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Table 2

Upper and lower bounds on the SRB flux density. The upper bound is built from a cubic spline of maximum SRB observations. The lower bound is built from equation (2). The magnitudes of SRBs estimated to cause disruption for various instruments are listed alongside the instruments in the table.

Frequency Lower bound (sfu) Upper bound (sfu) Instrumentation Threshold (sfu)
245 MHz 1.15 × 101 5.00 × 105 HF and VHF ~102
410 MHz 3.22 × 102 5.00 × 105
610 MHz 7.12 × 102 5.00 × 105
1.03 GHz 2.03 × 103 1.42 × 105 GPS, TACAN and secondary surveillance radar ~103
1.06 GHz 2.15 × 103 1.42 × 105
1.23 GHz 2.88 × 103 1.42 × 105
1.42 GHz 3.83 × 103 1.14 × 105
1.58 GHz 4.77 × 103 6.49 × 104
2.70 GHz 1.39 × 104 6.48 × 104 Primary surveillance radar ~104

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