Shure UA830 Manual Del Usuario página 4

ADJUSTING FOR DIFFERENT CABLE LENGTHS
(FIGURE 4)
ADJUSTING FOR DIFFERENT CABLE LENGTHS
FIGURE 4
The longer the coaxial cable connecting the UA830 unit
and the receiver or distribution amplifier, the greater the possi-
bility for signal loss. The UA830 comes with a GAIN switch
that can compensate for signal loss in longer cables. Shure
recommends using the Shure UA825 or UA850 coaxial cable
when remote mounting antennas. NOTE: Use only 50 Ω low-
loss cables (RG-8 or equivalent).
Set the switch according to these guidelines:
UA825 Extension Cable (7.6 m [25 ft]) —Set GAIN
switch in 3 dB position.
UA850 Extension Cable (15.2 m [50 ft]) —Set GAIN
switch in 10 dB position.
If over 15.2 m (50 ft) is required, a maximum of two
UA830's may be chained together. Simply connect
coaxial cable from the U4 or UA840 to the TO
RECEIVER port of the first UA830, then run another
coaxial cable from the TO ANTENNA port of the first
UA830 to the TO RECEIVER port of the second UA830.
Connect the antenna to the TO ANTENNA port of the
second UA830. See Figure 5. The Gain switches for
each UA830 must be adjusted separately. No more
than two may be chained.
TO ANTENNA
INPUT
TO ANTENNA
TO ANTENNA TO RECEIVER
CHAINING TWO UA830'S
FIGURE 5
*To maintain Shure UA825 and UA850 cables in top condition in
permanent installations:
1. Avoid sharp bends or kinks in the cables.
2. Do not deform cables with makeshift clamps, such as bending
a nail over the cable.
3. Do not use cables in permanent outdoor installations
4. Do not expose cables to extreme moisture
6
TO
RECEIVER
TO RECEIVER
English: Print 1-4
SPECIFICATIONS
RF Frequency Range
UA830A . . . . . . . . . . . . . . . . . . . . . . .
UA830B . . . . . . . . . . . . . . . . . . . . . . .
UA830C . . . . . . . . . . . . . . . . . . . . . . .
UA830D . . . . . . . . . . . . . . . . . . . . . . .
Power Consumption (12 Vdc at 76 mA)
1.0 W 0.3 W
Signal Gain
Gain switch at 3 dB: 3.5 dB
Gain switch at 10 dB: 10
Input/Output VSWR
Less than 2.0:1
Third Order Intercept Point (3 OIP)
More than 30 dBm
Connectors
Female, BNC-type
Dimensions (without accessories)
66.7 mm high x 31.75 mm wide x 112 mm deep
(2.625 x 1.250 x 4.40 inches), 108 mm (4.25 in.) high
w/mounting stand
Case
Aluminum die-casting, black painted
Swivel Adapter
Positive-action, break-resistant, adjustable from 0
5
to 90 , with standard / in.-27 thread
8
Net Weight (without cable)
Without mounting stand: 0.28 kg (9.8 oz)
With mounting stand: 0.42 kg (14.8 oz)
OPTIONAL ACCESSORIES
. . . . . . . . . . . . . . . . . . . . . .
1/2-Wave Antenna
Antenna Distribution System
7.6 m (25 ft) Antenna Extension Cable
15.2 m (50 ft) Antenna Extension Cable
* Request compatible frequency range
REPLACEMENT PARTS
. . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Base
For additional service or parts information, please contact
Shure's Service department at 1-800-516-2525. Outside the
United States, please contact your authorized Shure Service
Center.
CERTIFICATION
UA830: Eligible for CE Marking; EMC Approved un-
der ETS 300 445
www.audiovias.com
7
782–810 MHz
854–862 MHz
800–830 MHz
774–782 MHz
2.0 dB
2.0 dB
UA820A
. . . . . . . . . . . . . .
UA840*
. . . . . . .
UA825
. . . . . .
UA850
A13HDB