Micrel Prototype Radio

One of the current projects is to build a radio module to be a replacement for the excellent, but large and expensive, Radiometrix NTX2. A first prototype uses the Micrel MICRF112 10mW FSK transmitter with a varactor controlled crystal pulling arrangement. An onboard variable capacitor also allows tuning of the centre frequency to anywhere in …

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Nova 18 Launch

Today saw the launch of Nova 18, carrying the Squirrel smartphone and the Ferret Arduino tracker. Ferret has had some bugfixes since its last flight and seemed to perform much better this time. The Squirrel smartphone was running a custom app called SquirrelPhoto enabling it to take pictures at set intervals. Unfortunately the software crashed …

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