Parameters during image acquisition then store the changes by clicking ‘OK’. Under the 'Settings / General settings / Image properties / Enhancements' menu.Īny changes made here will become the defaults for all future satellite images. APTDecoder has built-in tools for modifying its default image parameters Lack the brightness and contrast that you desire.
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Every NOAA pass generates three files: a WAV fileĬontaining the satellite audio, a JPEG image in the standard NOAA format of two side-by-side images, and a text file whichĬontains full details of the pass (satellite name, times of AOS and LOS, station details and the 2-line element set).Īll these are saved in the current 'day' folder, every file with a convenient generic stem filename based on the dateĮven though you take the trouble to set the recording level carefully, you may well discover that your images still or whatever)ĪPTDecoder creates a new data folder each year, containing a subfolder for each monthĪnd a further subfolder, as required, for each day of the month.
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Instead, open Windows 10's ' Sound/Recording' panel, right-click the appropriate option (line-in, microphone, etc.), click Properties, select the levels tab, and adjust the volume slider there. Until the decoding NOAA image shows a good range of tones without 'burning out' the cloud detail.ĭo Not click 'Tools / Recording control' as this will attempt to engage a utility that is not present in Windows‑10 and cause the program to stall. Input channel that you connected to your receiver ('line-in' or 'microphone' as appropriate) and adjust its volume slider Until a satellite image is forming and click 'Tools / Recording control'. Level should prove satisfactory for APTDecoder and your images should show a full range of tones.
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If you already have other software such as WXsat or WXtoImg working satisfactorily on your PC, the recording Once the pass is complete the satellite audio, the decoded image and an information file are all saved Note the floating overlay which shows full details of the satellite pass this overlay does not appear on the saved Signal capture then commences, the image displaying inĪ NOAA image building up in the APTDecoder window Signal-the time when the satellite rises above your horizon). The legend at the top of the screen announces which satellite is approaching andĬontinually updates its azimuth and elevation, as well as stating the maximum elevation and AOS (Acquisition Of Note: If no satellite is checked, the program will not do anything! Open 'Satellite / Active APT satellites' and place a check mark against the names of those satellites from Make sure you are on-line then open 'Satellite / Keplerian elements' and click 'Download' to import Open 'Settings / Ground station' and type in your latitude, longitude, altitude and station name. So that satellite passes will be captured automatically. Open the 'Help / About' menu and click where it says 'Create a desktop shortcut'Ĭlick 'Settings / General settings' and in the General tab check 'Enable auto recording and processing' Here are just a few that you are recommended to modify before starting Version 2 is dated later, and while broadly similar, includes some more advanced features.ĭownload the 2005 GEO Quarterly Article from::ĪPTDecoder offers a host of user options. Version 1 is an early version which was the version used when compiling this tutorial. There are two versions of APT Decoder available.
Which make it a powerful rival to other established favourites in this field. Although still under continuous development, APTDecoder already offers a host of features
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Weather Satellite Images Using APTDecoder softwareĪPTDecoder is free software from Patrik Tast of Västervik in Finland, which allows you to capture NOAA APT audio, convert it into weather images, then subsequently process these to add colour, remove noise,Ĭreate a weblog and much more. APT Decoder SatSignal WxToImg WXSat Satellite FrequenciesĪ Guide to Decoding A.P.T.
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