ON7UN Amateur Radio
ON7UN EME
 Coupler Calibration
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More on the mechanical modifications of the coupler, this is the link to Walter's website We made some measurements on the outcoupling, and adjusted to - 40 dB.

power_measurement_005.jpg (50327 bytes)           

power_measurement_011.jpg (50741 bytes)              

power_measurement_012.jpg (55175 bytes)

Used in combination with my Bird 5 kW dummy load, we have a fine instrument to measure spectrum and power

 

 

 
 

 

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