VK3UM Libration Calculator. [LibCalc]
a first in this format.
- Predict the time of minimal Libration for you and a Dx Station.
- Calculations of Libration rates in degrees / minute.
- Libration signal width (spread) of your Home Station, the Dx Station, and the Dx
Station as observed by the Home Station.
- Calculations relative (selectable) to Amateur frequencies from 432 MHz to 122 GHz.
- Spatial off set calculations of the Home to the Home Dx Station and Dx Station to
Home Station.
- Common Elevation windows between Stations
- Doppler calculations for each Station.
- Calculations for any 24 hour UTC day with a variable hour based adjustable window
within that period. (for close data analysis).
- A Planning Calculator which provides selectable periods of days, months, years and
displayed on screen and as printable output option.
- path loss relative to perigee.
- utilization of the VK3UM Dx Station Data Base to allow the user to choose Home and
Dx Locations with the ability to add their own or other locations as desired.
- Graphical displays of all the above options printable in both Colour and Mono.
- provides real time display of the Moon or Sun position (selectable).
- a fully adjustable time (minute, hour, day, month, year) for specific date related
calculations. (window size may be stored)
In addition the software provides
- All Ephemeris Data pertaining to the calculations.
- Integrated Help
This software was inspired by Charlie Suckling (G3WDG) article in DUBUS 3/2010 and
with his help and suggestions has been the basis of this program. My thanks also
go to Barry VE4MA, Al W5LUA, Dave G4RGK and John VK5DJ who have assisted with the
beta testing and provided valuable suggestions for improvement.
The knowledge of when
minimum Libration will occur has not previously been readily available to most Amateurs.
For those using uW frequencies and applying narrow band techniques, this knowledge
will be of considerable assistance in choosing the best times for their operations.
