[hpsdr] NOISE FLOOR

[Bob Stricklin]

Take a look at these: https://www.sv1afn.com/j310preamp.html,  http://advancedreceiver.com/page5.html for 28 MHz and up.
Bob N5BRG

On Jan 17, 2019, at 8:33 PM, Scott Traurig <scott.traurig at gmail.com<mailto:scott.traurig at gmail.com>> wrote:

Bob,

Do you have a suggestion for an HF preamp with better NF performance?

73,

Scott/w-u-2-o


On Thu, Jan 17, 2019 at 9:12 PM Bob Stricklin <bstrick at n5brg.com<mailto:bstrick at n5brg.com>> wrote:

DC6NY’s comment about the first amp setting the NF is correct and the reason people add their own external preamp with better specs to improve performance. The NF of 6dB reported by W-U-2-O is high and can be improved adding a preamp which will become the first amp.

Bob N5BRG

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