The GEV179 Antenna Cable, also known by its Leica equivalent 731353 antenna cable, is a high-accuracy connector cable designed specifically for professional GNSS and GPS survey applications. This premium-grade TNC to LEMO GPS antenna cable provides a reliable signal connection between your GPS antenna and handheld or backpack-style receiver units such as the Leica GS20, Leica SR20, Topcon GRS-1, GMS-2, and Ashtech Promark series (including Promark 100, 120, 200, 220, and Promark 3).
Built for field surveyors who demand strong signal performance, uninterrupted data flow, and long-lasting durability, the GEV179 / 731353 GPS cable is engineered with precision connectors, shielded wiring, and a ruggedized outer jacket to withstand tough outdoor environments.
This is not a generic cable; it’s a high-compatibility, survey-grade antenna lead that mirrors OEM specifications and connects your GPS receiver to your external antenna with precision and stability, ensuring accurate results even in challenging signal or environmental conditions.
Why the GEV179 / Leica 731353 Antenna Cable is Essential for Surveying & GIS Professionals
Survey projects depend on stable satellite communication. Whether you’re using the Leica GS20 | SR20, Topcon GRS-1, or Ashtech Promark GPS devices, the antenna cable acts as the backbone of your signal transmission system.
The TNC to elbow-style LEMO FLA.00 male-to-male connectors ensure that your antenna and receiver communicate with maximum efficiency, reducing data latency and improving GNSS precision. This makes the cable ideal for:
- GNSS/GPS land surveying
- Mapping and GIS data collection
- Construction stakeout
- Utility and infrastructure mapping
- Environmental and forestry surveys
- Agriculture GNSS guidance
- Positioning, land measurement, and geo-referencing tasks
Premium-Grade Design With Multiple GPS Receiver Compatibility
Designed to replace or upgrade OEM cables like Leica GEV179 and Leica 731353, this survey antenna cable works seamlessly with multiple top brands in the industry. Its high compatibility makes it an excellent universal replacement cable for professional surveyors managing mixed-brand equipment.
Compatible With the Following GPS Receivers:
Leica GPS Units
- Leica GS20
- Leica SR20
- Leica GS5
- Leica GS5+
- Leica receivers requiring TNC antenna interface
Topcon GPS Units
- Topcon GRS-1
- Topcon GMS-2
- Topcon units using 14-008079 style cable connector
Ashtech & Magellan Promark Units
- Ashtech ProMark 3
- Ashtech ProMark 100
- Ashtech ProMark 120
- Ashtech ProMark 200 / 220
- Thales Mobile Mapper Series
- Thales ProMark III
- Ashtech CE series
This wide compatibility makes it a smart long-term investment for professionals switching or managing multiple GNSS receivers within a surveying fleet.
Technical Specifications : GEV179 / 731353 GPS Antenna Cable
| Feature | Specification |
| Model Number | GEV179 / Leica 731353 |
| Connector Type | TNC Male to LEMO FLA.00 Elbow Male |
| Cable Length | Standard: 120 cm (3.93 ft) – Custom Length Available |
| Compatibility | Leica GS20, SR20, GS5, GS5+, Topcon GRS-1, GMS-2, Ashtech ProMark series |
| Cable Type | Shielded coaxial cable (survey-grade) |
| Function | Connects external GPS antenna to handheld GIS/GPS receiver |
| Durability Rating | Weather-resistant and field-grade |
| Applications | GPS/GNSS surveying, mapping, GIS, construction, forestry |
Enhanced Signal Quality & Field-Rated Durability
Professional surveyors often work in rugged terrains, forest canopies, construction zones, and remote environments where GNSS signal quality can vary. This GEV179 / 731353 antenna cable is engineered with:
✔ High-density shielding
To protect against electromagnetic interference (EMI) and signal loss.
✔ Rugged polyurethane outer jacket
Resistant to abrasion, moisture, and temperature extremes.
✔ Secure locking connectors
Ensure the cable remains tightly connected during motion and harsh field operations.
✔ Gold-plated connectors for enhanced conductivity
Improves satellite data reception and reduces signal noise.
✔ Flexible but strong wire core
Allows easy maneuverability without compromising durability.
