The small loop antenna (hfdloop) is a small-size full-band ring magnetic field active receiving antenna, receiving frequency range of 50kHz to 500MHz, mainly consists of the top jumper board, small loop amplifier board, small loop coil, feeder, feed line and 12V linear power supply, which there are several sets of switches on the top jumper board and the small loop amplifier board, and the switch position can be adjusted to achieve the small loop antenna of different structures. The Möbius ring can achieve twice the voltage gain of a normal small ring; the electric field shielding ring can effectively reduce the interference caused by the electric field of the surrounding environment, such as lightning, electrostatic discharge, etc.; the structure of the unshielded ring is simple, and the small ring as a whole can be replaced by a thicker wire, the size of the modification of a simple, easy to set up.

Small ring antenna technical indicators:

Receiving frequency range: 50kHz to 500MHz

Gain: 17dB@10MHz

Output noise: -125dBm(@10MHz, BW=100Hz)

P1dB: +15.5dBm@10MHz

OIP3: +38dBm@10MHz

Supply voltage: 9V to 12V

Supply current: 130mA to 150mA

Antenna Interface: SMA(M)

Output Connector: SMA(F)

Small ring coaxial cable model: RG402

Small ring coaxial cable loss: 0.145dB/m

Small loop antenna diameter: 60cm

Package Includes:

1*small loop antenna amplifier board.

1*headphone jack adapter cable.

1*Top Patch Panel

2*Small loop coil (RG402 coaxial cable)

1*7 metre feeder cable

1*1 metre feeder cable

2*Sticky Hooks

1*EVA storage bag