If the SWR on an antenna feed line is 5:1, and a matching network at the transmitter end of the feed line is adjusted to present a 1:1 SWR to the transmitter, what is the resulting SWR on the feed line?
1:1
5:1✓الإجابة الصحيحة
Between 1:1 and 5:1 depending on the characteristic impedance of the line
Between 1:1 and 5:1 depending on the reflected power at the transmitter
الشرح
The mismatch that causes the reflection is at the antenna end, and a matching network at the transmitter end does not change it. The network changes only what the transmitter sees; the line between it and the antenna still carries a 5:1 standing wave.