Test 2-7: frequency accuracy (cont’d) – Agilent Technologies 75000 Series C User Manual

Page 59

Test 2-7: Frequency Accuracy (cont’d)

Test Procedure
(cont’d)

Set reference oscillator to INT1 or INT2, as specified in Table 2-7:

ROSC:SOUR INT1

Set ref osc to INT1

ROSC:SOUR INT2

Set ref osc to INT2

Set marker source to "ROSC" or "TRIG", as specified in Table 2-7:

MARK:FEED "ROSC"

Set marker source to
"ROSC"

MARK:FEED "TRIG"

Set marker source to
"TRIG"

If the marker source is "TRIG", use the following commands to
output a squarewave (otherwise, skip this step):

FUNC SQU;

Select squarewave

:FREQ2 ;

Set AFG frequency

:TRIG:SOUR INT2

Set trig source

INIT:IMM

Initiate

where is the value given in the "Squarewave
Frequency" column of Table 2-7.

NOTE

If the marker source is "TRIG", the marker output frequency will be four
times the frequency of the squarewave, since it takes four points to produce
a squarewave. See Table 2-7 for the expected frequencies.

Measure frequency with the Counter and record the reading in Table
2-11.

Agilent E1445A Service Manual

Verification Tests 57

This manual is related to the following products:

E1445A