M0DUO's blog

I finally gave in, and loaded Windows XP onto my EEE PC so I could use it with WSPR. I made many attempts to get the Linux binaries working, but ran into so many dependency issues and compiler errors that I simply could not spare any more time on this. I like Linux, but it truly is an OS that has yet to mature, particularly driver-wise, and is not worth my time away from the XYL and 4 children.

As I had hoped, the 200HZ filter on the K3 seems to offer better WSPR decodes. I seem to be copying the very weakest stations much better, and have had decodes at the -30 level since installing. Perhaps it's premature - it's only been in a few hours - but it certainly seems to be a lot sharper than my 400HZ filter dialed down to 200HZ, and that is a plus for WSPR. Hopefully, some QRPP signals will tell the tale over the next few days.



I recently installed the DX Engineering vertical, a 43 ft, rather shiny piece of Aluminum on the ground in the backyard. I have 24 buried radials from 20 to 60 feet long. I am receiving much better on WSPR, and am consistently getting excellent multiple reports with my preferred 500mW of power.

I have also ordered the 200 Hz 5-pole filter for the K3, and this will be my preferred WSPR filter set. I am hoping the very even rolloff of a standard WSPR BW filter will help me copy a lot more stations.



Wondering if anyone has played with WSPR in the ELF ranges? Seems like this would be a way to really accomplish the long awaited trans-atlantic QSO!

There have been a few threads on antennas, but I think it's important to provide more than that. An equipment baseline can give the amateur receiving the spot a lot more information about just how strong/good the propagation was, and how effective changes on their end are. There is certainly a difference in being received at low power over any distance by a person with a 100FT tower and tribander than the fellow with the 33' long wire.

At M0DUO I am using the following on WSPR:

This is an interesting bit of activity, and has really captured my interest. I have played with both PropnetPSK and with the "self-reporting" feature in the digital interface within Ham Radio Deluxe, but find this the most intriguing, particulary for low power propagation reports.

I am 47 years old, and currently living near Oxford, England, working for the U.S. Embassy here in London. My home call is K2PI. I have also held the calls ON9CPI, LZ/K2PI, XUF2B, XU2FB, HS0ZCI and KE2FB/DU3, among a few.