HDSDR can be programmed in frequency and time for multiple unattended operations. It can save the data as full RF signal, IF or AF demodulated audio.
Ed Krome K9EK Sent from my iPhone
On Jul 13, 2017, at 10:18 AM, John Brier johnbrier@gmail.com wrote:
Hey Kevino,
99 percent of the time I am receiving with my Arrow antenna outside. One time there was a telebridge in the middle of the night and I parked my car on the top of a parking deck that had a good view of the pass (at the time my girlfriend's deck) and left my Zoom H1 audio recorder going. The quality was surprisingly good, even they were using the 5 watt radio, not the more powerful Kenwood. I can't remember if I left it in WAV or mp3, but it worked. I had a huge file of course.
If you have a PC it should be able to handle multiple gigabytes even in WAV.
If I'm reading this site the standard WAV settings will get you a file around 2.5 GB for eight hours:
http://www.audiomountain.com/tech/audio-file-size.html
Of course there are ways to automate/script recording at a specific time. I know of at least one SDR program that can do it for sure (saw a screenshot of it, can't remember which one)
73, John Brier KG4AKV
On Thu, Jul 13, 2017 at 6:35 AM, kevino z z_kevino@hotmail.com wrote: John, Do you do unattended recording by scheduling an app to record the pass? Or do you leave it recording for the whole time and then edit a humongous audio file? I have to work Thursday and was hoping to record in an unattended mode, and then come home and see what I got. The audio will be mono, so I assume recording at 44kHz mono, uncompressed is how you do it? What app do you use? Thanks, -Kevin (KK4YEL)
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On Jul 12, 2017, at 09:14, John Brier johnbrier@gmail.com wrote:
I highly recommend recording the audio.
That way if you have issues decoding during TX you can always replay to the decoder later. Also you can try different decoders and settings to see which produces the best image.
I have more tips and info on this page on my website:
https://spacecomms.wordpress.com/iss-sstv-reception-hints/
73, John Brier KG4AKV
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