WiNRADiO AX-71C Discone Antenna

WiNRADiO AX-71C Discone Antenna

The AX-71C antenna is a compact VHF/UHF omni-directional receiving and transmitting antenna for professional and consumer surveillance and monitoring applications.

The antenna covers the frequency range of 25 to 1500 MHz, offering a typical VSWR figure of less than 1.5:1.

While designed to be entirely general-purpose, the AX-71C Wideband Discone Antenna is especially suitable for the WiNRADiO range of VHF/UHF receivers.

The principal elements of the antenna are constructed of austenitic stainless steel, 303 grade. Austenitic (chromium and nickel content) stainless steels have high ductility (i.e. ability of a metal to plastically deform without breaking or fracturing), low yield stress and high ultimate tensile strength, when compared to a typical carbon steel. They also feature very good corrosion resistance.

The choice of materials and the durable construction of the AX-71C antenna will ensure trouble-free operation for many years.

The antenna was designed for rapid assembly, with easy-to-follow assembly procedure supplied with the antenna.


Clamps for AX-71C antenna Mast mounting clamps are not supplied as standard, and can be ordered as a separate option. The ordering code for a complete set of two of these heavy-duty galvanized mounting clamps is WR-AC-MC-01.

Suitable coaxial cable can be ordered in required lengths. It comes with a UHF connector on one end, and a BNC connector on the other end. The ordering code is WR-AC-UHF/BNC-RG58.

This antenna is suitable for the following WiNRADiO receivers:

 WiNRADiO WR-G305i
 WiNRADiO WR-G305e
 WiNRADiO WR-G315i
 WiNRADiO WR-G315e

Technical Specifications
Type Wide-band discone RX/TX antenna
Frequency range 25 - 1500 MHz
Gain 2.4 dBi typ. (VHF/UHF bands)
Impedance 50 ohm
Max transmitting power 300 W
VSWR 1.5 : 1
Connector UHF
Operating temperature -30 to 60C
Mounting tube diameter 25 mm (1")
Mounting tube length 600 mm (23.5")
Length of sloping radials 820 mm (32.5")
Length of horizontal radials 280 mm (11")
Overall height 1585 mm (62")
Weight 1.3 kg (3 lb)

Specifications are subject to change without notice due to continuous product development and improvement.

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