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Ham radio inline field strength indicator
The Model 823-126 is a handy, compact device for the amateur radio station checking transmitters operation. It uses the bridge method of comparing the power supplied to and reflected from the antenna system . The operation is simple, and accurate matching of the transmitter antenna can be done quickly. Continue monitoring the transmitter output is possible by having the instrument in the circuit at all times. It can be used as a simple field strength meter by disconnecting it from the feed line and attaching the small pickup antenna.
I found this at a yard sale years ago and it's been in my tool box since It appears never to have been used still in the original box with instruction booklet and antenna. Thanks, Have a nice day!!
