First run unit does nicely in this test
73
-Jim
NU0C
On Tue, 19 Jan 2021 23:53:00 -0800
"Erik Kaashoek" <erik@...> wrote:
New FW released
Version v1.1-77
Changes:
- MEASURE/MORE/LINEAR added
The linearity test requires an input signal between -40dB and -25dB and a single marker positioned on that signal.
Activating the linearity test will step the built-in attenuator through all attenuation values and draw a green line on the screen at the measured signal level.
If all goes well the line should be flat within +/- 1dB with an occasional measurement deviating due to interference/noise
The test also helps in getting confidence about the 1dB compression point of the tinySA. This can be measured by applying a signal of 0dB and activating the MEASURE/MORE/LINEAR test
The compression starts when attenuation is below 5dB and is visible in the green line being curved down a bit at the right side.
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For more info on the tinySA go to
Jim Shorney
