> NaP3 seems to work well but the display shows vertical lines every > 1-2 KHz. I've seen NaP3 references many times, but I'm completely in the dark about what it means. Could somebody clue me in, please? Sodium Phosphide would be Na3P (If it exists)... 73, George T Daughters, K6GT CU in the California QSO Party (CQP) October 6-7, 2012