Reference STEALTHLOOP | CIRO MAZZONI

CIRO MAZZONI STEALH LOOP HF Continuous bands 10-12-15-17-20-30-40 m

The STEALTH Loop is a high-performance loop antenna designed for radio amateurs seeking a compact, robust solution with high-quality transmission and reception across a wide frequency range. Its advanced design allows continuous coverage from 6.6 to

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Description CIRO MAZZONI STEALTHLOOP

The STEALTH Loop is a high-performance loop antenna designed for radio amateurs seeking a compact, rugged solution with high-quality transmission and reception across a wide frequency range. Its advanced design allows continuous coverage from 6.6 to 29.8 MHz , offering precise SWR tuning with typical values of 1:1.3.

Thanks to its TIG (Tungsten Inert Gas) welded aluminum alloy construction, the STEALTH Loop is lightweight yet extremely weather-resistant, making it ideal for both fixed and portable installations. The use of stainless steel hardware ensures a long service life even in harsh weather conditions.

One of the great advantages of this antenna is its low noise and harmonics level , which provides cleaner and more stable signals. Furthermore, its tuning time is very fast (average 4 seconds, maximum 10), making it an agile tool for DX operators seeking efficiency. Despite its compact size, its design allows it to achieve performance comparable to much larger antennas, with a gain of just -4 dB at 7 MHz and -0.3 dB at 28 MHz compared to a half-wave dipole.

In terms of directivity, it offers a front-to-back ratio of 6 dB and a front-to-side ratio of 25 dB, improving the rejection of unwanted signals. All this with a continuous power handling of 125 W and a frequency-adjusted band response: 5 kHz to 7 MHz, 8 kHz to 14 MHz, 15 kHz to 21 MHz, and 25 kHz to 28 MHz.

CIRO MAZZONI STEALH LOOP HF Bandas continua 10-12-15-17-20-30-40 mts

Some of the features that the STEALTH Loop offers us are:

  • Continuous coverage: 6.6 – 29.8 MHz
  • Typical SWR: 1:1.3
  • Front-to-back ratio: 6 dB
  • Front-to-side ratio: 25 dB
  • 50 O input with gamma match and ESD protection
  • Noise and harmonics practically negligible
  • Tuning time: average 4 s, maximum 10 s
  • Maximum power: 125 W continuous (peak = continuous)
What does the STEALTH Loop include?
  • 1 STEALTH Loop Antenna
  • 1 Connection cable length 5 meters for ATU2
  • 1 ATU2 coupler
  • Stainless steel screws
  • Assembly manual and specifications

Mechanical characteristics

  • Frequency: 28-24-21-18-20-10-7 Mhz
  • Bands, 10-12-15-17-20-30-40 meters
  • Typical SWR: 1:1.3
  • Front-to-back ratio: 6 dB
  • Front-to-side ratio: 25 dB
  • Entry: 50 O with gamma match
  • Integrated ESD protection
  • Low noise level
  • Negligible harmonics
  • Tuning: 4 s average
  • Max power: 125 W continuous
  • Bandwidth: 5 kHz @ 7 MHz
  • Bandwidth: 8 kHz @ 14 MHz
  • Bandwidth: 15 kHz @ 21 MHz
  • Bandwidth: 25 kHz @ 28 MHz
  • Gain: –4 dB @ 7 MHz
  • Gain: –0.3 dB @ 28 MHz
  • Construction: 60/60 aluminum
  • Professional TIG welding
  • Stainless steel screws
  • Dimensions: 1370 × 500 × 260 mm
  • Net weight: 10 kg
  • Gross weight: 15 kg
  • Use: fixed or portable
  • Easy assembly
  • PL female antenna connector
  • Guaranteed durability outdoors