![Erik Villard- the DMH at CMH on Twitter: "An American soldier uses a French radio set, Varennes-en-Argonne, France, 12 Oct 1918. Photo from NARA RG 111-SC Enhanced by erikthehistorian (erik villard) CMH # Erik Villard- the DMH at CMH on Twitter: "An American soldier uses a French radio set, Varennes-en-Argonne, France, 12 Oct 1918. Photo from NARA RG 111-SC Enhanced by erikthehistorian (erik villard) CMH #](https://pbs.twimg.com/media/DqZdfToVYAA_XUZ.jpg)
Erik Villard- the DMH at CMH on Twitter: "An American soldier uses a French radio set, Varennes-en-Argonne, France, 12 Oct 1918. Photo from NARA RG 111-SC Enhanced by erikthehistorian (erik villard) CMH #
![Telephones were used extensively in WW1 because radio sets were large, heavy, expensive, in short supply, affected by weather, and could only be used for telegraph codes instead of voice communication. As Telephones were used extensively in WW1 because radio sets were large, heavy, expensive, in short supply, affected by weather, and could only be used for telegraph codes instead of voice communication. As](https://c8.alamy.com/comp/G16BYM/telephones-were-used-extensively-in-ww1-because-radio-sets-were-large-G16BYM.jpg)
Telephones were used extensively in WW1 because radio sets were large, heavy, expensive, in short supply, affected by weather, and could only be used for telegraph codes instead of voice communication. As
![Guest post by Keith Thrower: Technical factors affecting CW radio communication in WW1, part 2 - Innovating in Combat Guest post by Keith Thrower: Technical factors affecting CW radio communication in WW1, part 2 - Innovating in Combat](http://blogs.mhs.ox.ac.uk/innovatingincombat/files/2014/06/Marconi-Short-distace-radio.jpg)