RTK base station agriculture planning should begin with the complete guidance workflow, not just a hardware choice. The correction source, delivery link, radio environment, GNSS receiver, control terminal, and steering system all affect whether a proposed setup is suitable for an operation.
The FJD AT2 MAX documentation identifies several machine-side components and signal interfaces. It does not identify a specific RTK base station, correction provider, coverage range, correction protocol, or installation procedure. Those points require confirmation before equipment is selected or deployed.
What the AT2 MAX Documentation Establishes
The FJD AT2 MAX is an auto steer system for agricultural machinery. Its documented basic components include a control terminal, GNSS receiver, radio antenna, electric steering wheel, and angle sensor.
The brochure says that the control terminal receives radio, satellite, and 4G signals. This statement describes signal reception capabilities; it does not, by itself, prove that each signal type is an RTK correction-delivery method or establish compatibility with a particular base station or network service.
The GNSS receiver lists frequency bands for GPS, GLONASS, BDS, and Galileo, along with SBAS. The system is described as offering RTK accuracy, but the brochure does not provide a numerical accuracy value or define the conditions required to achieve it.
These distinctions are important. An RTK-capable system still requires decisions about the correction source, protocol, radio configuration, cellular availability, local signal environment, and commissioning process.
RTK Base Station Agriculture Decision Framework
A farm RTK correction plan should compare correction-source options against field conditions and operating requirements. The available evidence does not establish which option is compatible with the AT2 MAX, so the following is an evaluation framework rather than a product recommendation.
1. Compare the correction-source types
Ask whether the operation is considering:
- An owned or locally managed base station.
- A dealer- or provider-managed correction service.
- A network correction service delivered through cellular connectivity.
- A radio-delivered correction link from a base station or other approved source.
Ownership and service models affect responsibilities differently. An owned base station may require the farm to plan equipment placement, power, radio configuration, maintenance, and field coverage validation. A network service may shift some infrastructure responsibilities to the provider but can introduce subscription, cellular-coverage, and service-area questions. The brochure does not specify which model should be used.
2. Confirm the technical link
For every proposed source, request written confirmation of:
- Provider and model, where applicable.
- Correction protocol and data-format requirements.
- Receiver and terminal compatibility.
- Radio band, antenna configuration, and permitted operating conditions.
- Cellular requirements if 4G delivery is proposed.
- Required accessories, subscriptions, credentials, or configuration files.
Do not treat the terminal's documented ability to receive radio, satellite, and 4G signals as confirmation that a proposed correction link will work.
3. Survey the site and fields
A useful site survey should record the proposed base-station position, terrain, buildings, tree lines, other obstructions, field boundaries, and the routes where guidance will be used. Review each field rather than assuming that one location will provide identical results everywhere.
For radio-based deployment, ask the dealer or provider to explain how coverage will be validated at the field edge and in obstructed areas. For cellular delivery, validate coverage in every relevant field and during the operating periods that matter to the farm. The available product evidence does not provide a radio range, obstruction tolerance, or network-availability guarantee.
4. Define commissioning and failover
The deployment plan should state who installs and configures the equipment, who verifies the correction link, and what test results will be supplied. It should also explain what operators should do if the preferred correction source is unavailable.
A failover plan might address an alternate approved correction source, a temporary operating procedure, escalation contacts, and how loss or recovery of corrections will be identified. The brochure does not define a failover function, so this must be agreed with the responsible dealer or service provider.
Documented Signal Hardware
The supplied product document lists these signal-related details for the FJD AT2 MAX:
| Component | Documented capability | Planning relevance |
|---|---|---|
| Control terminal | Receives radio, satellite, and 4G signals | Describes reception categories, but does not confirm that each is an RTK correction method |
| GNSS receiver | Lists GPS, GLONASS, BDS, Galileo, and SBAS bands | Identifies the satellite signals listed for the receiver; proposed correction compatibility still requires confirmation |
| Radio antenna | Frequency range of 410–470 MHz or 902–928 MHz | Requires confirmation of the appropriate antenna, radio configuration, and local regulatory requirements |
| Control terminal Wi-Fi | 2.4 GHz frequency band, 2402–2480 MHz | Documents terminal connectivity and does not establish an RTK correction link |
The radio antenna is documented with a voltage standing wave ratio of no more than 2.0, 50-ohm impedance, vertical polarization, and an operating temperature of -20°C to 60°C. These are antenna specifications, not evidence of base-station range, coverage, or compatibility.
Radio licensing and regional frequency rules should be confirmed before deployment. The brochure lists two antenna frequency ranges but does not state which range is permitted or appropriate for a particular location.
