This weekend I had a few hours to play radio and I participated in the Russian worldwide multimode contest 2016. I also participated in the Russian worldwide multimode contest in 2015 so there is a chance now to compare the results. Saturday afternoon and evening I was active on 40 meter. Mostly in PSK63, only a few contacts in RTTY. PSK63 decodes better at the same signal to noise level so it's easier in search and pounce mode. Again having more access to the 40 meter band is good in this case, I made a lot of contacts in the 7.040 MHz part. Sunday morning I was active on 20 meter until I had a nice number of contacts in the log and it was time to go out and enjoy the weather. I had a few nice runs where I called CQ and got several answers after another. I have some ideas about analyzing the cabrillo logs for qso rates.Band QSOs Dupes Points Mults 160 0 0 0 0 80 0 0 0 0 40 63 1 380 37 20 16 0 50 15 15 0 0 0 0 10 0 0 0 0 ====================================== Total 79 1 430 52 Claimed score is 22360 pointsOne QSO was noted as incorrect because I was returned a Russian 'oblast code' for a Ukranian callsign. I guess some politics are involved there, I'm not very good (yet) at recognizing which callsigns are from which country.
It is a while after my last report on Vectored VDSL and the influence of amateur radio transmissions and it's time to share the current experiences especially with the change to the DrayTek Vigor 130 VDSL modem. The first conclusion is that the modem doesn't matter much. I am now used to the connection dropping and retraining when I start on a 'new' frequency. I haven't figured out yet what the exact definition of 'new' is, when I haven't been active for a number of days on 20M PSK31 the first transmission on that band can trigger the disconnect. There seems to be no direct influence on the maximum speed after the reconnect, it sometimes goes up. A serious change of frequency (different band or a different part of a band) can trigger another disconnect. In the mean time an xs4all user shared after long debugging of vectored VDSL problems to have found the cause in the PLC (powerline communications) network devices as delivered by xs4all for television over IP. Yet another reason to not use PLC. But in the ideal world the lastmile connections for high speed would be fiber-based anyway.
This does not work as planned in mutt:Subject: hi prnt Content-Type: multipart/mixed; boundary=31BE31246BD934D65C63831D7238 --31BE31246BD934D65C63831D7238 Content-Type: multipart/alternative; boundary=31BE31246BD934D65C63831D7238 --31BE31246BD934D65C63831D7238 Content-Type: text/plain; charset=UTF-8 --31BE31246BD934D65C63831D7238 Content-Type: text/html; charset=UTF-8 <div dir="ltr"><br></div> --31BE31246BD934D65C63831D7238-- --31BE31246BD934D65C63831D7238 Content-Type: application/zip; name="816847_304695.zip" Content-Disposition: attachment; filename="816847_304695.zip" Content-Transfer-Encoding: base64 X-Attachment-Id: f_519392564 UEsDBBQAAgAIAPVmnUiLxtYfTRIAAA0pAAAUAAAANzM1NzE1NjJfODYzNjA4MTYuanO1Wmt3 2zaT/tye0/+A8rSvxViW7eRt0tp1u4osx67vlyTOOt4ekIQkRCRA8yJZNv3f9xmApKjY6abdShows asI 1
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I consider it testing at the moment, but you can visit https://idefix.net/. The mixed-content warning will not go away soon since I partly depend on images and audiofiles from sources not (yet) available via https.
A while ago I already pondered preparing links in my websites for https. With Let's Encrypt I can get free domain validating certificates for TLS encrypting my traffic. Even the subjectAltName extension is supported to get multiple domain names on one certificate. But it took me a while to really get around to implementing the rest and testing the results. The standard way of using letsencrypt is a bit too much 'for dummies' to my taste. The suggested and supported method for using Let's Encrypt uses the standard Let's Encrypt client which is very good at modifying apache configurations on it's own. I would like free certificates, but not at the price of letting that script do things to my webserver configuration. So I asked around and someone pointed me at letsencrypt-nosudo with the brilliant introduction:Read the rest of First tries with letsencrypt certificatesI love the Let's Encrypt devs dearly, but there's no way I'm going to trust their script to run on my server as root, be able to edit my server configs, and have access to my private keys. I'd just like the free ssl certificate, please.Exactly my thoughts. So I used that script, got my brain around what was happening and now I have a TLS certificate for a number of my private domains.
