TBS Unify Pro HV 5.8GHZ VTX - Manual V2
your power settings.
CleanSwitch
A new feature introduced with the TBS UNIFY PRO 5G8 HV is CleanSwitch. When video transmitters power
up or change frequency, they usually send a burst across the entire band which disturbs fellow flying
pilots. All UNIFY PRO 5G8 video transmitters will remain in their lowest power output (25mW for UNIFY
PRO 5G8, less than 0.1mW for TBS UNIFY PRO 5G8 HV) while changing channels and powering up. This
ensures interruption-free racing, even with multiple video transmitters changing channels, or powering up.
SmartAudio
SmartAudio is a protocol developed by TBS for OSD to VTx communication. All newer generation OSDs at
TBS, and all UNIFY PRO series VTX support SmartAudio V1.0, with the UNIFY PRO HV line we have launched
SmartAudio V2.0. The new version supports control for the new features (e.g. PitMode). SmartAudio is a
single-wire UART protocol, running over the Audio-wire. If you are a OSD or VTx developer interested in
adding support for SmartAudio, please create a support ticket with us so we can supply you with the
technical documentation:
● http://team-blacksheep.freshdesk.com/
SmartAudio LITE
SmartAudio LITE is used on the tiny Unify PRO nano. The software protocol is the exact same as on
Smartaudio V2.
However there are two limitations/caveats:
● It requires 3.3V level. The standard SmartAudio accepts 0.9V audio level. This means SA Lite is not
compatible with TBS CORE PRO, but compatible with all FC and other devices.
● Some FC targets have hardware incompatibility which does not sufficiently pull logic to zero on idle
or start of SA commands. According to the SA specification, each command has to start with logic
zero. The Unify Pro Nano is more susceptible to incompatibility with SA standard due to different
hardware layout
15