Thanks for the pictures. It does look like it was made (OEM) for the bike. I'm getting one.

You can compare how well each antenna works by swapping WHEN the radio is on. There's no electrical risk to a receiver when you remove and install an antenna. I park my F6B in the garage with a metal roof and get bad reception. It gets better when I touch "either" antenna and better when I install the longer antenna, vs the shorter OEM.