Figure 1
Line Bi -Directional Am plifier
BLOCK DIAGRAM
Rx/T x D U P LE XE R
R x
BP F
T x
BP F
R x/T x D U P LE XE R
BIA S T E E
R x
BP F
Tx
B P F
B IAS T E E
A M P
A M P
V a r ia b le
Atte n ua tor
A M P
A M P
V a r ia b le
Atte n ua tor
Variable attenuators
and AGC are optional
AC
Power
Supply
Bias Tee’s are optional