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Antenna/Network Analyzer
Has anyone here built a GOOD antenna/network analyzer?
From what I can determine, the MFJ stuff doesn't resolve the sign of reactances, nor does it have a computer interface. I was looking at Analog Devices' AD8302 IC (http://www.analog.com) for this application. This is a single-chip device that measures the gain and phase difference between 2 RF inputs up to 2.7 GHZ with very high accuracy. It occurred to me that this chip, together with a PIC that has A-D conversion, and a computer-controlled station transceiver, could form the basis for a very nice programmable antenna/network analyzer that would run rings around the MFJ units. Comments? Joe W3JDR |
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