I frequently take international trips which mean I’m switching out the SIM card in my phone a lot. I’m an iPhone 6 user and Apple is kind enough to give a liquid metal SIM eject tool with each unit that makes popping your SIM card tray open a snap.

N-type connector performance The connector has a threaded coupling interface to ensure that it mates correctly to provide the optimum performance. Two versions are available: • 50 ohm • 75 ohm The two versions of the N-type connector have subtle mechanical differences that do not allow the two types to mate. This can be an advantage in preventing the wrong standard connectors being used by mistake.

On a circuit board, the equivalent to coax is a trace that runs over a ground plane (ground plane on the backside). The above are examples of transmission lines, whose purpose is to efficiently transfer power from one place to another with minimum loss.

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The length of the antenna should be measured from the point where it leaves close proximity to ground, or from the transmitter output. If a whip is mounted on a box, and connected to the transmitter with plain wire, that wire becomes part of the antenna. To avoid tuning the antenna improperly, coaxial cable should be used to connect to an external antenna