TW125B Low Current / Low Voltage 1.1 to 1.7 GHz
27 dB gain In-line Amplifier
The TW125B is a low cost, rugged,
waterproof, low noise, low current/low
voltage, 1.1 to 1.7 GHz band, 27dB gain in-
line amplifier, specially designed to amplify
all GNSS frequency signals, from GPS L5 to
GLONASS G1. The TW125B provides for
much longer cable runs from antenna to
receiver, for applications such as mast-
mount, large vehicle and timing systems,
without degradation of system sensitivity.
Its low loading allows for both the antenna
and the TW125B in-line amplifier to be
powered by the GNSS receiver.
The
TW125B passes DC supply to the antenna,
therefore not requiring additional hardware
such as bias-T, power cable and power
supply.
IMPORTANT: Amplifiers are directional and
must be installed in the orientation indicated
on the product label. (Arrow points away from
antenna)
TW125B Dimensions (mm)
Applications
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All GNSS Signals
–
GPS, GLONASS, Galileo, BeiDou & SBAS
•
Commercial, Industrial and Military Telematics Systems
•
Wireless and Telecom Timing and Synchronization Applications
Features
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Low Current / low voltage
Very low noise
Wide input voltage 3 to 16 Volts
Nickel-plated brass, IP67 compliant housing
Powered via antenna coax from receiver
50 Ohm port impedance
Available SMA, TNC, and N-Type jack connectors
RoHS and REACH compliant
Benefits
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Improves signal reception
Enables extended cable runs
Avoid installation of costly low-loss
cable
Fits in line with antenna cable
No external DC power supply required
Easy to install - mounting clamp
included
TW125B Low Current / Low Voltage 1.1 to 1.7 GHz
27dB gain In-line Amplifier
Specifications
Vcc =3.3V, over full bandwidth, T=25 °C
Electrical
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Nominal Gain
Pass Band Ripple
Impedance
Noise Figure
Bandwidth
Input VSWR
Output VSWR
Reverse Isolation
Output P1dB
Group Delay (w/o cable)
Output IP3
Supply Range voltage
Supply Current
27 dB +.1/-.2 dB typ.
+/-0.5 dB
50 Ohms
2 dB typ.
1.1 to 1.7 GHz
1.3:1 typ..
1.3:1 typ.
>35 dB
+9dB min
<1ns
+14dBm
3 to 16 VDC Nominal, 12 VDC recommended operating max
11 mA typ.
Mechanicals & Environmental
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Mechanical Size (body dimensions only)
Connectors
Torque Limitations (in. lbs)
Operating Temp. Range
Enclosure
Environmental
Warranty
2.32”
L x 0.787” Dia.
(59 mm L x 20 mm dia.)
SMA Jack, TNC Jack, or N-Type Jack
N-type
TNC
SMA
6.5
–
8
9 - 11
3.6
–
4.5
-40 to +85 °C
Nickel-plated brass
RoHS, REACH, and IP67 compliant
One year
–
parts and labour
Ordering Information
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TW125B - 27dB gain In-Line Amp with SMA female on both ends
32-0125B-00
TW125B - 27dB gain In-Line Amp with TNC female on both ends
32-0125B-01
TW125B - 27dB gain In-Line Amp with SMA female on antenna side and TNC on output side
32-0125B-02
Rev 2
TW125B - 27dB gain In-Line Amp with TNC female on antenna side / SMA female on output side 32-0125B-03
TW125B - 27dB gain In-Line Amp with N-Type female on both ends
32-0125B-14 (premium applies)
Tel +1 613 591 3131
36 Steacie Drive, Ottawa ON K2K 2A9 Canada
Fax 613 591 3121
sales@tallysman.com
The information provided herein is intended as a guide only and is subject to change without notice. This document is not to be regarded as a guarantee of
performance. Tallysman Wireless Inc. hereby disclaims any or all warranties and liabilities of any kind. © 2015 Tallysman Wireless Inc. All rights reserved.
Rev 1.9
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