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Flysky FGr4B 2.4GHz 4CH AFHDS 3 Enhanced RC Receiver
Flysky
SKU: 202412SID143
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Precio de venta
$35.99
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Precio normal
$35.99
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Flysky FGr4B 2.4GHz 4CH AFHDS 3 Enhanced RC Receiver
Precio de venta
$35.99
Precio normal
Precio normal
$35.99
Precio unitario
por
Frequently Asked Questions
What is the difference between the FGr4B and FGr4S?
The FGr4B has an external single antenna that you can position for optimal signal routing — useful in metal-chassis RC cars where a built-in antenna would be shielded. The FGr4S has a fixed built-in single antenna, making it even more compact but less flexible for antenna placement. Both support AFHDS 3 and the same output modes.
What is the difference between the FGr4B and FGr4D?
The FGr4D is the more advanced model: it has dual built-in antennas, IPX6 nano waterproof coating, BVD battery voltage detection, and i-BUS2 support. The FGr4B has a single external antenna, no waterproofing, and standard i-BUS (no i-BUS2 or BVD). Choose the FGr4B if you need a small, antenna-flexible receiver without special waterproofing; choose the FGr4D for wet environments and full telemetry.
Which transmitters are compatible with the FGr4B?
The FGr4B is compatible with all Flysky AFHDS 3 transmitters and RF modules, including PL18, PL18 EV, Paladin EV, NB4, NB4 Lite, NB4 Pro+, NB4+, and PA01. It is not compatible with AFHDS 2A transmitters.
Can I configure the FGr4B output mode?
Yes. The FGr4B output mode (PWM, PPM, i-BUS, or S.BUS) is configured via the paired transmitter menu. Refer to your transmitter’s manual or the Flysky RGB Assistant software for configuration steps.
What failsafe behavior does the FGr4B have?
If no failsafe is configured on the transmitter, the FGr4B will stop PWM/PPM/i-BUS output when signal is lost. S.BUS holds the last received value. If failsafe is configured, all channels output the preset safe values defined in the transmitter.
What's in the Box
- 1x Flysky FGr4B Receiver
- 1x Bind Cable
- 1x External Antenna
Let customers speak for us
As always, a great buying experience.
As always, a great buying experience.
Thanks.
Yaron.B
Great frame
Great frame for the money, pretty fast shipping considering it came from over seas
OverFlowFpv
This is a must have.
Awesome, hands ands down. Easy set up and feels very sturdy.
Kyle Reed
Easy Install
Plug and play installation, just ensure that the models are backed up, import it back and bind your receivers and your good to go, nice upgrade for the original nb4.
Jerrywin Waga
Easy to fit and works!
Mark
Esta bien pero prefiero speedy
Esta bien pero prefiero speedy bee
Yunior
ST8 FLYSKY
Parfait produit conforme et livraison rapide
Frédéric Mistral
This protection frame fit well. Looks great. Thanks
David
Esta bien pero prefiero speed bee
Esta bien pero si puedes compra speedy bee
Yunior
Radio clamp
This brace for my transmitter works awesome
Ray Petrocelli
Receivers
Iam happy with the purchase everything works good
Anthony
The fit and finish is so nice. It is awesome to finally have the protection on the bottom battery as well.
Thomas
Steering wheel fpc
Thanks soarsky for the bonus, i only order 1pcs but i get 2 pcs so happy 😊😊..
Momo Momo
Nice product
Nice product
Carlos Garcia
It arrived in a timely manner
Joshua
Description
The Flysky FGr4B is a compact 4-channel AFHDS 3 receiver with an external single antenna. That antenna can be positioned around a metal chassis or crowded electronics bay, while PWM, PPM, i-BUS, and S.BUS outputs give you flexibility across RC car and boat builds.
