Tektronix RFM150, Инструкция по эксплуатации

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Tutorial
1–8 RFM 150 Instruction Manual
F. 1 Channel Measurements
1. Press LEVEL, then press F1 (1 CHAN). The 1 CHAN label
should appear in the upper right corner of the screen.
2. Press CHAN. This ensures that the knob is assigned to tune the
instrument by channel. It also outlines the channel number (in the
upper left corner of the screen) to show that the channel entry
mode is selected.
3. Turn the knob until the instrument is tuned to the desired channel.
4. The instrument makes two measurements on the tuned channel.
These measurements appear in large type on the left side of the
screen, followed by the unit of measure. The measurements vary
depending on signal type:
H
For an analog channel, the measurement near the top of the
display is the visual carrier, and the measurement below it is
the aural carrier level difference, expressed relative to the
visual carrier level. (If the analog channel is a two-carrier
sound channel, both of the aural carrier level differences are
measured, relative to the visual carrier.)
H
For a digital channel, the average power is displayed at the
top of the screen, and there is no aural carrier measurement.
G. Pilots Measurement Mode
1. Press LEVEL, then press F2 (PILOTS). The PILOTS label
appears in the upper right corner of the screen. Tuning is inactive
in this mode.
2. The instrument displays a graph and numeric readout of the
visual carrier level for the high and low pilot channels. The
vertical screen resolution is displayed in the upper right portion
of the screen.
3. The REF LVL value in the upper left corner of the screen
represents the level at the top of the measurement screen, and is
set automatically by the instrument. The offset below it
represents the probe loss value.
You can change the probe loss value and the high and low pilot
frequencies through the Measure Setup Menu, which is accessed
Tutorial
1–8 RFM 150 Instruction Manual
F. 1 Channel Measurements
1. Press LEVEL, then press F1 (1 CHAN). The 1 CHAN label
should appear in the upper right corner of the screen.
2. Press CHAN. This ensures that the knob is assigned to tune the
instrument by channel. It also outlines the channel number (in the
upper left corner of the screen) to show that the channel entry
mode is selected.
3. Turn the knob until the instrument is tuned to the desired channel.
4. The instrument makes two measurements on the tuned channel.
These measurements appear in large type on the left side of the
screen, followed by the unit of measure. The measurements vary
depending on signal type:
H
For an analog channel, the measurement near the top of the
display is the visual carrier, and the measurement below it is
the aural carrier level difference, expressed relative to the
visual carrier level. (If the analog channel is a two-carrier
sound channel, both of the aural carrier level differences are
measured, relative to the visual carrier.)
H
For a digital channel, the average power is displayed at the
top of the screen, and there is no aural carrier measurement.
G. Pilots Measurement Mode
1. Press LEVEL, then press F2 (PILOTS). The PILOTS label
appears in the upper right corner of the screen. Tuning is inactive
in this mode.
2. The instrument displays a graph and numeric readout of the
visual carrier level for the high and low pilot channels. The
vertical screen resolution is displayed in the upper right portion
of the screen.
3. The REF LVL value in the upper left corner of the screen
represents the level at the top of the measurement screen, and is
set automatically by the instrument. The offset below it
represents the probe loss value.
You can change the probe loss value and the high and low pilot
frequencies through the Measure Setup Menu, which is accessed