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T-antennas BetaFPV 915MHz/868MHz

Price:146 uah with VATPrice in USD:3.50

Bonuses will be issued for this product upon purchase

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Brand: BetaFPVSKU 16372

• 46мм
• 80мм

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Description

Dipole omnidirectional T-shaped antennas designed and manufactured by BetaFPV for 915MHz / 868MHz receivers. The RF antenna balun circuit is protected by a plastic housing and rubberized heat shrink. During production, each antenna element is tested with a frequency spectrograph to ensure that the antenna works correctly.

Features

• Frequency: 915MHz/868MHz
• Gain: 2dBi
• VSWR: <1.6
• Coaxial cable length: 46mm / 80mm
• Connector: UFL/IPEX1 MHF
• Weight:
  • 46mm: 0.94g
  • 80mm: 1.6г

Which antenna should I choose? Are these antennas compatible with other receivers such as FrSky or TBS?

• First of all, BetaFPV T-antennas are compatible with any receiver with a UFL/IPEX1 MHF connector. In addition to the connector, the frequency of the receiver must be considered, as a 2.4G antenna will not work with a 915MHz receiver. Externally the antennas look almost identical, but internally the balun circuitry is different, so the antennas will have completely different characteristics at the wrong frequency point.
• Second, the shorter antenna is designed just right for smaller drones. If you expect broadband performance, we highly recommend the longer version.

The BetaFPV dipole T-antenna is omnidirectional. Below is a 3-D image of the antenna's radiation pattern.

What is an RF balun and why is it used in these dipole T-antennas?

In order for symmetrical antennas to be fed over coaxial cable, an antenna balun is often included at the feed point. A balun is an electrical device that converts a symmetrical signal to an asymmetrical signal or feedline.

For a dipole T-antenna, the RF balun (symmetry circuitry) is in a molded case. There is a corresponding balun circuit for different antennas.

Photos