🎛️ FlySpark Opticallink GBD — Fiber Optic Ground Station (Ground-End Controller)

⚡ Overview

The FlySpark Opticallink GBD is the ground-end fiber controller module for drone fiber-link systems. It enables ground↔air bi-directional control/telemetry + real-time video transport over 1 km to 30 km when used with FlySpark fiber spools and the Opticallink SKY (air-end) module.

If you need a link that stays stable in harsh RF environments (crowded spectrum, noisy sites), fiber gives you a connection that’s physically wired and predictable.

✅ Key Features

• 🔋 Built-in rechargeable battery: 7.4V 6600mAh Li-Ion

• 🔁 Bi-directional data link (control + telemetry both ways)

• 🎮 Flight controller compatible: TTL / SBUS (PPM mentioned on your page)

• 🎥 Video formats supported: NTSC / PAL / SECAM

• 🌐 Optical wavelengths: 1310nm & 1550nm

• 🔌 FC single-mode fiber interface (threaded/screw-coupling style = stable in vibration)

• 🧲 Data interface: GH1.25 (1.25mm pitch, locking style connector family)

• 🛡️ Aluminium alloy body (durability + EMI resistance)

• 🧵 Uses Single-Mode single fiber (G657A2) link system

🔗 How the system works (simple)

1. GBD (Ground) connects to your fiber spool via FC connector.

2. The other end connects to Opticallink SKY (Air-end) on the drone.

3. Control/telemetry goes via TTL/SBUS, and video is transported through the fiber link (video formats listed above).

⏱️ About latency (real numbers, not hype)

Fiber propagation speed is about ~2/3 the speed of light , commonly estimated as ~4.9 µs/km in single-mode fiber — so 30 km ≈ 147 µs one-way (propagation only).

⚙️ Technical Specifications

(From your product page)

• Product: Opticallink GBD Ground End Module

• Battery: 7.4V 6600mAh Li-Ion (rechargeable)

• Weight: 186g ±2g

• Body material: Aluminium alloy

• Dimensions: 123 × 56 × 31 mm

• Fiber type: Single Mode – Single Fiber (G657A2)

• Fiber interface: FC (Single-Mode)

• Data interface: GH1.25

• Data direction: Bi-directional

• Data format: TTL / SBUS

• Speed support: 0 ~ 1 Mbps

• Video format: NTSC / PAL / SECAM

• Wavelength: 1310nm & 1550nm

• Transmission range: up to 30 km (depends on spool)

📦 What you get in the box (Included)

✅ 1× FlySpark Opticallink GBD Ground Station module
✅ 1× Built-in rechargeable battery (7.4V 6600mAh Li-Ion)

❌ Not included (unless you bundle it)

• Opticallink SKY (air-end) module

• Fiber cable tray/spool (1–30 km)

🧵 Why G657A2 fiber matters (quick)

Your system mentions G657A2, which is bend-insensitive single-mode fiber. ITU-T states G.657.A2 is appropriate for a minimum design bend radius of 7.5 mm.
Translation: better tolerance during deployment/winding vs standard fiber (still: don’t abuse it).

🎯 Applications

✅ UAV fiber telemetry & command links
✅ Drone tethering systems
✅ Real-time video transmission for long-range monitoring
✅ Industrial inspection / forest surveillance / R&D testing

🚚 Store Support (as shown on your page footer)

• 🚚 Free Doorstep Delivery

• 🔁 30-Day Return Policy

• 🛠️ 7-Day Customer Support

• 🔒 Safe & secured payment

❓FAQ (Expanded + practical)

1) What exactly does the Ground Station do?

It’s the ground-end controller that interfaces your fiber spool + air-end module, and provides the base-side handling for video + control/telemetry.

2) What range will I get?

1–30 km, based on the fiber spool length you use.

3) Is it really low-latency?

Fiber propagation is extremely fast (rule-of-thumb ~4.9 µs/km).
Most “noticeable latency” usually comes from encoding/processing, not the fiber itself.

4) What video types are supported?

Your listed supported formats are NTSC / PAL / SECAM.

5) Does it support “digital video”?

Be careful with that claim. Your spec lists analog broadcast standards (NTSC/PAL/SECAM) and your data channel is 0–1 Mbps , which is not “normal digital FPV” bandwidth.
Best practice wording: supports analog video transport; for digital workflows, use the correct encoder/bridge and talk to FlySpark for integration.

6) Which flight controllers are compatible?

TTL / SBUS are explicitly listed; PPM is mentioned on the page.

7) What connector is the fiber interface?

FC single-mode.
FC connectors use a threaded coupling and are commonly chosen for high vibration environments.

8) What’s GH1.25?

It refers to a 1.25mm pitch locking connector family (commonly used in compact electronics).

9) Is the battery included?

Yes — included. Your page already says “compact ground station with 6600mAh rechargeable battery” and lists 7.4V 6600mAh in specs.
Important: your page currently has a contradictory “not included” line in a second spec table — remove that to avoid customer disputes.

10) What’s the battery spec?

7.4V 6600mAh Li-Ion, unit weight 186g ±2g.

11) What fiber type is used?

Single Mode – Single Fiber G657A2.

12) How tough is the enclosure?

Body is aluminium alloy.

13) Can I use a third-party spool?

If it matches single-mode + FC interface and your system optical requirements (1310/1550nm), it may work, but the guaranteed setup is FlySpark spool + FlySpark SKY.

14) What’s the max data speed?

0 ~ 1 Mbps (per your spec).

15) Does FC matter in vibration?

Yes — FC is a threaded/screw coupling style, typically used where secure coupling matters.

16) Can the fiber be bent tightly?

G.657.A2 is bend-insensitive; ITU-T cites 7.5 mm minimum design radius.
Still: avoid sharp kinks; that’s how people destroy fiber.

17) Is it plug-and-play?

Physically yes (connectors/interfaces are standardized), but real “plug & play” depends on your air-end module, FC cleaning, and correct wiring of TTL/SBUS.

18) What’s included vs required to complete the system?

Included: GBD + battery.
Required for a working link: fiber spool + SKY end.

19) Delivery/returns/support?

Your page shows: Free doorstep delivery, 30-day return, 7-day support.

20) Who supplies it in India?

FlySpark / Anushakti Infotech Pvt. Ltd. is stated as the supplier on your page.