 sender transceiver is helpful for analogue camera’s wireless signal expansion like PTZ camera having the video transmitter with RS485 communication to work with the analog monitor having the video receiver with RS485 communication.

CTX-04 Digital AV TX RX is capable of supporting up to 250 Meter light of sight anti – interference wireless transmission.
  • Offer a wireless link solution audio/video/data signals connection.
  • 2.4 GHz frequency hopping spread spectrum module and supported max. 25 Auto hopping channels for resisting interferences to other 2.4G devices.
  • 100mW RF output (Average).
  • Point to point mode only.
  • MPEG-4 (D1) standard video compression and stereo audio inputs.
  • 5-bit ID pairing key for security.
  • Max. 250 meters (light-of-sight)
  • FCC Certified

TX and RX
Items / Models TX RX
Frequency Channels 2400 ~ 2480 MHz, 25-CH Auto Hopping (FCC & CE RTTE)
RF TX Power 100mW (Average) -
Modulation 16-QAM,QPSK,BPSK  
Min. RX Sensitivity - -80dBm
RF Impedance 50Ω 50Ω
Distance vs. Frame Rate 250 Meters: 15 ~25 fps(NTSC) / 13 ~21 fps(PAL)
150 Meters: 20 ~30 fps(NTSC) / 17~25 fps(PAL)
100 Meters: 30 fps(NTSC) / 25 fps(PAL)
Video Compression MPEG-4
Max. Frame Rate vs. Resolution NTSC: 30 fps at 720 × 480 (D1)
PAL: 25 fps at 720 × 576 (D1)
Bit Rate Up to 6Mbps
Sampling Rate 48KHz, Stereo
S/N Ratio 63dB
RS-485 2-wire RS-485 Half Duplex
Baud Rate: 2400/4800/9600 bps
Fixed Formats:1 Start bit, 1 Stop bit, 8 Data Bits, No Parity
120 Ohm Termination Resistor ON/OFF Setting
LED Indicators
Red LED Power On and RF Link Status
Green LED RS-485 Data Link Status
Mechanical & Environmental
Power Consumption 230 mA @ 12VDC 230 mA @ 12VDC
Operation Temp. -10℃ ~ 50℃
Storage Temperature -30℃ ~ 85℃
Dimensions (without Antenna) 110 × 94 × 30 mm
Weight (without antenna) 237 g 235 g