Giga-tronics 8650B Series, Руководство по эксплуатации

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Front Panel Operation
Publication 31470-001, Rev C, November 2, 2017 2-27
2.4.4 Measuring Source Output Power
To measure the source output power:
1.
Connect the power sensor to the RF output of the microwave source.
2. Verify that the microwave source RF output is ON.
3. Press [FREQ] ; enter the operating frequency (use the cursor keys to adjust the value), and press [OK] .
4. The 8650B will now display the microwave source output power. Adjust the source amplitude to the desired
level.
The 8650B responds rapidly to amplitude changes. Ranging is automatically performed in real time through a 90
dB dynamic range using CW or modulated sensors. The peak sensor dynamic range is 40 dB Peak and 50 dB CW.
Entering the operating frequency enables the 8650B to automatically apply frequency calibration factors
appropriate to the sensor being used. The operating frequency can be communicated to the 8650B using the
front panel menus, remotely, or the V
PROP
F voltage input.
2.4.5 Using the Peaking Meter
The line bar graph provides a linear display of power level on a decade range basis. For example, a power level
of 3 dBm produces an approximate 50% response on the peaking meter. The peaking meter displays on the
configured line as a solid horizontal bar between two brackets. The bracket on the left of the screen represents
the lower limit of the peaking meter, and the bracket on the right of the screen represents the upper limit (See
Figure 2-15). The procedure to turn the peaking meter on and off, and to set its limits is detailed in Section 2.3.2.
Figure 2-15: Peaking Meter