Why don't you use a REAL spectrum analyzer, like an Agilent or
Rohde Schwarz?
Don in Texas, N5CID
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On
4/16/2025 10:35 PM, Ron, N6YWU via groups.io wrote:
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Reducing the zBitx Drive
via its menu did seem to reduce the spurs relative to the
carrier, but not by quite enough. ?I reduced the drive
until the TinySA was showing the carrier at -40 dB (that's
12 dB lower than my earlier test with the same attenuation
chain), but the high side spur didn't quite make it below
-80 dB. ?The low side spur did.
73, Ron, n6ywu
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