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SDR USB receivers with KU/C Band and DVB-T ?
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<blockquote data-quote="Terryl" data-source="post: 1119383" data-attributes="member: 369937"><p>Using a splitter will drop your signals from the LNB to the SDR radio by one half, also the impedance miss match on the connector to coax will drop even more. (LNB and it's down lead coax are 75 ohms, coax adapters and SDR stuff are 50 ohms) </p><p></p><p>You will need one of these [code]https://www.jfwindustries.com/product-category/test-accessories/impedance-matching-transformers/[/code] inline before you connect any of the SDR/amplifier stuff.</p><p></p><p>I had signal problems until I re-did all my SDR receiver equipment to all 50 ohm, this was by using RG-214 coax, a true 50 ohm discone wide band antenna and as few connections as possible, the more adapters you use, the less signal you have.</p><p></p><p>One other bit of info, the SDR Nooelec radios get quite hot, I mounted all of mine on an aluminum heat sink, and also shielded it.</p></blockquote><p></p>
[QUOTE="Terryl, post: 1119383, member: 369937"] Using a splitter will drop your signals from the LNB to the SDR radio by one half, also the impedance miss match on the connector to coax will drop even more. (LNB and it's down lead coax are 75 ohms, coax adapters and SDR stuff are 50 ohms) You will need one of these [code]https://www.jfwindustries.com/product-category/test-accessories/impedance-matching-transformers/[/code] inline before you connect any of the SDR/amplifier stuff. I had signal problems until I re-did all my SDR receiver equipment to all 50 ohm, this was by using RG-214 coax, a true 50 ohm discone wide band antenna and as few connections as possible, the more adapters you use, the less signal you have. One other bit of info, the SDR Nooelec radios get quite hot, I mounted all of mine on an aluminum heat sink, and also shielded it. [/QUOTE]
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SDR USB receivers with KU/C Band and DVB-T ?
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