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General DescriptionWestell’s Twin Variable Gain 700 MHz Upper-C Tower Mounted
Amplifier (TMA) with AISG Re-inject output is an ideal solution for
optimizing LTE cell site performance by improving base station receiver
sensitivity. With the TTMAV-700C, operators will see fewer failed
connection attempts, fewer context drops, expanded coverage area
(critical for VoLTE), and increased uplink data throughput; all in a
compact, highly-reliable, and cost-effective package that supports one
full sector.
To support all types of deployment environments, the gain of the
TTMAV-700C can be set in 1 dB increments from 3 dB to 13 dB, using
AISG 2.0. Additionally the TMA supports control of Smart-Bias-T RET
Antennas via AISG re-injection on the Antenna port eliminating the
need for a separate AISG cable; thus improving reliability and costs.
Model Number
• C90-TTMAV-700C
Frequency Range
• 776-787 MHz (Uplink)
• 728-757 MHz (Downlink)
TTMAV-700C Tower Mounted Amplifier
Twin Variable Gain 700 MHz Upper-C w/AISG Re-inject
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Block Diagram
Features & Benefits
• Advanced, balanced LNA design
•Variable Gain 3-13 db with 1dB steps
•Automatic LNA bypass ensures network availability
• Superior performance, with one of the lowest noise figures in
the industry; < 1.4 dB at 13 dB gain
• High receive isolation; > 90 dB
• High adjacent channel rejection; > 55 dB
• Supports full 11 MHz of the 700 MHz Upper-C frequency for
both receive and transmit
• Supports both AISG 2.0
•AISG re-injection on the Antenna Port for control of Smart-
Bias-T RET Antennas eliminates the need for a separate
cable
• Separate AISG connector for control of non-Smart-Bias-T-
RET Antennas
• Includes AISG 2.0 software download
• Twin configuration supports one full sector in a single
enclosure
• Highly-reliable design with MTBF of over 2.5 million hours
C90-TTMAV-700C
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TTMAV-700C Tower Mounted Amplifier
Tx Specifications (per RF path)Frequency Band 728-757 MHz
Insertion Loss 0.35 dB
Return Loss > 18 dB
Power Handling (CW/PIP) 250 W / 2.5 kW
Passive Intermodulation -110 dBm
Total Group Delay (max.) 70 nSec
Electrical Specifications (per RF path)Power Consumption 180 mA @ 12 VDC
Surge Protection: DC path 8/20 us 10 kA pulse arrester 75V, and 1.5 kW TVS 33 V
Reverse DC Voltage Protection -30 VDC
Lightning Protection Internal shorted stubs
Mechanical SpecificationsSize (H x W x D) (Twin) 10.7” x 8.6” x 3.2”
(Quad) 10.7” x 8.6” x 6.8”
Weight 12 lbs. (27 lbs. Quad)
Color Off-white
Connectors: RF Long Neck 7/16 DIN Female
Mounting Pedestal, Pole, Wall; Mounting bracket provided
Temperature Range -40˚C to + 65˚C
Weather Rating (IEC 60529) IP67
Rx Specifications (per RF path)Frequency 776-787 MHz
Noise Figure @ Gain (dB) NF
13 1.35
12 1.39
11 1.44
10 1.51
9 1.58
8 1.68
7 1.80
6 1.95
5 2.12
4 2.32
3 2.59
Return Loss (active mode) >18 dB
Return Loss (bypass mode) >16 dB
Output 3rd Order Intercept Point
+27 dBm
Bypass Insertion Loss 1.3 dB
Total Group Delay (max.) 330 nSec
Communication and Control SpecificationsProtocol / Alarms AISG 2.0
AISG Connector AISG 8-pin IEC 60130-9 Female
All values are typical. All specifications are subject to change without notice.
Copyright © 2016 by Westell, Inc. All Rights Reserved. Westell, ClearLink, Kentrox, and Optima
Management System are registered trademarks of Westell, Inc. All other names are trademarks of their
respective owners. Information is correct at time of printing and is subject to change without notice.
Westell, Inc. is an Equal Opportunity/Affirmative Action employer.
westell .com
030-200352 rA 06/20/16
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TTMAV-700C Tower Mounted Amplifier
Mechanical Drawings