Question
What is the approximate maximum range for signals using transequatorial propagation?
Answer Options
- A) 1,000 miles
- B) 2,500 miles
- C) 5,000 miles
- D) 7,500 miles
Correct Answer: C
Explanation
Transequatorial Propagation (TEP) is one of the most exciting and distance-stretching modes available on the higher HF and lower VHF bands (e.g., 6 meters). The geometry of the TEP path involves two long ionospheric hops from the F2-layer irregularities that straddle the geomagnetic equator.
Since the path effectively involves two long skips, the approximate maximum range for signals using transequatorial propagation is around 5,000 miles. This makes TEP a major pathway for long-haul contacts between stations in the tropics and those in mid-latitudes across different continents, often occurring without the usual multi-hop distortion found on the highest HF bands.
This topic was automatically created to facilitate community discussion about this exam question. Feel free to share study tips, memory tricks, or additional explanations!