Active Antennas for 2009Juicy programs aren’t aired only in the evening, when scripts can be tailored for your region. Increas-ingly, “off beam”
A C T I V E A N T E N N A S 1 7 7What’s not to like? An ordering procedure that’s inconvenient and démodé. There are no dealers outside the United
A C T I V E A N T E N N A S 1 6 9So if you lack acreage, face community restrictions or are allergic to high-wire gymnastics, consider an active a
1 7 0 P A S S P O R T T O W O R L D B A N D R A D I Ousually from the front panel’s digital display. With these, a proximate antenna should be placed
A C T I V E A N T E N N A S 1 7 1PASSPORT reports on the first and gives tips on the third. Yet, much depends on the second: local conditions. Yo
1 7 2 P A S S P O R T T O W O R L D B A N D R A D I Osusceptible to inductive pickup of local thunderstorm static, our antenna’s ampli-fier has not suf
A C T I V E A N T E N N A S 1 7 3Greater size impacts performance, too. The loop receiving element’s length that we chose provides full-wave reson
1 7 4 P A S S P O R T T O W O R L D B A N D R A D I OCons: Lower gain than ALA 100 within shortwave spectrum above 5 MHz or so; dif-ferences range fro
A C T I V E A N T E N N A S 1 7 5**** Passport’s ChoiceWellbrook ALA 330SOutdoor-indoor loop. Active, remote, broadband, 2.3–30 MHzPricing: ALA 3
1 7 6 P A S S P O R T T O W O R L D B A N D R A D I Owinds until the locally procured pipe cou-pling to which we had attached the antenna snapped. Man
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