Simultaneous Wi-Fi and cellular connection [Update]

In coastal navigation, so often within range of a cellular network, you can download GRIB files, weather maps, or simply communicate with friends. But what if your smartphone or tablet is already connected to a multiplexer via Wi-Fi, or an NMEA gateway, without cutting off the data that powers our favorite navigation app ?

This is the tip of the summer…

[Update 25/09/2020] The trick in question depends on the iOS version used. Details in the article.

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3G/4G tethering [Update]

In coastal navigation, sometimes it's easier to connect to the 3G cellular network than to get a WiFi connection with a land-based hotspot. Cellular transmission antennas are becoming more and more numerous on the coast and on the islands. But as you follow my recommendations scrupulously (¹), I have no doubt about it, you have a WiFi+3G iPad without having taken out a subscription, i.e. without a SIM card, and you are quite right. So how do you do it ? Read more …

iPad , GPS and 3G cellular network subscription

I'm starting the year in a bad mood ! Unfortunately, I was able to see, through the experiences of many of you, ignorance, not to mention incompetence, many iPad sellers. Not only specializes supermarkets, but also among some Apple Certified Resellers ! This caused purchase errors during the Christmas holidays, and many disappointments. Read more …