Transmission characteristics of a short-wave telephone circuit

[1] A suggestion of a connection between radio fading and small fluctuations in the earth's magnetic field [J]. PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1927, 15 (08): : 709 - 723

[2] FRIIS HT, J I E E, V66, P881

[3] Experiments and observations concerning the ionized regions of the atmosphere [J]. PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1928, 16 (01): : 75 - 99

[4] Propagation of electric waves over the earth [J]. BELL SYSTEM TECHNICAL JOURNAL, 1925, 4 : 215 - 234

[5] PEDERSEN PO, PROPAGATION RADIO WA, P95

[1] A suggestion of a connection between radio fading and small fluctuations in the earth's magnetic field [J]. PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1927, 15 (08): : 709 - 723

[2] FRIIS HT, J I E E, V66, P881

[3] Experiments and observations concerning the ionized regions of the atmosphere [J]. PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1928, 16 (01): : 75 - 99

[4] Propagation of electric waves over the earth [J]. BELL SYSTEM TECHNICAL JOURNAL, 1925, 4 : 215 - 234

[5] PEDERSEN PO, PROPAGATION RADIO WA, P95