WiNRADiO AX-37E Planar Log-Periodic Antenna

AX-37E antenna

The AX-37E antenna is a compact, planar log-periodic UHF directional antenna with an in-built 20 dB low-noise amplifier. The antenna is suitable for wireless networking and point-to-point communications where its directional characteristics can significantly improve rejection of interfering signals, as well as for monitoring and surveillance applications.

The AX-37E antenna is encapsulated in a ruggedized weather-proof enclosure suitable for permanent outdoor installations.

The antenna covers a frequency range of 300 to 3000 MHz (a much wider frequency range can be received with reduced gain).

While designed to be entirely general-purpose and performing well with any third-party equipment, the WiNRADiO AX-37E planar log-periodic antenna is especially suitable for WiNRADiO 3000 Series of receivers, such as the WR-3700e receiver.

Technical Specifications
Type Log-periodic dipole array with amplifier
Frequency range 300 to 3000 MHz
Antenna Forward Gain 6.0 dBi (free space)
Amplifier Gain 20 dB
Amplifier Noise Figure 2.0 dB
Amplifier IP3 +26 dBm
Primary Sensitivity E-field
Polarization Horizontal or vertical (depending on mounting)
Usage Receiving only
Impedance 50 ohm (typ.)
Power 12Vdc @ 65mA (via coaxial cable)
Connector SMA
Front-to-back ratio 16dB min (180 degrees from main lobe)
VSWR 1.4:1
Size 291 x 213 mm (approx. 11.5" x 8.4")
Weight 1180 g (2.6 lb)


1. A version without the inbuilt amplifier is also available, ordering code AX-37EN.
This may be also used for low power transmitting purposes.

2. Specifications are subject to change without notice.

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