9-27
IM 704420-01E
Troubleshooting and Maintenance
9
9.7
Adjusting the Equalizer
Perform the adjustment of the equalizer described in this section when the test
results of the “Equalizer Test” in section 9.6, “Executing the Performance Test,”
does not satisfy the allowable range.
CAUTION
• Do not apply a voltage exceeding the maximum input voltage to the input
terminal of each instrument. This may cause damage to the input section.
• Do not short the output terminals of instruments or apply external voltage to
them. This may cause damage to the internal circuitry.
Items Required
The following items are required:
• Spectrum analyzer
• Frequency range: 100 kHz to 10 MHz
• Recommended instrument: MS2601 (Anritsu)
• Synthesized signal generator
• Frequency range: 100 kHz to 10 MHz
• Output level: 720 mVrms or more
• Recommended instrument: Synthesized signal generator 8657B (Agilent
Technologies)
• 50-
Ω
terminator
• Recommended device: 700976 (YOKOGAWA)
The procedure for adjusting the equalizer using the recommended instruments is
described below.
Connecting the Instrument
• Check that the power switch is turned OFF on all instruments before connecting
them.
• Connect the output of the synthesized signal generator to the RF input connector of
the TA120E through the 50-
Ω
terminator.
• Connect the output of the monitor output connector (EQUALIZED RF/MONITOR
OUT) of the TA120E to the spectrum analyzer.
8 65 7 B
DATA
TRIG
TA120E
Synthesized signal generator
(8657B)
OUTPUT
RF input connector
50-
Ω
terminator
MS2601
RF INPUT
EQUALIZED RF/
MONITOR OUT
