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Help CenterCustom Lora Band Antenna 868 Mhz SMA Dipole Antennas for Wireless Data Transmission
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Custom Lora band antenna 868 Mhz SMA Dipole antennas for wireless data transmission
This wireless data transmission 868Mhz antenna is supplied by C&T RF Antennas Inc.
Rubber duck antenna:
Key Specifications/Special Features:
Frequency: 868 Mhz
Type: Custom Dipole antenna external
Mounting way: SMA Male connector mount
Impedance: 50 Ohms
Features:
Good appearance
Durable, corrosion resistance
Full day for working, waterproof
Optimized dimensions
High gain, lower VSWR, strongly anti-interference
Application:
Terminal antenna
868MHz system
Wireless data transmission
Mobile communication
We can customize the antennas as per your requirements. And we supply wireless GSM, 3G, 4G and GPS modules from SIMCOM, Sierra, HUAWEI,ZTE,ublox, CINTERION, SKYLAB, Globalsat, Gtop, Gotop, etc.
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.
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.
Our service:
●7 years experience of C&T RF Antennas Inc. mainly manufactures outdoor antenna, indoor antenna, marine antenna, the base station antenna, and tv antenna products.
● Our sales will reply your inquiry within 24 working hours.
● Customized design is available, OEM is welcomed.
● Excellent after-sales service.
Warmly welcome customers come to negotiate, mutual benefit and common development!
Tag: 868 Mhz Antennas, 868Mhz antenna, 433 / 868 Mhz Lora antenna,
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