No Link; High Ber - Trango Systems TrangoLINK APEX 18 User Manual

No LINK

• Ensure that Opmode is turned enabled for both sides of the link
• Verify the Transmit frequency is configured correctly for each side of the link.
• Ensure the Apex units for the link are paired correctly. The pair must be 1A and
1B for a link to be established.
• Both sides of the link must be configured for the same speed, channel bandwidth
and modulation
• Reissue Speed commands to both sides of the link and ensure you save the
settings.
• TargetRSSI incorrectly configured. Ensure that the targetrssi is set correctly so
that the link doesn't decrease power to the point of losing the link.
• Check the power setting on both sides of the link
• Check to make sure Loopback is disabled.
• Antennas are misaligned, verify RSSI values
• Look at troubleshooting tips for other issues.

High BER

A high Bit Error Rate can be caused by the following:
Extremely high receive signal strength. This can be prevented by enabling the following.
• Enable ATPC and ensure the TargetRSSI is set correctly or reduce the power of
the remote side manually.
• Ensure the ferrite is installed on the power connection as close as possible to the
J-Box injector.
• Ensure the Apex unit is properly grounded.
• Verify that shielded CAT5 cable is being used and CAT5 cable does not run
parallel to power cables.
TrangoLINK Apex™ 18 User Manual Rev. 1.0 Section: Chapter 6 - Troubleshooting Page 63