hat
Si ou gen yon reseptè kourt oswa segondè frekans-oswa scanner ki se difikilte yo pran siyal ak yon antèn ti bout tan, fwe, ak ou ta renmen ki kalite pèfòmans ki antèn yon 60-pye 'longwire' ka bay men manke espas ki la mete yon kanpe,, konsidere bilding lan AA-7 HF / VHF / UHF aktif Antèn ki dekri nan atik sa a. AA-7 la se yon antèn relativman senp ki se fèt yo developed siyal yo nan 3 3000 megaèrts, ki gen ladan twa chenn rekonèt: 3-30Mhz-wo frekans (f) siyal; 3-300Mhz trè-segondè frekans (VHF) siyal; 300 -3000MHz ultra-segondè (UHF) frekans siyal. Moun sa yo ki Gwoup Mizik yo, se tipikman okipe pa kourt, Kam, gouvènman an, ak siyal radyo komèsyal yo.
eng
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.