Helped a friend install this antenne on his 47' Vagabond's mizzin mast (Looks like a 4' VHF). USBAdapter is a WiFi booster and software. My PC hardly connected, sitting down below, with my Dell built in WiFi, to the Marina's Free WiFi. His new system connected and stayed at 38 - 54 Mbs, plus picked up over a dozen other connectins within the 5000 - 6000 ft range.
Buy Wireless antenna,WiFi Antenna,2.4Ghz 5Ghz Wlan Antenna,RF connector,RF pigtail cable,Lightning Protector,802.11 a/b/g, Omni ,panel ,yagi ,Grid antenna
12 meter cable : 1000mW USB adapter + OMNI 15dBi + Lightning Protector + 12m/40ft
Reference Distance around 5100~6000 feet
Original price was $179.35, now is $167.80