Oblique ionograms derived from the current vertical incidence ionogram measured by the Digisonde at Roquetes (40.8 N, 0.5 E) on 2018-09-21 at 10:35 UTC.
The actual Operational MUF for the x mode wave for each radio path is indicated.
Es traces are not plotted for frequencies higher than 40 MHz. The highest Es MUFx values for 1 hop and 2 hop links for any of the 10 radio paths are shown in a table.
Note that all ionograms only apply to radio paths where Roquetes is at the midpoint of the path.
For further information see the info page.
|Summary of Operational MUFx values for various radio path lengths:|
|Path length (km)||100||200||400||600||800||1000||1500||2000||2500||3000|
|F2 MUFx (MHz)||7.1||7.4||8.3||9.4||10.5||11.6||14.5||17.9||21.8||26.5|
|Maximum Es MUFx values:|
|1 hop||2 hop|
|Es MUFx (MHz)||14.2||13.3|