JIMMY0311

Hi Martin,

Due to the tight and solid structure of 303wa-2, it is almost impossible for me to get any answers without using a machine tool to disassemble the working part.

I once referred to the exploration by several Japanese radio enthusiasts, hoping to understand its design principle, but the results are still confusing. The initial consideration for the design of this antenna seems to be that it must connect a coaxial of at least 10m long, but when measuring such a whole, the relationship between its impedance and frequency is oscillating. At this point, I felt that has exceeded the boundary of my knowledge. It is best for me to read relevant books first.

The analysis circuit you provided here is truly the closest answer I have ever seen to this antenna.

Best regards,

Jimmy