User's Manual

FEATURES AND OPERATION
2-13
Part No. 001-4090-101/102
2.5.2.10 Reverse Power and SWR
A reverse power reading above zero is an indication that the antenna, feedline or connectors
are damaged, corroded or improperly tuned. This creates standing waves that are reported as
a Standing Wave Ratio (SWR).
Table 2-5 is based on a forward power of 1 watt (it may be scaled for lower power settings)
and gives guidelines to interpreting these figures:
Should values returned by the built-in diagnostics seem to indicate a problem, verify using
proper radio shop equipment.
2.5.2.11 RX Quality Indicator
This is the number of good received data transmissions out of the last 15. The receive quality
indicator value returned by any remote unit to the master station is an indication of the
reception quality on the outbound path.
If the master station is monitored, either from a remote station or by using a local GET
STATS, users should note that the receive quality indicator thus returned is a composite value
which represents the average reception from the last 15 remotes. Any significant drop in the
receive quality indicator returned by the master station is likely to indicate a problem with
the master station receiver itself rather than any one remote station.
2.6 OFFLINE DIAGNOSTICS
Offline diagnostics are returned in response to a specific request to a particular station. Requests
are issued using the Integra RDS, either locally or remotely from another station. This may cause slight
temporary network disruption. We recommend the user application be offline.
The diagnostic information available is similar to that available from online diagnostics with the
following additions:
lDemodulated signal voltage: peak-to-peak
lAnalog 1 input voltage: 0 - 10.0 VDC
lAnalog 2 input voltage: 0 - 10.0 VDC
lReverse power: in watts rather than a good / poor flag.
Table 2-5 SWR / Rev Pwr Interpretation
SWR Rev Pwr Significance
1:1 0 Ideal situation
1.5:1 0.05 Normal operation
2:1 0.2 Should be investigated
3:1 or greater 0.3 or greater Defective antenna, feedline, or connectors