CDT-TX-02M-R and CDT-RX-03M are CE certified radio modules operating in the 434 MHz ISM band. In addition to the high performance of the narrow band FM (MSK) provided by the radio modules, the CDT-TX-02M-R and CDT-RX-03M include all the necessary components for processing switching signals allowing them to be transmitted and received without the addition of external circuits. The modules provide 6 switching inputs/outputs and feature four selectable preprogrammed RF channels.
Features
- 10 mW RF output power
- TX 2.2 V to 12 V @ 27 mA, 1 uA at stand by
- RX 3.0 V to 12 V operation
- MSK modulation
- Receiver sensitivity -117 dBm
- 6 switching signal transmission and reception
- RED compliant (EN 300 220)
- 426 MHz version available (Japan)
Applications
- Remote control applications
- Emergency light
- Alarm systems
- Start / Stop control for motor operated equipment
Other products related to this product
Specifications
Common
| Parameter | Specification | Remarks |
|---|---|---|
| Applicable standard | EN 300 220 | |
| Communication method | One way | |
| Emission type | F2D | Sub-carrier MSK |
| Frequency | 434.075 / 433.920 / 434.600 / 434.700 MHz | |
| Number of RF channels | 4 channels | |
| RF bit rate | 1,200 bps | |
| Operating temperature range | -20 to +60 degree C | No dew condensation |
| Communication range | 500 to 1,000m | Line of sight |
Transmitter Part
| Parameter | Specification | Remarks |
|---|---|---|
| Transmitter type | PLL controlled VCO | |
| RF output power | 10 mW | |
| Inputs | 6 Switch inputs | Negative logic |
| Antenna | 1/4 lambda whip antenna | |
| Supply voltage | 2.2 to 12 V DC | Max. rating 14.5 V |
| Supply current | 27 mA typ. (TX) 1 uA typ. (Stand by) |
|
| Dimension | 36 x 26 x 8 mm | Excluding protrusion |
| Weight | 15 g |
* Antenna, ANT-LEA-01-R, is included.
Receiver Part
| Parameter | Specification | Remarks |
|---|---|---|
| Receiver sensitivity | -117 dBm | Level for stable operation |
| Outputs | 6-photo MOS relay outputs | |
| Output relay | Max. 48 V, 100 mA | AC/DC |
| Operating mode | One-shot, Toggle, Switching, Continuous | Set by 3 input ports |
| Antenna | 1/4 lambda whip antenna | |
| Supply voltage | 3.0 to 12.0 V DC | Max. rating 14.5 V |
| Supply current | 19 mA (6 outputs off) 55 mA (6 outputs on) |
|
| Dimension | 53 x 35 x 12 mm | Excluding protrusion |
| Weight | 35 g |
* Antenna, ANT-LEA-01-R, is included.
External View
CDT-TX-02M-R
* Antenna, ANT-LEA-01-R, is included.
CDT-RX-03M
* Antenna, ANT-LEA-01-R, is included.
Operation Guide
| Version 2.0 (CDT-TX-02M-R, CDT-RX-02M-R) |  |
|---|---|
| Version 1.0 (CDT-RX-03M) | |
3D CAD (STEP) file
| Get STEP file of CDT-RX by email | click here |
|---|
Supplementary Information
Certifications
| DoC for CE (CDT-TX-02M-R) | |
|---|---|
| DoC for CE (CDT-RX-03M) | |
| DoC for UKCA (CDT-TX-02M-R) | |
| DoC for UKCA (CDT-RX-03M) | |
Parts Change Notice (PCN)
| PCN2331002 (Aug. 2023) | |
|---|---|
| PCN2031001 (Jun. 2020) | |
Product Discontinuation Notice (PDN)
| PDN1907002 (Jul. 2019) | |
|---|
Evaluation Tools : TB-CDT-TX-01 , TB-CDT-RX-01
The test board will save your time and effort for evaluation of CDT-TX-02M-R and CDT-RX-03M modules. Communication range can be tested easily by checking the LEDs on the decoder board TB-CDT-RX-01.
