DJI Agras T50 OEM RTK Antenna Module (BC.AG.SS000694)

RTK Antenna Module | Real-Time Kinematic Positioning Antenna | Centimeter-Level GNSS Precision Module | Navigation System Component | Field-Ready OEM Replacement Component | DJI Material Number BC.AG.SS000694

DJI Material Number BC.AG.SS000694 — this is the official DJI part number for this exact component. Match it to your parts diagram or the label on the original part to confirm fitment; factory labels may carry a revision suffix, which is the same part.

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🇺🇸 U.S.A. FIRST

Ares Acres LLC is a U.S.-based authorized DJI Agras reseller supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.

FREE & FAST Shipping is included for all U.S. customers.

We understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.

Ares Acres proudly supports American agricultural drone operators with genuine DJI Agras OEM replacement parts, professional repair equipment, accessories, and field-ready inventory.

Precision agriculture is only as precise as the aircraft knows where it is. The RTK antenna module is what elevates the T50 from GPS-good to centimeter-accurate — the component that receives the real-time kinematic corrections that turn a spray mission into a survey-grade operation.

When RTK reception degrades, precision is the first casualty. Positioning drifts from centimeters back toward meters, swath lines wander, overlap and skip creep into coverage, and the mapping accuracy customers pay a premium for quietly disappears — all while the aircraft appears to fly normally.

That is why Ares Acres keeps hard-to-find OEM navigation modules in stock and shipped fast to the U.S.A., helping operators keep their positioning survey-grade, minimize downtime, and keep their aircraft spraying when every acre counts.

For professional farmers, aerial applicators, and commercial drone operators, a healthy RTK antenna is the difference between spraying a field and spraying it precisely.

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✅ DJI Agras T50 / T25 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking

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📦 Package Includes

• 1 × DJI Agras RTK Antenna Module
• Premium OEM navigation component
• Direct-fit replacement module
• Protective packaging

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🔧 Component Overview

The DJI Agras T50 Original RTK Antenna Module is the real-time kinematic positioning antenna for the DJI Agras T50 and T25 agricultural drones.

The module enables RTK positioning — centimeter-level accuracy in navigation, spraying, and field mapping — giving the flight controller the survey-grade position data that precision flight paths are built on. Built durable and weather-resistant for agricultural duty, it restores factory positioning accuracy the moment a degraded antenna comes off.

Commercial agricultural drones operate in demanding environments every day, including:

• Crop spraying
• Liquid fertilizer application
• Field mapping and surveying
• Variable-rate application missions
• Orchard operations
• Vineyard spraying
• Precision agriculture missions
• Daily commercial deployments
• Fleet operations
• High-acreage contract work

Throughout these operations, RTK antenna modules are routinely exposed to:

• Chemical mist and spray drift
• Continuous airframe vibration
• UV exposure across long seasons
• Moisture and washdown exposure
• Dust and airborne field debris
• Heat and cold cycling in the field
• Impact risk from branches and obstacles
• Connector stress from service cycles
• Transport handling
• Long commercial operating hours

Over time, this duty degrades antenna elements, corrodes connections, and weathers housings — and a degraded RTK antenna means positioning accuracy quietly slipping away from centimeter-level.

The RTK Antenna Module helps maintain:

• Centimeter-level positioning accuracy
• Precise, repeatable flight paths
• Clean swath lines with correct overlap
• Survey-grade field mapping output
• Reliable RTK signal reception
• Two-model fleet coverage
• Increased fleet readiness
• Maximum aircraft uptime
• Reliable commercial operation

For operators selling precision by the acre, positioning integrity is non-negotiable.

Before you order an antenna, prove the fault is on the aircraft and not on the corrections. An RTK fix needs three things working together: satellites in view, a correction stream from a base station or a network service, and an antenna that can hear both cleanly. Check the correction source first. If a second aircraft or a rover holds a solid fix on the same base or the same network mount point, at the same place and time, the corrections are fine and the problem is on the airframe in front of you.

