Справочник Пользователя для EMCEE Broadcast Products MBSR100MW
Installation Instructions
MBSR100MW
MBS
Repeater
U.S Patent #4,791,717, #5,020,149
READ ME FIRST!
The EMCEE MBSR100MW is a professional solid state low-power MBS Band
retransmission repeater (amplifier) system, and is formed from a combination of
a pre-selected frequency input pre-amplifier module (P/N 701007) and an AGC
controlled 100mW post amplifier module (P/N 50800002A), each of which is in a
separate chassis/housing and connected via an interconnecting coaxial cable
with Type ‘N’ connectors. The system is capable of retransmitting from one to
seven MBS channels with either analog NTSC or digital modulation. The system
provides an end-to-end electrical gain typically 70dB. The system has no
frequency generating circuits, and as such, the output carrier frequencies and
modulations are dependent on the inputs. The pre-amplifier contains a dual
section inter-digital filter system which provides high Q MBS pass-band circuitry
at the input stage. This is to prevent pre-amplifier input overloads due to out of
band interference from close stations utilizing the LBS and UBS bands. The input
pre-selection also prevents the retransmission of out of band signals. The output
(post) amplifier has an output AGC range of 20dB, with a 20dBm average power
output power threshold. The AGC circuitry is designed to provide a constant low
distortion output with varying input signal power levels due to fades and other
signal anomalies.
The system has the following average output power capability:
1 Channel @ 20dBm/Channel ±1dB (20dBm Composite Power)
2 Channels @ 17dBm/Channel ±1dB (20dBm Composite Power)
4 Channels @ 14dBm/Channel ±1dB (20dBm Composite Power)
7 Channels @ 11dBm/Channel ±1dB (20dBm Composite Power)
Warning: DO NOT EXCEED 20dBm Composite Power Output!
PLANNING the INSTALLATION
Proper installation pre-planning will yield the best performance of the installed
system.
DANGER
WATCH FOR
WIRES
You can be KILLED!
If this product comes near
electric power lines.