User's Manual

TX RX Systems Inc. Manual 7-9485-1.9.1 10/26/17 Page 12
should exceed the signal booster’s gain figure
by at least 15 dB.
5) Repeat step 4 again with the signal generator
set at the passband edges in order to see if the
isolation is remaining relatively constant over
the complete width of the passband.
6) Repeat the isolation measurements if neces-
sary at other system passbands to determine
the overall minimum isolation value for the sys-
tem. Physical modification of the antenna sys-
tem maybe required in order to reach an
acceptable minimum value.
RF EXPOSURE
To comply with FCC RF exposure compliance
requirements, a separation distance of at least 69
cm must be maintained between the antennas of
this device and all persons. To comply with IC RF
exposure compliance requirements, a separation
distance of at least 100 cm must be maintained
between the antennas of this device and all per-
sons. This device must not be co-located or operat-
ing in conjunction with any other antenna or
transmitter.
EXPOSITION RF
Pour conformer aux exigences d'exposition de
FCC RF, une distance de séparation d'au moins 69
cm doit être maintenue entre les antennes de cet
appareil et toutes les personnes. Pour conformer
aux exigences d'exposition de IC RF, une distance
de séparation d'au moins 100 cm doit être main-
tenue entre les antennes de cet appareil et toutes
les personnes. Cet appareil ne doit pas être co-
localisé ou exploités en conjonction avec toute
autre antenne ou transmetteur.
SIGNAL FLOW BLOCK DIAGRAM
Figure 4 is the signal flow block diagram of the
standard channelized signal booster model 6138X.
Figure 5 shows the front view of the booster cabi-
net. The channel modules are bi-directional with
each module containing one downlink branch and
one uplink branch. The branches are functionally
identical because the same circuit board designs
are used in each branch. The uplink and downlink
branches may be programmed to any frequency in
the appropriate band.
Uplink and Downlink Input Signals
Uplink input signals (794 - 806 and 806 - 824) are
picked up by the DAS antenna and applied to the
triplexer. The uplink input signals pass through the
triplexer and are fed into a directional coupler
Channel Module
3-23350-1
Channel Module
3-23368-1
Control Module
3-23360-1
Hybrid
Coupler
3-5688
Hybrid
Coupler
3-5688
Power
Amp
3-23665
Power
Amp
3-23665
Power
Amp
3-23665
Line
Filter
8-23887
Triplexer
8-23088
Triplexer
8-23088
Donor
Antenna
AC
In
DAS
Antenna
Power Supply Module
+28VDC & +6VDC Output
3-23912
RF Connections
+6V Power
+28V Power
Communications
Figure 4: Signal flow block diagram of the channelized signal booster.
Dual band high power model shown as an example.