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SiriusHardware · 2nd Jun 2019, 10:05 am

Since an endfed (half wave?) normally has a matching coil at the base of the antenna, my guess is that the PCB incorporates the matching circuit either as discrete components or as a 'printed circuit' coil. Coax from the transmitter going in at one side of the PCB, and a half wavelength wire coming out of the other.

I have an example of exactly this sort of portable end-fed half wave antenna with a printed circuit matching coil, but for 27MHz rather than 145Mhz.

Unfortunately I can't help the OP with his search for the 2m version.

2nd Jun 2019, 10:05 am	#3
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,553	Re: 2MTR Endfed PCB Since an endfed (half wave?) normally has a matching coil at the base of the antenna, my guess is that the PCB incorporates the matching circuit either as discrete components or as a 'printed circuit' coil. Coax from the transmitter going in at one side of the PCB, and a half wavelength wire coming out of the other. I have an example of exactly this sort of portable end-fed half wave antenna with a printed circuit matching coil, but for 27MHz rather than 145Mhz. Unfortunately I can't help the OP with his search for the 2m version.