Tektronix RSA3408B, Service Manual

Page: 42 / 250

Performance Tests
3- 10
RSA3408B Analyzer Service Manual
Prerequisites
The tests in this section make up an extensive, valid confirmation of performance
and functionality when the following requirements are met:
H
The cabinet must be installed on the analyzer.
H
The instrument must have passed the procedures under Brief Procedures
found on page 3--3.
H
A signal-path compensation must have been done within the recommended
calibration interval and at a temperature within
±
3
_
C of the present
operating temperature. (If at the time you did the prerequisite Brief Proce-
dures, the temperature was within the limits just stated, consider this
prerequisite met.)
H
The analyzer must have been last adjusted at an ambient temperature
b20
_
C and +30
_
C, must have been operating for a warm-up
period of at least 20 minutes, and must be operating at an ambient tempera-
ture of b10
_
C and +40
_
C.
H
The SG flatness/spurious floppy disk(s) (Item 16 in Table 3--3) must be
prepared. For the procedure to create or update the flatness and spurious
correction files, refer to
Making Flatness Correction Files
on page 4--6 and
Making Spurious Correction Files on page 4--13.
Equipment Required
These procedures use external, traceable signal sources to directly check
warranted characteristics. Table 3--3 shows the required equipment.
Table 3- 3: Test equipment
Item number and
description Minimum requirements Example Purpose
1. Signal generator Frequency range: 10 kHz to 3.5 GHz;
Variable amplitude from --70 dBm to
+13 dBm into 50
Ω
;
Accuracy: <
±
1 dB; Function: FM
Agilent 8648D Checking flatness in
baseband and RF1
2. Signal generator Frequency range: 10 MHz to 8 GHz;
Output level: --30 dBm to +10 dBm;
Accuracy: <
±
1 dB
Agilent 83712B with
option 1E1
Checking flatness in
RF2 and RF3
3. Signal generator Frequency range: 1 MHz to 8 GHz;
Output level: --30 dBm to +10 dBm;
Accuracy: <
±
1 dB
Agilent E8257D with
option 1E1 (option UNX
recommended)
Checking flatness in all bands