Then separate the antenna from everything behind it. Park the aircraft in genuinely open sky, well away from sheds, silos, tree lines, and parked trucks, power up, and watch how long it takes to reach a fix and whether that fix holds while the aircraft sits still. An airframe that used to lock quickly in that same spot and now crawls, hunts, or falls back to a lower-quality solution has a hardware problem. An airframe that only struggles near obstacles is fighting multipath, and a new antenna will not fix geography.

Work the cable before you condemn the element. With the aircraft powered and sitting on a fix, gently flex the coax near the connector and along its run while someone watches fix quality on the display. A fix that stutters or drops when the cable is moved is a cable or connector fault, not a dead antenna. Then unmate the connector and look into it: a bent or recessed center pin, green or white powder on the shell, or any sign of moisture explains far more RTK complaints than a failed antenna element does.

Read the housing like a service record. Chalky, crazed, or hazed plastic means the module has taken a full run of UV seasons. A hairline crack, a lifted seam, or a soft spot around the cable entry is a water path, and water inside a GNSS antenna detunes it. That produces a signature most operators recognize once it is pointed out: reception that is poor first thing in a heavy dew or the morning after a washdown and improves as the day dries out. That module is on borrowed time even if it still fixes.

If the airframe carries more than one RTK antenna for heading, treat them as a matched pair when you diagnose. A position that is stable but a heading that jitters, drifts, or throws an orientation warning on the ground points at one antenna of the pair or its cable rather than at the correction source, because heading is derived from the two antennas seeing the same satellites at the same instant. Note which mounting position the suspect module came from before it leaves the aircraft.

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⚙️ Functional Purpose

The RTK Antenna Module is designed to provide real-time kinematic positioning reception for the DJI Agras T50 and T25.

The component helps:

• Enable centimeter-level RTK positioning
• Deliver survey-grade position data to the flight controller
• Support precise, repeatable flight paths
• Keep swath lines straight and overlap correct
• Support accurate field mapping and surveying
• Maintain positioning stability in demanding conditions
• Resist weather, chemical, and UV exposure
• Replace degraded, damaged, or failing antennas
• Restore factory navigation accuracy
• Install quickly with a direct fit
• Maintain correct fitment across both models
• Support preventative maintenance
• Keep navigation hardware field-ready

Every flight line the aircraft flies is only as straight as the position data behind it — and the precision is only as good as the antenna receiving it.

A sound RTK antenna keeps every mission survey-grade through season after season of commercial work.

A worn or damaged RTK antenna may contribute to:

• Degraded positioning accuracy
• RTK signal loss or intermittent fix
• Drifting or wandering swath lines
• Overlap and skip in coverage
• Reduced mapping and survey accuracy
• Positioning fault warnings
• Interrupted spraying missions
• Unexpected downtime
• Reduced fleet reliability

Replacing a degraded antenna restores the positioning precision the aircraft was engineered around.

Removal starts with power. Shut the aircraft down completely and disconnect the flight battery before you touch antenna wiring. RF connectors are not meant to be mated or unmated live, and on an aircraft this size the antenna run passes close enough to other harnesses that a slip with a tool while everything is energized is a much larger repair than the one you started.

Photograph the installation before anything moves. Cable routing on an Agras airframe is not decorative: the run is laid out to keep the coax away from carbon edges, out of the fold path of the arms, and clear of the spray plumbing, and it is held by clips and ties at specific points that set where the strain goes. Rebuilding it from memory is how a new antenna develops an intermittent three weeks later, in the middle of a job, for reasons nobody can find.

Unmate the connector by the nut, never by the cable. Hold the connector body steady and turn the coupling nut only. Twisting a coax at its connector is what shears the center conductor inside the crimp, and it does it invisibly, so the cable looks perfect and behaves badly. Do not pull a stubborn connector by the cable jacket either. Free the retaining hardware and let the connector come off square.

