using_sdr
Differences
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| using_sdr [2025/04/27 19:55] – removed the footnotes for USB/LSB because they have the tooltip when you hover over it anyway m7tox | using_sdr [2025/04/27 19:56] (current) – removed the footnote for ssb because i missed it on the previous edit m7tox | ||
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| * Move up the band a little to between 7030 and 7060. You will probably see some signals here, they might be quite wide, or they might be thin. Switch to LSB and tune to it. The LSB bit doesn' | * Move up the band a little to between 7030 and 7060. You will probably see some signals here, they might be quite wide, or they might be thin. Switch to LSB and tune to it. The LSB bit doesn' | ||
| {{data.png}} | {{data.png}} | ||
| - | * The rest of the band from 7060-7200 kHz is for SSB((Single Side Band, (LSB/USB) )) and is where you'll hear people talking. Have a scan around and look for vaguely rectangular columns. Use LSB because the frequency is below 10MHz and that's the accepted convention. You'll notice the signals are about the same width as the yellow bandpass bit. Try and tune to them, and adjust with the buttons rather than dragging for best results. You will find that using SSB modes you have to be a little more precise to stop the voices sounding distorted. | + | * The rest of the band from 7060-7200 kHz is for SSB and is where you'll hear people talking. Have a scan around and look for vaguely rectangular columns. Use LSB because the frequency is below 10MHz and that's the accepted convention. You'll notice the signals are about the same width as the yellow bandpass bit. Try and tune to them, and adjust with the buttons rather than dragging for best results. You will find that using SSB modes you have to be a little more precise to stop the voices sounding distorted. |
| * Here is a signal I found, The horizontal lines are interferance and aren't significant for what we're doing. The yellow bandpass set to Lower side band mode and placed over the signal in a way that the audio is readable. Note the vertical bar on the right is placed just on the side of the signal, whilst the horizontal line is approximately the width of the signal. | * Here is a signal I found, The horizontal lines are interferance and aren't significant for what we're doing. The yellow bandpass set to Lower side band mode and placed over the signal in a way that the audio is readable. Note the vertical bar on the right is placed just on the side of the signal, whilst the horizontal line is approximately the width of the signal. | ||
| {{lsb.png}} | {{lsb.png}} | ||
using_sdr.txt · Last modified: 2025/04/27 19:56 by m7tox