Reeve LPC2Q, Instruction Manual

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TMA2Q/LPC2Q Quadrature Tower Mounted Amplifier Instruction Manual
Refer to last page for revision and copyright information, File: TMA2QInstructionManual.doc, Page 3
II. Installation
A. Antenna Polarizations
Antenna installation is beyond the scope of this document and only polarizations are discussed here. The
TMA2Q/LPC2Q assemblies are designed to be used with a cross-polarized log periodic dipole array having a
frequency range of 50 to 500 MHz (for example, the Create Design CLP5130-1X). To reduce the effects of ground
reflections, the antenna should be oriented with the dipole elements at a 45° angle with respect to horizontal.
L
dc
Bias-Tee
C
RF OUT+dc
CCW
RF+dc RF OUT+dc
CW
RF IN
CW
RF
RF+dc
dc
Bias-Tee
C
TMA2Q Tower-Mounted Amplifier Assy.
ZFBT-282-
1.5A+
ZFBT-282-
1.5A+
SMA-M SMA-F
SMA-F
SMA-M SMA-F
SMA-F
SMA-F
RA
N-F
N-F
N-F
RF IN
CCW
L
Top
Bottom
SP-1
SP-1
Bottom
LP1
AD1
VL1
RF
LP2
AD1
VL2
+20 dB
AM1
OUT IN
+20 dB
AM2
OUT IN
N-F
210
mm
SMA-F
RA
210
mm
Top
Bottom
N-F N-F
SMA-M
RA
SMA-M
150 mm
SMA-M
RA
SMA-M
150 mm
VOut
VOut
VIn
VIn 150 mm
150 mm
75 mm
75 mm
Earth
Top
Rear View
CW
Coaxial Cable
(Red)
Coaxial Cable
(Green)
To LPC2Q
CCW
Cross-Polarized
Log Periodic Dipole Array
RG174
RG174
RG174
RG174
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
Callisto No. 1
LHP
Callisto No. 2
RHP
Power Supply
11 … 15 Vdc
Power Supply
11 … 15 Vdc
Y
Cable
To
TMA2Q
CPS-1M
CPS-1M
Bottom
Top
Figure 2 ~ Block diagram showing antenna polarizations and corresponding connections to the TMA2Q (upper), LPC2Q and
receivers (lower). When viewed from the rear of the antenna toward the front, the CCW (Red reference) connector is