UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Loran ? radio mod and 27Mhz walkie talkies

dsergeant · 12th Feb 2019, 6:55 pm

Jingle Bells is HiFix markers and have a musical note. Loran is totally different - you can still hear the 100kHz transmissions - rather like ignition noise but varying as the different chains interact with each other. Jingle Bells was around 1900kHz, Loran in Europe around 1975kHz with a USA chain sometimes heard around 1850kHz. I recall vividly when Loran closed down (1980?), bang on midnight that New Year's eve each transmitter switched off in sequence to leave a nice quiet band. Sadly no recording of the event.

Dave

12th Feb 2019, 6:55 pm	#5
dsergeant Octode Join Date: Mar 2006 Location: Bracknell, Berkshire,UK. Posts: 1,172	Re: Loran ? radio mod and 27Mhz walkie talkies Jingle Bells is HiFix markers and have a musical note. Loran is totally different - you can still hear the 100kHz transmissions - rather like ignition noise but varying as the different chains interact with each other. Jingle Bells was around 1900kHz, Loran in Europe around 1975kHz with a USA chain sometimes heard around 1850kHz. I recall vividly when Loran closed down (1980?), bang on midnight that New Year's eve each transmitter switched off in sequence to leave a nice quiet band. Sadly no recording of the event. Dave