Table 1
Results of the EPFD simulations.
| Satellite System | #Sats | Avg. alt. (km) | Max. E-field (dB[µ V m-1]) | |
|---|---|---|---|---|
| d = 25 m | d = 70 m | |||
| Spire | 118 | 500 |  |
 |
| Iridium NEXT | 66 | 780 |  |
 |
| OneWeb | 720 | 1200 |  |
 |
| SpaceX/Starlink | 4408 | 560 |  |
 |
| SpaceX/Swarm | 150 | 500 |  |
 |
Notes. To avoid exceeding the RAS threshold levels in the band 150.05– 153 MHz, the electric field values produced by satellites (measured with a 120 kHz detector at 10 m distance) should be lower than the stated E-fields. This assumes that the UEMR has broad-band type, or more precisely that the signal is constant over the full RAS band, 150.05– 153 MHz. With a measurement bandwidth of 2.95 MHz the electric field limits are (2950/120) = 13.9 dB higher.
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