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In article .com,
Steve wrote: On Jun 2, 7:03 pm, "Ron Baker, Pluralitas!" wrote: "Ron Baker, Pluralitas!" wrote in m... "RF Caused By SDR-IQ" wrote in message ... There is a new Yahoo group http://groups.yahoo.com/group/RFICausedBySDRIQ/which may be of interest to those who own or may purchase an SDR-IQ. The purpose of the group is to exchange information about RFI caused by the SDR-IQ and how to reduce or eliminate the RFI. Is it interfering with itself or other devices. If it is interfering with itself it is perhaps not surprising. It is an interesting looking gadget but it is not a radio. It has no front end. It is open to the whole 500 Hz to 30 MHz all the time. I take that back. The SDR-14 is known to have that problem. The SDR-IQ block diagram shows some front end filters. If you have a strong AM broadcast station near by or a ham or CBer in the neighborhood their signal will override everything else. The SDR-IQ would make a good IF/back end. Better results would be obtained by connecting the SDR-IQ to the IF of another receiver. Or by putting an RF preselector in front of it. The TenTec RX-320D is about the same price but has a real radio front end. Unfortunately the TenTec has an RS232 rather than USB interface and the TenTec only has a 12 kHz bandwidth. -- rb- Hide quoted text - - Show quoted text - To me, the most striking thing about this little box is that it's actually USB powered. So, it wouldn't require an independent power supply or wall wart. That means you could run it off a battery powered laptop after you lost power in a storm or something. I guess that's kind of neat, but if it generates so much RFI that a new Yahoo group has appeared just to discuss that fact, I wouldn't let this thing anywhere near my house. The purpose in life for this unit appears to be as a spectrum analyzer not a radio receiver. I'm sure if you put it in a good metal box with ferrite chokes on the cables it would tame the RFI. -- Telamon Ventura, California |
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