With one CM 4228 aimed at 180 degrees south and 20 ft above ground, get 18 local channels. Channel 4.1, 5.1, 7.1 only come in at 25-43 out of 100 on my Sony. No signal lock. Will try going up 5 feet when weather better and try a preamp. Max Huey, still getting Seattle on your modified amplified super antenna? Anyone able to get Seattle or Tacoma in my area Foster and Robinson Coquitlam? What equipment and how high?