When RF links are jammed, lost or forbidden, the DPSM-0.27 series keeps the drone connected by a hair-thin optical fiber — nine range steps from 3 to 50 km, G657A2 bend-insensitive fiber, and the 50 km spool weighing just 3.7 kg including its reel (manufacturer specification)†.
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0.27 mm fiber diameter† ｜ 3–50 km nine range steps† ｜ ≤0.25 dB/km @1550 nm† ｜ −40~+85 °C operating range†
Nine Ranges, O
ne Platform Standard
| Range | Total spool weight (incl. ABS reel)† | Total link loss (incl. connectors)† |
|---|---|---|
| 3 km | 369 g | ≤2.1 dB |
| 5 km | — | ≤2.3 dB |
| 10 km | 910 g | ≤4.0 dB |
| 15 km | — | ≤5.8 dB |
| 20 km | — | ≤7.5 dB |
| 25 km | — | ≤9.5 dB |
| 30 km | 2,400 g | ≤11.5 dB |
| 40 km | — | ≤13 dB |
| 50 km | 3,700 g | ≤16 dB |
Weights shown for representative ranges (3/10/30/50 km, manufacturer datasheet); every range’s full weight is given in the datasheet.
Common Specification (all ranges)
G657A2 bend-insensitive single-mode fiber† ｜ 0.27 ±0.02 mm outer diameter† ｜ 80 g/km fiber weight† ｜ Attenuation ≤0.35 dB/km @1310 nm, ≤0.25 dB/km @1550 nm† ｜ FC/UPC connectors standard† ｜ −40 to +85 °C operation†
Why Weight Decides the Mission
At 3.7 kg for 50 km (including reel), the DPSM-0.27 leaves payload budget for the sensor — a decisive margin on small UAVs where every 100 g is flight time. Fiber at 80 g/km means even the 30 km step adds under 2.5 kg of link.
Select in Three Steps
- Range — match the spool to mission radius (3–50 km in nine steps).
- Weight budget — check total spool weight against your payload margin (weights above).
- Interface — FC/UPC standard; other connectors on request; attenuation budget is pre-computed per range (loss table above).
One Link, Integrated With the Platform
Supplied as spools alone, or as a mission package with our UAV platforms — spool payoff mechanics, opto-electric interface and flight procedures configured by one team. For inspection corridors, border roads and emergency sites where radio links degrade, the fiber link is the communication guarantee. Civilian and public-safety missions only.
Frequently Asked Questions
How does a fiber-optic spool protect the link? The physical fiber cannot be radio-jammed and adds near-zero latency; control and video travel over optical fiber for the spooled distance (up to 50 km).
How much does the 50 km spool weigh? 3.7 kg including the ABS reel (manufacturer specification); the fiber itself is 80 g/km — full weight table above.
Which fiber is used? G657A2 bend-insensitive single-mode, 0.27 mm class, with attenuation ≤0.25 dB/km @1550 nm and −40 to +85 °C operating range (manufacturer specification).
Can it integrate with any drone? It integrates with our platforms as a configured package; for third-party airframes, send the interface requirements via RFQ.
What lengths are available? Nine standard steps: 3, 5, 10, 15, 20, 25, 30, 40 and 50 km.
Request a Quote ｜ Request Datasheet ｜ Related: Anti-jamming communication guide · Surveillance missions