In order to switch from the ND1 type (owned for 5 years) to the 990S, we decided to install a helical short antenna.
The ND1 type was equipped with a super-shout antenna G-TECH from another company's genuine S2000, but the 990S is almost audioless and the frequency of radio viewing increases, so I chose AutoExe, which seems to have good sensitivity. ..
It is not an exaggeration to say that it is a genuine product, and it is stylish without any discomfort.
It's expensive compared to other companies' products, but if you think of it as an AutoExe status fee, you can be convinced.

● Osaka Prefecture Maa-to-san (Roadster / ND)