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QRP Power Meter
30-500 MHz, 500 milliwatt full scale. Tested OK down to 1.9 MHz, reads about 10% low at 7 MHz. Below 7 MHz reads a bit lower. With an external attenuator (not included) you can extend the range to 5 Watts, 50 Watts, 500 Watts, etc (the external attenuator dissipates the excess energy). Used in good condition. BNC input. Internal 50 Ohm load for up to 500 mW.