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BACKWARD COMPATIBILITY
The MBV3 electronics package can be made backward compatible with the 10-Amp MB*/* housing by installing the MB-
15A Kit or the MB-15A Kit II. These kits contain 50 mil gold plated platform assemblies. This makes it possible for the
amplifier to carry 15 Amperes continuous through the input or output ports.
FORWARD PATH
The operational gain of the MBV3 is 42 dB, with 16 dB return loss. Output level control is achieved through the use of
an interstage Bode equalizer, which compensates for coaxial cable attenuation changes due to temperature.
Equalization may be controlled manually, with a thermal drive unit (TDU), or with a single pilot closed loop automatic
drive unit, model ADU-* (analog pilot) or QADU-* (QAM pilot). Both the ADU and QADU boards are new to the
STARLINE family of amplifiers. These new plug-ins are unique to the MBV3 design as a vertical plug-in module. ADUs
utilize Surface Acoustic Wave (SAW) filters for determining pilot frequency. This improves amplifier stability over
temperature.
To further ensure system flexibility, installation ease and maintenance, the amplifier is engineered for compatibility with
standard accessories, such as attenuators, equalizers, return amplifiers, automotive fuses and FTEC crowbar circuits.
The MBV3 uses modular diplex filters, which can be changed for a different frequency split as required. The amplifier is
available with S-split filters for a 5-40 MHz return and a 52-1003 MHz forward band. K-splits (5-42 MHz/54-1003 MHz),
J-splits (5-55 MHz/70-1003 MHz), A-splits (5-65 MHz/85-1003 MHz), and N-split (5-85 MHz/104-1003 MHz) are also
available. These same filters can be used for all US-style Motorola RF distribution amplifiers (models BLE, MB, and
BT).
RETURN PATH
High gain return amplifier kits can be ordered which provide 17 dB minimum station gain. Return path equalizers from 0
to 12 dB can be customer selected. Optional features include thermal compensation and ingress control switching.
Thermal compensation comes in the form of a plug-in JXP-TH*C, which stabilizes gain and match over temperature
extremes.
Also available is Ingress Control Switching (ICS) in 3 states. This pin diode attenuator circuit can lower levels by 6 dB or
by 38 dB with a controlled slew rate for minimum bit errors.
(available directly from AM Networks) is required to operate the Ingress Control Switch from a remote location.
Model Availability
To reduce customer costs and to accommodate customer specific needs, the STARLINE MBV3 can be ordered in a
variety of different models. Please refer to the MBV3 ordering information below for options.
Motorola, Inc.
101 Tournament Drive
Horsham, PA 19044
www.motorola.com/broadband
10.09.08
Rev 3
The LIFELINE
2
MOTOROLA, the Stylized M Logo, STARLINE, Mini-Bridger, and LIFELINE are registered in the US Patent & Trademark Office.
®
Mini-Bridger amplifier transponder
All other product or service names are the property of their respective owners.
©
Specifications are subject to change without notice.
Motorola, Inc. 2006. All rights reserved.
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