Field-by-Field Validation Checklist
Before approving a base-station deployment or correction service, use this concise checklist:
- Correction source: Record the provider, service, or base-station model under consideration.
- Protocol: Obtain written confirmation of the correction protocol and required data format.
- Receiver and terminal: Confirm compatibility with the installed GNSS receiver, control terminal, and selected delivery link.
- Radio regulation: Confirm the permitted radio band, licensing obligations, antenna arrangement, and local configuration.
- Cellular coverage: Validate 4G coverage in every field if a cellular correction path is proposed; do not infer coverage from product documentation.
- Obstructions: Complete a field-by-field survey covering terrain, buildings, trees, and other possible signal obstructions.
- Commissioning scope: Define installation, configuration, calibration, testing, documentation, and operator handover responsibilities.
- Failover: Document the response to correction loss, including the alternate source or operating procedure and support contact.
This checklist helps separate documented machine capabilities from assumptions about the correction infrastructure.
Keep Guidance, Steering, and Implement Plans Aligned
The FJD AT2 MAX provides guidance lines and tramlines for straight, curved, pivot, or mixed routes. It also supports translating guidance lines and vehicle positions. Documented field functions include headlands, basic and smart U-turns, and diagonal harrowing for polygonal fields. Smart U-turn is stated to reduce operating distance by up to 30% compared with manual turning; that claim concerns the turning function, not base-station performance.
The brochure states that FMS can monitor fields, vehicles, implements, tasks, and operational records, with real-time data transfer for visualizing multi-task workflows. It does not state that FMS replaces an RTK base station or correction service.
The terminal has a 12.1-inch capacitive touch screen, 1280 × 800 resolution, a 500-nit backlight, and split-screen views including a four-screen layout. It can display an ISOBUS Universal Terminal in full screen and show up to 24 sections. The brochure lists UT, TC-BAS, TC-SC, TC-GEO, and AUX-N support and describes compatibility with ISOBUS-friendly implements. However, that broad statement is not a practical assurance for every installation: verify the actual implement, functions, accessories, and required configuration before purchase.
These features are secondary to correction-source selection. They matter because the base-station deployment should be reviewed alongside the machines, implements, field routes, and operator workflow rather than in isolation.
Questions for the Dealer or Correction Provider
Request clear answers to the following questions:
- Which correction source and provider or model are being proposed, and why does it fit the field plan?
- What correction protocol and data format are required?
- Has compatibility with the installed GNSS receiver, terminal, antenna, and selected signal path been confirmed in writing?
- Which radio band is proposed, and who will confirm licensing and regional regulatory requirements?
- If 4G delivery is proposed, how will cellular coverage be tested field by field?
- What site-survey inputs are needed, and how will obstructions and edge-of-coverage areas be assessed?
- What exactly is included in installation, configuration, calibration, commissioning, and operator training?
- What test will demonstrate that the correction link is working as planned?
- Who owns the base-station equipment, subscriptions, maintenance, and service escalation responsibilities?
- What is the failover plan if the primary correction source or delivery link is unavailable?
Ask for the answers as project deliverables, not only verbal guidance. A useful proposal should include written compatibility confirmation, proposed correction-source specifications, radio-band and regulatory confirmation, cellular-validation results where relevant, installation scope, commissioning-test criteria, and named support responsibilities.
Information to Confirm Before Deployment
The brochure is a useful starting point, but it cannot approve a complete correction configuration on its own. Before finalizing a farm RTK correction plan, confirm:
- The specific correction source, provider, or base-station model.
- The correction protocol and compatibility with the installed equipment.
- The applicable radio band, antenna configuration, and regulatory requirements.
- Cellular coverage for every field if a 4G path is proposed.
- Field-by-field obstruction and coverage-survey results.
- Required subscriptions, network access, accessories, and configuration.
- Installation, calibration, commissioning, and verification procedures.
- Ownership, maintenance, support, and escalation responsibilities.
- The failover procedure for correction or network loss.
- The expected operating procedure for each machine and field.
The FJD AT2 MAX documentation supports discussion of an auto steer platform with radio, satellite, and 4G signal reception, a multi-constellation GNSS receiver, and listed radio antenna ranges. It does not provide enough evidence to approve a particular base-station or correction-service configuration.
For the next step, provide the dealer or FJDynamics representative with field locations, machinery and implements, preferred correction-source types, proposed radio requirements, cellular information, and site-survey findings. Request the compatibility statement, correction-source specifications, regulatory confirmation, installation scope, commissioning test, and support plan in writing before deployment.
