The same applies to most similar software. You can probably use a higher sampling rate for the sound card so long as it is a power of 2 multiple (2,4,8, etc) of the value in MMSSTV. The sound card adjustments will vary slightly depending on the version of the OS you are running, but usually will be under the advanced properties for the device. The MMSSTV default setting may need to be set to 24000 (exactly half of the sound card setting). Then the Clock section at the bottom of the page.On the AMSAT-BB Rick W2JAZ and Alan WA4SCA comment on the need to set the MMSSTV sound card setting to 48 kHz instead of the default 44.100 kHz If you just view as normal you will only see 320 x 248 resolution, which kind of defeats the object of using a high resolution mode.” Paul Turner G4IJE, co-developer of the SSTV PD modes, says regarding the MMSSTV PD180 mode: “Don’t forget to either enable “Always show RX viewer” or use the “Picture viewer” (magnifying glass icon) to show the picture at its real resolution of 640 x 496. ISS SSTV image 12/12 received by Martin Ehrenfried G8JNJ using the SUWS WebSDR Dec 18, 2014 MP3 test recording of a PD180 transmission by John Brier KG4AKV MP3 test recording of a PD120 transmission by John Brier KG4AKV Watch PD180 SSTV Test Recording by John Brier KG4AKV Read ISS SSTV Video and “ISS SSTV Reception Hints” by John Brier KG4AKV at Large 2m colinear antennas don’t work quite as well because their radiation pattern is concentrated at the horizon.Ĭheck the N2YO site to see when the ISS is in range Simple antennas such as an outdoor ¼ wave ground plane or dipole should give good results. Handhelds all seem to have a single wide filter fitted as standard.ĭuring most of a pass the ISS may be more than 15 degrees above the horizon so an antenna with a high radiation angle will give better results. For best results you should select the filter for wider deviation FM. Many FM rigs can be switched been wide and narrow deviation FM filters. In IARU Region 1 (British Isles, Europe, Africa) FM equipment is usually set by default to the narrower 2.5 kHz deviation. The FM transmission uses 5 kHz deviation which is standard in much of the world. The ISS puts out a strong signal on 145.800 MHz FM and a 2m handheld with a 1/4 wave antenna will be enough to receive it.
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#Download iss tracking program free#
On Windows PC’s the free application MMSSTV can be used to decode the signal, on Apple iOS devices you can use the SSTV app for compatible modes. You can even receive pictures by holding an iPhone next to the radio loudspeaker.
#Download iss tracking program Pc#
International Space Station – Image Credit NASAĪll you need to do to receive SSTV pictures direct from the space station is to connect the audio output of a scanner or amateur radio transceiver via a simple interface to the soundcard on a Windows PC or an Apple iOS device, and tune in to 145.800 MHz FM.