Side-by-side
TDx TD/PM Circle-H segment light vs PAPI & Airfield Photometric Calibration System — mobile (Unika / PAC, distributed by Vardhman Airport Solutions)
Spec comparison for two products on Aviation Souk. Both compete in Runway Lighting & Airfield Electrical.
Runway Lighting & Airfield Electrical
TDx TD/PM Circle-H segment light
by Aerolighting SA
Ultra-low-profile LED segment light delivering TD/PM and Circle-H helipad markings in a single CNC-machined aluminum unit.
Runway Lighting & Airfield Electrical
PAPI & Airfield Photometric Calibration System — mobile (Unika / PAC, distributed by Vardhman Airport Solutions)
by Vardhman Airport Solutions
A paired photometric calibration solution — vehicle-mounted mobile runway/taxiway light measurement and tripod-based PAPI angle calibration — enabling airfield maintenance teams to verify ICAO and FAA photometric compliance on the airfield without the airport closing.
| Cost of ownership | TDx TD/PM Circle-H segment light | PAPI & Airfield Photometric Calibration System — mobile (Unika / PAC, distributed by Vardhman Airport Solutions) |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 0 |
Specs
Technical specifications.
| Spec | TDx TD/PM Circle-H segment light | PAPI & Airfield Photometric Calibration System — mobile (Unika / PAC, distributed by Vardhman Airport Solutions) |
|---|---|---|
| Length | 520 mm | — |
| Height | 19 mm | — |
| Glass protrusion | 2.8 mm | — |
| Power per segment | ~6 W | — |
| Segment width | 100 mm | — |
| Minimum segments (Circle-H) | 16 | — |
| Available colors | Green, Yellow | — |
| Standards | ICAO Annex 14 Vol II, CAP437 TD-PM, ICAO ASPSL | — |
| Warranty | 5 years | — |
| Mobile PAC max survey speed | — | 60 km/h |
| Mobile PAC max samples per fitting | — | 65,000 |
| Mobile PAC measurement range | — | up to 30,000 cd |
| Mobile PAC operating surface | — | Dry or wet |
| PAPI calibration time (full 4-unit bar) | — | <1 hour |
| PAPI system angle measurement sensor | — | Gyroscope + PTZ camera + motorised axis |
| Data transfer | — | WiFi / Ethernet |
| Night operation | — | Yes (both systems) |
| Compliance standard | — | ICAO Annex 14 / FAA |
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