Re: 70cm reflectometer?

Owen Duffy wrote:
Operation of a diode detector in the square law region isn't out of the question, but it takes some serious gain to drive a meter. There are some good chopper stabilised op amps out there that have uV offset levels and single supply rail and input to below the negative rail eg LTC1050.

If the diode is DC-biased and the bias subtracted out
during calibration, doesn't that improve the low power
accuracy considerably?
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73, Cecil http://www.w5dxp.com
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