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TUNE SCREEN
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TUNE screen is specialized screen helping to tune manual Power Amplifiers or Antenna Tuners. It provides two
forward power readings (1), reflection measurement (2), ratio of current power to user adjustable 100% power
level set in SENSOR MENU displayed in percents (3), tuning progress display (4) and instant tuning status
indicator (5).
1. FORWARD POWER
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BEST FWD PEAK shows maximal peak power in Watts [W] achieved from the start of tuning and is
equivalent to the Total Peak Power (TPK) power type. Resets on exit from TUNE screen (switch to
another screen), either manual or automatic.
FWD PEAK shows instant peak power in Watts [W] and is equivalent to Peak Envelope Power (PK)
type.
2. REFLECTION
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REFTX
Reflected power [W] at the TX (Sensor) feed point.
REFANT
Reflected power [W] at the ANT (Antenna) feed point.
SWRTX
Standing Wave Ratio at the TX (Sensor) feed point.
SWRANT
Standing Wave Ratio at the ANT (Antenna) feed point.
RLTX
Return Loss [dB] at the TX (Sensor) feed point.
RLANT
Return Loss [dB] at the ANT (Antenna) feed point.
3. PERCENTAGE
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Shows ratio of current power to 100% power level, in percents. In other words, it shows what is your
instant power compared to desired 100% power level you have set in SENSOR MENU. When it
shows 100%, your output power is tuned exactly to where you want to be.
4. TUNING PROGRESS DISPLAY
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Displays power level progress in time, slowly rolling from left to right, new values coming from the
right. Vertical scale is linear in Watts, range is set in % while dim line near the top shows 100% level.
It serves as a progress bar and helps to quickly recognize if tuning peak you already had wasn't
better than your current tuning peak.
5. INSTANT TUNING STATUS INDICATOR
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Shows instant status of the tuning by well visible arrow.
Outlined DOWN ARROW means that instant peak power is decreasing.
Outlined UP ARROW indicates that instant power is rising, but its value is lower than the highest,
already achieved peak BEST FWD PEAK power.
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