Mobile Base Stations
Deploy a VNet8 + AT-35101H as a project base station. Pack it up. Move to the next site. Repeat.
AT-35101H
★ Geodetic GNSS Antenna
Hi-Target · AT-35101H
AT-35101H Geodetic GNSS Antenna.
Full multi-constellation + L-Band coverage in a 460-gram geodetic package. ≤±1.8 mm phase center stability, ≥5.5 dBi gain, IP67 — the portable alternative to choke ring antennas for mobile base stations and marine surveys.
Not every reference station needs a 5 kg choke ring. The AT-35101H delivers the same full-band GNSS + L-Band coverage as the AT-45101CP in a form factor that weighs 10× less, fits in a backpack, and mounts on any standard tripod, vessel bracket, or temporary monument. Phase center stability of ≤±1.8 mm is more than sufficient for construction base stations, road projects, hydrographic surveys, and semi-permanent monitoring arrays — at a fraction of the choke ring's weight and cost.
460g Lightweight
≤±1.8mm Phase
Full Band + L-Band
≥5.5dBi Gain
IP67
Portable Precision
Choke ring performance. Backpack portability.
The AT-35101H sits in the sweet spot between the AT-45101CP choke ring (5 kg, ≤±1 mm, IGS/NGS) and the AH-3232 compact module (18 g, dual-band only). At 460 grams and 160×71×40 mm, it mounts on any 5/8-inch thread, fits in a standard instrument case, and provides the same full GNSS + L-Band signal coverage that permanent CORS stations require.
Phase center stability of ≤±1.8 mm is well within the error budget of most construction, infrastructure, and hydrographic projects. For teams that move base stations between sites — or deploy temporary reference points on large projects — the AT-35101H delivers geodetic-grade signal quality without geodetic-grade weight.
10×
Lighter than choke ring
160mm
Compact length
≤2dB
LNA noise figure
TNC
Standard connector
Key Features
Six reasons to choose geodetic over choke ring.
FEATURE 01
Full GNSS + L-Band — nothing missing.
Tracks GPS L1/L2/L5, GLONASS G1/G2/G3, BDS B1/B2/B3, Galileo E1/E5a/E5b/E6, QZSS, NavIC, SBAS, and L-Band PPP services. The same constellation and frequency coverage as the AT-45101CP choke ring — the difference is form factor and phase center specification, not signal capability. Every signal your VNet8 receiver can process, this antenna receives.
Full L-Band
Same signal coverage as choke ring — in 460g
FEATURE 02
≤±1.8mm Phase Center
Sub-2mm phase center offset across all tracked frequencies. Sufficient for construction base stations, road surveys, marine positioning, and most monitoring applications.
FEATURE 03
43dB High-Performance LNA
43 dB ± 3 dB gain, ≤2 dB noise figure, VSWR ≤2. Low power consumption (≤45 mA at 3-16 VDC). Clean signal amplification for long cable runs.
FEATURE 04
460g — 10× Lighter Than Choke Ring
Fits in a backpack. Mounts on any tripod. Ships as carry-on. Deploy temporary base stations in minutes, not hours.
FEATURE 05
IP67 · −45°C to +85°C
Dust-proof, temporary immersion proof. Operating range covers arctic to desert. 95% humidity tolerance. Built for permanent outdoor mounting.
FEATURE 06
The cost-effective CORS antenna.
For multi-station deployments where budget matters — construction site bases, road corridor references, agricultural guidance stations — the AT-35101H provides the same signal quality as the choke ring at a fraction of the unit cost. Deploy four AT-35101H stations for less than the cost of two AT-45101CP installations. When millimeter-level phase center isn't the requirement but full-band GNSS coverage is, this is the antenna that makes network density affordable.
4× density
Deploy more stations at lower cost per node
Technical Specifications
Every detail. Documented.
| Signal Tracking | |
| GPS | L1, L2, L5 |
| GLONASS | G1, G2, G3 |
| BDS | B1, B2, B3 |
| Galileo | E1, E5a, E5b, E6 |
| Other | QZSS, NavIC, SBAS, L-Band |
| Antenna Performance | |
| Polarization | RHCP |
| Axis Ratio | ≤ 3 dB |
| Impedance | 50 Ω |
| Elevation Coverage | 360° |
| Maximum Gain | ≥ 5.5 dBi |
| Phase Center Offset | ≤ ±1.8 mm |
| LNA Performance | |
| LNA Gain | 43 dB ± 3 dB |
| Noise Figure | ≤ 2 dB |
| VSWR | ≤ 2 |
| Operating Frequency | |
| Lower Band | 1176 – 1278 MHz |
| Upper Band | 1521 – 1621 MHz |
| Power | |
| Working Voltage | 3 – 16 V DC |
| Power Consumption | ≤ 45 mA |
| Physical & Environmental | |
| Dimensions | 160 × 71.3 × 39.6 mm |
| Weight | 460 g |
| Connector | TNC |
| IP Rating | IP67 |
| Operating Temperature | −45 °C to +85 °C |
| Storage Temperature | −55 °C to +85 °C |
| Humidity | 95% |
Applications
Built for base stations that move.
Marine & Hydrographic
Vessel-mounted antenna for bathymetric surveys, port construction positioning, and offshore reference.
Road & Rail Construction
Corridor-based projects needing temporary reference stations every few kilometers along the alignment.
Semi-Permanent Monitoring
Multi-year construction monitoring, slope stability, and settlement arrays where choke ring cost isn't justified.
Dense Network Nodes
Lower per-unit cost enables higher station density — deploy 4 geodetic nodes for the cost of 2 choke ring installations.
Agriculture RTK Base
Permanent or seasonal farm base stations providing RTK corrections to precision agriculture equipment.
Frequently Asked
Common questions about the AT-35101H.
What is the AT-35101H Geodetic GNSS Antenna?
+
460g lightweight geodetic antenna with ≤±1.8mm phase center, ≥5.5dBi gain, 43dB LNA, full multi-constellation + L-Band tracking, IP67. The portable alternative to 5kg choke ring antennas for mobile base stations, marine surveys, and semi-permanent installations.
How does it compare to the AT-45101CP choke ring?
+
AT-45101CP: 5kg, ≤±1mm, ≥7dBi, IGS/NGS certified — for permanent government CORS. AT-35101H: 460g, ≤±1.8mm, ≥5.5dBi — for mobile base stations, marine, road construction. Same frequency coverage. 10× lighter. Choose based on whether sub-millimeter phase center or portability is the priority.
Which receiver should I pair with the AT-35101H?
+
The Hi-Target VNet8 CORS receiver (1408 channels, 64GB, unlimited NTRIP streams). TNC connector interfaces directly. Sicher 3D offers VNet8 + AT-35101H bundles. For rover-as-base setups, any Hi-Target iRTK5 or V600L can also be used with the AT-35101H via TNC adapter.
Can the AT-35101H be used for permanent CORS?
+
Yes, for semi-permanent or commercial CORS. IP67 + -45°C to +85°C operating range make it suitable for outdoor mounting. For government CORS requiring IGS/NGS calibration files and sub-millimeter phase center, the AT-45101CP choke ring is recommended.
What is the price of the AT-35101H in Dubai?
+
Contact Sicher 3D at sales@sicher-3d.com or +971 50 108 0764 for authorized dealer pricing. Available individually or bundled with VNet8 receiver and installation services.
Geodetic precision. Backpack portability.
Talk to our engineers about AT-35101H pricing, VNet8 bundles, and deployment options across UAE and GCC.