Some sample continuous chart recordings of Radiofax short wave services on 3,910, 6,205 and 12,255kHz.
Field strength calibrations not shown. Reception between 29 November and 16 December 1991.
The 3,910 service was on test 24 hours a day at the start of its chart, before becoming night only.
On 6,205, HCJB, Equador, can be seen for two hours each morning followed by Radiofax fading in shortly afterwards.
www.radiofax.org is validated to the standards and accessible for text to speech readers and other aids