FIRST TIME USE
3-13
Combiner summary
The [
Σ
] hard key may be used to display a summary of all the sources’ frequencies and levels and
provides an easy means to change these parameters. This menu is also used to implement the
attenuator lock function for each individual source. The function inhibits operation of the step
attenuator from the level at which the key is enabled, and is usable for a level reduction of at least
10 dB.
(1) Press the [
Σ
] hard key to show the
Combiner Summary
similar to that shown in Fig. 3-7
below.
B3887
Fig. 3-7 Combiner summary
(2) You can reset the carrier frequencies and RF levels for each of the sources fitted in your
instrument. Press the
[Carrier Freq]
or
[RF Level]
key for the applicable source, enter the
new value on the key pad and press a terminator key.
(3) To display the individual signal source settings press the required [A] or [B] key.
(4) To implement the attenuator lock function, press the
[Atten Lock]
key for the required A or B
source.
Atten Lock
is shown on the menu (and also shown on the Signal Generator menu)
against the appropriate source parameters.
