> 2) Is the FPGA cruicial to the operation of the E100 (will it die with the > FPGA)? Or will a rotten FPGA image just spoil the sampling ability? > The latter. The processing is all on the Gumstix Overo board. The FPGA is used exclusively for DSP-related tasks.

We just had one usrp n210 die on us. We traced it down to a failing power supply (the usrp was a few years old). It couldn't supply the needed 3 amps any more. When we opened up the supply, we found an expanded capacitor.

Ulrich, Any possibility to get an English version of your "Über die Stabilität von Oszillatoren und Frequenznormalen" article?

All amplifiers amplify signal and noise, plus distort >everything in the process. (fundamental laws of the universe: 1) You >can't get something for nothing, 2) You can't break even, 3) >You'll die trying) Ideally, you want the amplifier at the >antenna and you want the amplification to match the cable loss and >no more.

-John ============= > After all, that transmission line is starting to be a significant > fraction of a wavelength at 60 Hz.

On 11/28/2011 7:32 PM, Alan Melia wrote: > I wouldnt even rely on that..... a coroner in the US recently proclaimed > that the cause of death was "spontaeous human combustion" (again) despite > all the TV programs debunking that old wives tale. > > Alan G3NYK > > > ----- Original Message ----- > From: "Poul-Henning Kamp" > To: "Discussion

The next issue might be that they only have them in die form. The issue after that probably is that you really want the version 3 (or 9) chips that actually work with all the modulation schemes. I’ve been down the road with a number of similar chips that took *many* rev’s before they really did what they were intended to do.

I am pretty good with all of those and have > experienced most of them. But then comes the point of the dirty bulb and it > doesn't have to be the blob.

It is not at all uncommon for them to fill up with dust, > overheat, and die. Popping them open every 10 years or so to clean them out is > well worth the effort. > > Bob > >> On Mar 5, 2017, at 8:54 PM, Scott Stobbe wrote: >> >> Recently the fan in my 53131 has been making a pretty awful sound, so its >> time to replace it.

They > may issue the on die reset once and then the supply collapses all the flops > lose their reset state, but the IC dosen't try to reset again. > > Fortunately, you can buy a bunch of LDOs which include a small discharge > FET to help this case as well as others. >