On Mar 27, 5:40 am, wrote:
Gentleman,

We want to know whether VHF transceiver in ultralight aircraft need
TSO certificate. Is there non TSO VHF transceiver which was used in
ultralight aircrafts?

Thanks for all.

Luo

TSO is only required for part 135 operation (comercial) in the US. For
example, the KX-170B that was the main NAV/COM used for many years, is
not TSO'd. The KX-175 is the TSO version of it.

Bud