Operation Of The Power Supply Cont. Switch; Antenna Switch Mode - JRC JRL-2000F Manual

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6
BASIC OPERATION
6.2.1
lmportant
The JRL-2000F has two distinct two operating states: OPERATING and STOPPED.
• OPERATING: This applies to any of the operating modes described above
(Antenna Switch Mode, Antenna Tuner Mode or Linear Amplifier Mode). While
in the OPERATING state, the JRL-2000F can also be controlled by the supplied
Remote Control Unit (NCH-365). Upon entering the OPERATING state, the JRL-
2000F automatically returns to the last set of Operating parameters that were
used (antenna selection, tuner settings, etc.).
• STOPPED: When all power is cut oft from the JRL-2000F, it is considered to
be in the STOPPED state. All functions are inoperable, and RF output from the
exciter is not supplied to the antenna. Also, control via the supplied Remote
Control Unit (NCH-365) is not possible.
Operation of the POWER SUPPL V CONT. switch
The JRL-2000F power supply is controlled according to the setting of the POWER
SUPPLY CONT. switch on the rear panel.
When it is set to EXTERNAL
The power supply is controlled according to the state of the valtage applied to pin
14 of the 15-pin control connector. See section 4.2.2 for connection details.
• When a valtage of 12-15 VDC is applied, the JRL-2000F is switched to the
OPERATING state (power ON).
• lf no DC power is applied to pin 14, the JRL-2000F will be in the STOPPED state.
When it is set to ON
The amplifier is continuously in the OPERATING state.
6.2.2 Antenna switch mode
The JRL-2000F operates as an antenna switch when it is in the OPERATING state
and the I POWER
I
switch is set to the OFF position. The selected antenna ( 1, 2, 3 or
4) is indicated by the LED on the ANTENNA switch buttons.
Even if the IPOWER I switch is set OFF, if the JRL-2000F is in the OPERATING state
the unit can function as an antenna switch and operation can be performed with the
Remote Control Unit (NCH-365)
Exciter
r----------,
I Antenna I
~-4~ ~~--~
1
switch
1
L - - - - - - - - . J
Antenna
JRL-2000F
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