![]() The checkbox beside the VFO indication applies the calculated frequencies (see Radio : below), to the selected VFO. If your radio does not support two VFOs, the same VFO will be used for both purposes. Radio VFO: - Select which VFO (A or B) to use for TX (uplink) and which to use for the RX (downlink) process. Uplink frequencies change in the opposite direction and progress upwards. Ordinarily, the downlink frequency of an approaching satellite starts higher than the published frequency and drops to below the published frequency as the satellite departs. The window provides automatic "fine tuning" of the entered "core" frequencies in order to accommodate the Doppler Effect. Doppler shift is calculated in accordance with Kepler’s laws. The window now has a copy of the satellite Plot window (single satellite in this case) and the Single Pass window as insets.ĭoppler Effect is the apparent shift in frequency of a radio wave due to the relative motion (changing distance) between source and observer. You can also choose which satellite to place in focus. The Ground Control window is used to adjust your radio’s uplink and downlink frequency. This is unconfirmed.įinally, there are buttons provided to choose satellite data files from either the Default or another directory. As there is a maximum of 100 satellites allowed, I would expect that the program would only select the first 100. ![]() If you change your mind, the << button will place them all back again. If you change your mind, the > button to place all of them in the chosen list to the right. To choose a couple of satellites, click on the name in the left window and then click on the > button to place it in the chosen list to the right. Satellite file details are available from the Celestrak web-site. Other satellite files can be added if you happen to know their filenames. ![]() Instructions are in the Notepad file and it just requires the removal of the # symbol to include these additional files in the download. The Edit List button provides a Windows Notepad view of the available satellite files and there may be others not displaying in the window that can be included. The Download Files section of the window displays the satellite files that will be downloaded. The Satellites tab is displaying some 236 satellites whose data has been previously downloaded via the Download button in the window.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |