KR6EN's blog

I'm not even sure if I can state my question clearly enough, but here goes.

By design, the WSPR protocol has FEC which allows for a decode even though some received bits are missing.

My question is: From a time perspective, what's the minimum window of reception in order to "completely" decode the data embedded in a WSPR transmission? Or is the better question, how many bits of data (stated as a percentage of the total number of bits encoded) are required for a successful decode? I'm not seeking precision in the answer, only a ballpark idea.

Since my last Blog entry, I've joined the ranks of FT-817nd owners. And while I am enjoying two QSOs (mainly digital modes) I am now also able to run some relative power tests (beyond the capability of the WSPRlite) on my indoor mounted magnetic loop antenna. I'm also finding it very convenient to report others who are on WSPR via the WSJT-X software. The capabilities of that software and JT modes continue to absolutely amaze me.

While there are things I like about each of the three software packages available, SDRuno, HDSDR, and Console V3, I find myself constantly going back to Console V3. SDRuno is very, very, complex and I don't feel handles the digital signal as well as Console. To be fair, I am in a very high QRN environment and it seems that the noise is "tricking" the threshold points and constantly making the overall gain reduction jump up and down.

The RSP 2 has arrived and it's up and running. Some unsolicited advice for others... if you are looking for a "plug and play" device - any SDR, not just this one, you should rethink your decision. With infinite flexibility comes infinite complexity.

Never mind that I'm also wrapping my mind around magnetic loop antennas for the first time :-)

Still waiting on my WSPR Lite - apparently customs has devoured it :-(

--Jim, KR6EN