Facsimile transmission of weather charts and other material by landline and radio

A rapid expansion in the facsimile broadcasting of meteorological information has taken place throughout the world during the past few years. An outline of the present situation is given in the paper, which also discusses the technical requirements of the service and examines special problems relating to radio transmission. Descriptions of facsimile terminal apparatus developed for this service are given. Recorders feature the use of direct recording electrolytic paper and automatic operation. Reference is also made to facsimile equipments designed to handle other material including half-tone pictorial representations.