Product

Product Overview

VHF antenna, whose operating frequency is the same as that of VHF radio station, is used for VHF radio station to receive and transmit radio frequency signals.

Product Characteristics

1. Frequency range: 118-137MHz.

2. Output power: ≤1000 watts.

3. Gain: 2.15dBi.

4. Bandwidth: 19MHz.

5. Impedance: 50 ohms.

6. VSWR: ≤ 1.5.

7. Polarization mode: vertical.

8. Connector: N-type female.

9. Length: 0.9m.

10. Weight: 1.3Kg.

11. material: aluminum alloy.

The antenna is equipped with three aluminum struts, which are part of the VHF antenna transmitting RF signals. If this part is not installed, the VHF antenna has a very high voltage standing wave ratio (or return loss) and cannot work normally.

VSWR vs. Frequency

Application Case

The height of the antenna bracket is about 1.5m (the height of the antenna bracket can be adjusted according to the actual application scenario), and a stainless steel pipe (60cm long and 6cm in diameter) needs to be configured to support the VHF antenna.

VHF antenna installation method is shown in the figure below.