HC3
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User Manual
Rev. 1.0L - 16/05/01
5.3.1
RF Power switch menu (Fnc)
From this menu, the user can “switch” ON and OFF the hybrid coupler.
The result of this command is that when the HC3 is put in OFF mode, the inner
conductor of the “Alarm” connector is shorted to ground, so that the exciter is put
in stand-by mode (this will happen only if provided with an interlock connector, and
if correctly connected with the hybrid coupler). At the same time, the auxiliary
mains output is opened, so that if an exciter is connected to it, il will be shut off.
Whe the hybrid coupler is switched OFF, the software waits a few minutes to
permit the proper cooling of the device, and then sends a signal to the relays of
the blowers to turn them off too.
Each two hours, while the machine is OFF, the software enables the blowers for a
while to dissipate the heat generated by the circuitry and to avoid possible
malfunctions of the blowers due to long inactivity periods.
Switching ON again the hybrid coupler, the interlock circuit is opened, reenabling
the power emission in the connected exciter, the auxiliary mains plug supply is
powered and the blowers are restarted.
5.3.2
Power menu (Pwr)
This multi-line scrollable menu allows the user to read all the measurements related
to the behaviour of the power section of the combiner:
•
Forward Power (Fwd Pwr)
•
Reflected Power (Rfl Pwr)
•
Standing Wave Ratio (SWR) (Not active)
•
Input Power (Inp Pwr) (Not active)
•
Rejected PWR (Rej PWR)
Depending on the configuration of the machine, some of the measures could be
deactivated.
The complete aspect of the screen is the following figure (please note that only
two lines at a time are visible, use the UP and DOWN buttons to scroll):