Handle the coax as the fragile part it is. Do not kink it, do not pull it tight around a corner, and do not coil it small to tidy the bay. A crushed or sharply bent coax permanently deforms the dielectric inside, which changes its impedance and costs you signal that no amount of open sky will get back. Keep the same generous sweep the factory routing used, and re-use the original clip and tie positions rather than inventing new ones.

On refit, keep the mating faces clean and dry, and do not grease RF contacts. Start threaded connectors by hand and take them to finger tight. If your DJI service documentation specifies a torque figure for the connector or for the mount fasteners, use that figure. No torque value is published in this listing, so do not guess one and do not lean on it with pliers. The antenna must also sit flat and square in its mount, the way the original did, because tilting or shimming it changes what sky it sees.

Prove the repair before you bill for a job on it. Power up in open sky, confirm the aircraft acquires a fix in a time that looks normal for that location, let it sit and confirm the fix holds rather than cycling, and check that heading is steady. Then fly a short check pass over a line you have flown before and compare the track. A new antenna that fixes on the ground and wanders in the air is telling you the cable or its routing is still wrong.

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⚠️ Common Replacement Indicators

Replacement may be recommended when operators observe:

• Degraded or inconsistent RTK fix quality
• Intermittent RTK signal loss
• Longer times to achieve RTK fix
• Drifting or inaccurate positioning
• Swath lines that wander between passes
• Cracked or weathered antenna housing
• Corroded or damaged connectors
• Impact damage from field obstacles
• Moisture intrusion in the module
• Positioning system fault messages
• High-hour navigation hardware
• Maintenance inspection findings
• Fleet refurbishment projects
• Preventative pre-season replacement

Common causes of RTK antenna wear include UV degradation embrittling housings season after season, chemical mist attacking seals and connections, vibration fatiguing internal elements and solder joints, moisture wicking into connectors during washdowns, and impact damage from the obstacles low-flying agricultural aircraft work around — antenna degradation shows up as accuracy loss before it shows up as failure, so experienced crews watch fix quality and replace at the first persistent degradation.

For commercial operators, a fresh RTK antenna is almost always cheaper than the re-flown acres and mapping rework a drifting position causes.

Time to first fix has quietly stretched out in a location where the aircraft used to lock quickly. Compare the same spot on the same corrections rather than comparing fields, because a tree line or a metal building will do this to a perfectly good antenna. When open sky is slow, the antenna or its cable is the place to look.

The fix is solid on the ground and degrades once the aircraft is in the air. That pattern points at something vibration sensitive: a connector that is not fully mated, a cable that goes tight when the arms are deployed, or a fatigued joint inside the module. It is not a correction-source problem, because the corrections do not know the aircraft has taken off.

Reception is worst after rain or a washdown and improves after the aircraft has sat in the sun. That is water ingress, either into the antenna housing through a crack or a tired seam, or into the connector shell. Both get worse from here, and both will strand you on the morning of a job rather than in the shop.

Fix quality drops at a particular aircraft heading and returns when the aircraft turns. Something is shadowing the antenna or the cable is being pulled at that arm position. Check the routing at the fold path and the clips before you assume the element is bad.

Position holds but heading jitters or throws an orientation warning on the ground. On an airframe that derives heading from more than one antenna, that isolates the fault to one antenna of the pair or its cable rather than to the correction stream, which would degrade position as well.

Every aircraft on the same base station or network mount point loses fix at the same time. That is the correction source, the radio link, or an expired network subscription, and no antenna will fix it. Confirm this before ordering hardware, because it is the single most common reason an operator buys an antenna they did not need.

The housing is chalky, crazed, or cracked, or the cable jacket has gone stiff and shows fine splits near the entry. The module may still be fixing today. Season-long UV and chemical exposure end in water ingress, and the failure will present itself in the field rather than on the bench.

