Found out today that cable choice probably has caused the recent setbacks. Hypothesis: Antenna was coupling into badly isolated cable running through center of antenna. Causing spurious response.
We seem to maybe be back on track replacing with double shielded RG223; results seems predictable. But unfortunately frequency calibration needs to be repeated with new choke. Will reuse first prints #2-#5 instead of printing new ones.
Latest updates on choke QFA Antenna.
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