Comparing tuners.

Leif Asbrink leif at sm5bsz.com
Wed Aug 14 12:00:51 UTC 2013


Hi All,

The rtlsdr dongles come with different tuner chips.
Have a look at this video:
http://www.youtube.com/watch?v=cVU5X1d2XYU

Four dongles are run simultaneously with the same input
signal. A seven port resistive combiner is used to combine
a noise source, a signal generator and a sweep generator
and to distribute the combined signal to the four dongles.

The screen shows three instances of SDRsharp running the 
three tuners plur one instance of Linrad with the E4000
tuner for which Linrad allows a different gain distribution
that provides a much better suppression of false signals.

The Linrad screen is pixel-oriented so the video should
be looked at with high quality.

Regards

Leif / SM5BSZ




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