Tag Archives: AirScout

AirScout: New Version 1.1.0.0 is online!

A brand new version of AirScout can be download. Frank, DL2ALF, has implemented a new source for airplane data as well as a couple of new features.

2015-02-10 20_12_49-AirScout - Aircraft Scatter Prediction V1.1.0.0 (c) 2013 DL2ALFMost spectacular is the ability to track airplanes with the antenna in azimuth and elevation. When enabling tracking, the user can select between several interfaces. I am using the plain WSJT-compatible “azel.dat” file. First tests on DB0NCO are very promising.

AirScout out of Order

AirScout is not operable at present, due to changes at the data source. Frank, DL2ALF, is active to solve the problem. No planes will currently be shown in the map. If any news available, I will post it here and in the Microwave DX Group on Facebook.

2015-01-22 22_56_50-AirScout - Aircraft Scatter Prediction V1.0.0.1 (c) 2013 DL2ALF

Presentation “Let´s Bounce” IIa

Last night, when I was going to switch off all the stuff in my shack, I saw an email from Malte, DE7LMS. I opened it and found a link to a video he recorded of my recent presentation in Weinheim.

Presentation “Let´s Bounce” III

My presentation “Let´s Bounce” will be given on two more dates:

October 25th, 2014 on the 4th Hessian GHz Meeting in Fernwald

Short version of the lecture with focus on aircraft scatter and ISS bounce.
We meet at 15:00 MEST on the car park at the town hall. There will be a flee market for GHz stuff and the opportunity to test own equipment or to have QSOs with other participants.

Gaststätte “Ratsschänke”
Oppenröder Strasse 1, 35463 Fernwald-Steinbach
Locator: JO40JN33VG

November 7th, 2014, 20:00 MET on the monthly meeting of DARC OV Miltenberg, B24

Full Version with overview of propagation modes, aircraft scatter, ISS bounce and visual moonbounce.

Deutscher Amateur Radio Club e.V.
Ortsverband Miltenberg, B24
Gasthaus “Goldenes Faß”
Kirchstraße 13, 63920 Großheubach
Locator: JN49OR64JJ

If you like to attend or need further information, just send an email to dj5ar (at) darc.de

IARU-Region-1 UHF/Microwaves Contest 2014

After my complainments about using the ON4KST chat in March Contest and the response I received from Claus, OZ1FDH, and Kjeld, OZ1FF, recommending the KST2ME tool, I added my homebrew prototype of a selective ON4KST client extension to my station control software. It communicates via telnet with the server. While working satisfactorily under normal circumstances, it was a desaster under contest load. When the software didn´t crash, it at least slowed down, by computing hundreds of posts in shortest time. Between 300 and 400 users have been logged to the microwave chat during contest time. During the first contest hours I tried to solve the problems with certain bug fixes, resulting in a huge loss of contest time. So I had to return to the classic style in using the web client of the chat.

QSOs on 23 cm

In total I logged 73 QSOs on 23 cm to 12 DXCC countries, spread over 39 grid squares (results). ODX was HG7F over 817 km. The use of the AirScout software, written by Frank, DL2ALF, has been essential. Most of the QSOs have been completed by assistance of aircraft scatter.

A nice example is the one with DJ5BV in JO30KI. The distance isn´t really far enough to do it via aircraft sctatter, but it seems, both antennas were pointing west and that resulted in effects of aircraft backscatter with significant dopplershifted reflections.

2014-10-05 11_59_34-Backscatter dj5bv innerDopplershifted reflections of Gerd, DJ5BV, caused by backscatter of aircrafts.

 

Presentation “Let´s Bounce”

On July 24th, 2014 on 19:00 CEST I will talk about how to surmount the horizon on VHF and up at the local DARC Club in Bodenheim near Mainz.

After giving an overview over the classic propagation modes Es, Aurora, MS and Tropo, I will explain, how aircraft scatter and ISS bounce work. EME will be subjected too and the presentation will be completed by an introduction to “Visual Moonbounce” as performed by Daniela de Paulis.

Location:
Deutscher Amateur-Radio-Club e.V.
Ortsverband Bodenheim
Haus der Vereine
Laubenheimer Str. 22
55294 Bodenheim

The admission is free, but please register via email to
DK2FQ   wolfgang.beer (at) gmx.net   or to me   dj5ar (at) darc.de

Article in “Funkamateur” magazine July 2014

German Funkamateur mgazine has published my article “Abenteuer Bakenbeobachtung von 144 MHz bis 10 GHz” in its recent issue July 2014. As many topics are related to posts on this website, some of them are compiled here. Links to certain other websites can be found in the link list to the right.

Weather, rainscatter:

Rainscatter on 23 and 13 cm
Impressive Thunderstorm

Weather, troposheric ducting:

Another strange constellation (Update)
Strange Conditions
Opening September 21st 2013

Aircraft scatter (video):

PI7ALK via Aircraft Scatter

List of beacons, heard by DJ5AR in Mainz, JN49CV

My new beacon list

AirScout V1.0.0.0 released!

I just received an email from Frank, DL2ALF, that he released the first official Version of his famous software AirScout. He also setup a website, dedicated to this program:

http://www.airscout.eu/

Here you can find latest news, downloads, FAQs and a manual.

TNX Frank!

Aircraft Scatter – useful for short distances

Thursday night I tried a QSO on 23 cm with DG2PU in JO30PH, what´s a distance of only 80 km. Unfortunately Thomas is located down in a valley with Taunus and Hunsrueck mountains between us. His neighbor Marcel, DK7UP is closed by, but up on a hill. While it´s no problem to contact Marcel on 23 cm, Thomas signal was only 41, peaking 51 from time to time. Since beacons in similar distances often produce nice signals via aircraft scatter here, I suggested to try a QSO using airplanes to get reflections, but Frankfurt airport was already closed at that time that there was only very little air traffic. So we tried this evening. Our antennas were elevated by about than 10°, because the hot spot was in a distance of only 40 km (and a heigt of 10.000m). The second plane passed by in perfect manner and I could copy Thomas for about 10 to 15 seconds with 57, enough to complete a QSO. Due to the short distance the hot area around the center of the path is relatively small and reflections will not last too long.

2014-01-03 09_36_19-AirScout -DG2PU

Path between DG2PU and DJ5AR in AirScout

Back on Earth…..

….. I worked in the Alpe Adria Contest last Sunday on 23 cm. In parallel there was an activity contest in Czechia. So a lot of stations from east, southeast and south filled the log.

Alpe Adria Contest 2013 on 23 cm

Remarkable was a nice SSB-QSO with Mirek, OK2UYZ in JN99FS over more than 700 km via tropo. Lane, S54AA in JN76EG could be worked, who was beaming into a large valley towards the Alps with mountains of 2.500 m. Another aircraft scatter QSO I had with Walter, IW3SPI in JN66OD, who is very, very close to the Alps.

Pathinfo by AirScout

Path information by AirScout

The reflections were rare and short but enough to complete.