Zeck Audio d.a.i.sy Mode D'emploi page 12

8
DS 2A
RF RECEIVE
+
0
A
MUTE LOW O.K. CLIP
2 channel diversity aerial interface system
9 11 13
10 12
15 18
CH 11 176,0
220/240 V MHZ
! 50/60 Hz S.N. 3017 9001 Y
CH 12 179,1
MHZ
DISCONNECT MAINS PLUG
BEFORE REMOVING COVER
2 1
3
UNBALANCED BALANCED
1 = SHIELD
SHIELD
2 3 1
2 = + LIFE
LIFE 3 = – LIFE
Receiver
The d.a.i.sy wireless system is available as a single-channel and dual-channel version. Be-
sides the number of channels, all features and operating modes of the channels are exact-
ly the same for both versions. For a disturbance-free reception, the receiver should not be
placed near devices, which produce parasitic oscillations. Digital equipment, such as sound
processors, keyboards or personal computers, is particularly suspicious to be a source of
spurious interference, and the receiver, especially the antennas, should be kept away from
these devices.
22
owner´s manual
R
RF RECEIVE
+
POWER
0
B
MUTE LOW O.K. CLIP
14
19 16 17
B
A 112
OUTPUT B OUTPUT A Z
351 E RF
T
-6 -3 -6 -3
-15 -15
-20 -20
-∞ 0 -∞ 0
dB dB
ZECK wireless system · made in Germany
owner´s manual d.a.i.sy wireless system, © Zeck Audio 8/96
owner´s manual
Antennas
The two supplied telescope antennas (8) plug into the two antenna sockets and are
locked with the swivel nuts. For an alignment of the antennas, these nuts must be untigh-
tened until the antennas can be moved sideways without effort. Both antennas should be
always drawn out to their entire length and face each other at right angle (90 degrees,
not parallel) to ensure a reliable and clear receiving quality. To fully benefit from the sy-
stem's diversity operation potential, both antennas have to be connected to the receiver.
Outputs
The receiver is equipped with both balanced XLR (16) and jack (17) outputs. The jack out-
put can be run unbalanced simply by using a monaural jack plug.
Inserting a monaural plug into the output jack automatically also switches the XLR output
to unbalanced operation with the output signal at pin 3. Pin 2 becomes connected with
ground on pin 1.
The level control (19) on the back of the unit allows to match the receiver`s output to sub-
sequent devices. The dual channel version provides individual level controls for each chan-
nel. Electric guitar and bass players, who want no change in volume compared to the use
of an instrument cable, have to set the receiver's output level control for unity gain after
the input gain of the transmitter has been set (see page 29). For instruments with low
output (single-coil pickups), the control should be set –3 dB, and fully clockwise (0 dB) for
high-output instruments (active electronics).
Turning the receiver on
The mains power supply switch (14) for the receiver is located on the front panel.
'RF receive' indicator (10)
This LED indicates when the receiver is detecting an rf (high frequency) carrier signal from
the transmitter. This rf carrier signal is present whenever the transmitter is turned on, no
matter whether an audio signal is transmitted or not. A lit "RF receiving" LED with the
transmitter turned off indicates a superimposed carrier signal from another rf source. If
this rf carrier source cannot be eliminated and/or the receiver put into another position
successfully, a disturbance free operation of the affected channel is not possible.
Audio level indicators (11, 12, 13)
The audio level of the signal transmitted to the receiver is displayed by three LED indica-
tors labled 'low', 'o.k.' and 'clip'. It can be reduced or increased by means of the gain ad-
justment screw (1) on the transmitter (see below for adjustment hints). The output level
control on the back panel of the receiver (19) does not affect these indicators, as it has no
effect on the incoming signal.
Noise suppression adjustment (9)
The recessed 'mute' control screw (9) can be used to adjust the noise suppression
('squelch') threshold. It must be noted, however, that this control has been factory pre-ad-
justed for best noise performance. There should be no need for readjusting, except in ex-
tremely difficult transmission conditions, which become apparent by audible noise bursts.
In this case, the adjusting screw has to be rotated clockwise a little bit. If 'drop outs' in the
sound occur across long transmission distances, the adjusting screw must be rotated counter-
clockwise. As a rule, always set the 'mute' control as much counterclockwise as possible.
owner´s manual d.a.i.sy wireless system, © Zeck Audio 8/96
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