Topic Tag: Radio Astronomy Search for: › Forums › Topic Tag: Radio Astronomy Viewing topic 1 (of 1 total) Topic Voices Posts Last Post Sam Jewell G4ddk VLNA for 1420 MHz Hydrogen Line Supply Voltage & Current Started by: Sharon in: Radio Astronomy 2 2 1 year, 6 months ago Roy Hughes Viewing topic 1 (of 1 total)