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Tech Head - The Technology Section
SDR radio, Software Defined Radio
RTL-SDR (USB) in SDRSharp - defeating frequency limit?
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<blockquote data-quote="FC GD" data-source="post: 1064203" data-attributes="member: 405329"><p>i believe the second one is using down-converter and using "shift" just to tune in to right freq. if you want to tune a freq without a down-converter, you can do like i do, use a SDRPlay or Adalm-Pluto that have broader freq tuning range.</p><p></p><p>if i recall right, a rtl-sdr based R820T2 can tune up to 1700+ LNB Local Oscillator</p><p></p><p>Updated:</p><p></p><p>i found this a couple of years ago and it helped me a lot</p><p></p><p><a href="https://goughlui.com/2013/11/10/rtl-sdr-a-tool-for-visualizing-broadcast-satellite-signals/" target="_blank">RTL-SDR: A tool for Visualizing Broadcast Satellite Signals</a></p><p></p><p></p><p> L-band LNB IF Table (950-2150MHz)</p><p> Ku Band</p><p>SAT.f LNB Local Oscillator</p><p> 9750 10600 10700 11300</p><p>10700 950 - - -</p><p>11700 1950 1100 1000 -</p><p>12250 - 1650 1550 950</p><p>12750 - 2150 2050 1450</p><p></p><p> L-band LNB IF Table (950-2150MHz)</p><p> C Band</p><p>SAT.f LNB Local Oscillator</p><p> 5150 5750</p><p>3400 1750 -</p><p>3700 1450 2050</p><p>4200 950 1550</p></blockquote><p></p>
[QUOTE="FC GD, post: 1064203, member: 405329"] i believe the second one is using down-converter and using "shift" just to tune in to right freq. if you want to tune a freq without a down-converter, you can do like i do, use a SDRPlay or Adalm-Pluto that have broader freq tuning range. if i recall right, a rtl-sdr based R820T2 can tune up to 1700+ LNB Local Oscillator Updated: i found this a couple of years ago and it helped me a lot [URL='https://goughlui.com/2013/11/10/rtl-sdr-a-tool-for-visualizing-broadcast-satellite-signals/']RTL-SDR: A tool for Visualizing Broadcast Satellite Signals[/URL] L-band LNB IF Table (950-2150MHz) Ku Band SAT.f LNB Local Oscillator 9750 10600 10700 11300 10700 950 - - - 11700 1950 1100 1000 - 12250 - 1650 1550 950 12750 - 2150 2050 1450 L-band LNB IF Table (950-2150MHz) C Band SAT.f LNB Local Oscillator 5150 5750 3400 1750 - 3700 1450 2050 4200 950 1550 [/QUOTE]
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Tech Head - The Technology Section
SDR radio, Software Defined Radio
RTL-SDR (USB) in SDRSharp - defeating frequency limit?
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