Side-by-side
PAPI & Airfield Photometric Calibration System — mobile (Unika / PAC, distributed by Vardhman Airport Solutions) vs NARVA Conventional Incandescent Airfield Lamp — Prefocus P28s (7669 / 7654 / 7668C / 7670C / 6936C)
Spec comparison for two products on Aviation Souk. Both compete in Runway Lighting & Airfield Electrical.

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.

Runway Lighting & Airfield Electrical
NARVA Conventional Incandescent Airfield Lamp — Prefocus P28s (7669 / 7654 / 7668C / 7670C / 6936C)
by Vosla Gmbh Narva
P28s prefocus incandescent airfield lamp for constant-current regulated series circuits.
| Cost of ownership | PAPI & Airfield Photometric Calibration System — mobile (Unika / PAC, distributed by Vardhman Airport Solutions) | NARVA Conventional Incandescent Airfield Lamp — Prefocus P28s (7669 / 7654 / 7668C / 7670C / 6936C) |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 0 |
Specs
Technical specifications.
| Spec | PAPI & Airfield Photometric Calibration System — mobile (Unika / PAC, distributed by Vardhman Airport Solutions) | NARVA Conventional Incandescent Airfield Lamp — Prefocus P28s (7669 / 7654 / 7668C / 7670C / 6936C) |
|---|---|---|
| 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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