Ifyou have to use external antennas then it is wise to use two. Technically that is not as simple. It depends on on how many bands you have available and how many streams. With 2x2 Mimo it means that one band has two streams. Depending on current air radio condition each stream has CQI which affect stream modulation which directly affects SIMPLEDIY INSTALLATION - Eliminating poor in-building signal with the U65C can be done in a few simple steps: install the outdoor Yagi antenna where you receive the best signal, aim it at your closest cell tower for optimal results, connect it to the U65C amplifier via coaxial cable, connect the indoor whip antenna to the amplifier, and InStock - We Usually Ship This Item In 1-2 Days. MSRP: $11.99. NOW ONLY: $9.95. Add to Cart. Get A Better Cellular Signal With Antennas And Signal Boosters For The Netcomm ATT Wireless Internet Device Model IFWA-40. We Offer A Variety of Options To Better The Cellular 4G Signal To ATT Wireless Internet Devices. Wideband omni-directional 75 Ohm antenna with F-Female connector designed for use with SureCall in-building cell phone signal boosters. F-Female connector 2-3 dBi / 3-4 dBi gain 75 Ohm Wide band: 2G, 3G & 4G LTE (698 - 2700 MHz) Includes Themonopole is often used as a resonant antenna. The rod functions as an open resonator for radio waves and oscillates with standing waves of voltage and current along its length. The length of the antenna, therefore, is determined based on the wavelength of the desired radio waves. The most common form is the quarter-wave monopole, in which Inits simplest form, the Uda "beam" antenna is a 2-element antenna. It has a single radiating element that is "driven", i.e., is connected to a transmitter (or receiver, or transceiver), and a single passive element. The latter is not driven. Typically, the driven element is a simple standard 1/2 wavelength resonant dipole. HFMagnetic Loop Antennas -- By Wolfgang DJ3TZ -- From HB9ABX Magnetic Loop Antenna's Magnetic Loop Antenna 10-30 Mhz Microwave Antenna HandBook -- From W1GHZ Mobile Dual Band VHF/UHF Antenna -- Homebrew Project from VE3RGWBy HB9ABX 10-80m MOBILE HF MULTIBAND ANTENNA PROJECT - From Mark D. Lowell, N1LO -- 17M and 20M Via KD6WD. 30M - 6M -- From TheFlare has two parts, rather than three for some other boosters. The $379.99 Flare 3.0 comes with a long, directional antenna that you need to point toward the relevant tower, along with some mv3B.