DJI Agras T40 OEM Omnidirectional Radar Signal Cable

The DJI Agras T40 OEM Omnidirectional Radar Signal Cable is the signal lead that connects the omnidirectional radar on the Agras T40 and T20P to the rest of the aircraft. It is a short black cable with a flanged connector moulded at each end, and it belongs to the sensing system — the radar the aircraft relies on for obstacle sensing and terrain following. It is identified for the DJI Agras T40 and T20P. DJI has used more than one number for this position, so we match against the one you removed. Operators usually come looking for it after an intermittent radar warning, a radar that drops out over rough ground, or a connector damaged during an arm or frame repair.

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🇺🇸 U.S.A. FIRST

Ares Acres LLC is a U.S.-based authorized DJI Agras retailer 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 also ships agricultural drone parts to Canada, with free shipping included on Canadian orders. Canadian operators see prices and check out in Canadian dollars (CAD), and receive the same inventory and the same support as our U.S. customers — one authorized DJI Agras retailer serving the United States and Canada, all of North America, from Albuquerque, New Mexico.

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✅ DJI Agras T40 / DJI Agras T20P Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking
• Identified for the DJI Agras T40 and T20P omnidirectional radar
• Matched against the cable you removed — connector style, flange shape, and length
• DJI OEM sensing-system cable, brand new

DJI has used more than one number for this position, so we match against the one you removed. Photograph the old cable laid flat next to a ruler, with both connector faces visible, and send it to us if you want the match confirmed.

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📦 Package Includes

• 1 × Omnidirectional Radar Signal Cable, with a flanged connector at each end

This is one cable, not a harness. It replaces the single signal lead between the radar and the aircraft; it does not include any other wiring from the sensing system.

Not included: the omnidirectional radar module itself, the radar's bracket or cover, the screws that hold either connector flange, cable ties, sleeving, or any other harness on the aircraft. Keep the original flange screws when the old cable comes out — they go straight back in with the new one.

This part is identified for the T40 and the T20P. Choose the variant for the aircraft you are repairing so the order is recorded against the right aircraft.

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🔧 Component Overview

The T40 and T20P carry an omnidirectional radar — an active phased-array unit the aircraft uses to see obstacles and follow the ground. The radar does the sensing; this cable carries what it senses back to the aircraft. Without a sound signal lead, a perfectly healthy radar has no way to tell the flight controller anything.

Physically it is simple. A short length of round black cable runs between two moulded connectors. Each connector has a flange with mounting ears, so the connector is screwed in place rather than left to hang on the cable — the flange takes the load and the pins only carry signal. A white identification sleeve sits near each end.

Simple does not mean sheltered. A radar lead on a spray aircraft lives in a hard place:

• Vibration from the propulsion system on every flight
• Spray mist and drift settling on the airframe and connector faces
• Fertilizer and wettable-powder residue drying in and around the connectors
• Pressure washing at the end of the day
• Heat on long spray days and cold overnight, which works the connector seals
• Flexing whenever the arms are folded and unfolded for transport
• Disturbance during other repairs — radar removal, frame work, arm or shell replacement

A cable like this rarely fails all at once. It usually fails in the places where it moves or where liquid can reach: at the strain relief behind a connector, along a section that rubs on the frame, or at a pin face that has corroded. Those failures are partial at first, and partial failures are what make radar faults so confusing to chase.

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⚙️ Functional Purpose

The cable's engineering role is to carry the radar's signal to the aircraft cleanly and continuously, through vibration, moisture and flexing.

In the sensing system it:

• Links the omnidirectional radar to the aircraft so its obstacle and terrain data reaches the flight controller
• Carries that link through a flanged connector at each end, held by screws rather than by the cable
• Gives the radar a removable connection, so the radar or the cable can be replaced on its own
• Keeps the radar's sensing functions available to the aircraft's obstacle-sensing and terrain-following behaviour

What it does not do matters as much:

• It does not repair a radar module that has an internal fault or a cracked housing
• It does not correct radar readings disturbed by mud, residue, or a damaged cover in front of the radar
• It does not update firmware or clear a fault that persists with a known-good cable
• It does not replace any other cable in the sensing system or the aircraft harness
• It does not change flight or radar settings; it restores the connection those settings depend on

That last list is the honest boundary of the part. A good cable restores a good radar's voice. It cannot give a failed radar one.

