The MB1000 bridger amplifier works with 2 independent output stages, the second one of them can be divided
symmetrically or asymmetrically by a passive module. They have a common gain and slope control option, while
the 2 independently fed lines have 2 independently managed automatic ingress switches. The device is available
with 3 different gain values. Based on this and on the modular style the amplifier can act as a key part of a larger
network.

Benefits:-

• Downstream frequency range up to 1006 MHz
• Upstream frequency range up to 204 MHz
• Optional connection to Monitoring System
• GaN output stage
• Automatic gain and slope control
• Automatic ingress management by the RSW module

TECHNICAL SPECIFICATIONS___________________________________________________________
Forward path RF parameters                          MB1038D       MB1042D       MB1048D
Amplifier type                                                                        GaN PD hybrid
Gain [dB]                                                              38 +2/-0         42 +2/-0           48 +2/-0
Frequency range [MHz]                                                           47...1006 (1)
Equaliser breakpoint frequency [MHz]                                  862, 1006 (2)
RF attenuator range [dB]                                                          0...22 (3)
RF equaliser range [dB]                                                             0...18 (4)
Flatness [dB]                                                                               ±0.75
Return loss (40MHz -1.5dB/octave) [dB]                                       >18
RF testpoint attenuation [dB]                                                       30±1
CTB [dB]                                                                                      -73 (5)
CSO [dB]                                                                                     -76 (5)
Noise-to-power ratio (NPR) maximum / Dynamic range of NPR > 42 [dB] 60 / 25 (6) (7)
ASG insertion loss (20°C) [dB]                                                       6.5
ASG control range [dB]                                                                  ±4
ASG flatness [dB]                                                                         ±0.5
Noise figure [dB]                                                                              7
Output splitter, directional coupler (Bridge out 2/3) [dB] Plug-in 4, 8, 12, 16, 20

Reverse path RF parameters MB10xxD-xx-20 MB10xxD-xx-25
Gain [dB] 20±1 25±1
Frequency range [MHz] 5...204
Diplex filter [MHz] 65/85, 85/105, 204/258
RF attenuator range [dB] 0...22 (3)
RF equaliser range [dB] 0...14 (3) (8)
Flatness [dB] ±0.75
Input return loss (40MHz -1.5dB/octave) [dB] >18
RF testpoint attenuation [dB] 30±1
Ingress control switch (RSW) states 0dB/-6dB/-50dB, 0dB/-6dB/-50dB/HPF20
Noise-to-power ratio (NPR) maximum / Dynamic range of NPR > 36 [dB] 57 / 27 (9) (10)

General parameters
RF connector 5/8”
Power supply voltage [VAC] 30..65, 35...90AMPLIFIER
Maximum power consumption [W] 38
Maximum current feed-through [A] 10
Hum modulation [dB] 70
Screening factor [dB] 80
Degree of protection IP65
Operational temperature range [°C] -40…+60
Dimensions [mm] 275x200x122
Weight [kg] 4.1