My grandmother's brother was a wireless operator on submarine chasers during WWI. Looking for naval records and information, I came across Volume 27 of the Sessional Papers of the Dominion of Canada, 1916. Tucked in there is a list of Licensed Amateur Radio Stations in Canada for the year 1915.
That made me think of the winter of 2006 when my husband decided he wanted to get his Ham Radio License. At that time you still had to know Morse Code. He bought Morse Code CD's and practiced. A lot! With no headphones!
There is no morse code in the requirements now to get a basic certificate. He took a class with a group of people and some he is still friends with. Besides how to use the equipment you learn Operating Tips and net etiquette. Then you learn a whole new lingo and abbreviations, called Hamspeak - when is a rubber duck not a rubber duck and when is wallpaper not wallpaper?? He studied hard and got his Certificate in April 2006.
Once you pass the exams you pick your Call Sign from those available on a list. This is your radio identity. Here the available call signs for BC were VA7 and he picked GAN, his initials.
There are repeaters (send, receive, relay signals) all up and down the Island and my husband went by quad with his friend many times to check and repair the equipment on the mountain tops.
Did your ancestor operate a ham radio?
Licensed Operators 1915 - Sessional Papers
Canadian Amateur Certification
Search for Amateur Radio Operators and their Call Sign, Canada
FCC License search - USA
Amateur Radio Stations of the United States 1920-1923
Supplement No. 2 to the list of Radio Stations of the United States 1913
Radio Amateur Call Book Magazine 1933
Getting an Amateur License in the UK
Wireless World - publication of Radio Society of Great Britain 1922-1923
The Emmco Radio Handbook - amateur stations in Australia and New Zealand c1920's