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SNA5000A Vector Network Analyzer User Manual 28
and down key, rotating the knob, or pressing the numeric keypad. Press ENTER, the
knob, or ESC to exit editing mode.
2.2.3 Frequency resolution
Set the frequency resolution to 1Hz.
2.3 Power level
Power level refers to the output power at the port of the vector network analyzer.
Here are the keys to operation:
1. Press Power, use the knob or arrow keys to focus on the Power→Power Level
parameter item. Input the required power level. Press ENTER to exit editing mode. The
default unit is dBm.
2. Press Power, use the knob or arrow keys to focus on the Power→RF Power parameter
item. Turn on or off RF power.
3. Press Power, use the knob or arrow keys to focus on the Port Power parameter item,
Configure start and stop power. Start and stop power are only available in power sweep
mode.
4. Press Power, use the knob or arrow keys to focus on the Port Power→Select
parameter item, Press ENTER or the knob to select the corresponding power port.
5. Press Power, use the knob or arrow keys to focus on the Port Power→Coupling
parameter item, Press ENTER or the knob to choose to turn coupling off or on.
6. Press Power, use the knob or arrow keys to focus on the Leveling & Offsets→Slope
Enable parameter item, Press ENTER or the Knob to turn on the Slope switch, Press
Leveling & Offsets→Slope to set the Slope.
Coupled port power:
• Coupling (selected): The power level of each test port is the same. If the power of any test
port is set, the power of all test ports will change accordingly.
• Decoupling (clearing): Set the power level for each test port separately and decouple the
Power. For example, if you want to measure the gain and reverse
isolation of a high gain amplifier, the input port of the amplifier
requires much less power than the output port. Power sweep can
also be performed using uncoupled power.
Power Leveling&Offsets
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