Figure 7: Adjusting The Master Clock Frequency Using A Frequency Standard; Table 1: Equipment Required To Adjust The Master Clock Using A Signal Generator - Tektronix SPG8000A Service Manual

Adjustment procedures

Table 1: Equipment required to adjust the master clock using a signal generator

Item
Frequency standard
75 Ω BNC cable
Procedure

Figure 7: Adjusting the master clock frequency using a frequency standard

16
Required equipment. The following table lists the equipment required to adjust
the master clock frequency using a frequency signal generator.
No. Minimum requirement
1 Frequency: 10 MHz ±1×10
Amplitude: 8 dBm
1 Length: 42 inches
Perform the following procedure to adjust the master clock frequency using
a frequency standard.
1. Set the output of the frequency standard as follows:
Frequency: 10.000000 MHz
Output level: 8 dBm
2. Use the 75 Ω BNC cable to connect the rear-panel REF connector to the
output of the frequency standard as shown in the following figure, and attach
a 75 Ωterminator to the REF loop-through connector.
NOTE.
You can use a second SPG8000A, with Option GPS installed, to produce
the 10 MHz frequency standard.
In this case, ensure that the Option GPS is locked to a GPS or GLONASS signal in
fine mode. Configure the Black 3 output to supply a 10 MHz sine wave. Connect
the Black 3 output to the rear-panel REF connector on the second SPG8000A.
3. Restart the instrument in Factory mode. (See page 115, To power up in
factory mode.)
4. Let the instrument warm up for 20 minutes before proceeding.
SPG8000A Master Sync / Clock Reference Generator Service Manual
Recommended equipment
A reference Tektronix SPG8000A, with
–9
Option GPS installed and locked to
GPS, GLONASS or equivalent
Spectracom/Pendulum 6689
Tektronix part number 012-0074-00