Question: 4 ( a ) Two spacecrafts are separated by 3 0 0 0 km . Each has an antenna with D = 2 0 0

4(a) Two spacecrafts are separated by 3000 km . Each has an antenna with D =200 operating at 2 GHz . If craft A's receiver requires 20 dB over 1 pW ,
4 ( a ) Two spacecrafts are separated by 3 0 0 0

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