OPTION 008 RF PROFILES AND COMPLEX SWEEP
Annex-B-5
Offset 2
Offset 3
Offset 4
Offset 5
Offset 1
LOCAL
Save
Setting
Enable/
Disable
EXIT
RF Offsets : DISABLED
Offset 1 :
+20.0
dB
Offset 2 :
+0.0
dB
Offset 3 :
-2.0
dB
Offset 4 :
+10.0
dB
Offset 5 :
+2.0
dB
C0862
Fig. B-3 RF offset selection (shown unlocked to Level 1)
Selecting one of the
[Offset]
keys will allow an offset of up to +80 dB to -40 dB to be entered
using the numerical key pad and the [dB]
terminator key. Any of the five offset values may be
selected by pressing the appropriate soft key.
The offset values can be changed at any time. The set of values displayed when the instrument is
first switched on can also be changed by the user. The generator should be unlocked to Level 1 so
that the
[Save Setting
] key is displayed If the offset values are then changed to the required power
up settings and the
[Save Setting
] key is pressed the values are stored in non-volatile memory. If
the instrument is switched off then when power is restored the saved values of offsets will be
automatically recalled and displayed. If the offset values are edited but not saved the edited values
will be lost when the instrument is switched off.
The offset facility can be enabled or disabled using the
[Enable/Disable]
key. The state of the
Enable/Disable function is stored in non-volatile memory if the
[Save Setting
] key is pressed. If
the instrument power is turned off and then on, the stored condition of the Enable/Disable function
is recalled.
The RF offset facility can be left by pressing
[EXIT]
to obtain the
RF Level Utility Menu
of
Fig. B-2, or by pressing any of the keys underneath the display. If the offset facility is enabled and
[SIG GEN] is pressed the main signal generator screen shown in Fig. B-4 is displayed. The
display shows that in this example the RF offset facility is enabled and the value of the offset in
use is +20 dB. For the set RF level of 0 dBm the signal generator output will be -20 dBm.