2-40
001-4006-101
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 2-9 is based on a forward power of 5 watts (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.
Table 2-1 SWR / Rev Pwr Interpretation
SWR Rev Pwr Significance
1:1 0 Ideal situation
1.5:1 0.2 Normal operation
2:1 0.6 Should be investigated
3:1 or greater 1.25 or greater Defective antenna, feedline, or connectors
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