The aircraft took a branch, a wire, or a hard landing on the side the antenna sits. Positioning that still looks acceptable does not mean the module is undamaged; the mount, the fasteners, and the cable strain relief all take that hit too, and a cracked housing that has not leaked yet is simply one dew away from leaking.

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📐 Specifications

DJI Material Number (SKU): BC.AG.SS000694

Component Type: RTK antenna module / GNSS navigation component

Compatibility:

• DJI Agras T50
• DJI Agras T25

Package Quantity: 1 Module

Positioning: Real-time kinematic (RTK) — centimeter-level accuracy

Installation Area: Aircraft navigation system

Function: RTK correction reception for precision positioning, spraying, and mapping

Design: Direct-fit OEM navigation module

Construction: Durable, weather-resistant build for agricultural duty

Mounting Type: Direct-fit OEM replacement component

Application: Agricultural drone navigation system maintenance

Ordering Reference: Match DJI material number BC.AG.SS000694 against the label on the removed module or against the parts diagram for your airframe. Revision suffixes on factory labels denote a production revision, not a different component.

Mounting Note: The module must sit flat and square in its original mount with the original cable routing. Do not shim, tilt, or re-route the coax, and do not create new tie points.

Connector Handling: Mate and unmate by the coupling nut only, with the aircraft powered down. Keep contact faces clean and dry and do not apply grease to RF contacts.

Torque: No torque figure for the connector or mount fasteners is published in this listing. Use the value in your DJI service documentation if one is specified, and do not substitute a guess.

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🧰 Fitment Verification Before You Order

This listing is DJI material number BC.AG.SS000694. That number, not the description, is what makes a part match. Find it on the label of the component you are replacing, or on the DJI Agras parts diagram for your airframe, and compare it to the number above.

Revision suffixes are still the same part. DJI labels sometimes carry a trailing revision such as .01, .02, or .F. Those denote a production revision, not a different component. Match the base number and disregard the suffix.

Visually similar is not the same. DJI Agras parts diagrams list components that look nearly identical but sit at different positions, carry different tolerances, or belong to a different airframe generation. Ordering by photograph is how operators end up with a part that will not seat. Order by number.

Verified fitment for this listing: DJI Agras T50. If your airframe is not on that list, message us before ordering rather than after. We would rather answer a question than process a return, and so would you.

Not sure? Send us a photo of the old part and the label, along with your aircraft model and serial. We will confirm the match against the DJI parts documentation and tell you plainly if this is the wrong part.

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🛠️ Installation & Handling Notes

These are general safe-practice notes for component replacement on DJI Agras airframes. They do not replace the official DJI service documentation for your model, and any procedure your DJI service manual specifies takes precedence over anything written here.

Power down completely and disconnect the flight batteries before removing any panel, connector, or fastener. Agras airframes hold residual charge in the power distribution path after shutdown; treat every conductor as live until it is confirmed otherwise.

Photograph the assembly before you disturb it. Cable routing, connector orientation, and fastener lengths on Agras airframes are not interchangeable, and the RTK Antenna Module is easier to fit correctly when you can see how the original sat.

Observe ESD precautions. Ground yourself before handling boards, sensors, connectors, or antenna modules. Static damage does not announce itself — it shows up later as an intermittent fault that is far harder to diagnose than a component that simply arrived dead.

Seat every connector fully and restore the original strain relief. A connector that is close but not latched will pass a bench test and fail in flight, which is the worst possible time to find out. Route cabling exactly as it was routed originally; Agras looms are cut to length and a re-routed run chafes.

Test before you spray. Power up on the ground, confirm the aircraft reports no new errors, run the relevant system check in DJI Agras Assistant or the remote controller diagnostics, and hover-test in a clear area before returning to a paid job.

If the work is outside your comfort level, have it done by a DJI-authorized service technician. The part cost is small next to the airframe.

