
Indoor Antennas:
The classic Booster Antenna (right) is by far the most popular EVDO antenna sold at Booster-Antenna.com. It is perfect for users who get 1-3 signal bars (if you're already getting 4 bars it won't improve the signal significantly; if you are getting NO signal it will also not help). Customers have reported increases


Both the Omnidirectional and Yagi antennas are mountable, outdoor-use antennas; they are not portable like the booster and the mag-mount. The omnidirectional antennas work for structures, boats and cars/trucks/RVs. The yagi antennas are generally only used for static mounting on structures, though some die-hard RV'ers don't mind the setup and enjoy the benefits where the have good line of site. The best external omni dual-band antenna (right) tested so far is the one we carry -we wouldn't carry it if it wasn't the best. In all but one case (marine omni) the Omni External Antenna surpassed the performance of all other outdoor omni antennas by a notable margin (the other antennas could not connect to the nearby EVDO network, even with an EVDO-locked card, and when in 1xRTT-only mode had much lower signal levels and higher latency). Runner up was a dual-band marine omni (which costs nearly twice as much). After repeated tests the marine omni came in 2nd place because of 30-45% lower upload rates (with and without a signal amplifier). For marine environments the dual-band marine omni would be a good choice though, due to the sealed enclosure which eliminates salt corrosion on the antenna element and resulting loss of power.
Unlike the Omnidirectional antennas, which pull in the signal from all directions and do not have to be directed towards a particular tower, Yagi antennas only work if you have unobstructed pathways to the tower you're connecting to. Do not buy one unless you are certain you have a clear "view" of the tower! You might get lucky blowing through a narrow line of tall leafless trees, but you really ought to be clear of anything. Once those trees have leaves, moisture or snow on them your conditions will change drastically. That said, the best yagi antennas tested so far are the Wilson Cellular yagis tuned for 'cellular'/800MHz or 'PCS'/1900MHz. Runners-up were the Digital Antenna yagis, also tuned to 800MHz or 1900MHz.
In addition to the Booster, Mag-Mount and Omni antennas, Booster-Antenna.com also sells a signal amplifier for people in serious need of signal improvement. Check out the antennas and amplifiers here, and make sure to check out the discussion at the forums!