4-14 Out-of-Band Spurious Emission Measurement Chapter 4 — Spectrum Analyzer
4-12 MS20xxA VNA Master UG 10580-00166 Rev. C
4-14 Out-of-Band Spurious Emission Measurement
Required Equipment
• MS203xA VNA Master
• Test Port extension cable, Anritsu 15NNF50 - 1.5C
Procedure
1. Using the test port extension cable, connect the signal source to the RF In test port of the
MS203xA.
2. Press the
Freq key, select the Center Freq soft key, and enter the center frequency.
3. Press the
Span key. Set the span wide enough to include the primary channel bandwidth
and upper and lower channel bandwidths.
4. Press the
Amplitude key, then press the Reference Level soft key and set the reference
level to
–20 dBm.
5. Press the
Auto Atten soft key set the attenuation to On.
6. Press the
BW key and use the RBW and VBW soft keys to set the resolution bandwidth to
3kHz and the video bandwidth to 300 Hz.
7. Press the
Marker key and press the Marker123456 soft key to select marker 1. The
underlined number indicates the active marker.
8. Press the
On/Off soft key and use the arrow keys, the keypad and the knob to move the
marker over one of the spurs.
9. Compare the value of the marker to the specified allowable level of out-of-band spurious
emissions for the corresponding channel transmit frequency.
10580-00166C.book Page 12 Thursday, February 21, 2008 12:52 PM
To Next Page
Loading...
