TX RX Systems 434B-83H-01-M-110/48, Инструкция по установке и эксплуатации

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7;5;6\VWHPV,QF Manual 7-9547-1 12/09/14 Page 31
PERIODIC MAINTENANCE
The following procedures can be followed as part
of a periodic maintenance program.
1) Bird Technologies recommends that tests for
establishing the performance level of the sys-
tem, as outlined in this manual, be performed
every six months.
2) Because it is possible that the current alarms
may not detect a fault affecting RF gain, we rec-
ommend measuring system sensitivity every six
months and comparing this value against the
recorded value.
3) A yearly inspection of the tower box is also rec-
ommended. Inspect and tighten any loose con-
nectors or other hardware.
4) All feedline connections should be inspected for
tightness and waterproofing integrity. Water
seeping into the transmission lines will cause
system degradation.
RECOMMENDED SPARE PARTS
There are no recommended spare parts for the
TTA system.
OPTIONAL EQUIPMENT
Optional equipment can be purchased from Bird
Technologies in order to increase the performance
of your TTA system. These include a narrowband
filter as well as a multicoupler expansion deck. The
narrowband filter is designed to help limit the band-
width of the multicoupler unit. The multicoupler
expansion deck will increase the total multicoupler
outputs to 32.
Multicoupler Expansion Deck
The multi-coupler expansion deck (part number 75-
83K-01) includes a 16-way divider mounted on a
19 inch deck as shown in
Figure 18
. The divider is
designed to be connected to the expansion port
output on the back of the base unit. With this option
installed, a total of 32 system receivers can be con-
nected, with the system gain remaining constant
for all receivers. A cable is provided for connecting
the expansion deck to the base unit. It is recom-
mended that the multicoupler expansion deck be
Figure 18:
Multicoupler Expansion Deck model number 75-83K-01.