GE GFK-2489 User Manual download pdf (Page 157)

7-6 TranSphere TS Wireless Extended Range IP Networking Transceivers – January 2008 GFK-2489

When troubleshooting throughput quality issues, a check should also be made of the Radio

Packet Statistics Screen. This menu provides a review of packet statistics from a radio link

(RF) perspective.

Radio Packet Statistics Menu

Overflow 0 Failed 0

No Ack 55 Over the Air Data 5575

Lost Data 0 Frags 6773

Timeout 0 Retries 4

Good Data 5630 Diags 211

A) Packets Received by Zone

Select a letter to configure an item, <ESC> for prev menu

It is also helpful to check the RSSI of incoming signals. If the RSSI levels in each zone are

within a few decibels (dB) of each other, but less than –90 dBm, then check the aiming of the

antenna system. See “Aiming Directive Antennas for Maximum RSSI” in chapter 6 for details.

The average signal level should be –95 dBm or stronger for reliable performance with an

allowance for fade margin.

Another place to look for trouble is in Packets Received by Zone. The packets should be

evenly distributed across all zones (1-5% variation). If they are not, interference in the

disparate zones should be suspected. Blocking these zones may eliminate or reduce harmful

interference.

Skip Zones Menu

A) Zone #1 Active E) Zone #5 Active

B) Zone #2 Active F) Zone #6 Active

C) Zone #3 Active G) Zone #7 Active

D) Zone #4 Active H) Zone #8 Active

I) Commit Changes

Select a letter to configure an item, <ESC> for prev menu

When dealing with radio interference troubles, be sure to review A Word About Radio

Interference in chapter 6.

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GE GFK-2489 User Manual Page 157