Optimized for GNSS Precision & Stable Satellite Tracking
Survey-grade GNSS receivers rely on consistent antenna communication. Even a slight drop in signal can cause:
- Reduced accuracy
- Increased RMS error
- Data inconsistency
- Time-consuming resurveying
The GEV179 antenna cable ensures:
- Steady data transmission
- Higher precision in coordinate capture
- Fast initialization and satellite lock
- Reliable operation under canopy or partial obstruction
Whether you’re working with RTK, static, or handheld mapping modes, this cable helps maintain optimal GNSS performance.
Custom Length Option for Specialized Projects
The standard 120 cm length is ideal for handheld and backpack-style setups, but if your project requires a longer or shorter cable, customization is available.
Custom Length Options Include:
- 1.0 m
- 1.5 m
- 2 m
- 3 m
- 5 m
- Or any custom length you require
Longer cables are useful for:
- Vehicle-mounted antennas
- Tripod antenna setups
- Pole-mounted receivers
Perfect Replacement for OEM Cables Without the High Price
OEM Leica or Topcon antenna cables can be expensive and difficult to source. This GEV179 / 731353 replacement cable offers the same quality and electrical performance at a competitive price, giving professionals the best value without sacrificing reliability.
You get:
- OEM-equivalent performance
- Premium build quality
- Perfect connector fit
- Long lifespan in field conditions
Easy Plug-and-Play Compatibility
This antenna cable requires no software setup, drivers, or adapters. Simply plug the TNC connector into your GPS antenna and the LEMO elbow connector into your Leica, Topcon, or Ashtech handheld receiver.
The ergonomic elbow design prevents strain on the receiver port, extending the lifespan of your device.
Key Benefits of the GEV179 / Leica 731353 GPS Antenna Cable
✔ High compatibility with popular GPS survey units
Works across Leica, Topcon, Ashtech, Thales, and Magellan receivers.
✔ Strong, stable GNSS/GPS signal transmission
Ideal for professional field survey operations.
✔ Rugged and weather-resistant
Built to endure extreme surveying environments.
✔ OEM-quality performance at a competitive price
✔ Secure connectors minimize accidental disconnections
✔ Perfect for mapping, GIS, RTK, and land measurement tasks
✔ Custom lengths available for specialized setups
Use Cases : Where This Cable Excels
• Land Surveying & Construction
Construction engineers, land measurers, and site supervisors rely on GNSS data accuracy. Stability of the antenna connection ensures consistent results.
• GIS Mapping & Environmental Assessments
GIS professionals using handheld devices benefit from accurate positioning, especially when mapping vegetation, wildlife, or infrastructure.
• Agriculture and Field Operations
Used in farm-level precision mapping, soil sampling, and field monitoring.
• Utility and Infrastructure Mapping
Great for mapping pipelines, electrical lines, telecom networks, and water management systems.
• Geological & Topographical Studies
Supports researchers in remote and rugged field environments.
Frequently Asked Questions
Is the GEV179 antenna cable the same as the Leica 731353 cable?
Yes. The GEV179 is widely known as the Leica 731353 GPS antenna cable, and both refer to the same connector type and function.
Will this cable work with Ashtech Promark 3?
Absolutely. It is fully compatible with Promark 3, as well as Promark 100, 120, 200, and Promark III.
What connector types does this cable use?
The cable features TNC Male on the antenna side and LEMO FLA.00 elbow male on the receiver side.
Can I use this with a Topcon GRS-1 receiver?
Yes. It is fully compatible with Topcon GRS-1 and GMS-2 units.
Can the cable length be customized?
Yes. Standard length is 120 cm, but custom lengths can be made according to your project requirements.
Is this cable suitable for outdoor field use?
Yes. It has a rugged design, reinforced shielding, and weather-resistant outer coating suitable for professional field use.
Does the elbow LEMO connector reduce strain on the receiver?
Yes. The 90° elbow LEMO design protects your device’s port and ensures a secure fit during movement.
Will this cable improve GNSS accuracy?
Indirectly, yes. By providing a stable, interference-free connection between the antenna and receiver, you ensure more consistent GNSS data.
Does it require any special setup?
No setup or configuration needed. It’s plug-and-play.
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