TMA2Q/LPC2Q Tower Mounted Amplifier Instruction Manual
Refer to last page for revision and copyright information, File: TMA2QInstructionManual.doc, Page 15
RF OUT
N-S or RHP
RF IN+dc
E-W
RF IN+dc
N-S
RF OUT
E-W or LHP
ZFBT-282-1.5A+
Bias-Tee
x2 Stacked
N-S Top
E-W Bottom
DQK-50-500S
Quadrature Coupler
Figure 9 ~ LPC2Q internal layout and connection diagram
L
dc
Bias-Tee
C
RF+dc
N-S CCW
RF+dc
RF+dc
E-W CW
Input
+90°
+90°
0°
0°
Isolated
+90°
Output
0°
Output
RF
E-W ~ LHP
RF
RF
RF+dc
dc
Bias-Tee
C
1
2
Power
E-W
N-S
LPC2Q Power Coupler Assy.
10u
50V
10n
50V
ZFBT-282-
1.5A+
ZFBT-282-
1.5A+
DQK-
50-500S
82u
0.8A
R
R
LED
LED
Notes
:
1. For Jameco p/n 637183 (12 V LED), R = Internal
SMA-M
SMA-F
SMA-F
SMA-M
SMA-F
SMA-F
SMA-F
SMA-F
SMA-F
SMA-F
Quadrature
Coupler
On
On
N-F
N-F
N-F
N-F
RF
N-S ~ RHP
2.1x
5.5mm
L
Top
Bottom
4
3
RG174
RG174
SMA-F
SMA-F
SMA-M
SMA-M
SMA-M
SMA-M
SMA-M
SMA-M
SR260
CPS-1M
CPS-1M
Bottom
Top
Figure 10 ~ LPC2Q LNA Power Coupler schematic. Power supplies use modified CPS-1 PCBs