Yes. That's right. If you are old enough, you learned the hydrogen line in school as 1420 megacycles. "Giga" was not in student's vocabulary then. This is what we call the "hyperfine structure" today.
-----Original Message----- From: Mark Iverson Jones: Did you have the right units on that RF frequency... 1420 Mhz is 1.420 Ghz, correct? -Mark
