Yes, as stated in the original post 'Basic-RX with a minimum of 1 MHz'. The DC is cutoff by the balun on the basicRX making it unsuitable for IQ.
________________________ Eugene Grayver, Ph.D. Aerospace Corp., Principal Engineer Tel: 310.336.1274 ________________________ ________________________________ From: Brian Padalino <bpadal...@gmail.com> Sent: Tuesday, March 21, 2023 3:18 PM To: Eugene Grayver <eugene.gray...@aero.org> Cc: usrp-users <usrp-users@lists.ettus.com> Subject: Re: [USRP-users] Wideband IQ Daughterboard On Tue, Mar 21, 2023 at 6:12 PM Eugene Grayver <eugene.gray...@aero.org<mailto:eugene.gray...@aero.org>> wrote: Hello, I want to use an external IQ mixer with an external LO. My signal is 160 MHz wide, which fits nicely into the nominal complex 200 MHz Nyquist of the X310. Unfortunately the only daughterboards for direct access to the ADCs are LFRX which maxes out at 30 MHz, and the Basic-RX with a minimum of 1 MHZ. I am thinking of spinning a custom daughter board derived from LFRX with a wideband differential driver such as https://www.analog.com/media/en/technical-documentation/data-sheets/6406fc.pdf or alternatively just replacing the chip on an LFRX since these appear to be footprint compatible. Separately, I was looking at LFTX schematics and the part # for the amplifier is not specified. Can somebody at Ettus/NI save me some time and lookup that part #. Comments? Have you considered the BasicRX? https://www.ettus.com/all-products/basicrx/ https://files.ettus.com/schematics/basic_dbs/BasicRX.pdf Brian
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