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TPI
TPI Transmit Power Indicator
VSWR Voltage Standing Wave Ratio is a measurement of how good the
antenna (and cable) is matched to the radios output. It is best measured
at the antenna as the cable can effect this measurement.
TPI indicates the level of RF power delivered to the antenna connector.
This allows you to see how good the antenna is matched to the
transceiver.
Generally a VSWR of less than 2 is an acceptable match.
The VSWR and Power test can vary depending on installation
conditions. If TPI feature is turned off in the settings menu, the TPI
indicator will show 5 bars during TX.
If an incorrect or no antenna is connected and power output is less than
3.5W, "ANT-X" will be displayed when TPI feature is turned on or off.
When "ANT-X" is displayed, the radio has enabled protection mode and
reduced RF output.
Correct Antenna install with 5W
VSWR 1.2 with 4.5W
VSWR 2.6 with 4W
VSWR 3.5 with 3.5W
VSWR 4.4 with 3W
< 3W
Operations
25
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