📋 Contents
Key Features
- ✅ AFHDS 3 Protocol — Flysky 2.4GHz third-generation digital system with bidirectional transmission and anti-interference performance
- ✅ External Single Antenna — route the antenna for better placement flexibility in tight or metal-chassis installations
- ✅ Four Output Modes — PWM, PPM, i-BUS, and S.BUS output for different receiver and control setups
- ✅ Compact Form Factor — 17 × 29 × 16mm and 6.4g for small RC car and boat builds
- ✅ Wide Input Voltage — 3.5–9V DC input suits common RC power systems
- ✅ Online Firmware Update — update through a compatible transmitter without a PC
- ✅ Configurable Failsafe — set safe channel behavior through the paired transmitter
- ✅ RSSI Telemetry — monitor signal strength feedback on a compatible transmitter
⚠️ The FGr4B uses a single external antenna and standard i-BUS output. It does not provide the dual built-in antennas, IPX6 coating, BVD, or i-BUS2 features associated with the FGr4D.
Review Video
Real-world review: Flysky FGr4B AFHDS 3 enhanced receiver with external antenna
Gallery
Flysky FGr4B — compact AFHDS 3 receiver for RC car and boat installations
FGr4B — external single-antenna design for flexible signal routing
FGr4B — compact receiver layout for space-conscious builds
FGr4B — PWM, PPM, i-BUS, and S.BUS output reference
FGr4B — receiver installation and connection detail
FGr4B — wiring and mounting reference
FGr4B — size and connector reference
Specifications
Transmitter Compatibility
Compatible with Flysky AFHDS 3 transmitters and RF modules, including:
- Flysky PL18 / PL18 EV / Paladin EV
- Flysky NB4 / NB4 Lite / NB4 Pro+ / NB4+
- Flysky PA01
- Other AFHDS 3-capable RF modules
⚠️ Confirm that your transmitter or RF module supports AFHDS 3 before ordering. The FGr4B is not compatible with AFHDS 2A transmitters.
Related Reading
Deciding between Flysky AFHDS 3 receivers? These SoarSky guides cover comparisons, use-case selection, and feature differences:
- 📖 The Difference Between Flysky FGr4B and FGr4D Receiver — external antenna vs dual built-in antenna, IPX6 waterproofing, i-BUS2 and BVD compared
- 📖 The Difference Between Flysky AFHDS 3 Receivers — full lineup comparison: FGr4B vs FGr4S vs FGr4D and more
- 📖 Flysky AFHDS 3 Receiver Buying Guide 2026 — detailed side-by-side specs and best-use-case recommendations
- 📖 How to Choose a Flysky AFHDS 3 Receiver for Boat & Ground Vehicles — application-specific guide for RC cars and boats
Shipping Info
🏭 Fulfillment Warehouses
SoarSky operates warehouses in the US, Europe, and China. Orders are fulfilled from the nearest local warehouse. If local stock is unavailable, your order will ship from our China warehouse and international shipping times will apply.
💰 Shipping Rates
| Type | Condition | Cost |
|---|---|---|
| Free Shipping | Orders over $100 | Free |
| Standard Shipping | Orders under $100 | Based on weight & address |
| International Shipping | All international orders | Based on destination & weight |
💡 Tax Notice: Import taxes are covered by SoarSky RC for most countries. For a small number of countries where local regulations require the recipient to pay taxes, the amount is based on the declared value set by SoarSky RC.
⏱️ Dispatch & Delivery Times
⚡ Most orders are dispatched within 48 hours of placement.
| Region | Estimated Delivery |
|---|---|
| Domestic (US) | 5–10 business days |
| International | 10–15 business days |
* Customs processing may affect international delivery times.
🚫 Shipping Restrictions
⚠️ Important: We cannot deliver to PO Boxes, APO/FPO, or other military addresses.
Some remote areas may experience longer delivery times or limited shipping options. We will notify you if any issues arise.
📦 Order Tracking
Once your order ships, you will receive a confirmation email with a tracking number. Track your shipment via:
| Platform | Link |
|---|---|
| 17Track | www.17track.net |
| SoarSky Order Tracker | soarskyrc.com/pages/track-order-1 |
📬 Contact Us
If you encounter any issues such as damaged items or lost packages, please contact our customer service team as soon as possible and we will work to resolve it promptly.
✅ Email: soaringskystore@protonmail.com