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The 80355A from Giga-tronics is a Power Sensor with Frequency 45 MHz to 18 GHz, Power Range +10 to +50 dBm Peak / 0 to +47 dBm CW, Max Input Power Peak: +53 dBm / CW: +47 dBm (50 W Average). More details for 80355A 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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