: For those looking down a bit too much...
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De link wijst naar iets anders wat weer redirect naar een downloadlink bij dropbox. En uiteindelijk komt er een zip file met:
- Er staat een 7-cijferig nummer in wat onzichtbaar gemaakt wordt met <font size="1" color="white">, dit nummer komt een aantal keren terug.
- Het rekeningnummer is ongeldig en lijkt absoluut niet op het rekeningnummer van Intrum Justitia Nederland
- Het telefoonnummer is niet van Intrum Justitia en wordt vaker gebruikt in valse e-mailsArchive: Factuur 00891884-937473.zip Factuur 00891884-937473.pdff inflating: Factuur 00891884-937473.pdf.exeMeer informatie van Intrum Justitia zelf via Valse e-mails misbruiken naam Intrum Justitia.
: I had a number of QSL cards to write for my old callsign so I printed a 'cheat sheet' with all the details from CQRLOG. And this made it quite clear for me that with a bit of work I can print labels for my QSL cards and save a lot of writing.
I like the approach CQRLOG takes: it exports the QSL data in csv format and leaves label creation to gLabels which is much better at it.
Geen DX deze keer maar gewoon nieuwe services bij MTVNL en wat verschuivingen. Volgens Efteling Kids Radio terug via DAB+ in Amsterdam - radio.nl zal MTVNL op den duur de optie om aparte versies per regio meer gaan inzetten. Volgens radio-tv-nederland.nl is het al zo dat de versie in Eindhoven alleen Radio JND als DAB+ service heeft (terwijl die er hier in Utrecht dus ook bij zit).Read the rest of DAB services scan 24 april 2016
Q codes in radio which date back to radio telegraphy on ships. QSL as an answer means I am acknowledging receipt. I have my own QSL card for my old callsign PD4KH and I will need a new batch for PE4KH some day. To save on the costs of sending those cards there are QSL bureaus in the world. I submit my cards to the Dutch QSL Bureau via my radio club and eventually cards for me end up at my radio club. I have sent out numbers of QSL cards and received numbers of QSL cards.Read the rest of Improving my QSL workflow with cqrlog
2016-04-23 03:28:14,406 fail2ban.actions: WARNING [ssh] Ban 184.108.40.206 2016-04-23 05:27:04,412 fail2ban.actions: WARNING [ssh] Ban 220.127.116.11 2016-04-23 07:38:12,542 fail2ban.actions: WARNING [ssh] Ban 18.104.22.168 2016-04-23 07:42:12,342 fail2ban.actions: WARNING [ssh] Ban 22.214.171.124 2016-04-23 09:29:20,761 fail2ban.actions: WARNING [ssh] Ban 126.96.36.199 2016-04-23 09:41:55,910 fail2ban.actions: WARNING [ssh] Ban 188.8.131.52 2016-04-23 09:49:40,855 fail2ban.actions: WARNING [ssh] Ban 184.108.40.206 2016-04-23 09:50:02,385 fail2ban.actions: WARNING [ssh] Ban 220.127.116.11But this time from the Arabic Emirates.
This afternoon was a contact between Wellesley House School in Britain and Tim Peake on the International Space Station. So I decided to put the finished antenna rotor to good use since one of the triggers for building a rotor was getting my arms real tired on earlier ISS passes. And indeed, I had no problem with holding the antenna. But it still took a while before I heard anything and the signal was not very good.
: Request at work: "is there a tool which will lock your windows desktop when you walk away and your bluetooth device goes out of range? Should be good for managers to help them lock desktops and raise security awareness."
It seems like such a simple idea, someone must have done this. Well, that was a bit of a disappointment, the first implementation (BTProximity) is completely gone and on further searching I found btproxy which still has some rough edges (install by hand, add to system startup by hand).
According to one answer at http://www.techlicious.com/tip/computer-proximity-locks-for-mac-pc-chromebook/ it is possible to do this with the builtin Windows 7 bluetooth settings. Not with a work windows 7 laptop, I'll have to try it on a different system later.
