System Description Chapter 2

10-kW UHF Transmitter with Chapter 2, System Description
Feedforward Driver
840A, Rev. 0 2-16
FUNCTION REMOTE JACK/PIN
NUMBER
INTERFACE TYPE
Bias Voltage Rtn J6-16
Filament Voltage Metering J6-17
Filament Voltage Rtn J6-18
1V full scale at 1 kΩ source
resistance
Aural Forward Power
Metering
J6-20
Aural Forward Power Rtn J6-21
1V full scale at 1 kΩ source
resistance
Note: The remote control interface connections for the 10-kW amplifier connect
to jacks J1, J4, J5, and J6 of (A10) the remote control and cabinet interface
assembly mounted to the rear and at the top of the amplifier cabinet.
The remote connections listed in Table 2-
16 are only made if the (A12) A/V input
and remote interface assembly are
present in the system. The remote
connections are made to jacks J9 and J10
on the assembly. Refer to the
interconnect drawing (1064945) for the
proper pin remote connections.
Table 2-16. UHF Exciter Remote Control Interface Connections
FUNCTION REMOTE CONTROL/PIN
NUMBER
INTERFACE TYPE
Transmitter Enable Interlock J9-21
Transmitter Enable Interlock
Rtn
J9-22
J9-21 and 22 must be
jumpered together for
normal operation; (1176-
1038) jumper jack should
be used
Remote Control Commands
Transmitter Standby
(Disable)
J9-9
Contact closure
Transmitter
Standby/Operate Rtn J9-10
Transmitter Operator
(Enable)
J9-11
Contact closure
Transmitter Manual J9-15 Contact closure
Transmitter Auto/Manual
Rtn
J9-16
Transmitter Auto J9-17 Contact closure
Power Level Raise (optional) J9-27 Contact closure
Pwr Lvl Raise/Lower Rtn
(optional)
J9-28
Power Level Lower
(optional)
J9-29
Contact closure
Modulator Select (optional) J9-31 Contact closure