R&S AFQ100A
Baseband Block
1401.3084.32 4.35
E-3
Source - Reference
Clock
Selects the reference clock source.
Note:
The
Internal Reference Clock Source
is available only in the
reference clock synchronization modes
Normal
and
Master
. If the
instrument is set to
Slave
or
Last slave
mode the reference clock
source is set to
External
. The entry field is not displayed in the
Clock
dialog.
Internal
A sample clock is supplied internally.
Remote-control command:
SOUR:ROSC:SOUR INT
External
The clock signal is fed in externally via the BNC
connector REF IN at the rear panel of the instrument.
Remote-control command:
SOUR:ROSC:SOUR EXT
Delay (ns) - Bandwidth
Reference Clock
Sets a time shift (delay) to the reference clock signal for adjusting the
clocks in the slaves.
Recommended range: 0…5 ns.
Remote-control command:
SOUR:ROSC:DEL 2.5
Note:
The synchronization of several connected R&S AFQ
I/Q Modulation Generators requires the
Baseboard Revision 8
or
higher. Up to baseboard
Revision 5
only synchronization mode
normal
is provided (stand-alone mode).
Synchronization
Bandwidth - Reference
Clock
(Reference clock
external
only)
Enters the synchronization bandwidth, i.e. the target range of the
synchronization circuit. The synchronization bandwidth is indicated
only when an external reference clock source is selected.
Narrow
A narrow synchronization bandwidth is selected, the
synchronization circuit works slowly.
Remote-control command:
SOUR:ROSC:EXT:SBAN NARR
Wide
A wide synchronization bandwidth is selected, the
synchronization circuit works fast.
Remote-control command:
SOUR:ROSC:EXT:SBAN WIDE