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C&T RF Antennas Inc
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433MHz Antennas RP-SMA

This single band rubber duck portable antenna of The C&T RF Antennas Inc has a frequency center 433MHz and a 1 nominal dBi gain. Our portable rubber duck antenna uses RP-SMA male connector and is rated for 50 Watts input.

Product Description

This single band rubber duck portable antenna of The C&T RF Antennas Inc has a frequency center 433MHz and a 1 nominal dBi gain. Our portable rubber duck antenna uses RP-SMA male connector and is rated for 50 Watts input.

There are nearly as many different types of rubber duck antennas of The C&T RF Antennas Inc as there are radios and wireless peripheral devices that use them. When comparing two antennas together, it is sometimes easier to look at them in terms of frequency and gain. The frequency of an antenna is predicted by its application.

This single band rubber duck portable antenna of The C&T RF Antennas Inc has a frequency center 433MHz and a 1 nominal dBi gain. Our portable rubber duck antenna uses RP-SMA male connector and is rated for 50 Watts input.

Antenna height and frequency, Antenna color and connector can be customized.

RF 433 MHz Lora Antennas RP-SMA Specifications:

Omnidirectional Dipole Lora 433 MHz Rubber Duck Antenna
Item NO.: C&T -AD-SMA-10-109
Frequency Center: 433 MHz,
Peak Gain: 1dBi
Horizontal beamwidth: 360degree
VSWR: ≤1.8
Size : 10x109mm
Impedance: 50Ω
Polarization: Vertical
Max power: 50W
Lightning protection: DC Ground
Connector: RP-SMA or Custom
Polarization: Vertical; Liner;
Weight: 12g
Radiation pattern: Omnidirectional
Material: Plastic ABS+PC
Operational Humidity: <95%
Rated Wind Velocity: 36.9m/s
Working  temperature: -40-65 degree
Operating  temperature: -40-60 degree

The C&T RF Antennas Inc "Rubber-Duck" Wireless LAN antennas provide broad coverage with an omnidirectional pattern. All antennas feature tilt-and-swivel connectors and are available in models ranging from 1 dBi to 9 dBi. 

Compact size
Flexible "Rubber Duck" antenna
Tilt and swivel design
SMA Connector
Optional Magnetic Mount Available

The C&T RF Antennas Inc’s Rubber duck antennas can be connected directly to the wireless device or alternately attached to a magnetic base, which can be mounted vertically or horizontally on any metal surface. The base is then connected to the device with an extension cable.

The C&T RF antennas Inc locates in Dongguan City, Guangdong province, was established on May 12, 2011. The company is specializing in the production of 2.4G antenna, 3G antenna, AP antenna, NB antenna, WIFI antenna, Vehicle DVB-T, ISDB, ATSC CMMB antenna, digital TV antenna, 3G antenna, 4G antenna, spring antenna, high gain antenna, mobile phone antenna, router antenna, GSM/CDMA/GPRS antenna, GPS antenna, navigation GPS communication antenna, RF connector, RF cable assemblies, etc, with good production environment, professional production and testing equipment and advanced production technology, perfect testing standards and quality management system.

The company also has a senior team in management and engineering, and business development staff. 

With strong R & D capabilities, our products currently face both domestic and foreign markets, mainly serving the industries of automotive, computer, wireless router, satellite positioning navigation, ship, satellite communication etc.

Why Choose Us?
We have a good production environment, professional production, and testing equipment and advanced production technology, perfect testing standards, and quality management system
Our mission is professional, concentrative, best quality best service responsible for our customers!

Concurrent radio, as well as switched Smart Antenna options, are available.

Lora (Long Range) is a patented digital wireless data communication technology developed by Cycleo of Grenoble, France, and acquired by Semtech in 2012. Lora uses license-free sub-gigahertz radio frequency bands like 169 MHz, 433 MHz, 868 MHz (Europe) and 915 MHz (North America). Lora enables very-long-range transmissions (more than 10 km in rural areas) with low power consumption. The technology is presented in two parts — Lora, the physical layer and LoRaWAN (Long Range Wide Area Network), the upper layers.

Lora and LoRaWAN permit inexpensive, long-range connectivity for the Internet of Things (IoT) devices in rural, remote and offshore industries. They are typically used in mining, natural resource management, renewable energy, transcontinental logistics, and supply chain management.

Terminal antenna
Lora system
Wireless data transmission
Mobile communication

The C&T RF antennas Inc is an innovative and creative company specialized in the design and supply of multiband antenna solutions for telemetry and telematics applications. Our experience covers a wide range of antenna products from miniature handset antennas to wireless access point antennas and a variety of solutions in between.

We offer a range of standard products in the GSM, Cellular, ISM, GPS, and Wireless LAN frequency bands to reduce the time and cost of designing in custom antennas into wireless products and devices.

The use of 433 and 868 MHz
433 and 868 MHz enable C&T to communicate with numerous wireless devices from a broad range of different brands. Since the communication standards are relatively old there are many devices which use it, especially the more affordable devices. 868 MHz features several security devices. Note that these are just a few the relatively well-known brands. There are TONS of wireless devices out there which use these technologies – from robot lawn mowers to fireplaces and TV mounts and much, much more!

433MHz essentially is a frequency band that is used for communication in home appliances among other things. It has become quite popular as most countries in the world have freely allowed communication. This means devices may use the band without any restrictions or license fees. The only limitation is transmitting power, but the power limit is plenty for wireless transmission around the house. 868MHz is also free to use but requires your device to keep communication to a minimum (it is only allowed to transmit a signal more than 1% of the time). This makes 868MHz more suited for alarm/security signals since signals have a higher probability of getting through without being disrupted by other devices. This is a key difference compared to the unrestricted 433 bands, where everyone can just ‘shout’ (i.e. transmit data) and thereby disturb other signals.

How 433Mhz and 868Mhz communication works
Communication on 433/868 works with radio frequency waves on those frequencies. These waves are transmitted and received by a radio transceiver with an antenna. On these bands, a couple of communication methods can be used, called radio modulations.

The most commonly used radio modulations on 433 and 868MHz are ASK (Amplitude-Shift Key) and variations of FSK (Frequency-Shift Key) like BFSK or GFSK. Basically, they define how data is transmitted: ASK uses differences in Amplitude (transmitting power) to create waves/data transmission. FSK uses slight differences in frequency instead. Nearly all 433/868 devices support just a single radio modulation. Often for controllers, this is ASK modulation for 433 and FSK modulation for 868 MHz. However, in order to enable our antenna to work with as many devices as possible, we have made sure that both radio modulations are supported on both technologies.

Delivering Antenna Innovation
Antennas designed for IoT, M2M, telematics, telemetry and monitoring applications using both licensed and unlicensed frequencies.
LTE & 4G Antennas
GSM & 3G Antennas
GPS & GNSS Antennas
2.4 & 5.8 GHz Antennas
169 / 433 / 868 / 915 Antennas
VHF & UHF Antennas
RF Coaxial Cable Assemblies
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