Tektronix RFM150, Instruction Manual

Page: 24 / 278

Product Description
1–2 RFM 150 Instruction Manual
All Channel Mode.
This mode provides a graphic display of the visual
carrier levels of all the channels defined in the selected channel
table.
Other Operating Modes
In addition to the level measurement modes, the following modes are
available:
Measure.
This mode measures carrier-to-noise, hum, and FM
deviation measurements. The visual carrier level of the tuned
channel is also displayed.
Spectrum. This mode provides a spectrum display of the selected
channel using a 30 kHz or 300 kHz resolution bandwidth filter and
selectable span. You can use a reference marker to measure the level
and frequency of any point in the spectrum. Using this mode, you
can troubleshoot in-channel anomalies.
Sweep. This mode makes reference sweeps. First, measure the carrier
levels of a point upstream and store the results as a reference. Then
you can measure the response of a point downstream relative to the
reference.
Help.
This mode provides context-sensitive help. Use the knob to
scroll through the various help screens.
User Interface
By pressing a menu key, you display choices that you can make with
the function keys (F1–F5), with the knob, or with the numeric
keypad. You can tune the instrument by selecting a preset channel
that you have defined. You can also tune by channel or frequency
using the knob or numeric keypad.
Automated Test Sequences
The 24 Hour test is already loaded in the RFM 150. You can load
additional test sequences from a PC (using the companion CSS150
software), or from another RFM 150. You can set these test sequences
Product Description
1–2 RFM 150 Instruction Manual
All Channel Mode.
This mode provides a graphic display of the visual
carrier levels of all the channels defined in the selected channel
table.
Other Operating Modes
In addition to the level measurement modes, the following modes are
available:
Measure.
This mode measures carrier-to-noise, hum, and FM
deviation measurements. The visual carrier level of the tuned
channel is also displayed.
Spectrum. This mode provides a spectrum display of the selected
channel using a 30 kHz or 300 kHz resolution bandwidth filter and
selectable span. You can use a reference marker to measure the level
and frequency of any point in the spectrum. Using this mode, you
can troubleshoot in-channel anomalies.
Sweep. This mode makes reference sweeps. First, measure the carrier
levels of a point upstream and store the results as a reference. Then
you can measure the response of a point downstream relative to the
reference.
Help.
This mode provides context-sensitive help. Use the knob to
scroll through the various help screens.
User Interface
By pressing a menu key, you display choices that you can make with
the function keys (F1–F5), with the knob, or with the numeric
keypad. You can tune the instrument by selecting a preset channel
that you have defined. You can also tune by channel or frequency
using the knob or numeric keypad.
Automated Test Sequences
The 24 Hour test is already loaded in the RFM 150. You can load
additional test sequences from a PC (using the companion CSS150
software), or from another RFM 150. You can set these test sequences