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Vodafone in Germany provides Cable Internet at high speeds (formerly Kabel Deutschland). Currently at Docsis 3.0 (working towards 3.1) with 100, 200 and 400 Mbps data rates. Unless DSL providers go with FTTH, there is no DSL technology available to match those speeds. See the speedtest arrow going up well over 150 Mbps (on a 200Mbps plan) in a downtown Berlin location is pretty cool. Vodafone have implemented Dual-Stack Lite (aka DS-lite). DS-Lite is a way to provide the CPE with an ipv4 address when on an all ipv6 (access) network. Since ipv4 address are somewhat limited in availability (…) this is a good choiceRead More →

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Driver Install. The SiLabs CP210x USB to UART (Serial Port) bridge chip inside the IC-7300 needs a driver. This driver is automatically installed when on Win8.1 or Win10. No need to install the Icom supplied driver. The Audio CODEC inside the IC-7300 does not requires a separate driver install. It is so-called class-compliant. There is nothing Icom specific in the USB part of the IC-7300. Actually, when you analyze the schematics, you’ll see that the build-in interface does not differ from most external interfaces: the decoded analog audio is actually converted to digital again in the USB Audio CODEC. From a practical point of view,Read More →

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For powering an USB device in your car, you need a 12V car adapter. Such an adapter plugs into the cigarette lighter socket and provides an USB socket. You also have to specify the current, since USB by default provides 0,5A but for charging purposes can deliver up to 2,1A. Then you have a clear functional description. I have an Anker adapter and one from Huawei which came with my Huawei E8278 LTE stick. Both adapters deliver sufficient current, so from a functional point of view, both adapters are equal. Unfortunately one works fine, the other one not. Here engineering comes into play. Your car does notRead More →

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“Using a remote desktop program from Google”: that sounds unsafe. But why should I trust for example TeamViewer more. At least Google Remote Desktop is much more streamlined; I don’t need those “Team” functionalities. Both TeamViewer and Google Remote Desktop use UDP hole punching in order to traverse your NAT in the “wrong” direction. That’s actually proving the statement that a NAT router (such as the one that connects your home network to the internet) is not a firewall. Therefor my remote machine sleeps, and I have to wake her by logging in with ssh (using certificates of course) which triggers the bonjour sleep-proxy on myRead More →