TB-CDT-TX-01 and TB-CDT-RX-01 do not include modules CDT-TX-02M-R and CDT-RX-03M. Please make sure to order them if needed. The boards can be used for evaluation of the radio modules CDT-TX-01 with CDT-RX-01 or CDT-TX-02M-R with CDT-RX-02M-R / CDT-RX-03M.
Features
- 6-push buttons and output LEDs.
- Dip switch for receiver mode setting.
External View
TB-CDT-TX-01
TB-CDT-RX-01
Battery holder
Accessories
ANT-LEA-01-R
Lead antenna with plug
...more infoANT-RIG-01-R
Rigid antenna with plug
...more infoANT-01-R
434MHz antenna with extension coaxial cable for the receiver
...more infoCBL-TMP-01-R
Coaxial cable
...more info
![[ Video ] Antenna height pattern calculation tool](https://www.cdt21.com/wp/wp-content/uploads/2024/12/Antenna-height-calculation-tool.png)
[ Video ] Antenna height pattern calculation tool
![[ Video ] Fresnel zone calculation tool](https://www.cdt21.com/wp/wp-content/uploads/2024/10/Fresnel-zone-calculation-tool.png)
[ Video ] Fresnel zone calculation tool
![[ Video ] [ CDT-TX-02M-R, CDT-RX-03M] - Demonstrating the application of the 434 MHz / 426 MHz telecommand radio modules](https://www.cdt21.com/wp/wp-content/uploads/2024/08/Demonstrating-the-application-of-the-434-MHz-426-MHz-telecommand-radio-modules.png)
[ Video ] [ CDT-TX-02M-R, CDT-RX-03M] - Demonstrating the application of the 434 MHz / 426 MHz telecommand radio modules
![[ Video ] [ CDT-TX-02M-R, CDT-RX-02M-R ] - Demonstrating how to send ON-OFF sensor data in the 434 MHz ISM band.](https://www.cdt21.com/wp/wp-content/uploads/2023/01/cdt-txrx-02m-r_multi-channel-telecommand-transmitter-and-receiver.png)
[ Video ] [ CDT-TX-02M-R, CDT-RX-02M-R ] - Demonstrating how to send ON-OFF sensor data in the 434 MHz ISM band.
![[ Video ] [ CDT-TX-02M-R, CDT-RX-02M-R ] - Introducing the telecommand transmitter and receiver for 434 MHz ISM band.](https://www.cdt21.com/wp/wp-content/uploads/2023/01/cdt-txrx-02m-r_on-off-transmission.png)
[ Video ] [ CDT-TX-02M-R, CDT-RX-02M-R ] - Introducing the telecommand transmitter and receiver for 434 MHz ISM band.
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Even in areas with no access to a power supply, the solar powered radio warning system ensures complete safety management in dangerous construction areas such as disaster prone areas and erosion control works.
CDT-TX-02M, CDT-RX-02M, WT-01
The construction area on the river and the general mountainous area around it carry a high risk of mudflow and landslides. While keeping construction workers safe, for the local residents in the area an emergency warning system that can immediately supply a warning is used.
Company name
Hokuyo Construction Co. Ltd.
- What is RSSI? And how to use it?
- What is 12dB SINAD?
- For CDT-TX-02M-R / CDT-RX-03M, is it possible to send multiple switching signals at the same time?
- Is it possible to use the CDT-TX-02M-R / CDT-RX-03M for data communication?
- What is the reason for long communication range when using CDT-TX-02M-R / CDT-RX-03M module?
- How long does it take to start transmission after switching on the CDT-02?
- What is the minimum input pulse width to the CDT-TX-02M-R to cause an output from CDT-RX-03M?
- For CDT-TX-02M-R, what does standby mean?
- For the CDT-RX-03M, what is the current consumption during listening?
- What kind of battery is used for the transmitter CDT-TX-02M-R 434 MHz?
- What is a PhotoMOSFET relay?
- For the CDT-TX-02M-R, can I interface to a microcontroller instead of mechanical switches?
- I want to put the RF module in my enclosure? What do I need to be careful of?
- There is a problem with communication range. What is the problem? What should be checked?
- How should the antenna be handled?
- I'd like to use my own antenna on your module. Where can I find the suitable connector (e.g. SP06022)?