LOCAL OPERATION
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on the screen apply to that source; for example, when the A panel is highlighted, the displayed
carrier frequency, RF level, modulation etc., apply only to the A source. The selected signal
source can be changed using the [A], [B] and [C] hard keys.
The RF output from a source may be directed to its own output socket, or re
-routed via the
combiner (either alone or in combination with other sources) to the combiner output socket.
Signal sources are combined using a menu accessed via the [SETUP] hard key.
The designation A
Ö
O/P shows that the A source output is directed to the RF OUTPUT socket
for the A source. When A
Ö
Σ
is displayed it shows that the A source output is directed to the
combiner.
When no signal source is connected to the combiner the combiner panel shows
Σ
not used. When
appropriate not fitted is shown against source designator C.
When one or more sources are connected via the combiner to the COMBINED RF OUTPUT
socket, the combiner panel displays this information by showing all combinations from
Σ = Α
to
Σ =
A+B+C
.
Note that the signal source field is displayed in all modes.
Carrier frequency field
This shows the current carrier frequency setting for the selected signal source. This field is
controlled by the [Carrier Freq] soft key.
When the frequency of the selected source is coupled to another source (so that it tracks it), an
arrow is shown together with the other source’s identity. In Fig. 3
-4 for example, the B source is
shown coupled to the A source by the A source panel being highlighted and
Ö
B being shown in
the carrier frequency field.
RF level field
This shows the current RF level setting for the selected signal source. This field is controlled by
the [RF Level] soft key.
When the level of the selected source is coupled to another source, an arrow is shown together
with the other source’s identity (as for frequency coupling).
Frequency standard field
The type of standard is shown in this field together with its frequency. Frequency standard
selection is made from a menu accessed via the [UTIL] hard key.
This field also displays Atten Lock when the attenuator lock function is enabled.
Modulation state field
Here the modulation state is shown as either ENABLED or DISABLED. This is controlled by the
[Mod ON/OFF] key which switches all internal modulation on or off.
When pulse modulation is selected, Pulse ON or OFF is shown (an additional soft key [Pulse
ON/OFF] also appears).
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General