Author Archives: admin

WAE III Award on VHF/UHF/SHF Bands

May 8th, 2018

Recently, when getting the WAC Award for 23 cm, I outed myself, not really being an awards collector. The other day some HAMs proudly presented the first WAE awards for FT8 only contacts on Facebook. So the question was, how far would I come with VHF and up. Surprisingly I found QSLs for 42 WAE countries and 100 band points, when checking my shoe boxes and the  QSL systems in the Internet.

2018: WAE III, 100 of the 106 Band Points on 144 MHz to 2320 MHz

As electronic QSLs were involved, these had at least to be imported to the German “DARC Community Logbook”, short DCL, for the award application. It´s not my favourite, because there are problems to enter and store QSOs on the GHz bands. I asked the developer about and he mentioned, that it isn´t intended for. So I decided to interpret DCL as “Direct Current Log”. No wonder, there also was no way to delete the six embarassing shortwave QSLs, it had imported automatically.

 

New Beacon DB0WML on 13 cm

May 7th, 2018

The other day I noticed some cluster spots about a new beacon DB0WML in JO31MU on 2320.910 MHz. So I had a look for it today. Nothing via tropo, but nice reflections on airplanes.

At least I was bearing to an A380 in a distance of about 30 km at a height of 12 km with 33° elevation, to record this clip.

Also I was lucky to get a snapshot of this particular bird!

The beacon is runnung 1.5 W into a 10 dB slot antenna according the information in beaconspot.eu
The beacon is operated by DARC local chapter N40, keeper is Rudolf, DK8QU.

The screenshot shows DB0UX on 2320.900 MHz, DB0MJ on .904 and DB0WML on .910 in good Neighbourhood.

VHF/UHF/SHF Contest May 2018

May 6th, 2018

It´s one of the rare moments in the life of a Radio Amateur, when his shack is cleared up. Beyond believe, everything was up and running 2 hours (!) before contest time. Being a kind of bewildered, I sorted the stuff on my desk. The amazing result can be admired in the photo I took hereafter.

Starting with a nice QSO with M1CRO in SSB on 23 cm, I tried the new 3 cm Equipment, mounted on the VHF/UHF pole. 1 W into a 50 cm dish should be enough to collect first experiences. Two QSOs over 100 km were entered to the log. Quite nice, but further tests showed, that the topography is not ideal to cover larger distances, without the help of e.g. tropo, aircraft or rain scatter.

QSOs on 23 cm in blue, on 13 cm in red

Then I had my focus on 1296 and 2320 MHz, as usual. At least 58 QSOs, 36 squares and 14 DXCCs on 23 cm and 32 QSOs, 25 squares and 10 DXCCs on 13 cm have been logged. ODX, as last year, was HG7F in JN97KR over 817 km on both bands. Having an easy exchange on 1296 MHz, it took us nearly 20 minutes of hard work to puzzle a QSO on 13 cm as well. I remeber, last year it was vice versa.

F5ZBM on Air again!

April 20th, 2018

The french beacon F5ZBM is on air again. I found it accidentally, when looking for other french beacons. It is at a new location in JN18MN near Paris transmitting on 1,296.8475 MHz. Nice to monitor it in Mainz via aircraft scatter over a distance of 406 km!


The keying is in F1 with a very narrow spacing. Power is 10 W ERP into a slot antenna, as can be seeen at BEACONSPOT.eu

Another view on F5ZBM in WSJT-X Wide Graph

 

DB0TUD as Beacon #60 on 23 cm

March, 23rd, 2018

With the dish bearing eastwards tonight I mentioned the trace of a signal appearing and disappearing close to the local beacon of DF5AY. A quick look at beaconspot.eu told me, DB0TUD should be around there.

I copied DB0TUD in summer 2017 via rain scatter on 13 cm, but never on 23 cm so far.

Curious about the source of the signal after catching a “…UA…”  I turned the dish to Dresden and monitored the frequency for about an hour. The mostly short appearences of the signal correlated with planes crossing the path to DB0TUD in JO61UA. After an hour or more I got a reflection containing some CW : ” …0TUD JO61…”.

OZ7IGY and friends

December 22nd, 2017

Tonight I monitored OZ7IGY on 2,320.930 MHz via aircraft scatter. It was nice to see other beacons appearing shortly in the waterfall diagram.

OZ7IGY and friends in time lapse

From left to right:
2.320.900: DB0UX, JN48FX, 105 km, tropo
2,320.910: DB0XY, JN51EU, 263 km, aircraft scatter
2.320.920: DB0VC, JN54IF, 509 km, aircraft scatter
2,320.930: OZ7IGY, JN55WM, 670 km, aircraft scatter

The dish was bearing 20° to OZ7IGY. The -3 dB beamwidth is just 3.2° on 13 cm.

 

A digital evening on 23 cm

October 25th, 2017

There was nice activity in JT9F on 23 cm tonight. It seems this mode works fine with aircraft scatter. I first worked Conrad, PA5Y in JO21VO (255 km) and Sam, G4DDK in JO02VO (540 km) via Tropo. Then logged a QSO with Neil, G4BRK in IO91HP using mainly aircraft scatter. In another test I decoded Neil, G4DBN in IO93NR (756 km) by reflections on airplanes. PA0JME and ON5KTO were calling CQ, but not replying to my calls. Instead I worked John, G4BAO in JO02cg (619 km) in an (too) easy way.

Worked stations in green, the heard ones in blue.

Anyway, it was a promising and exiting evening!

Addendum October 27th, 2017

Yesterday I logged Rien, PA0JME, Wim, ON5KTO and John, G4ZTR, also in JT9F on 23 cm.

Chatting with John, G4BAO, last night, I learned, he recently initiated a “Digifest” on the microwave bands every Wednesday. This resulted in what happened two days ago. In my opinion it´s a very good idea to have such an activity evening beside the regular contests.

Equipment Test on the ISS

September 27th, 2017

Tonight ESA astronaut Paolo Nespoli, IZ0JPA, aboard the International Space Station tested the amateur radio equipment in the Columbus Module.

Signal quality was better than expected, as it was a pass with quite low culmination at 48° elevation only. He could be heard well on 145.8 MHz FM as well.

Groundtrack of the ISS

The following pass at 20:44 UTC was more convenient and culminated at 62° elevation in the north. But Paolo could only be seen in the very first seconds, before he switched HamTV to blank transmission.