BTS Master™ MT8220T User Guide : Quick Start : Set the Measurement Frequency
 
Set the Measurement Frequency
Using Start and Stop Frequencies
The submenu keys and the frequency settings are displayed on the left and right edges of the graph in the seep window.
1. Press the Freq main menu key.
2. Press the Start Freq submenu key.
3. Enter the desired start frequency. When entering a frequency by using the keypad, the submenu key labels change to frequency units: GHz, MHz, kHz, and Hz. Press the appropriate unit key. Pressing the Enter key has the same affect as pressing the MHz submenu key.
4. Press the Stop Freq submenu key.
5. Enter the desired stop frequency.
Entering Center Frequency
1. Press the Freq main menu key.
2. Press the Center Freq submenu key. This key is usually selected automatically.
3. Enter the desired center frequency by using the keypad, the arrow keys, or the rotary knob. When entering a frequency by using the keypad, the submenu key labels change to frequency units: GHz, MHz, kHz, and Hz. Press the appropriate unit key. Pressing the Enter key has the same affect as pressing the MHz submenu key.
Selecting Signal Standard
1. Press the Freq main menu key.
2. Press the Signal Standard submenu key. The Signal Standards dialog opens. You can enter channel numbers instead of frequencies.
3. Highlight a signal standard and press Enter or the rotary knob to select.
4. Press the Channel submenu key to change the channel value in the Channel Editor.
Note 
The signal standards list can be updated via Master Software Tools.
Setting Measurement Frequency Bandwidth
Spectrum Analyzer and Interference Analysis Mode
1. Press the BW main menu key to display the BW menu.
Press the RBW or the VBW submenu key (or both) to manually change values.
Set RBW and VBW automatically by pressing the Auto RBW submenu key or the Auto VBW submenu key.
2. Press the VBW/Average Type submenu key to toggle between Linear averaging (arithmetic mean) and Logarithmic averaging (geometric mean).
3. Press the RBW/VBW submenu key to change the ratio of resolution bandwidth to video bandwidth.
4. Press the Span/RBW submenu key to change the ratio of span width to resolution bandwidth.