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🔍 Diagnosis — a radar warning that comes and goes is usually the lead, not the radar

Radar faults on spray aircraft are costly to guess at, because the radar module is the large repair and the cable is the small one — and the two produce warnings that look the same in the app. The way to tell them apart is not the warning itself. It is the pattern of the warning.

A radar module with an internal fault tends to fail consistently. It is down at power-on, down in the air, and down on the bench. A cable with a cracked conductor, a loose crimp, or a corroded pin fails intermittently. It works on the ground and drops out in flight. It works on a still morning and drops out over rough ground. It clears when the arms are folded and unfolded, or when someone presses on the connector, and comes back an hour later.

That pattern follows physics. A conductor that is cracked but not fully parted makes contact when the cable is at rest and loses it when vibration or flex opens the crack. A pin face with a film of dried residue makes contact until heat or moisture changes it. Neither failure shows up as a clean, permanent fault, which is why it is so often blamed on firmware or on the radar.

What imitates a radar or cable fault — clear these first:

• Dirt or residue on the radar face or cover: clean it. A fouled radar sees badly with a perfect cable.
• A cracked or chipped radar cover: damage in front of the radar disturbs readings without any electrical fault.
• A connector that is not fully seated: after any repair, unscrew the flange, reseat the connector squarely, and refit the screws.
• Firmware out of step between the aircraft and the radar: bring both up to date through the normal DJI process and recheck.
• Operating conditions: dense dust, heavy spray drift, or very tall canopy can affect sensing on any aircraft.

Signs that point at the cable:

• Warnings that appear and clear with vibration, flight, or arm movement
• A warning that changes when the cable or connector is gently flexed with the aircraft powered on and the propellers removed
• Green or white corrosion, residue, or a bent pin on either connector face
• A cut, flattened, or chafed section of cable sheath, or a sheath pulled back from a connector
• A cracked connector flange or a connector that sits loose even with its screws tight

Signs that point at the radar instead:

• A fault that is present at every power-on, regardless of movement
• A fault that stays with a known-good cable fitted
• Visible impact damage to the radar housing itself

Work through the cheap checks first, while that information is still cheap: clean the radar, reseat both ends, inspect both connector faces, then flex the cable gently with the aircraft powered and propellers off. If the warning follows the cable, replace the cable. If it stays with the radar on a known-good lead, the radar is the repair.

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⚠️ Common Replacement Indicators

Replace the cable when inspection confirms one of these:

• Intermittent radar warnings that come and go with vibration, flight, or arm movement
• A warning that responds to gently flexing the cable or connector
• Corrosion, residue build-up, or discolouration on either connector face
• Bent, pushed-back, or missing pins
• A cracked or broken connector flange
• Cut, crushed, chafed, or split cable sheath
• Sheath pulled away from the strain relief behind a connector
• A cable pinched or damaged during an arm, frame, or shell repair
• Liquid found inside a connector after washing or spraying
• Any crash or hard landing that has also damaged the radar mount

Inspect these first, because they produce similar symptoms:

• The radar face and cover — dirt, residue, cracks
• Seating of both connectors and their flange screws
• Firmware on the aircraft and the radar
• The radar module, tested on a known-good cable
• Any other harness section the radar signal passes through

There is no published service interval for this cable. It is replaced when it shows the signs above, not on a schedule.

