Posted on Wednesday, April 9, 2008 • Category:
Antennas
If you have a shortwave or high-frequency receiver or scanner that is struggling to capture signals with a short, whip antenna, and you'd like the kind of performance that a 60-foot 'longwire' antenna can provide but lack the space to put one up, consider building the AA-7 HF/VHF/UHF Active Antenna described in this article. The AA-7 is a relatively simple antenna that is designed to amplify signals from 3 to 3000 MegaHertz, including three recognized ranges: 3-30Mhz high-frequency (HF) signals; 3-300Mhz very-high frequency (VHF) signals; 300-3000MHz ultra-high (UHF) frequency signals. Those bands are typically occupied by shortwave, ham, government, and commercial radio signals.
Active FM Antenna Booster FM Antenna Booster Portable Yagi for 144MHz Active Antenna AA-7 HF/VHF/UHF, 3-3000MHz Active Antenna 88-108Mhz FM Preamplifier Yagi Antenna Simple Dipole Antenna Folded Dipole Antenna Build A 9 dB, 70cm, Collinear Antenna From CoaxCircuit-Zone.com © 2007-2026. All Rights Reserved.
