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TEST Digital RF Wattmeter with LC Display - …
TEST&MEASUREMENT. Digital RF Wattmeter with LC Display for 1 kHz to 1 GHz Design by Thomas Scherrer OZ2 CPU Any radio amateur knows the importance of an accurate RF power meter. A Wattmeter can be used to measure gain in amplifiers, bandwidth in filters, field strength from antennas, transmitter power, SWR, return loss and many other things. 16 Elektor Electronics 10/2002. TEST&MEASUREMENT. engineers are conversant with the dBm unit, Specifications others prefer watts' and still others like to talk about RMS voltage'. This meter displays Frequency coverage: 1 kHz to 500 MHz (calibrated) all three units at the same 1 kHz to 1000 MHz (uncalibrated, for relative power measurements only). Nominal input impedance: 50 About the AD8307. Input power range: 60 dBm to +30 dBm (1 nanowatt to 1 watt). The AD8307 monolithic logarithmic amplifier Input power range using 50-dB attenuator: up to 100 kwatts. from Analog Devices was first described in Dynamic range: 90 dB with good RF shielded case.
TEST&MEASUREMENT 16 Elektor Electronics 10/2002 Digital RF Wattmeter with LC Display for 1 kHz to 1 GHz Design by Thomas Scherrer OZ2CPU www.webx.dk Any radio amateur knows the importance of an accurate RF power meter.
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