Adjustment Procedures
2715 Spectrum Analyzer Service Manual 5-55
User Defined Signal Generator. If this item is selected during the above configura-
tion procedure, you will be prompted to enterthe following information that will
tell the software how to drive the signal generator you specify.The correct
entries for the Wiltron6769A Swept Synthesizer will be used in this example.
1. Manufacturer’sName. 15 characters maximum. For Wiltron 6769A: Wiltron
2. Model Name. 10 charactersmaximum. For Wiltron 6769A: 6769A
3. GPIB command to initialize the signal generator(80 characters maximum).
Enter the string of charactersto reset to the following conditions:
HCW Mode selected (if signal gen erator is a sweeper)
HAll other miscellaneousfunctions, like Modulation, turned off
For Wiltron 6769A: RST
4. GPIB command that will turn the RF Output on. Enter the string of
characters thatwill turn the RF Output on. For Wiltron 6769A: RF1
5. GPIB command that will turn the RF Output off. Enter thestring of
characters thatwill turn the RF Output off. For Wiltron 6769A: RF0
6. Minimum RF Output Amplitude. Enter the minimum amplitude that the
signal generator can produce(in dB m) overthe frequency range
10 MHz to 1000 MHz. For Wiltron 6769A: -- 9 2
7. Maximum RF Output. Enter the maximum amplitude the signal generator
can produce (in dBm) overthe frequency range 10 MHz to 1000 MHz. For
Wiltron 6769A: +10
8. Enter the command to set the RF Output Amplitude. Enter the string of
characters thatcomprise the RF output amplitude command. The actual level
and units will be appended to this command by thesoftware. For Wiltron
6769A: L1
9. Enter units to append to the RF output amplitude for dBm --Enter the string
that will be appended to the numeric part of the RF Output Amplitude
command that will designate that thenumber is in dBm. If no units are
required, enter <Return>. For Wiltron6769A: DM
10. Enter the finest resolution available forthe R F Output Amplitude (in dB).
For Wiltron 6769A: .01
Using the above example for the Wiltron6769A, the software will send the
following to set the 6769A to maximum output amplitude: L1 10.00 DM
11. Enter Minimum Output Frequency in Hz. Be sure to enter a number in
decimal or scientific notation. For Wiltron6769A: 10000000 or 10e6 (not
10 MHz)