Chapter 3 51
Basic Operation
Configuring the RF Output
6. Press the up arrow key.
Each press of the up arrow key increases the frequency by the increment value last set with the
Incr Set
hardkey. The increment value is displayed in the active entry area.
7. The down arrow decreases the frequency by the increment value set in the previous step. Practice
stepping the frequency up and down in 1 MHz increments.
You can also adjust the RF output frequency using the knob. As long as frequency is the active function
(the frequency is displayed in the active entry area), the knob will increase and decrease the RF output
frequency.
8. Use the knob to adjust the frequency back to 700 MHz.
Setting the Frequency Reference and Frequency Offset
The following procedure sets the RF output frequency as a reference frequency to which all other frequency
parameters are relative. The frequency initially shown on the display will be 0.00 Hz (the frequency output
by the hardware minus the reference frequency). Although the display changes, the frequency output does
not change. Any subsequent frequency changes are shown as incremental or decremental to 0 Hz.
1. Press
Preset.
2. Press
Frequency > 700 > MHz.
3. Press
Freq Ref Set.
This activates the frequency reference mode and sets the current output frequency (700 MHz) as the
reference value. The FREQUENCY area displays 0.00 Hz, which is the frequency output by the
hardware (700 MHz) minus the reference value (700 MHz). The REF indicator is activated and the
Freq Ref Off On softkey has toggled to On.
4. Press
RF On/Off.
The display annunciator has changed from RF OFF to RF ON. The RF frequency at the RF OUTPUT
connector is 700 MHz.
5. Press
Frequency > Incr Set > 1 > MHz.
This changes the frequency increment value to 1 MHz.
6. Press the up arrow key.
This increments the output frequency by 1 MHz. The FREQUENCY area display changes to show
1.000 000 00 MHz, which is the frequency output by the hardware (700 MHz + 1 MHz) minus the
reference frequency (700 MHz). The frequency at the RF OUTPUT changes to 701 MHz.
To Next Page
Loading...
Need help?
General