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🚜 Necessary For

This component is ideal for:

• DJI Agras T50 operators
• DJI Agras T25 operators
• Farmers operating spray drones
• Commercial spraying contractors
• Agricultural aviation companies
• Fleet maintenance managers
• Agricultural drone technicians
• DJI Agras service providers
• Drone repair facilities
• Commercial drone fleets
• Precision agriculture businesses
• Mapping and survey operations
• Preventative maintenance programs
• Daily commercial operations
• Emergency repair inventory
• Professional agricultural drone operators

Especially valuable during:

• Spring spraying season
• Summer application windows
• Field mapping and survey projects
• Navigation system service work
• Multi-aircraft fleet maintenance
• Seasonal rebuilds
• Emergency repairs
• High-hour commercial operations

When the whole business is precision, keeping the positioning hardware sharp keeps operations moving.

Isolating a positioning complaint in a mixed fleet, where a known-good spare antenna is the fastest way to prove whether the fault is on the aircraft or on the shared correction source.

Returning an airframe to survey-grade after an impact on the antenna side, where the housing, the mount, and the cable strain relief all took the same hit even if the fix still looks acceptable.

Closing out a season on an aircraft whose antenna housing has gone chalky or crazed, before the first heavy dew of the next season turns a cosmetic problem into a no-fix morning.

Restoring stable heading on an airframe that derives orientation from more than one antenna, where a single degraded module produces yaw jitter that no calibration will settle.

Keeping contract work billable, where the coverage maps and as-applied records handed to the customer are only as defensible as the position data behind them.

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💡 Why This Part Matters

RTK is the technology customers are actually paying for when they hire precision application — the difference between "we sprayed your field" and "we sprayed your field with centimeter-accurate coverage you can verify." Every claim on the invoice traces back to one antenna receiving corrections cleanly.

And RTK degradation is deceptive: the aircraft keeps flying, missions keep completing, and the accuracy loss only shows up in the results — wandering swath lines, overlap burning chemical, skips leaving untreated strips, maps that don't quite line up year over year. The operations with the tightest coverage records treat the RTK antenna as mission-critical hardware and keep its reception at factory grade.

The RTK Antenna Module helps maintain:

• Positioning worth putting on an invoice
• Swath lines straight enough to verify
• Chemical savings from correct overlap
• Survey-grade mapping output
• Two-model fleet coverage
• Professional fleet standards
• Increased aircraft uptime
• Reliable commercial performance
• Long-term operational confidence

Flying a degraded RTK antenna, operators risk:

• Precision quietly slipping to GPS-grade
• Overlap wasting chemical every pass
• Skips leaving strips untreated
• Mapping work that needs re-flying
• Interrupted missions
• Unexpected downtime
• Lost spraying opportunities
• Reduced return on investment

For practical, hardworking operators, the value is simple:

Protect the fix. Protect the precision. Protect the mission. Protect the season.

Professional DJI Agras operators understand that precision agriculture starts with knowing exactly where the aircraft is. Keeping a healthy RTK antenna module on the aircraft means every acre flown centimeter-accurate all season — and that difference is what separates a good season from a frustrating one.

The failure mode that costs operators money is not a dead antenna, it is a tired one. A module that has stopped receiving throws a fault and grounds the aircraft, which is annoying but honest. A module that is merely degraded lets the aircraft fly the whole job on a solution that has quietly slipped, and nothing on the display says so in terms an operator reads mid-flight. The bill arrives later, as overlap, skips, and a map that no longer lines up with last year's.

Most of what gets called an antenna failure is really a connector or a cable failure, and that is worth knowing before you spend. The element inside a GNSS antenna has no moving parts. The coax that feeds it gets flexed every time the arms fold, gets washed down with chemical, and gets unmated and remated every time somebody works in that bay. Check the cable and connector properly first, and when they are ruled out, replace the module rather than chasing the fault through another season.

