Agilent Technologies 75000 Series C - Manual (Page 22)

Functional Verification: Ref In/Marker Out Test
Description
The purpose of this test is to check the Ref/Sample In and Marker Out ports.
An external reference is connected to the Ref/Sample In port and sent to the
Marker Out port.
Test Procedure
1. Reset the AFG:
*RST;*CLS Reset AFG and clear
status registers
2. Set up equipment as shown in Figure 2-1:
3. Set up the AFG to output the external reference to the "Marker Out"
port:
ROSC:SOUR EXT External ref oscillator
MARK:FEED "ROSC" Marker source is ROSC
INIT:IMM Initiate
4. Verify that the scope shows a 10 MHz squarewave.
Figure 2-1. Ref/Sample In Test Setup
20 Verification Tests Agilent E1445A Service Manual