You Should Choose This Kit If You need an all-in-one kit that can boost the 2G and 3G networks from most carriers to multiple phones and data devices simultaneously in your RV or other large vehicle.   This kit comes with an NMO-Mount roof antenna that generally requires professional installation.  If you prefer to install the system yourself, check out our other RV Signal Booster Kit.   Will This Work For Me? The Wilson 841295 RV & Ambulance Signal Booster Kit is a powerful signal booster system designed for use in an RV, Motorhome, 5th Wheel, Bus, and other large vehicles including emergency vehicles like Fire Trucks and Ambulances. It will boost the signal for multiple phones and data devices at the same time.  When there is a medium strength outside signal, you'll be able to use your phone anywhere in the vehicle.  In areas where the existing outside signal is very weak, your phone or data device will have to stay within 5 to 7 feet from the inside antenna to receive the boosted signal. The Wilson RV Kit improves the signals used for both voice calls and Internet access. In areas with a weak signal, the Wilson RV Kit will reduce dropped calls, improve call clarity and increase Internet data speeds. Supported Carriers All carriers that use the standard dual band frequencies (800 MHz & 1900 MHz) for voice and 3G data, including: AT&T 2G/3G/4G HSPA+ (shows as 4G on your phone) Verizon 2G/3G Sprint 2G/3G US Cellular 2G/3G Alltel 2G/3G T-Mobile 2G only in most locations Major Canadian Carriers 2G/3G All other carriers using 800 MHz and 1900 MHz Will not boost 4G LTE for any carrier Included Items 801245 - AG SOHO 60 dB Dual-Band Amplifier 301104 - Dual Band NMO Mount Antenna 901102 - 3/4" NMO Mount with 14' RG58U Coax Cable 301135 - Wide-Band Panel Antenna with N-Female Connector 951104 - 20' RG58U Low Loss Coax Cable with N-Male to FME-Female Connectors 859912 - AC to DC 6V Power Supply Installation manual This kit comes with an AC power supply.  The Wilson 859913 DC Power Supply is available separately. Installation Overview The NMO-Mount outside antenna typically requires professional installation because a hole must be drilled through the roof of a vehcile.  If you aren't familer with an NMO mount installation, call your local RV dealer and see if they can install the system for you.  If you are comfortable with an NMO-Mount installation, simply follow these steps. Mount the outside antenna on the roof of the vehicle using the included 3/4" NMO Mount cable. Run the cable to the location where you plan to mount the amplifier and connect it to the Outside port on the AG SOHO 60 Amplifier. Connect the included 20 ft. cable to the Inside port on the amplifier and connect the other end of the cable to the inside panel antenna. Mount the panel antenna so that it is facing away from the outside antenna. Using either the included AC or DC power supply, plug in the amplifier to power up the system. If after plugging in the amplifier, you see 2 green lights, that means that the system is working correctly so you can use your phone like you always do. If you see one or two red lights, it means there's feedback in the system. To fix, increase the separation between the inside and outside antennas, ensure that the inside antenna is not facing the outside antenna, or turn down the gain control on the affected frequency until the red light turns green. If you see an orange/amber light, that means the outside signal from one of the nearby carriers is too strong, so you either have to turn down the gain controls or if you have a strong enough signal already, turn off the signal booster until you get to an area where you need it.