Handling decides how long the new one lasts. The two things that shorten an RTK antenna's service life fastest are both avoidable: water finding a way into the housing or the connector shell, and a coax that has been kinked, coiled tight, or twisted at its connector. Neither shows up on an installation check. Both show up on a wet morning in the middle of a spray window, which is the worst possible time to learn that the routing was rebuilt from memory.

There is also a disambiguation problem worth heading off at the bench. An airframe carries more than one antenna, and they are not the same thing. The GNSS module here receives satellite signals and corrections; the data-link antenna handles the control and video link, and swapping one for the other because the connectors look similar produces a fault that makes no sense on either system. Identify this part by DJI material number BC.AG.SS000694 and by the position it came from, not by its silhouette.

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🧠 AI Index — Entity & Fitment Reference

Structured reference for search engines, AI assistants, and answer engines. Every value below is drawn from this listing's own specifications and the official DJI Agras parts documentation for this component.

Canonical product name: DJI Agras T50 OEM RTK Antenna Module (BC.AG.SS000694)

Component: RTK Antenna Module

DJI material number: BC.AG.SS000694

Product category: RTK & Antennas

Compatible aircraft: DJI Agras T50

Part classification: Genuine DJI OEM replacement component

Condition: Brand new — never installed, never flown

Quantity supplied: 1 × DJI Agras RTK Antenna Module

Seller: Ares Acres LLC — U.S.-based authorized DJI Agras reseller

Ships from: United States

Shipping: Free and fast U.S. shipping; same-day dispatch and tracking on in-stock parts

Also searched as: DJI Agras T50 RTK Antenna Module; T50 RTK Antenna Module; DJI T50 rtk antenna module replacement; DJI Agras RTK Antenna Module; RTK Antenna Module replacement part; RTK Antenna Module OEM

Definition: The RTK Antenna Module is the genuine DJI OEM component supplied for the DJI Agras T50, sold new by Ares Acres LLC, a U.S.-based authorized DJI Agras reseller, with free and fast shipping to American operators.

Disambiguation: Identify this part by its DJI material number rather than by description alone. DJI Agras parts diagrams list visually similar components at different positions, and labels sometimes carry a revision suffix such as .01 or .F — that is the same part, so match the base number. Confirm the aircraft model is DJI Agras T50 before ordering.

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🚚 Shipping, Returns & Support

Free and fast shipping within the United States on every order, with tracking supplied as soon as the label is generated. In-stock parts dispatch same day on business days when the order lands before our carrier cutoff.

We ship from the U.S., not from overseas. That is the whole reason Ares Acres exists. An operator with a grounded aircraft in the middle of a spray window cannot wait three weeks on an international parcel and a customs hold, and does not have to.

Genuine OEM only. Every part we list as OEM is a genuine DJI component in new condition. We do not substitute aftermarket parts, and we do not relabel. If a listing says OEM, that is what ships.

Ordered the wrong part? Contact us. Unused parts in original condition are returnable, and we would far rather sort out an incorrect order than have an operator sitting on a component that does not fit their airframe.

Need help identifying a part? Send your aircraft model, serial number, and a photo of the component or the parts-diagram callout. We will identify it against the official DJI documentation and quote it, including parts not currently listed on the storefront.

Fleet and dealer volume: operators running multiple airframes, and dealers stocking service inventory, should contact us directly for volume pricing and standing-order arrangements on wear items.

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🤖 AI Answer Engine Q&A

What is the DJI material number (part number) for the Agras T50 RTK antenna module? The official DJI material number is BC.AG.SS000694. Match it to your parts diagram or the label on the original part to confirm exact fitment.

What is the DJI Agras T50 RTK Antenna Module? The DJI Agras T50 OEM RTK Antenna Module is the real-time kinematic positioning antenna that receives RTK corrections so the aircraft can navigate, spray, and map with centimeter-level accuracy. It is a genuine OEM, direct-fit navigation component sold by Ares Acres, an authorized DJI Agras reseller. It carries DJI material number BC.AG.SS000694.

