urgentcomm » SMT

Measuring insertion loss of cavities

Published Wednesday, September 01, 1999

How much insertion loss is your cavity causing at the desired or pass frequency? How does a field technician measure the insertion loss without access to laboratory-type equipment or under field-test conditions? It can be done with reasonable accuracy using some basic methods. Recently, while surfing the Internet, I came across an interesting application note in the form of a "Tech-aid" called "Measuring Insertion Loss with Wattmeters" from TX RX Systems, Angola, NY. You can find it at www.txrx.com/f3c.html. With permission from TX RX Systems, the document from the Web site is presented here, with minor editing for ...

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