Troubleshooting
General Debug
Downlink Link Quality is poor, even when sitting on the bench
Ensure that the internal 2.4GHz transmitter of your R/C radio is completely disabled.
OTA Firmware Upgrade is unreliable, rarely succeeds
As above, ensure that the internal 2.4GHz transmitter of your R/C radio is completely disabled.
A high power transmitter in such close proximity to the receiver can create issues for the upgrade
process.
No Stick Movements between R/C Radio, and Ghost Tx
Ensure that the internal 2.4GHz transmitter of your R/C radio is completely disabled.
A ‘feature’ of many new FrSky™ radios is that the interface to the external module has it’s voltage
levels halved (down to 2.0V peak to peak) when the internal module is enabled.
Newer OpenTx builds should prevent this from happening.
Tx Shows ‘Bind Button Not Pressed’ Even Though It Was
Make sure that there is not a second Ghost Rx nearby, also in bind mode. This problem typically
occurs when there are multiple receivers in bind mode.
Windows Updater Fails to Update Ghost
In very rare cases, a Windows PC may have multiple COM ports with the same name (e.g. COM3). Not
quite sure why this is possible, but it needs to be resolved before the updater can work correctly.
In one case the conflicting port was a Bluetooth->Serial port that needed disabling. .
Every Attempt at Binding Starts Update
When in the bind page, a right click of the joystick toggles ‘force update’ mode. Should not be needed
in normal use, but if accidentally turned on, then every bind attempt will try to update the receiver.
Long Range mode, Combined With SRXL-2 Protocol, Won’t Arm
This combination of mode, and protocol works fine on the Ghost side, but an internal setting within
the Betaflight source code, which can’t be changed in the CLI, prevents it from working.
Long Range mode sends packets at 17Hz, or 58ms. The internal failsafe timer for SRXL-2 mode is set
ImmersionRC Limited, Kwai Chung, NT, Hong Kong, www.immersionrc.com
Summary of Contents for Ghost Atto Duo
Page 1: ...Rev 1 4 Oct 2020...
