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Tag: LW (Page 9 of 10)

QSL NDB WU-329 and VNA-364 Umea Airport

Swedavia at Umea Airport sent me a confirmation having received my reception report of NDB WU-329 and VNA-364. I am afraid that I can’t actually call this one a QSL… it is more a “thank you” and polite referral to LFV “Luftfartsverket”. LFV is the organization that remotely operates 16 airports from four control centres in Sweden: ATCC Stockholm, ATCC Malmö, RTC Stockholm and Östgöta Kontrollcentral (ÖKC).

With 1566 and 1578 kilometers from my home QTH these rank pretty high in terms of distance.

QSL NDB OZN-372 Prins Christian Sund Greenland

The longest distance over which I have received a beacon so far is OZN Prins Christian Sund with 3300 km. A bit of research on the internet made me think that this beacon might very well be operated by Tusass Greenland. Apparently that was correct: Bo Mogensen, who also confirmed my Aasiaat Radio reception, sent me a brief email as QSL OZN-372 Prins Christian Sund.

The OZN radio beacon is located at weather station at the Prins Christian Sund on the southern tip of Greenland. This station was founded by the US during WWII under the name Bluie East One.

QSL NDB EN-400 Örebro Airport

Another QSL from a Swedish NDB received in the SQUEEZE100 event. Mr. Mikael Reinholds, Manager IT&ANS, was so kind to send me an email as QSL NDB EN-400 at Örebro Airport in Sweden. The distance to this beacon is 1019 kilometer from my home QTH.

I will provide an update should I receive the promised picture of the EN site.

QSL NDB EN on 400 kHz for Örebro Airport, Sweden
QSL NDB EN on 400 kHz for Örebro Airport, Sweden

QSL NDB TY-384 Torsby Airport

Torsby is a small airport in Sweden, 1022 km from my home QTH. From here the Amapola company operates daily flights to Stockholm. Martin Berglund, Airport Manager pf Torsby Airport sent me an email QSL to confirm my reception of the local NDB TY on 384 kHz.

Email to QSL NDB TY-384 Torsby, Sweden

QSL NDB KM-366 Kalmar Öland Airport

Using the PskovNDB software I received so many new beacons during the SQUEEZE100 event that I did not know where to start sending QSL requests. I decided to target Lithuania, Sweden and Croatia as you can find good address information on the web.

Mr. Filip Wiberg, Chief Operations ATS Kalmar (filip.wiberg(at)acr-sweden.se), was so kind to QSL NDB KM-366 for Kalmar Öland Airport. Located on the east coast of Sweden this beacon is 894 kms from my home QTH.

NDB KM-366 Kalmar, Sweden
A polite email from Mr. Wibert at Kalmar Airport confirms my reception of KM-366

“SQUEEZE 100” NDB Event

Last weekend I participated in the “SQUEEZE 100” NDB event, organized by the NDBlist group. Aim was to log 100 NDBs (Non Directional Beacons) in an as small frequency range possible. Hence the name “SQUEEZE 100”.

I had participated in two earlier events this year in which I logged only 4 and 13 stations respectively. So I decided that I needed a bit of help and installed Pskov NDB software. The result was impressive. Not knowing what to expect I started monitoring between 300 and 500 kHz. After I had 100 NDBs logged I could start to zoom in a bit, trying to squeeze the frequency range.

In total I logged over 183 NDBs. Between 350 and 403 kHz I had exactly 100 NDBs, close to 2 per kHz! The picture above shows the most distant ones I heard. With 3033 km OZN from Prins Christian Sund in Greenland was on top of my list. I was also very happy to catch three beacons from Iceland (KF-392; VM-375 and HN-330) and two from Algeria (ON-415; BJA-423).

Below the Pskov screenshot of my OZN-372 log:

Signal from NDB OZN, Prins Christiansund, Greenland on 372 kHz

QSL DCF77 Time-Signal 77.5 kHz

QSL DCF77 Mainflingen
QSL DCF77 Mainflingen Time-Signal 77.5 kHz

I received this beautiful QSL card DCF77 Time-Signal on 77.5 kHz by mail. The transmitter is located in Mainflingen, Germany. The QSL was accompanied by a folder on how time is managed. I also received a 2009 magazine from the PTB (Physikalisch-Technischen Bundesanstalt) with a special topic on 50 years of DCF77. This magazine is also available online. I sent my report to dirk.piester@ptb.de .

As you can read on the QSL there is no voice announcement of the time. Instead the date and time are transmitted by in code through the interval between second markers (0.1 s = “zero”; 0.2 s = “1”). You can see this in my waterfall map below. The gap prior to second 53 and 57 is twice as big. At the minute there is no gap.

DCF77 signal. The binary code is clearly visible.

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