John, Gerald
Thanks for your replies. Yes the SWR measurement shows a lack of inductance at 3.6 MHz. My antenna runs from 7 MHz, so it’s ok I think. I have not done a back to back measurement to determine the power loss yet, but there will probably be more experiments.
Thanks also for the info on the FB group. I will check. There was nothing to be found on the reflector.
73, Peter