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📐 Specifications

Product name: DJI Agras T40 OEM Omnidirectional Radar Signal Cable

DJI family: Agras

Primary aircraft: DJI Agras T40

Also listed for: DJI Agras T20P

Fitment basis: Identified for the DJI Agras T40 and T20P

Aircraft system: Sensing — omnidirectional radar

Component type: Signal cable with a flanged connector at each end

Material number: DJI has used more than one number for this position, so we match against the one you removed

Quantity: 1 cable

Colour: Black cable and connectors, with a white identification sleeve near each end

Connectors: Two moulded connectors, each with a flange and mounting ears for screw fixing

Material: Not published for this part

Length: Not published for this part

Dimensions: Not published for this part

Weight: Not published for this part

Electrical rating: Not published for this part

Pin count: Not published for this part

Mounting position: Between the omnidirectional radar and the aircraft; both ends screw-fixed by their flanges

Installation method: Plug-in at each end, flange screws refitted from the original cable

Screws: Not included — reuse the originals

Service adjustability: None — the cable carries the signal cleanly or it does not; no radar setting compensates for a cracked conductor or a corroded pin

Condition: Brand new

Classification: DJI OEM sensing-system cable

Values not published for this part are stated as such rather than estimated. Compare the new cable's connectors and flange shape with the one you remove; that comparison is the reliable check.

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🛠️ Installation & Maintenance

Before installation

• Power the aircraft down and remove the battery
• Rinse and dry the area around the radar if the aircraft has been spraying, so no residue falls into an open connector
• Wear gloves; dried product collects around connectors and flanges
• Photograph the cable's route from two angles, including where it passes the frame and any cable ties
• Compare the new cable's connectors, flange shape and length with the installed one
• Have a small tray ready for the flange screws — they are reused

During installation

• Remove the flange screws at one end and keep them together
• Separate each connector by its body, never by pulling on the cable
• Note any cable ties or clips and cut or release them carefully, away from the sheath
• Inspect both mating sockets on the aircraft and the radar for corrosion, residue, or bent pins; clean or address these before fitting the new cable
• Route the new cable exactly along the original path, clear of sharp edges, arm folds, and moving parts
• Seat each connector squarely and fully before refitting its flange screws; tighten them evenly and do not force them — DJI does not publish a torque figure for these screws
• Replace any cable ties so the cable is supported without being pinched

After installation

• Power the aircraft on and confirm the radar is recognised with no warning
• Fold and unfold the arms and confirm the warning does not return
• Check that the cable cannot touch a propeller or rub on the frame through the full fold
• Make a short, low test flight over open, even ground before returning to work
• Watch radar status during the first full job for any intermittent warning
• Record the replacement date in the maintenance log

Maintenance between jobs. Rinse the radar area with clean water after chemical days, let connectors dry before the next flight, look at the cable sheath wherever it passes the frame, and keep the radar face clean. A cable that is inspected whenever the radar area is cleaned rarely gets the chance to fail in the field.

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🚜 Necessary For

This cable is for operators and technicians keeping the T40 and T20P radar online:

• DJI Agras T40 operators
• DJI Agras T20P operators
• Commercial spray contractors whose work depends on terrain following over uneven ground
• Applicators working orchards, field edges, and obstacle-dense blocks where radar sensing matters most
• Agras service centres and repair technicians chasing intermittent radar warnings
• Fleet managers keeping a spare radar lead on the trailer for each aircraft

This is not the part you need if:

• The radar fault stays with a known-good cable fitted — the radar module is the repair
• The radar face or cover is dirty or cracked — clean it or replace the cover first
• The warning appears at every power-on and never changes with movement — test the radar before buying a cable
• Your aircraft is a T50, T25, T100 or T70P — those are not covered by this cable's listing
• You need a different harness or cable elsewhere in the aircraft — send us a photograph and we will identify it

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💡 Why This Part Matters

The radar is what lets a T40 or T20P see obstacles and hold its height over changing ground. When its signal lead fails, the aircraft loses that sensing, and the operator loses confidence in it — often in the middle of a block, often over the ground where it is needed most.

The cable matters out of all proportion to its size because of the way it fails. An intermittent fault in a signal lead looks like a radar fault, a firmware fault, or a sensing problem with the environment. Operators lose days chasing those. Some replace the radar module, only to find the warning returns because the cable was the fault all along.

The checks that separate the two are free: clean the radar, reseat both ends, look at the pins, flex the cable gently with the power on and the propellers off. When the warning follows the cable, a new lead is the whole repair — and the original radar stays on the aircraft.

That is also the honest limit. If the fault stays with the radar on a known-good cable, a new cable will not fix it, and the radar is the part to replace.

