.
Page
All Rights Reserved
Shyam Telecom Limited
7/43
Next Generation
Signal Enhancement
S
emiconductor transmitters and receivers provide highly reliable performance
when operated in conformity with the intentions of their design.
H
owever, a
semiconductor may be damaged by an electrostatic charge inadvertently
imposed by careless handling.
S
tatic electricity can be conducted to the semiconductor chip from the centre
pin of the
RF
input connector, and through the
AC
connector pins.
W
hen
unpacking and otherwise handling the
R
epeater, follow
ESD
precautionary
procedures including the use of grounded wrist straps, grounded workbench
surfaces, and grounded floor mats.
T
he
RF
repeater mentioned is tested thoroughly for maximum composite power.
There is provision of
ALC
/
APC
(automatic level control / automatic power
control) which limits the output power in DL path and in UL path beyond the
specified limit.
I
t operates in
LTS 700
band – upper C sub-band of
10 MH
z
BW
(
CF
in
UL
781
MH
z &
CF
in
DL
751
MH
z) and
AWS
band
10 MH
z sub-band (
UL
1710-1755MHz,
DL
2110-2155
MH
z).
D
onor antenna and server antenna
must be fixed on permanent structure with enough isolation between donor and
server antenna to avoid any possible oscillations.
4. I
ntroduction
4.1. P
urpose
The purpose of this document is to describe the electrical and mechanical
specifications, operation and maintenance of the
DB6M
D
ual
B
and
R
epeater.
4.2. S
cope
This document is the product description of the Shyam
DB6M
D
ual
B
and
R
epeater for outdoor application.
4.3
.
D
efinitions
AGC
A
utomatic
G
ain
C
ontrol
ALC
A
utomatic
L
evel
C
ontrol
APC
A
utomatic
P
ower
C
ontrol
BCCH
B
roadcast
C
ontrol
C
hannel
BTS
B
ase
T
ransceiver
S
tation
BSEL
B
and
S
elective
