Specifications
18
MATV PRODUCTS
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for all your future needs
MODEL
NEX 401
NEX 402
NEX DAB
NEX 403
NEX 445
NEX 545
Reference
39102…
04
39200
39201
39305…12
39421…
69
39521…
69
Channels
E02…E04
FM 87 ÷
108
DAB 195 ÷
223
E05…E12
21…69
21…69
Max. output level
(DIN 45004K)
dBµ
V
123
115
(DN B-35
dB)
115
(DN B -35
dB)
123
117
125
Gain
dB
40
40
35
40
40
50
Gain adjustment
dB
@
N±1
30
15
30
-
30
-
30
15
30
15
30
15
Bandwidth
MHz
7
21
28
7
8
8
Selectivity
@ -15 MHz
PVN-PAN-1
20
35
23
20
16
16
PAN-PVN+1
dB
20
@ -15 MHz
20
16
16
PV+20 MHz
>70
30
8
70
>70
>70
Return losses
dB
9
Noise figure
dB
11
4
5
11
11
11
Current drawn
(24 VDC)
mA
90
65
65
105
55
110
Input-Output
impedance
Ω
75
Input-Output
connectors
F (f)
Packing dimen-
sions
Mm
195 x 70 x 32
Weight
Kg
0.45
Single channel amplifier, suitable for amplifying and filtering
of TV signals in MATV headend systems. These amplifiers are
perfect for working in adjacent channels.
APPLICATION
Medium- to large-sized community digital and analogue TV installations located in
poor reception areas with big level differences between channels.
CHARACTERISTICS
Metal chassis (zamak), integrating the input/output connectors to give
the unit great strength. High shielding degree. High reliability and
screening factor due to “F” connectors. Modular design that allows
channel configuration according to installation needs. The use of
filters with high "Q" factor (quality factor) inductive lines guarantees a
high channel selectivity. Easy to set-up due to its system of splitting
at input and combining at output.