3 ms·
Morse code lives on in the form of Station Identification [1]. By law, radio stations are required to periodically transmit identifying information. The annou
by femto 3y ago
Morse code lives on in the form of Station Identification [1]. By law, radio stations are required to periodically transmit identifying information. The announcer on a commercial radio station will typically say it, but there are lots of Land Mobile Radio stations out there that don't have a person in the loop.
For an unattended station, by far the cheapest and easiest thing to do is program the base station to periodically transmit the station ID as a burst of Morse code. It's not that many years since I wrote code to transmit Morse, that code being embedded in radio base stations that are still being sold.
[1] https://en.wikipedia.org/wiki/Station_identification#Identification_on_other_types_of_signals https://en.wikipedia.org/wiki/Station_identification#Identif...
- lsh123 3y agoSame is true for aviation nav aids: VOR, ILS, … stations transmit their name in Morse code for identification.
- larrysalibra 3y agoSame is true for maritime racon navigation marks which transmit a morse code letter as identification in response to the reception of a radar pulse...the morse code is then visible on the radar display. We had to learn morse code for Hong Kong's "grade 1 pleasure vessel certificate of competency" -> a credential required to operate pleasure vessels greater than 15 meters in length. It's pretty easy to pick up and there are a few phone mobile phone apps that make learning morse code fun.