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Electret Condenser
Microphone
Operating Instructions
Manual de instrucciones
Mode d'emploi
Bedienungsanleitung
ECM-166BMP/122BMP/121BMP/77BMP/
44BMP
Sony Corporation
1997 Printed in Japan
English
The ECM-166BMP/122BMP/121BMP/77BMP/44BMP
Electret Condenser Microphone is designed for use with a
transmitter having a 3-pole minijack with a lock mechanism
used in a Sony 800-MHz band wireless microphone system.
Connecting to the Transmitter (See fig. A.)
1
Connect the output connector of the microphone to the
input connector of the transmitter.
2
Turn the lock ring to lock.
3
Set the PHASE switch of the transmitter as follows.
ECM-166BMP/122BMP/121BMP: =
ECM-77BMP/44BMP:
Specifications
General
Type
Electret condenser
Power requirements
3 to 10 V DC (supplied from
an external device, such as a
Sony transmitter)
Current consumption
0.4 mA or less
Cable
ECM-166BMP/122BMP/
121BMP/44BMP:
2.3mm (
3
/
inches) dia., 2-
32
conductor shielded cable
3
ECM-77BMP: 2mm (
/
32
inches) dia., 2-conductor
shielded cable
Cable length
ECM-166BMP/122BMP/
77BMP/44BMP: Approx.
1.2 m (3.9 feet)
ECM-121BMP:
7
Approx. 0.2 m (7
/
inches)
8
Connector
3-pole mini phono plug (3.5
mm (
5
/
inches) dia.) with a
32
lock mechanism
Mass (microphone only, without cable)
ECM-166BMP: Approx. 3.5 g
(0.12 oz)
ECM-122BMP/121BMP:
Approx. 3 g (0.1 oz)
ECM-77BMP: Approx. 1.5 g
(0.05 oz)
ECM-44BMP: Approx. 2 g
(0.07 oz)
Design and specifications are subject to change without notice.
ECM-44BMP
ECM-77BMP
ECM-166BMP
1. OPERATION
3-860-338-04(1)
Dimensions (microphone only)
ECM-166BMP:
12.5 dia.
23.5 mm
(
1
/
dia.
15
/
inches)
2
16
ECM-122BMP/121BMP:
8.5 dia. 17.0 mm
11
11
(
/
dia.
/
inches)
32
16
ECM-77BMP:
5.6 dia. 12.5 mm
1
1
(
/
dia.
/
inches)
4
2
ECM-44BMP:
8.5 dia. 14.5 mm
(
11
/
dia.
19
/
inches)
32
32
Accessories supplied
Holder clip (1)
Wind screen (1)
Operating Instructions (1)
Performance
Frequency range
ECM-166BMP/122BMP/
121BMP:
100 to 10,000 Hz
ECM-77BMP:
40 to 20,000 Hz
ECM-44BMP:
40 to 15,000 Hz
Directivity
ECM-166BMP: Uni-
directional
ECM-122BMP/121BMP/
77BMP/44BMP:Omni-
directional
Output impedance
2.5 kohms 30% at
1000 Hz, unbalanced
ECM-44BMP/ECM-77BMP/ECM-166BMP
A
ECM-166BMP/122BMP/
121BMP/77BMP/44BMP
2
1
B A TT
C H
S E T
+
3
–
This section is extracted
from operation manual.
1
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