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The 80304A from Giga-tronics is a Power Sensor with Frequency 10 MHz to 40 GHz, Power Range -70 dBm to 0 dBm, Max Input Power +23 dBm (200 mW). More details for 80304A can be seen below.
TVAC compliant USB and LAN Power Sensor
10 MHz to 8 GHz Three-path Diode Power Sensors
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