Maximum Compatibility for Your 433 MHz Setup
Give your Smart Home the signal upgrade it deserves! This 433 MHz Omni-Directional Antenna is the ideal solution to stabilize and optimize your device connections. Thanks to its universal SMA connector, you simply screw it onto a huge range of devices – from your Homematic CCU3 hub to a Raspberry Pi with a radio module, and various IoT sensors. The clever swivel joint is your best friend here: whether your device is standing or lying down, you can always perfectly align the Antenna vertically to get maximum performance from your system.
Compact, Discreet, and Featherlight
Large Antennas can disrupt aesthetics and unbalance small devices. This model is different. With a length of just under 11 cm and a weight of only 10 grams, this compact SMA Stick Antenna is designed to seamlessly blend into your living environment. The simple white design is discreet and modern. Connect it directly to your Smart Home Gateway without worrying about mechanical strain or a bulky appearance – it simply does its job without drawing attention.
Optimal Near-Field Coverage with 360° All-Around Reception
More isn't always better. The 2dBi gain is deliberately chosen for use in apartments and houses. Instead of frantically bundling the signal in one direction, this Antenna distributes the transmission power evenly like a light bulb in a 360° radius around itself. The result: clean and stable coverage for all your devices in the near and mid-range. This way, you not only reduce dead spots in individual rooms but also minimize susceptibility to interference signals from distant transmitters.
Simply Screw On, Align, and Get Started
You can skip complicated installations. Replacement or retrofitting is a matter of seconds: unscrew the old Antenna, screw on the new Antenna, done. Thanks to the Tilt-and-Swivel joint, you can bring the Antenna into the optimal vertical position (90°) with a single movement. This is crucial for polarization and thus for the best possible signal transmission. A small adjustment with a big impact to noticeably improve the range for Raspberry Pi or other hubs.
Strengths & Notes at a Glance
- Pro: High compatibility with devices featuring an SMA connector (e.g., Homematic, RaspberryMatic).
- Pro: Flexible swivel joint for optimal vertical alignment even in confined spaces.
- Pro: Very compact and lightweight design, ideal for small devices.
- Pro: 360° radiation for even signal distribution in all directions.
- Pro: Targeted optimization for short to medium distances indoors.
- Note: Not suitable for long-range applications.
- Note: Designed exclusively for indoor use.
Specifications & Features
| Antenna Type: | Omni-Directional Antenna / Stick Antenna |
| EAN / GTIN: | 4251028603735 |
| Manufacturer Part Number (MPN): | DA-433-02-WE-SMA |
| Shop SKU: | ART7206 |
| Frequency Range: | 412 - 440 MHz |
| Optimized for: | 433 MHz ISM Band |
| Gain: | 2dBi |
| Impedance: | 50 Ohm |
| VSWR: | max. 2.0 |
| Polarization: | Linear, Vertical |
| Beamwidth (Horizontal): | 360° |
| Connector: | SMA Male |
| Joint: | Swivel Joint (Tilt-and-Swivel), lockable at 0°, 45°, 90° |
| Length: | 108 mm |
| Diameter: | 10 mm |
| Weight: | approx. 10 g |
| Color: | White |
| Application Area: | Indoors |
| Operating Temperature: | -20 °C to +60 °C |
| Storage Temperature: | -30 °C to +75 °C |
| Humidity (Operating): | 0 % to 85 % (non-condensing) |
Scope of Delivery
| 1 x 433 MHz Omni-Directional Antenna DA-433-02-WE-SMA (white) |
Frequently Asked Questions (FAQ)
Can you improve the range of your Homematic CCU3 or Raspberry Pi with this antenna?
Yes, absolutely! If your device has an SMA connector, this antenna often provides a more stable and slightly improved range compared to the usually tiny standard Antennas. The swivel joint helps you always perfectly align the antenna vertically for the best reception.
What does '2dBi gain' mean, and is it good for you?
Imagine gain like the focus of a lamp. A 2dBi gain means the antenna radiates the signal evenly in almost all directions, like a bare light bulb. This is perfect for providing coverage to your devices all around a room or apartment. For long, targeted distances, a higher gain would be better, but for most Smart Home applications, this value is ideal.
Does this antenna also fit my RP-SMA connector?
No, unfortunately, it doesn't fit directly. This antenna has an SMA connector with a small pin in the center. Your RP-SMA connector expects a jack without this pin. So, before buying, check exactly which connector your device has to avoid frustration. Alternatively, you'll need a suitable adapter.
How do I align the antenna for the best reception?
Not in terms of cardinal direction! Since it's an omni-directional antenna, it transmits evenly in all directions. However, vertical alignment is important. For the best performance, the antenna should stand vertically. That's exactly what the practical swivel joint is for – so you can perfectly position it even on devices lying flat.
Does this antenna also work for my WiFi or for 868 MHz devices?
No, absolutely not. This antenna is a specialist and built exclusively for the 433 MHz frequency band. It will not work, or only extremely poorly, with your WiFi Routers (2.4/5 GHz) or 868 MHz devices. Remember: every frequency needs its own perfectly matched antenna.
Reception isn't perfect despite the new antenna. What can I do?
Location is everything! Position your antenna as freely and centrally as possible. Be sure to keep a distance from large metal objects like radiators or refrigerators, and also from sources of interference like power supplies. You'll be amazed at what a few centimeters of position change can do!
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