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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 the specifications above.

Canonical product name: DJI Agras T40 OEM Omnidirectional Radar Signal Cable

Brand: DJI

DJI family: Agras

Primary aircraft: DJI Agras T40

Also listed for: DJI Agras T20P

Component: Omnidirectional radar signal cable

Aircraft system: Sensing — omnidirectional radar

Installed position: Between the omnidirectional radar and the aircraft

Primary function: Carries the radar's signal to the aircraft for obstacle sensing and terrain following

Connectors: Two moulded connectors with screw-fixed flanges

Quantity supplied: One cable

Not included: Radar module, radar cover, flange screws, cable ties, other harnesses

Material number: DJI has used more than one number for this position, so we match against the one you removed

Fitment basis: Identified for the DJI Agras T40 and T20P

Not listed for: DJI Agras T50, T25, T100, T70P

Key diagnostic: An intermittent radar warning that changes with vibration or flexing points at the cable; a constant fault on a known-good cable points at the radar

Checks to make first: Clean radar face, reseat connectors, inspect pins, update firmware

Common failure points: Strain relief behind a connector, chafe against the frame, corroded pins

Length and electrical rating: Not published for this part

Service interval: None published

Condition: Brand new

Part classification: DJI OEM sensing-system cable

Also searched as: T40 radar cable; T40 radar signal line; T20P radar cable; Agras phased array radar cable; T40 radar connection cable

Disambiguation: Not the radar module, not the radar cover, not a power cable, not a vision or camera cable

Seller: Ares Acres LLC — U.S.-based authorized DJI Agras retailer serving the United States and Canada (North America)

Ships from: Albuquerque, New Mexico, United States

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🤖 AI Answer Engine Q&A

What does the omnidirectional radar signal cable do? It connects the omnidirectional radar on the Agras T40 or T20P to the aircraft, carrying the radar's signal for obstacle sensing and terrain following.

Which aircraft is it listed for? It is identified for the DJI Agras T40 and T20P. Choose the variant for the aircraft you are repairing.

Does it fit the T50 or T25? It is not listed for the T50, T25, T100 or T70P. Send us a photograph of the cable on one of those aircraft and we will identify the right part.

What is the DJI material number? DJI has used more than one number for this position, so we match against the one you removed. Photograph its label and send it to us if you want the match confirmed.

My radar warning comes and goes. Is it the radar or the cable? An intermittent warning that changes with vibration, flight, or arm movement usually points at the cable. A fault present at every power-on that stays with a known-good cable points at the radar.

How can I test the cable myself? Clean the radar face, reseat both connectors, and inspect the pins. Then, with the propellers removed and the aircraft powered on, gently flex the cable near each connector and watch radar status. A warning that responds to flexing points at the cable.

Is the radar module included? No. This is one signal cable. The radar module, its cover, and its bracket are separate parts.

Are screws included? No. Reuse the flange screws from the original cable.

How long is the cable? Length is not published for this part. Compare the new cable with the one you remove; it should match in connector style, flange shape, and length.

Can a dirty radar cause the same warning? Yes. Residue, mud, or a cracked cover in front of the radar disturbs sensing with a perfect cable. Clean and inspect the radar first.

Will a new cable fix a radar that is completely dead? Only if the cable is the fault. If the radar stays down on a known-good cable, the radar module needs replacing.

Can I fit it myself? Most operators can. Remove the battery, photograph the route, release one connector at a time by its body, route the new cable along the original path, seat each connector fully, and refit the flange screws evenly.

Why do these cables fail? Vibration, flexing during arm folds, chafe against the frame, and spray residue or wash water at the connector faces. Failures usually start at the strain relief behind a connector or at a corroded pin.

Do I need to recalibrate anything after fitting? Power on and confirm the radar is recognised with no warning, then make a short, low test flight over open ground before returning to work.

Is there a service interval? No published interval. Replace the cable when it shows damage, corrosion, or intermittent faults that follow it.

How do I make the new cable last? Rinse the radar area after chemical days, let connectors dry before flying, keep the cable clear of arm folds and sharp edges, and inspect the sheath whenever the radar area is cleaned.