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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="s-band" data-source="post: 1064228" data-attributes="member: 407744"><p>[USER=175007]@Llew[/USER] Set the LOF in exactly the same format as in your 2nd picture and 1st pic attached (Es'hail 2) e.g 9.750.000.000 ( to 1Hz resolution). The Airspy uses the R820 front end as per most of the RTLs (I've never seen an E4000 version RTL). The second pic is using an AD-Pluto which goes to 6GHz (~£70 from Mouser)</p><p></p><p>[ATTACH]121475[/ATTACH][ATTACH]121476[/ATTACH]</p><p>The R820 upper frequency varies device-device. When they get hot the upper freq reduces. You can scrape an extra 50MHZ or so by cooling the chip. Many, especially later ones, give up at 1650MHz. To get the upper part of 10.7-11.7, use 10.6G LOF and tune below 950MHz.</p></blockquote><p></p>
[QUOTE="s-band, post: 1064228, member: 407744"] [USER=175007]@Llew[/USER] Set the LOF in exactly the same format as in your 2nd picture and 1st pic attached (Es'hail 2) e.g 9.750.000.000 ( to 1Hz resolution). The Airspy uses the R820 front end as per most of the RTLs (I've never seen an E4000 version RTL). The second pic is using an AD-Pluto which goes to 6GHz (~£70 from Mouser) [ATTACH]121475[/ATTACH][ATTACH]121476[/ATTACH] The R820 upper frequency varies device-device. When they get hot the upper freq reduces. You can scrape an extra 50MHZ or so by cooling the chip. Many, especially later ones, give up at 1650MHz. To get the upper part of 10.7-11.7, use 10.6G LOF and tune below 950MHz. [/QUOTE]
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Miscellaneous Sections
Tech Head - The Technology Section
SDR radio, Software Defined Radio
RTL-SDR (USB) in SDRSharp - defeating frequency limit?
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