Given that there are ZERO standards for how SDRs "do USB", it's not clear how this would work in practice. Someone would still have to write a driver that interfaces between the radio and this "generi

I dunno. I tried the noise-blanker on a Hip-Hop station, and it still sounding like Hip-Hop, rather than classic 1970s-era folk-rock to me. I think it's broken :) :)

One can of course get definitive in-situ answers using devices like: https://www.amazon.ca/Display-Voltage-Current-Capacity-Measure/dp/B07B7MK6K2/ref=sr_1_9?dchild=1&gclid=Cj0KCQiAvbiBBhD-ARIsAGM48byK

So even though IARU TR1 defines the S-unit scale, almost no receivers actually comply in any meaningful way. https://en.m.wikipedia.org/wiki/S_meter

There has historically been a problem in that PHY+MAC ethernet chips were designed for PCIe, so if you wanted ethernet in your embedded application, it was costly. That is now changing somewhat with 1

Talking somewhat through my hat here, having never actually designed a PLL chip. My understanding is that loop bandwidth allows you to trade-off a number of parameters, including residual phase-noise

USB is of the devil. It's what happens when data channels are designed by people without adult supervision. It's a shame that 1Gbit-and-faster ethernet is so expensive and cumbersome to integrate into

That whole "if you know the total gain" is rather rare--particularly if your application is wildly device agnostic. Even if it isn't, then the accumulated uncertainty from batch variability and temper

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That hadn't occurred to me. Makes perfect sense now.

I have an older (ca 1955) 220Mhz - 400Mhz tuneable cavity that that came out of military aircraft. HN connectors on it. I cannot imagine that they were running the implied power levels inside an aircr

In my mind, SMA connectors aren't for the "outside world" at all. They should live inside enclosures to effect RF connectivity inside an enclosure. Once you have to visit the "outside world", then som

I have an Rb in the lab here--bought it surplus. Works OK but I had to build a buffer/clean-up circuit for it -- Rb clocks "naked" tend to have some spurs from the PLL circuitry.

Yes I know that. That's what makes it funny, right? Right? Is this mic on? Hello?

Means some C-band earth stations may be going for cheap...

Tape an old 4-banger calculator to the antenna. Can you hear all kinds of whirrs and pops and glompings at any frequency that should be in the AM band? The poor mans signal generator :)

The only constant things in life are: death, taxes, and software updates

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Hey complex signals have negative frequencies.... :) :) :)

I ran into a vaguely-similar issue recently with USRPs. If you're using a very-high-quality external clock, the frequency resolution of the "mop up" operation done in the FPGA may not be commensurate

It very much depends on what one is doing. Some observing modes are "spectral". Some could usefully use as much bandwidth as you can throw at them, since sensitivity is proportional (all else being eq

Direct sampling at between 400MHz and 1.4GHz isn't exactly cheap...