頁面 6, Gnd lift, Receiver installation – MIPRO ACT-71 Wideband Single-Channel True Diversity Receiver User Manual

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True Diversity Receivers

True Diversity Receivers

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1.

Antenna Installation: Install 2 separate antennas on the antenna sockets ,

on the rear panel. Illustrated in Figure 1.

2.

AC Power Operation: Connect the AC power cable to the AC Input Jack , then

plug the other end into an AC outlet having the correct voltage and rating, as shown

in Figure 1.

3.

Audio Output Connection:

RECEIVER INSTALLATION

(Figure 1)

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Level Switch Setting Position: When connecting from the receiver's

unbalanced ¼” output (ACT-71 only) to the "LINE-IN" jack of a mixer or an

electric guitar amplifier, switch the Level Switch to the “+16dB” position. Low

sensitivity may occur if switched to the wrong level position; therefore, don't use

the “0dB” or “-6dB” positions as they may not deliver a sufficiently high level of

input. When connecting from a receiver's balanced output to the "MIC-IN" jack of

a mixer, switch the Level Switch to the “0dB” position. Overload distortion may

occur if switched to the wrong level position. There are many different amplifiers

for Karaoke machines in today's market; however, the gain of many of these

amplifier's "MIC IN" is not consistent. Therefore, if distortion is encountered,

please switch the Level Switch to the “-6dB” position.

Mixed Output: Balanced output socket (XLR) must connect to the balanced input

socket of the mixer. This output socket generates the mixed output of Ch.1~Ch.4

and the output sensitivity can be adjusted to “+16dB” or “0dB” or “-6dB” by the

level switch on the right side of the socket. (ACT-72/ACT-74)

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CH 1

CH 2

CH 3

CH 4

MIXED

REMOTE

ANTENNA A

+8V DC BIAS

ANTENNA B

+8V DC BIAS

OUT

IN

3: COLD -

1: GND

+

2: HOT

3

2

1

LEVEL

This connector can not be connected
to telecommunication networks.

BALANCED OUT

AC INPUT: 100~240V

-6dB

0dB

GND

LIFT

+16dB

(Figure 2)

(Figure 3)

COLD

-

GND

+

HOT

1

2

3

2

1

3

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Electric Guitar Output: Using audio output cable with ¼” “phone plug” type

connectors, plug one end into the unbalanced output jack of a receiver (ACT-71

only), and the other end into the input jack of a guitar amplifier. Switch the Level

Switch to “+16dB” position (the switch will show “+16dB” on the receiver, but

actually puts out “+10dB” on the unbalanced jack).

Unbalanced Output: Using an audio output cable with ¼” “PHONE PLUG” type

connectors, connect one end from the unbalanced output jack of the receiver,

and the other end to the “LINE-IN” input jack of the mixer or guitar amplifier, as

shown in Figure 2. (ACT-71 only)

Balanced Output: Using audio output cables with “XLR” or “Cannon” type

connectors, connect one end to the balanced output jacks of the receiver, and

the other end to the “MIC IN” input jack of the mixer or amplifier, as shown in

Figure 1. (The configuration of the 3-pin connector is as shown in Figure 3)

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