Tektronix RFM150, Instruction Manual

Page: 41 / 278

Tutorial
RFM 150 Instruction Manual 1–19
b. Press F1 (CONFIG), then press F1 again (MEAS SETUP).
Four editable fields will be displayed: probe loss, power units,
low pilot, and high pilot.
c. Press F1 (PROBE LOSS) to select the probe loss field for
edit. Use the knob to select a probe loss value in the range of
–60.0 dB t60.0 dB. This is the amount by which the
level measurement displays will be offset. For example, if you
20.0 dB probe loss, then go to 1 channel mode, the
following label will appear in the upper right portion of the
screen: (offset +20.0 dB).
d. Press F2 (POWER UNITS) to select the power units field for
edit. Turn the knob to the right to select dBuV. This setting
determines the display in measurement modes. Press ESC
until you have exited all levels of the menu (a measurement
screen will be displayed). Press LEVEL, then select 1CHAN.
Note that the level readout (largest type size) appears in dBuV
units. Use the following key sequence to reset the power units
to dBmV if desired: UTIL–CONFIG–MEAS SETUP–POW-
ER UNITS.
e. Press F3 (LOW PILOT) to select low pilot frequency for edit.
Use the knob to enter the desired frequency. This frequency
will be used to make measurements in the pilots measurement
mode. Press F4 (HIGH PILOT) and repeat.
4. Pressing a preset key (F1–F5) will tune the instrument in modes
where presets are available. You can edit the preset labels and
frequencies, or you can set a preset to auto, then program its
frequency by the press-and-hold method. For information on how
to do this, refer to Presets on page 3–14.
5. Configure the RFM 150 Interface port for remote communications
with the CSS150 or between RFM 150 with another RFM 150 as
follows:
a. Press UTIL, then press F4 (RS232). Five editable fields will
be displayed, with the present setting for each field indicated
by an outline cursor. Figure 1–3 shows the RS232 menu with
the factory default settings.
Tutorial
RFM 150 Instruction Manual 1–19
b. Press F1 (CONFIG), then press F1 again (MEAS SETUP).
Four editable fields will be displayed: probe loss, power units,
low pilot, and high pilot.
c. Press F1 (PROBE LOSS) to select the probe loss field for
edit. Use the knob to select a probe loss value in the range of
–60.0 dB t60.0 dB. This is the amount by which the
level measurement displays will be offset. For example, if you
20.0 dB probe loss, then go to 1 channel mode, the
following label will appear in the upper right portion of the
screen: (offset +20.0 dB).
d. Press F2 (POWER UNITS) to select the power units field for
edit. Turn the knob to the right to select dBuV. This setting
determines the display in measurement modes. Press ESC
until you have exited all levels of the menu (a measurement
screen will be displayed). Press LEVEL, then select 1CHAN.
Note that the level readout (largest type size) appears in dBuV
units. Use the following key sequence to reset the power units
to dBmV if desired: UTIL–CONFIG–MEAS SETUP–POW-
ER UNITS.
e. Press F3 (LOW PILOT) to select low pilot frequency for edit.
Use the knob to enter the desired frequency. This frequency
will be used to make measurements in the pilots measurement
mode. Press F4 (HIGH PILOT) and repeat.
4. Pressing a preset key (F1–F5) will tune the instrument in modes
where presets are available. You can edit the preset labels and
frequencies, or you can set a preset to auto, then program its
frequency by the press-and-hold method. For information on how
to do this, refer to Presets on page 3–14.
5. Configure the RFM 150 Interface port for remote communications
with the CSS150 or between RFM 150 with another RFM 150 as
follows:
a. Press UTIL, then press F4 (RS232). Five editable fields will
be displayed, with the present setting for each field indicated
by an outline cursor. Figure 1–3 shows the RS232 menu with
the factory default settings.