A Tallysman Accutenna®
TW3882 GPS L1/L2 + GLONASS G1/G2/G3 + BeiDou B1/B2 + Galileo E1/E5b
The TW3882 employs Tallysman’s unique Accutenna
technology providing dual band GPS L1/L2, GLONASS
G1/G2/G3 + BeiDou B1/B2 + Galileo E1/E5b coverage and is
especially designed for precision dual frequency positioning.
The TW3882 features a precision tuned, circular dual feed,
stacked patch element. The signals from the two orthogonal
feeds are combined in a hybrid combiner, amplified in a wideband LNA, then band-split for narrow filtering in each band andfurther amplified prior to recombination at the output.
The TW3882 has a pre-filter which increases the antenna’s
immunity to high amplitude signals, such as LTW and othercellular signals. The TW3882 offers excellent axial ratio and atightly grouped phase center variation.
The TW3882 is housed in a through-hole mount, weather-proof
enclosure for permanent installations. L Bracket or Pipe Mount(part numbers 23-0040-0, 23-0065-0 respectively) areavailable for non-rooftop installation. A 100mm ground planeis recommended for non-roof-top installations.

TW3870 Dimensions (mm)This product is also available in an OEM format (TW3887)

Applications
••
•
•
•

Precision GPS position
Dual Frequency RTK receivers
Mission Critical GPS Timing
Military & Security
Network Timing and Synchronization

FeaturesBenefits

•
••
•
•
•
•

••
•
•
•

Very low Noise Preamp, < 2.5dB
Axial ratio L1: ≤1.0 dB typ. 1.5 dB max.
Tight Phase Center Variation
LNA Gain 35 dB typ.
Low current: 24 mA typ.
ESD circuit protection: 15 KV
Invariant performance from: +2.5 to 16VDC

Ideal for L1/L2 RTK surveying systems
Great multipath rejection
Increased system accuracy
Great signal to noise ratio
IP67, REACH, and RoHS compliant

TW3882 GPS L1/L2 + GLONASS G1/G2/G3 + BeiDou B1/B2 + Galileo E1/E5b
Specifications (Measured a Vcc = 3V, and Temperature=25°C)
Antenna

Patch Architecture
L2 Gain (100mm ground plane), 1207.14-1246MHz
L1 Gain (100mm ground plane), 1575.42MH-1606MHz
Axial Ratio, L1/G1/E1/B1, L2/G2/B2/E5b
1dB Bandwidth,Polarization

ElectricalBandwidth
Overall LNA Gain
Gain Variation with Temperature.
LNA Noise Figure
VSWR (at LNA output)
Supply Voltage Range
EMI Immunity
Supply Current
ESD Circuit protection
Out-of-Band Rejection
L1<1450 MHz
<1520 MHz>1650 MHz

Circular, Dual Feed, Dual Stacked Patch
3 dBic Min at Zenith on 100mm Ground Plane
4.5 dBic Min at Zenith on 100mm Ground Plane≤1.0 dB typ. 1.5 dB max., ≤1.5 dB typ. 2.0 dB max.
L2: 1195MHz-1250MHz
L1: 1557MHz–1606MHz
RHCP,

L2: 1189MHz-1261MHz (Filter bandwidth) L1: 1557 MHz-1606MHz (Filter bandwidth)
35dB typ, 32 dB min, each of L1 and L2 Bands,
3dB max over operational temperature range
2.5dB typ at 25°C
<1.5:1 typ. <1.8:1 max.
+2.5 to 16VDC nominal, up to 50mV p-p ripple
50V/Meter, excepting L1+/-100MHz and L2 +/- 100MHz
24 mA typ. at 25°C, 25mA max at 75°C.
15 KV air discharge.
L2>40 dB
<1050 MHz>50 dB>30 dB<1100 MHz>40 dB>35 dB>1350 MHz>50 dB

Mechanicals & Environmental
Mechanical Size, Ground Plane
Operating Temperature Range
Enclosure
WeightAttachment Method
Environmental
ShockVibration
Salt fog / spray

66mm x 21mm (see drawing on other page), 100mm ground plane recommended-40°C to +85°C
Radome: EXL9330, Base: Zamak White Metal
185 g
Permanent ¾” (19mm) through hole mount
IP67, RoHS, RED, and REACH compliant
Vertical axis: 50 G, other axes: 30 G
3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G
MIL-STD-810F Section 509.4

Ordering Information
TW3882 – GPS L1/L2 + GLONASS G1/G2 + BeiDou B1/B2 + Galileo E133-3882-xx-yy-zzzz
Where xx = connector type, yy = shape and colour of radome and zzzz = cable length in mm (where applicable)
Please refer to the Ordering Guide ( http://www.tallysman.com/wp-content/uploads/Current-Ordering-Guide.pdf) forthe current and complete list of available radomes and connectors.

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. ©
2019 Tallysman Wireless Inc. All rights reserved.
Rev 1.6