MOBILE PHONE SIGNAL BOOSTERS & ROUTERS
If you regularly cruise or anchor outside the range of a wi-fi hotspot, but within 10-15nm of the coast, then you’ll need a GSM (3G) or LTE (4G) device to send/receive data and make/receive phone calls. Some prefer to use a cellular network even when they’re within range of a hotspot as nowadays competitive deals can be had on airtime and often the connection is faster and more dependable.
Saying that, you’ll most likely still need some form of external high-gain antenna if you want to ensure enough data speed and bandwidth for reliable streaming and down/uploading. If all you want to do is send and receive email and make a few calls, then the slower 3G GSM network is more than adequate. But for data streaming, 4G LTE is pretty much essential. A
