QCX 20M serial 3647 is alive!


Alan G3XAQ
 

I just finished assembling my QCX. I've had it the best part of a week so I'll not be winning any prizes for speed of construction. I did replace the suspect 390pF capacitors in the LPF with Murata SMD types. Anyway, big sigh of relief, it worked on power up with no obvious faults. It hears down to about -125dBm and produces 3W output from a 13.8V DC supply. The second harmonic is -54dBc. I believe some builders see 3.5W and hear -130dBm but I am happy enough with my results.

Thanks for a great kit, Hans.

73, Alan G3XAQ

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