Your flexible CATV solution provider
COMTECH
GYŐR
HUNGARY
MDA1200D
Distribution amplifier
The MDA1200D
line/house
amplifier provides
a possibility for a
really fast and
simple alignment
by using rotary
switches.
DOCSIS3.1 compliant
forward path
DOCSIS3.1 compliant
return path
Unidirectional ingress
blocking system
applicable
Rotary switch alignment
Cost effective solution
COMTECH Kft. © 1990-2016
H-9028 Győr, Török Ignác u. 66.
The moduleless
ready-to-use
construction, the
interruption-free
(re)alignment, the
programmable
breakpoint frequencies and the
exchangeable
diplex filters make
the device a
valuable element
of Your network.
The amplifier can
be ordered also
with ingress
blocking option.
Tel.: +36 (96) 412 299 | Fax: +36 (96) 511 200
E-mail: mail@comtech.co.hu | WEB: www.comtech.co.hu
Technical specifications
Gain [dB]
Forward path
Bandwidth [MHz]
47...862/1000/1218
28
Flatness [dB]
±0.5
44
64 QAM MER [dB]
35 (4)
±0.5
Noise figure [dB]
4.0
18@40 MHz – 1.5 dB/dec
Level setup [dB]
0...15 (3 dB steps)
116 @ 1218 MHz
Slope setup [dB]
0...15 / 5...20 (3 dB steps) (3)
Gain [dB]
Flatness [dB]
Return loss [dB]
(1)
Maximum output level [dBuV]
CTB [dBc]
-74 (2)
Ingress control switch [dB]
CSO [dBc]
-70 (2)
General
XMOD [dBc]
-65 (2)
Powering [VAC] /remote power
Noise figure [dB]
6.0
TP attenuation [dB]
30
0 / -6 / -50 / HPF20 (3)
230 ± 20%
/local power
30...65 sin; 35...90 sqr
Power consumption [W]
Max. 15
Input level setup [dB]
0...15 (3 dB steps)
Hum modulation [dB]
70 (remote powered)
Input slope setup [dB]
0...15 (3 dB steps)
Max. current feed trough [A]
10 (remote powered)
Mid-stage level setup [dB]
0...10 (2 dB steps)
Protection class
IP65 (rem) / IP54 (loc)
Mid-stage slope setup [dB]
0...16 (3 dB steps)
Connectors
PG11, (5/8", F)
Dimensions [mm]
202 x 146 x 80
Return path
Bandwidth [MHz]
5...30/65/85/204
(3)
Weight [kg]
1.5
(1) Switchable
(2) Measured with 79 analog channels plus digital QAM channels to 1002 MHz, 114 dBµV output power and 15.6 dB tilt referenced to 1 GHz.
(3) Depends on the installed retrurn path configuration module containing the diplex filters and optional unidirectional ingress blocking switch (RIB).
(4) 16 channels, 115 dBµV/Ch.
Block diagram
230 V AC
SUPPLY
MDA1200D
locally powered
AC FUSE
AC
AC IN
DC
DC IND
RF
+ 12 V DC
ATT
EQ
CS
PRE AMP
INT. ATT
INT. EQ
POST AMP
0/10dB
DIPLEX
FILTER
H
EQ
L
REV A2
ATT
REV A1
SWITCH
DIPLEX
FILTER
H
L
RIB
SW1
-30dB
-30dB
TP
TP
SP
or
DC
AC
BYPASS
AC
BYPASS
AC
BYPASS
AC FUSE
10 A
SURGE
PROT.
IN
COMTECH Kft. © 1990-2016
H-9028 Győr, Török Ignác u. 66.
SURGE
PROT.
SURGE
PROT.
OUT1
OUT2
Tel.: +36 (96) 412 299 | Fax: +36 (96) 511 200
E-mail: mail@comtech.co.hu | WEB: www.comtech.co.hu