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Monitor Frequency
Sets the desired monitor frequency in a data entry window from 250 kHz to 3 GHZ using the arrow keys,
keypad, or tuning knob. Pressing Enter completes the change and Esc cancels the entry.
Copy Frequency to Generator
Sets the R8100 Generator to the same frequency as the Monitor
Modulation Type
Activates a horizontal submenu with selections for the signal demodulation mode of the R8100 receiver -
either FM or AM.
Bandwidth
Selects the IF detection bandwidth via horizontal soft keys from 6.25 kHz (narrow) to 200 kHz (wide).
Note: For best measurement quality always set an IF bandwidth no wider than necessary for the signal
carrier of interest. Example: Typical channel spacing for modern narrowband 2-way radio is 12.5 kHz.
Monitor IF bandwidths that are wider than needed for the channel spacing allow more noise in the
measurement and degrade the quality of readings for deviation, frequency error, SINAD, etc.
Attenuation
Adjusts the RF input signal attenuation in 2 dB steps from 0 to 90 dB in a selection table window using
the Up/Down (▲▼) keys or spin knob.
Pre-Amplifier
Enables a supplementary input amplifier that extends the sensitivity of the RF Monitor by improving the
S/N ratio for low signal levels. Green highlighted “AMP” text appears in the RF Display zone whenever
the Pre-Amplifier is active.
Note: By default the R8100 Pre-Amplifier Auto-Off feature disables the Pre-Amplifier for best accuracy
during broadband power (Watt Meter) measurements (see section 3.2.9.2). When enabled, avoid input
overload and erroneous signal strength readings by using the pre-amplifier only under the following
conditions:
Input Port
Maximum input level for using pre-amplifier
Antenna
(Input signal in dBm – Attenuator setting) is equal or less than -40 dBm
RF In/Out
(Input signal in dBm – Attenuator setting) is equal or less than -10 dBm
Mon Port
Monitors the RF input signal from either the ANTENNA or the RF In/Out front panel connectors. Choose
in a selection table window using the Up/Down (▲▼) keys or spin knob.
CAUTION
Do not apply input power to the Antenna input port.
Содержание R8100 SERIES
Страница 19: ...19 Figure 2 1 2 Left and Right Sides of the R8100...
Страница 164: ...164 Figure 2 2 7 7 5 Power Profile Frame with Markers...
Страница 224: ...224 Figure 3 2 9 6 1 Submenu after pressing Options soft key in the Settings menu...
Страница 243: ...243 PTC Test in Monitor Mode Eye Diagram Display...
Страница 244: ...244 Power Profile Display Linear and Circular Constellation Displays...
Страница 245: ...245 Symbol Distribution Plot...