With lots of my fellow amateurs making contacts all over north and south america this should not be hard but while I have heard amateurs from south america I haven't been able to make any contacts south of Puerto Rico up until today. I saw PT7DX active on 20meter PSK31 and tried to answer him a few times. On the third try it worked and we had a short contact in which I thanked him for the new country. The fun part is that I saw KB6NU in the US complain about HF propagation around the same time.
And a chance to receive an image from the Russian 'MAI-75' project. Originally I had a lot of trouble decoding the image with qsstv and the author of qsstv helped me find the ideal workflow. Upgrading qsstv and using a 48000 samples/second .wav file helped. Earlier I played the audio in audacity and decoded in qsstv with pavucontrol setting the 'Monitor of builtin audio' as input for qsstv.
ISS SSTV April 2016 MAI-75 image received by PE4KH at JO22NC 20160415 1627Z
And while I had the amateur satellite gear out I checked for upcoming interesting passes and saw that SO-50 would pass right after the ISS pass between SSTV experiments. I tracked the pass and heard activity, mostly from IZ5TEP with F0DTV. I tried answering a few times, to IZ5TEP and in general but no contacts. The amount of interference was not as bad as I heard a few times last year but it was not perfect amateur satellite behaviour either.
I saw people post more images which seemed to be from the MAI-75 SSTV program. I tried a pass at 18:27 UTC but heard nothing. Checking the article ISS Slow Scan TV in April - Amsat-UK shows that the ARISS commemorative SSTV event ended at 14 April 11:35 UTC and the first MAI-75 activity was 14:45 until 18:00 UTC. The next MAI-75 activity is Friday 15 April 14:10 until 19:00 UTC.
In a later pass I received two partial images.
ISS SSTV April 2016 image 06/12 received by PE4KH at JO22NC 20160412 1920ZThe good news is that standing outside holding my Arrow antenna I did some serious thinking how the Arrow is going to fit on the antenna rotor. And I tested how reception is when I fix the elevation at around 20-25 degrees: fine.
ISS SSTV April 2016 imagereceived by PE4KH at JO22NC 20160412 1920Z
Read the rest of ISS SSTV April 2016 image receivedToday a nice pass which fit between two stages of cooking our dinner so I recorded the audio. Again I heard no signal but then I heard the starting tones of a slowscan TV image and saw the signal meter pegged to S9++ (the maximum). One image was received in full.
ISS SSTV April 2016 image 12/12 received by PE4KH at JO22NC 20160412 1606Z
In one of the articles about the current ISS SSTV event was a starting time of
19:2518:25 UTC, and the pass over my QTH JO22NC started at 19:28 UTC. So I was out with the whole setup and a strong arm to aim the antenna at the ISS in the hope of receiving something. But nothing was received. The fun part is that an ISS pass shortly after sundown gives a visual aid to aim the antenna at, but no signal received. Also noticed by Mike Rupprecht DK3WN: ISS – no SSTV active - DK3WN Satblog with a very nice image. Update: Corrected starting time after rereading ARISS commemorative event (April 11-14) - ARISS SSTV Images which has been updated with:*** Update (April 11, 2016)Update 2016-04-12: First images received now in Asia and available from the ARISS SSTV Gallery
Looks like the start will be delayed. Seems the hardware is having issues and not transmitting. Troubleshooting is in work.
The antenna rotor made its first turns. I mounted it to a very old stepladder which has an almost vertical part at the top. The fun part is that with the upcoming ARISS SSTV event from ISS I could use a good rotor in the upcoming week.
New country today in amateur radio contacts: Japan. Another one of those lucky contacts without any planning, I just had the longwire antenna out to try if I could get a signal in the 6 meter band. I saw a call from Japan, answered it, answered it again after raising the power level and the contact was made.
: A brilliant observation about Douglas Adams and the future from back then. It helps a lot that Douglas Adams was a bit of what we now call a gadget freak.
Naast mijn bijdrage Mills on the Air 2016 PE4KH hebben ook andere leden van de Veron afdeling A08 Centrum besloten mee te doen aan 'Mills on the Air' en wel bij een molen een stuk dichter bij: PI4UTR doet mee met Mills On The Air 2016!. Ik hoop in ieder geval tijdens dat evenement zelf een verbinding te kunnen maken met PI4UTR/P.