Applications And Accessories - Monacor International JTS US-8001D/1 Mode D'emploi

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3 Applications and Accessories

Together with the transmitters PT-850B/ 1 or MH-850/ 1,
the UHF PLL receivers US-8001D/ 1 (1 receiving unit)
and US-8002D/ 1 (2 receiving units) make up a wire-
less audio transmission system. For transmission,
16 channels are available in the UHF frequency range
of 863 to 865 MHz.
The receivers operate with "diversity" technique:
The transmission signal is received by two antennas
placed at a distance from each other. An electronic
system will select the signal of the higher quality and
pass it on to the input of the receiving unit(s).
The following transmitters from the product range
of JTS can be used together with the receivers
US-8001D/ 1 and US-8002D/ 1:
MH-850 / 1 order No. 25.4460
Dynamic hand-held microphone with integrated trans-
mitter
PT-850B / 1 order No. 25.4470
Pocket transmitter with Lavalier microphone
For installing the receiver into a rack (482 mm/19"),
the bracket DR-900SET (order No. 24.4770) which
is able to accept two receivers is available from JTS.
The bracket requires a height of 1 RS (1 rack space =
44.5 mm) in the rack.
4 Connection
1) For connection to the subsequent unit (e. g. mixer,
amplifier), the following audio outputs may be used:
XLR jack (8) for connection to a microphone input
In order to be able to feed the two audio signals
transmitted to two separate inputs, model
US-8002D/ 1 is provided with two jacks for the
receiving units CH 1 and CH 2.
unbalanced 6.3 mm jack (9) for connection to a
highly sensitive line input (a matching connec-
tion cable is supplied)
With model US-8002D/ 1, the mixed signal from
the receiving units CH 1 and CH 2 is available
here.
2) For power supply, connect the power supply unit
provided to the jack (11), then connect it to a mains
socket (230 V~ / 50 Hz).
3) To prevent accidental disconnection of the plug of
the power supply unit from the jack (11), lead the
cable around the hook (10) for strain relief.
8
5 Operation
1) Switch on the receiver with the POWER switch (2).
The power LED (3) lights up. The outputs (8, 9) will
be muted until a radio signal of sufficient power is
received.
2) Put the antennas (1) in a vertical position.
For model US-8002D/ 1, make the following adjust-
ments separately for each receiving unit.
3) Before switching on the transmitter, set the receiver
to a transmission channel which is free and free
from interference: For this purpose, turn the rotary
switch CH (4) correspondingly by means of the
small adjusting key supplied. Via the audio unit
connect ed to the output, no interference or signals
of other transmissions must be audible and the
reception LED RF (5) must not light up.
9
13
Example
Channel 12 is adjusted
The 16 transmission channels are assigned to the
following transmission frequencies:
Channel
Frequency
1
863.125 MHz
2
863.250 MHz
3
863.375 MHz
4
863.500 MHz
5
863.625 MHz
6
863.750 MHz
7
863.875 MHz
8
864.000 MHz
Note: If other wireless transmission systems are
operated with this wireless system at the same
time, the radio frequencies of the individual sys-
tems should be carefully matched to each other to
prevent interference.
4) Set the transmitter or the wireless microphone to
the same channel adjusted on the receiver and
switch it on (see instruction manual of the transmit-
ter). On the receiver, the reception LED RF (5) must
light up: red or green, depending on the antenna
receiving the more powerful signal. If the LED RF
does not light up, check
Channel
Frequency
9
864.125 MHz
10
864.250 MHz
11
864.375 MHz
12
864.500 MHz
13
864.625 MHz
14
864.750 MHz
15
864.875 MHz
16
865.000 MHz

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