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dB to indicate loss as compared to the reference test. We expect a negative value close to 0.
Anything better than 3 dB of loss is passing.
1 – Referencing of the Test/Jumper Cables 2 – Connecting to System under test
There are many Power Meters that could be used for this test. The one shown above is the MP-60A Power
Meter plugged into the ONA-800. It is screen-less device with a USB connection to be plugged into a ONA-
800 (display shown on left) in these illustrations. Both examples are passing because the result is that the
loss is less than 3dB. Read that as NOT more negative than 3dB.
1
2