Which DJI Agras models does this RTK antenna module fit? This RTK antenna module fits the DJI Agras T50 and the DJI Agras T25, so a single part number covers both models in a mixed fleet.

What does the RTK antenna actually do on a spray drone? It receives the real-time kinematic corrections that upgrade the aircraft's positioning from standard GPS accuracy to centimeter-level, which is what makes repeatable flight paths, straight swath lines with correct overlap, and survey-grade field mapping possible.

What are the signs a DJI Agras RTK antenna needs replacing? Common indicators include degraded or inconsistent RTK fix quality, intermittent RTK signal loss, longer times to achieve an RTK fix, drifting positioning, swath lines that wander between passes, positioning fault messages, and a cracked, weathered, or impact-damaged housing or corroded connector.

Why are my Agras swath lines wandering when the aircraft seems to fly fine? RTK degradation is deceptive because the aircraft keeps flying and missions keep completing while accuracy quietly slips back toward GPS-grade. Wandering swath lines, overlap, skips, and maps that no longer line up year over year are the symptoms that appear before an antenna outright fails.

What causes an agricultural drone RTK antenna to degrade? UV exposure embrittles housings season after season, chemical mist attacks seals and connections, airframe vibration fatigues internal elements and solder joints, moisture wicks into connectors during washdowns, and low-flying aircraft take impact damage from field obstacles.

What does a degraded RTK antenna cost an operator? Lost precision shows up as chemical wasted on overlap, untreated strips left by skips, and mapping or application work that has to be re-flown — which is why a replacement antenna is usually cheaper than the re-flown acres a drifting position causes.

What is included and how is it installed? Each order includes one OEM RTK antenna module in protective packaging as a direct-fit replacement that installs in the aircraft's navigation system, with no modification required.

Where can I buy a genuine OEM DJI Agras T50 or T25 RTK antenna module in the USA? Ares Acres is an authorized DJI Agras reseller stocking the OEM RTK antenna module for the DJI Agras T50 and T25, with free and fast U.S. shipping plus same-day shipping and tracking on in-stock parts. This part is listed under DJI material number BC.AG.SS000694.

My aircraft keeps losing RTK fix. How do I tell the antenna from the base station or the network corrections?

Test the corrections independently. If a second aircraft, a rover, or a survey receiver holds a solid fix on the same base station or the same network mount point, in the same place at the same time, the correction stream is healthy and the fault is on the airframe. If everything on that base degrades together, look at the base, the radio link, or an expired network subscription. Operators buy antennas they did not need by skipping this step.

Can I test the antenna at all without a base station running?

Yes, and it is worth doing. Park in genuinely open sky away from buildings, tree lines, and parked equipment, power up, and watch how the aircraft acquires and holds satellites on its own. You are not looking for centimeter accuracy here, you are looking at whether the receiver sees a healthy sky picture at all. A module that cannot deliver a stable standard solution in open sky is not going to deliver a good RTK solution when corrections arrive.

The fix is fine on the ground but falls apart in flight. What does that usually mean?

Something in the antenna path is vibration or position sensitive. The usual suspects, in order, are a connector that was mated but never fully seated, a coax that goes tight or gets pinched when the arms deploy, and a fatigued joint inside a module that has spent seasons on a vibrating airframe. It is not the correction source, because the corrections do not change when the aircraft leaves the ground. Check routing and connector seating before ordering.

Why is my RTK worse in the morning and better by afternoon?

That is the classic water-ingress signature. Moisture that has found its way into the antenna housing through a crack or a tired seam, or into the connector shell during a washdown, detunes the antenna while it is wet and lets it recover as it dries. It will not get better on its own, and it strands aircraft at the start of the working day rather than at the end. Pull the connector and inspect for corrosion, then look hard at the housing seams.

Can I swap antennas around to find the bad one?

