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#QMX Spectrum analyzer data #qmx


 

I've obtained some spectrum analyser images of the output from my QMX running at 12.5V.? This is in preparation for fitting Zeners so we can check before and after.? This is the before.

Is this the information that we need to check the performance? I'm not an expert at this and would appreciate knowing if more data is needed.? I don't intend to keep soldering and unsoldering Zeners.

I'm running the QMX into a home made 38.7 dB 8W 50 ohm attenuator (4 x 51R 2W SMDs arranged 2x2, then a 2k2, then 2x100R SMDs).? I've a 10W 20dB attenuator coming.

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