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C3 produces a peak that is centered approximately 300 MHz above the lowest forward
frequency and varied in amplitude by R3. This adjustment provides more mid-band
alignment flexibility.
C6 adjusts for maximum gain at Fmax (870 MHz).
C7 and R8 adjust for the flattest response in the mid- to upper-portion of the band.
C8 adjusts for the flattest response in the low-to mid-range of the band.
L4, on the bottom of the LDR board, may slightly tune the upper portion of the response.
Excessive spreading of L4 will cause insertion loss to increase.
Figure 3-3
8LDR/*/III component layout (top-left, bottom-right)
C1
R1
C2
R2
C3
R3
P1
P2
C7
R8
C6
C8
L5
P4
P3
Amplifier Setup
L4
L6
L7
BLE*/* Installation and Operation Manual
3-7
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