Chameleon RX Loop Pro 50kHz-30MHz

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Top Features

  • No manual tuning required
  • Reception spectrum 50kHz-30MHz continuous
  • For mast or tripod mounting as well as "desktop" operation
  • Loop diameter approx. 91 cm

The Chameleon RX Loop PRO is a newly designed high performance receive antenna for the frequency range of 50 khz - 30 MHz, which can be used permanently on an outdoor mast or camera tripod. The wide reception spectrum is ideal for Software Defined Radios (SDRs), panadapters, shortwave listeners (SWLs), and anyone who needs a small, low-noise antenna for reception purposes.

Loop antennas are very low noise and highly directional. With its built-in preamplifier, the Chameleon RX Loop PRO provides clearer reception than many large horizontal wire or vertical antennas. All frequencies between 50.0 KHz and 30.0 MHz are continuously covered.

Power is supplied via a "Bias-T", i.e. a remote feed crossover, which is looped into the antenna line.


Some of the key features of the Chameleon RX Loop PRO are: 

  • Wideband design - LF/ MF/ HF
  • Strong directivity
  • Balanced input preamplifier to eliminate ambient noise and ground loops
  • Flexible mounting and power supply options
  • Unobtrusive - Loop's navy gray color scheme does not shine and "disappears" against the sky


Amplifier Specifications:

  • Frequency: 50.0 KHz - 30.0 MHz continuous
  • Power supply: 12 V DC (120 V AC power supply included, USA only)
  • Size: 36"/94.1 cm (loop)
  • Weight: 3.2 kg
  • Mounting: Mast or camera tripod
  • Operating voltage: 12 - 14 VDC - polarity protected, overvoltage protection 15.5V - 20V (continuous voltage above 18V may damage the preamplifier)
  • Gain: At least 20dB + over all bands!
  • Noise figure: < 2 dB
  • P1dB: > 23dBm referred to the output
  • OIP2: > +90 dBm
  • OIP3: > +40 dBm
  • RF power applied to output: 0.25 W maximum (do not send to preamplifier)
  • Input Z: < 10 Ohm
  • Output Z: 50 Ohm


Specifications of the remote power supply crossover (Bias-T):

  • Operating voltage: 12 - 14 VDC - polarity protected, overvoltage protection 15.5V - 20V (sustained operation above 18V may blow the resettable fuse).
  • Maximum current: 300 mA max.
  • Insertion loss: < 0.25 dB at 30 MHz
  • VSWR: < 1.3:1 at 30 MHz


A coaxial cable with BNC connectors is required to connect the Bias-T to the loop antenna. We also offer the RX Loop Pro as a set with ready-to-use H-155 coaxial cable (length 10 m) and BNC connectors.

Technical Data
Product Name Chameleon RX Loop Pro 50kHz-30MHz
Brand Chameleon
Connector SO-239
Antenna Type Directional Antenna
Design of antenna Active Receive Antenna
Mono-/Multiband Multiband
Frequency Range 50 kHz - 30 MHz
Weatherproof Yes
Chameleon RX Loop Pro 50kHz-30MHz
Chameleon RX Loop Pro 50kHz-30MHz

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As low as: €725.90
incl. VAT, plus shipping €610.00

In stock, shipped in 1 to 2 days

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