8.0 Troubleshooting; Symptom: No Link (Lock = 0 During Linktest); Mse Is Too High And/Or Bit Errors Are Showing When Running Linktest - Trango Systems TrangoLINK GigaPlus User Manual

8.0 Troubleshooting

This section provides troubleshooting advice for problems that may be encountered
during setup and normal operation of the system.

Symptom: No Link (Lock = 0 during linktest)

1) TX Frequency must EXACTLY match the RX frequency on the remote side. Type freq
command from the CLI to view. Verify that the frequencies used match the
regulatory body (FCC or equivalent) approved frequencies.
2) Opmode is off. Run opmode command to view, and run opmode on to enable. If
the unit was rebooted and the default opmode is not on, the unit will come back on
but the opmode will be off. To prevent, run default_opmode on command and
config save.
3) Are the frequencies configured correctly on each radio (TX and RX)? High frequency
on the "B" side and low frequency on the "A" side..
4) Is the ODU unit installed properly on the remote mount (remote mount applications
only)? The system unit will only operate in a single orientation on the remote
mount. Follow the directions on the remote mount to ensure correct installation.
The arrows on the Remote mount must be aligned with the "V" on the ODU.
5) Are both ODUs at the ends of the link mounted on the same polarization? ODUs
must be mounted with matching polarizations at each end of the link. If one side is
mounted on the antenna differently than the other side, the link will not lock or the
signal level will be 20-30 or more dB lower than expected.
6) IF ACM is being used, ACM may not be enabled on both ends of the link. Enable the
ACM and reset the speed on each end. The speed must be set the same on both
ends.

MSE is too high and/or bit errors are showing when running linktest

Trango Systems, Inc. GigaPlus User Manual Rev 3.1
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