Download E-F-Layer frequency and height apk 4.0 free for Android smartphone

29 Dec
E-F-Layer frequency and height

Posted by in Communication | Dec. 29, 2012 | 2 Comments

Apk file size: 588.0 KB

This App will show the behavior of the E and F reflection layer on world wide short wave propagation between 1MHz and 30MHz. The World-map is computed and displayed at a resolution of 1 degree for the selected map type, month and solar activity.
To compute the 24 maps of the day a Galaxy SII will need about 5 seconds, Touch the black area after the message vanishes to see the map. At each touch in the right area the day time (UTC) is increased, in the left screen area UTC is decreased. Longitude, Latitude and the computed value at this location is displayed also.
Gray-line (dawn zone) and the position of the sun is adjusted for each hour.

The map type are:
f0F2 maximum vertical F-Layer frequency (MHz)
Height of Gyro at HmaxF2 Shimazakis formula (Km)
Height of F-Layer bottom HoF2 (Km)
f0E maximum vertical E-Layer frequency (MHz)
upper deciles of sporadic E frequency (MHz)
Median of sporadic E frequency (MHz)
lower deciles of sporadic E frequency (MHz)

for all months and sun spot number 10, 30, 50, 90, 120 and 150

This map sets are intermediate results from the development of a HF prediction App coming soon, stay tuned.

The first version of the HF prediction app is here now:
MyHF_Map will compute MUF, FOT and HPF coverage maps for the entered location and sun spot number in minutes !
It's available now, more features will follow.

Whats new

    Version 1.1 (August 7. 2012):
    - small layout corrections
    - Progress bar at computation time
    Version 3.0 (December 4. 2012):
    - new layout, map at full screen for each device
    Version 4.0 (December 29. 2012):
    - Fix for color legend at high resolution client part of our Communication and have average installs from 5000 to 10000. Last Update Dec. 29, 2012. Google play rating is 86.6667. Current verison is 4.0. Actual size 588.0 KB.

Download e-f-layer-frequency-and-height.apk 588.0 KB


Robert Ehresman

Needs "here" and "now" default capabilities Smart phones have APIs for gps, clock, and web. Get the location, day, time, and Solar Flux value automatically. And make those parameters the defaults. That will get you 5 stars and purchase of your premium app.

Javas Fun

Works. Helps to know vertical muf for picking the good sw bands to dx. Good for swlers as well as hams.

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