TM 11-6625-2398-14-4
CHAPTER 3
OPERATING INSTRUCTIONS
Section I. OPERATOR'S CONTROLS AND CONNECTORS
3-1.
Hybrid Attenuator 1A1A1, Operating Control,
Table 3-1. Operating Control Cable and Connectors-
Cable and Connectors
Continued
Control cable
The following table provides a description of the control,
or connector
Function
cable and connectors located on the front panel of hybrid
to the hybrid junction. When used as
attenuator 1A1A1.
an input connection, rf signals applied
at down) at both RF SUM jack J2 and
Table 3-1. Operating Control Cable and Connectors
CPLR IN jack J3. When used as an
Control, cable
output connection, rf signals applied at
or connector
Function
either the RF SUM jack 32 or CPLR IN
ATTENUATOR
jack J3 appear in attenuated form
control AT1
(approximately 3db down) at this jack.
variable
RF SUM jack
attenuator)
Continuously variable control of the
J2
Permits connections of external
attenuation between ATTEN OUT
equipment to the hybrid junction.
jack J4 and ATTEN INIRF DIFF jack
When used as an input connection, rf
J5 (from O to 25 db)
signals applied at this jack appear (less
ATTEN IN/RF
insertion loss of cables and hybrid
DIFF jack 5
Permits connection of external
junction) at CPLR IN jack RF in/OUT
equipment to ATTENUATOR AT1
jack J1. May also be used as an output
ATTEN OUT
connection when RF signals are
jack J4
Permits connection of external
applied at RF INIOUT jack J1.
equipment, or the hybrid junction of
CPLR IN jack
the hybrid attenuator to
J3
Permits connection of external
ATTENUATOR AT1
equipment or ATTENUATOR AT1 (via
Cable A1W3
Permits series connection of
A1W3) to the hybrid junction. When
ATTENUATOR AT1 and the hybrid
used as an input connection, rf signals
junction by connecting ATTEN OUT
applied at this jack appear (less
jack J4 to CPLR IN jack J3
insertion loss) at RF IN/OUT jack J1.
RF IN/OUT
May also be used as an output
JACK J1
Permits connection of external
connection when rf signals are applied
equipment
to RF IN/OUT jack J1.
3-1
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