Technical Screen - microHAM SMORF Manual

Filled UP ARROW informs that instant power is rising and at the same time it is the highest achieved
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peak power. BEST FWD PEAK updates to new maximum.
CHECKMARK  means that 100% power level has been achieved, tuning is done. At the same time
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SMΩRF plays the sound notification through internal speaker.
TUNE screen has special SCREEN MENU setting for the 100% level sound notification. Volume of the
notification can be set from 0 – 100%.
It is worth to note again that to the TUNE screen can be selected manually by ← and → buttons as any other
screen, but it is also possible to jump here automatically from any other single sensor screen when SMΩRF
detects tuning attempt, and if that screen has enabled AUTO JUMP TO TUNE screen in its SCREEN MENU.
All above features provide effective aid to quickly tune your power amplifier or antenna tuner, especially when
screen is combined with Z – TX – R+jX or Z – TX – |Z|Φ complex impedance reading on bottom bar graph.
So far we have described screens designed for regular, day to day operation or contesting. Now we are going to
describe screens which you normally don't use every day, but are extremely helpful for TX signal chain checking,
troubleshooting, experimenting on antennas and matching networks or bench measurements.
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TECHNICAL screen is the screen designed to provide complete overview of electrical parameters for both of two
point measurement points, TX and ANT simultaneously. There are total thirteen (13) values for power, reflection,
voltage, current, complex transmission line parameters as well as series and parallel equivalent circuits. Screen
is vertically divided to two sides, the left side shows measurements at the TX (sensor) point, the right side shows
computed values at the ANT (Antenna) feed point. Outlined center field shows losses in the antenna feed line.
FORWARD POWER
1.
Shows peak power for both TX and ANT points in Watts [W], dBm or dBW units.
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REFLECTION
2.
REF
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Reflected power for both TX and ANT points in Watts [W], dBm or dBW units.
SWR
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Standing Wave Ratio for both TX and ANT points.
RL
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Return Loss [dB] for both TX and ANT points.
3. VOLTAGE, CURRENT
Shows voltage and current for both TX and ANT points.
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pk = Peak value of voltage and current
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p-p = Peak-To-Peak value of voltage and current
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rms = Root-Mean-Square value of voltage and current
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TECHNICAL SCREEN

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