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Putting the receiver into operation
16
Connecting and positioning remote antennas
Use remote antennas when the position of the double receiver is not the
best antenna position for optimum reception. Remote antennas are
available as accessories.
̈ Connect the remote antennas to the BNC sockets O and R using a low-
attenuation 50-Ω coaxial cable.
̈ If you connect active antennas (e.g. A 3700, AD 3700) or antenna
boosters (e.g. AB 3700), switch on the DC supply voltage for external
active antennas and antenna boosters (see page 32) so that the
LEDs N and/or S light up;
if you do not connect active antennas or antenna boosters, switch off
the booster supply voltage so that the LEDs N and/or S do not light
up.
̈ Position antennas in the same room in which the transmission takes
place! Maintain a minimum distance of 1 m between antennas and a
minimum distance of 50 cm between antennas and metal objects
(including reinforced concrete walls).
Daisy chaining receivers
The receivers feature an integrated antenna splitter so that up to eight
receivers can be daisy chained using the supplied short antenna daisy
chain cables. The type plate U indicates the daisy chained frequency
range.
̈ Connect the two supplied antennas or two remote antennas (available
as accessories) to the BNC sockets O and R at the rear of the first
receiver.
̈ Use the supplied 50-Ω antenna daisy chain cables to daisy chain the
receivers as shown in the diagram on the left.
N
OP
Q
R
S
Ready-made coaxial antenna cables from Sennheiser are available
as accessories with length of 1m, 5m and 10m (see “Accessories”
on page 45).
If the booster supply voltage is switched on (see page 32), it
remains switched on even when the receiver is switched off.
ANT A ANT B
V
The antenna signals are also daisy chained when a receiver is
switched off. If the booster supply voltage is switched on (see
page 32), it remains switched on even when the receiver is
switched off.