As I process the eqsl confirmations that come in after the Russian Worldwide PSK contest 2017 I start to notice some callsigns are showing up regularly in (digimode) contests. My highest number of confirmed contacts via eqsl which are related to contesting come from YO9AGN, S58X, S51AF, RA3GZ, HG3FMZ, EA3HKa, 9A4FS. But the number one callsign I have confirmed via eqsl is not a contest station but the Veron club station PI4AA where I try to call in to the net almost every month.
Today is very windy in the Netherlands, with storm with wind gusts of up to 65 km/h and average windspeed of 36 km/h. But the readings shown by the weather station readings shared in the neighbourhood show quite different values:2017-02-23 21:49:14 : HIDEKI Wind sensor Rolling Code: 15 Channel: 4 Battery: OK Temperature: 4.9 C Wind Strength: 15.29 km/h Direction: 337.5 °So I don't think those will help a lot for my Weather station Utrecht Overvecht.
This weekend I had time to use the radio and after trying to get some more contacts on the 30 meter band Friday evening I decided to participate in the ongoing digimode contest in the weekend. This was the weekend of the Russian Worldwide PSK contest 2017 (https TLS certificate is broken at the moment). I had fun doing it, had 124 contacts in the contest. I now have two new countries in the log: Kuwait and Suriname. And Kuwait already confirmed via Logbook of The World. I just uploaded the log (with the last contact rejected as it was too late):Band QSOs Dupes Points Mults 160 0 0 0 0 80 0 0 0 0 40 52 0 320 28 20 71 0 223 33 15 0 0 0 0 10 0 0 0 0 ====================================== Total 123 0 543 61 Claimed score is 33123 pointsComparing it to my results in the Russian WW PSK contest 2015 I did a lot better. At that time I still had limited access to the 40 meter band which limited my options for PSK traffic.
Today I threw out the longwire antenna and tuned it for the 30 meter amateur band (10.100 - 10.150 MHz). I first tried the PSK part of the band but that was completely silent. I tried the JT65/JT9 part, and that part was buzzing. And beeping, and other sounds. I made several contacts in Europe in the morning which was as expected. But in the evening the computer/radio was still running and I noticed some US callsigns, and answered one, and had a JT9 contact with K8SIA. After that it was time to get the longwire antenna back in the house again. All in all another good experience with the 30 meter band.
I noticed recently the number of radio contacts made by my new callsign PE4KH which I started using in March 2016 was getting close to the number of radio contacts made by my previous callsign PD4KH between March 2013 and March 2016. A typical rise in contacts, mostly due to my skills improving and participating in contests. So I wanted to view the rise per month and did some searching how to ask the cqrlog databases and plot the results. Oh, and now PE4KH has more contacts after a few new contacts logged in PSK31 mode on the 20 meter band today.Read the rest of Rising number of amateur radio contacts
I still try to make radio contacts to far away places even with current radio propagation at low levels. At the moment the last hours of the afternoon before sunset seem to give options towards the west (USA and Canada). Last week I got home early one day, fired up the radio for PSK31 on 20 meters and saw K2EQ again. This Sunday I saw in the fldigi screen:
Vermont Counties map, from Vermont county map - WikimediaCQ Vermont QSO Party K1VMT K1VMTand answered with my call without having any idea what the Vermont QSO party is about, but having Vermont in the log would mean a new US state. The exchange was made and I dug up from the noise that the answer included LAMoille which is a county in Vermont. It all made a lot more sense when I viewed the Vermont QSO party website. I kept an eye open for CQ's from other Vermont stations but never saw any. So I entered my log with one entry for the Vermont QSO party.
The c't magazine this month had a few tips on linux powersaving. I tried them on the homeserver and saw indeed a very slight reduction in power use as logged by the UPS. For powersaving in sound card(s):# echo 1 > /sys/module/snd_hda_intel/parameters/power_saveThis can cause plopping sounds on some sound cards. For powersaving in disk communication:# cd /sys/class/scsi_host/ # for i in host*/link_power_management_policy; do echo min_power > "$i"; done
A posting about reading 433.920 MHz signals triggered the idea I had ages ago to decode those signals and see what weather stations are available nearby. The original posting 433,92Mhz ontvangen (Dutch) was about receiving remote controls (KlikAanKlikUit) and had a screenshot of some Linux software for receiving those signals but no name of the software (that would be useful information). But a simple google search found me rtl_433 on github which receives and decodes all kinds of signals on 433.922 MHz. I downloaded it on the raspberry pi for radio experiments, and it is working fine receiving weather information from probably nearby weather stations. At least one outside temperature and humidity sensor, one inside temperature and humidity and one wind and temperature sensor. This last one could be nice for my weather station!2017-01-27 21:00:27 : HIDEKI Wind sensor Rolling Code: 15 Channel: 4 Battery: OK Temperature: 3.6 C Wind Strength: 5.31 km/h Direction: 67.5 °and a rain sensor:2017-01-27 21:01:05 : HIDEKI Rain sensor Rolling Code: 0 Channel: 4 Battery: OK Rain: 648.2 mmThanks for sharing, neighbours!