Anybody that has a Satwork 3618, tell if it picks up double frequencies on a blind scan. Example, I blind scan G10 and pick up 20 signals, the second 10 are exactly the same as the first 10. I have scanned other satellites and picked up only 2 signals and they will both be the same. To save time, I keep and eye on the first frequency to show and about half way through the scan when it pops up again, I exit. Is this normal?