One of the causes of very slow internet could be that your modem is only picking up the older 2G signal. This can usually be identified in your connection manager software by the appearance of words such as GSM, GPRS, EDGE, which all are 2G signals. Also the indicator lights on the modem can tell you eg with most Huawei modems it is a green light for 2G instead of a blue light for 3G – you need to read your modem manual to find out the meaning of the colours. Faster internet (often 10 times or more) comes with 3G and 4G signal eg words such as WCDMA, HSDPA, HSPA, LTE. In most locations our antenna will enable you to pickup the 3G signal, instead of the 2G – but there are some rural areas where only 2G is available. The carriers publish coverage maps on their websites that you can use to determine if you are in a 2G or 3G area.
Traditional sailboats are monohulls , but multi-hull catamarans and trimarans are gaining popularity. Monohull boats generally rely on ballast for stability and usually are displacement hulls. This stabilizing ballast can, in boats designed for racing, be as much as 50% of the weight of the boat, but is generally around 30%. It creates two problems; one, it gives the monohull tremendous inertia, making it less maneuverable and reducing its acceleration. Secondly, unless it has been built with buoyant foam or air tanks, if a monohull fills with water, it will sink.