Norme technique B-1;courbes d'intensité de champ pour les liaisons de longueur supérieure à 4000 km, courbes dites de Mexico, pour la gamme de fréquences de 6 à 21 Mc/s. Technical standard B-1; field strength curves for circuits of more than 4000 km in length, known as Mexico City curves, for the frequency range 6 to 21 Mc/s.
Edition: 1. éd.
Publisher: Union internationale des télécommunications
Published: 1955
Place of publication: Genève
Language: fre
Subjects: Radio frequency -- Tables.; Radio -- Transmitters and transmission.
Other titles: Technical standard B-1; Field strength curves; Mexico City curves
Notes: French, English, and Spanish.
At head of title: I.F.R.B.
Issued in proftolios.