RSSI port
The R/C receiver signal strength (RSSI) of the control link can be displayed as part of the OSD screen. The RSSI
port supports analog voltage and digital PWM input. After being calibrated, the value will change from 0% to
100% depending on how far away the receiver (model) is from the transmitter 0% means no signal, 100%
means full signal. It is a good rule of thumb to return when the figure approaches 60% to ensure good
operational conditions.
If your R/C receiver supports RSSI output, connect a cable from the receiver output to RSSI port on the TBS
CORE PNP PRO. Both analog voltage and digital PWM signal types are supported, and must be configured in the
CORE menu before it is displayed properly.
Some receivers are generating a digital PWM signal with too high frequency - this requires a low-pass filter to
convert the signal to analog voltage. The RSSI port is not needed when using a EzUHF receiver via the Link port,
see the next section.
Link port (LINK)
If you own a EzUHF long range receiver, you can connect the EzUHF to the TBS CORE PNP PRO to make use of the
extra telemetry data available.
The EzUHF 5-pin (3 wire) Link cable is required to connect your EzUHF 8-ch Diversity or Lite receiver to the TBS
CORE PNP PRO. The EzUHF 4-ch receiver does not provide the EzUHF OSD Link.
Connect the EzUHF Link cable to the Link port on the unit. In the CORE menu, change the RSSI setting to LINK to
enable the communication. No further calibration or setup is needed.
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