Compilation of basic technical specifications of the EISCAT facilities
| Location | Tromsø | Kiruna | Sodankylä | Longyearbyen | Tromsø Heater | |
| Band | VHF | UHF | VHF | VHF | UHF | HF |
| Transmitter frequencies | 222.8 – 225.4 MHz | 926.6 – 930.5 MHz | – | – | 498.0 – 502.0 MHz | 3.85 – 8.00 MHz |
| Transmitter | 1
klystron |
2 klystrons | – | – | 16
klystrons |
12 linear class AB tetrode valves |
| Peak power | 1.6 MW | 2 MW | – | – | 1 MW | 12×100 kW |
| Average power | 200 kW | 250 kW | – | – | 250 kW | 12×100 kW |
| Pulse duration | 1 µs – 2.0 ms | 1 µs – 2.0 ms | – | – | 0.5 µs – 2.0 ms | > 20 µs |
| Minimum interpulse | 1.0 ms | 1.0 ms | – | – | 0.1 ms | 20 µs |
| Phase coding | Binary | Binary | – | – | Binary | – |
| Receiver frequencies | 214.3-234.7 MHz | 921.0-933.5 MHz | 224.0-230.5 MHz | 224.0-230.5 MHz | 485.0-515.0 MHz | – |
| Receiver | Analog | Analog | Analog | Analog | Analog | – |
| System temperature | 250-350 K | 90-110 K | 100 K | 100 K | 65-80 K | – |
| Digital processing | 14-bit 15 MHz ADC, digital conversion to baseband, 32-bit complex integer | – | ||||
| Baseband channels | 6 | 6 | 6 | 6 | 2 — 6 | – |
| Antenna | Four 30—40 m steerable parabolic cylinders | 32 m steerable parabolic dish | 32 m steerable parabolic dish | 32 m steerable parabolic dish | 42 m fixed and 32 m steerable parabolic dishes | Three arrays of dipole antennas |
| Feed system | Line feed, 128 crossed dipoles | Cassegrain | Crossed dipole | Crossed dipole | Cassegrain | – |
| Gain | 46 dBi | 48.1 dBi | 48.1 dBi or 50 dBi | 48.1 dBi or 50 dBi | 44.8 dBi or 42.5 dBi | 24 dBi or 30 dBi |
| Polarisation | Circular | Circular | Any | Any | Circular | |