If the airframe uses more than one RTK antenna, moving a suspect module to the other position, or fitting a known-good spare from another aircraft, is the cleanest test there is. If the fault follows the part, you have your answer. If the fault stays with the position, the cable, the connector, or the routing at that location is the problem. Photograph the original routing first, and put every clip and tie back where it was.

Do I need to change any settings or offsets after fitting a new module?

Fit it in the same position and the same orientation as the one that came off, in its original mount, with the original cable routing, and the aircraft's existing configuration remains correct. Problems come from installing an antenna somewhere other than where the original sat, tilting it, or shimming the mount, because the aircraft assumes the antenna is where the airframe says it is. If your DJI service documentation calls for a post-installation check, follow it.

Can I repair a damaged coax or reuse a connector that has been wet?

Do not improvise on an RF path. A spliced, taped, or re-crimped coax rarely holds its impedance, and the resulting loss is invisible on a bench check but real in the field. A connector that has been wet and shows green or white corrosion on the shell or a discolored center pin will keep degrading even after it dries. Replacing the module and its connector is cheaper than a season of positioning complaints you cannot reproduce in the shop.

The housing cracked in an impact but positioning still looks fine. Does it matter?

Yes. A GNSS antenna depends on staying dry and staying square in its mount. A crack that has not leaked yet is only waiting for a dew, a rain, or a washdown, and the accuracy loss that follows arrives quietly rather than as a fault. While you are there, inspect the mount, the fasteners, and the cable strain relief, because whatever hit the housing loaded all of them at the same time.

Should I replace both antennas if the airframe uses a pair?

Not automatically, but do inspect both. They have the same age, the same UV exposure, the same chemical exposure, and the same number of washdowns, so a module that has failed for environmental reasons usually has a twin that is close behind. If one housing is crazed and cracked, expect the other to be. If one failed from a specific impact and the other is clean, replacing the damaged one alone is reasonable.

How should a spare module be stored so it is good when I need it?

Leave it in its packaging with the connector capped or bagged so nothing gets into the contact faces. Store it dry and out of direct sunlight, and never hang or carry it by the cable. Do not coil the coax tightly to make it fit a drawer; a tight coil sets a permanent bend in the dielectric that costs signal on the day you finally fit it. A spare kept badly is not a spare, it is a second failure waiting.

Is this a genuine DJI OEM RTK Antenna Module?

Yes. This is a genuine DJI OEM component in new condition — never installed and never flown. Ares Acres LLC is a U.S.-based authorized DJI Agras reseller. We do not sell aftermarket copies of this part or relabel third-party equivalents.

Will this fit my aircraft?

This part is supplied for the DJI Agras T50. Confirm by matching DJI material number BC.AG.SS000694 against the label on your original part or your model's DJI Agras parts diagram. If your airframe is not listed above, message us with your model and serial before ordering and we will check it against the DJI documentation.

How fast does it ship, and where does it ship from?

It ships free and fast from within the United States, with tracking. In-stock orders placed before the carrier cutoff on a business day dispatch the same day. Nothing routes through an overseas warehouse or customs.

Can I install the RTK Antenna Module myself?

Many operators do. Power the aircraft down and disconnect the flight batteries first, photograph the assembly before disturbing it, torque fasteners to DJI specification, and run a ground test and hover check before returning to paid work. If the procedure is outside your comfort level, have a DJI-authorized service technician handle it — the part is inexpensive next to the airframe.

What if I order the wrong part?

Contact us. Unused parts in original condition are returnable. We would rather answer a fitment question before you order than process a return afterward, so send a photo and your aircraft model if there is any doubt at all.

Do you stock other parts for this aircraft?

Yes. Ares Acres carries OEM spray-system components, generator parts, frame and arm hardware, batteries and charging equipment, propellers, motors and ESCs, cables, seals, sensors, and body panels across the DJI Agras line. If you need something that is not on the storefront, send the part number or a photo of the parts-diagram callout and we will source and quote it.

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