Tektronix RFM150, Instruction Manual

Page: 69 / 278

Making Measurements
RFM 150 Instruction Manual 2–23
The 5 channel measurement screen provides a graph and numeric
readout of the visual carrier level on five preset frequencies. The
vertical range is 30 dB; 6 divisions at 5 dB per division.
Reference level.
This is the level at the top of the screen, and is
displayed in the upper left corner of the screen (REF LVL). The
RFM 150 automatically selects the optimum reference level, based
on the five channel level measurements.
Signal frequencies. The five preset names and frequencies are
displayed across the bottom of the screen. These are the frequencies
of the signals being measured, and they can be reprogrammed
through the utility menu or by the press-and-hold method. The auto
presets notation is ‘C:’. See page 3–14 for instructions on program-
ming the presets.
Exit. To change to another menu, press the new menu key. Pressing
certain menu keys will reassign the function keys while leaving the
meter mode display on screen (for example, pressing STORE to store
a measurement result). Press ESC to exit the other menu and restore
the preset name and frequency labels. To change to another level
measurement mode, press LEVEL.
Making Measurements
RFM 150 Instruction Manual 2–23
The 5 channel measurement screen provides a graph and numeric
readout of the visual carrier level on five preset frequencies. The
vertical range is 30 dB; 6 divisions at 5 dB per division.
Reference level.
This is the level at the top of the screen, and is
displayed in the upper left corner of the screen (REF LVL). The
RFM 150 automatically selects the optimum reference level, based
on the five channel level measurements.
Signal frequencies. The five preset names and frequencies are
displayed across the bottom of the screen. These are the frequencies
of the signals being measured, and they can be reprogrammed
through the utility menu or by the press-and-hold method. The auto
presets notation is ‘C:’. See page 3–14 for instructions on program-
ming the presets.
Exit. To change to another menu, press the new menu key. Pressing
certain menu keys will reassign the function keys while leaving the
meter mode display on screen (for example, pressing STORE to store
a measurement result). Press ESC to exit the other menu and restore
the preset name and frequency labels. To change to another level
measurement mode, press LEVEL.