Old "DX News" messages
PI4 is a digital modulation (MGM) specifically designed with beacons and propagation studies in mind.
Download PI-RX to decode PI4: http://www.rudius.net/oz2m/ngnb/pi-rx.
PI4 encoding examples in Arduino C, Atmel C, Delphi Pascal, Microsoft Visual Basic and Microsoft C++: http://www.rudius.net/oz2m/ngnb/software.htm.
PI4 online encoding and frequency calculation: http://www.rudius.net/oz2m/ngnb/pi4encoding.php.
PI4 specification: http://www.rudius.net/oz2m/ngnb/pi4.htm PI4 is a cousin of JT4, JT9 and WSPR.
OZ7IGY status page: http://www.rudius.net/oz7igy.
Contestperiod: August 11, 2013, 12:00 GMT – August 13, 2013, 11:59 GMT (end time last completed QSO).
Class 1: QRP (< 1.5 kW ERP).
Class 2: QRO (>1.5 kW ERP).
Stations can participate in one class only. No difference between single- or multi-operator stations or modes.
Exchange: Full callsigns, reports (e.g. 26 or R26) and final rogers (RRRR).
Final scoring: The total score is the sum of all points you received for all completed QSO’s together.
Logs via regular post can be sent to: A.F. Veldhuijsen, PA4EME, Westlandstraat 9, 6137 KE Sittard, The Netherlands.
Be sure you log contains at least the following:
- Your call, name, address and class you want to participate in.
- Stations in Class 1 (QRP) have to state details about the equipment they used in form of used output power and antenna gain. If no data about your station is given, you will be placed in Class 2. The power used for the calculation of the Effective Radiated Power will be the power measured at the output of your transceiver or active amplifier(s);
- The QSO list. As there are many logging programs available nearly every format is possible. But make sure that the log will show at least: date, time (to be specific: end time), call, report send, report received, locator and distance (equals points).
- With sending your log you also declare to have operated within the limits of your chosen Class, licence and local regulations when performing any activity that could impact your submitted score. Unsportsmanlike conduct can be ground for disqualification. Also you agree to have the log open to the public which might result in publishing your log on MMMonVHF or in the magazines DUBUS and/or Funk-Telegramm.
- Reception of a log will be confirmed in the same way it was received.
Special scoring for outside Europe stations: There will be a separate listing for stations outside Europe.
Certificate: All stations will receive a digital certificate showing the Class and ranking achieved.
 MMMonVHF (Make More Miles on VHF): www.mmmonvhf.de.
 DUBUS - the serious magazine for VHF and up amateur radio: www.dubus.org.
 Funk-Telegramm - Magazin für Funkamateure: www.funk-telegramm.de.
 IMO – International Meteor Organisation: www.imo.net.
 Operating Procedures for Meteor Scatter QSO’s: http://www.vhfdx.de/ms_howto.pdf.
 Проведение MS QSO в 1 районе IARU: http://www.vhfdx.ru/ms/provedenie-ms-qso-v-1-rayone-iaru.
 The “144 MHz Meteorscatter Sprint Contest” is supported by at least two software programs:
- Arcom (Ham Office) : www.hamoffice.de
- Ucxlog: www.ucxlog.de
Other logging programs are allowed as well.
These are the specifications:
- All Italian stations are authorized except ones 30 km or less from Italian border with Austria, Switzerland and France.
- Frequencies: 70,100 - 70,200 - 70,300 with 25 kHz of bandwidth.
- All modes with a maximum bandwidth of 25 kHz.
- Max power 50 Watt ERP.
Op Zaterdag 19 januari 2013 bent u weer van harte welkom op onze microgolf meeting in Westendorp.
- Sweepers 0-26 GHz.
- Spectrumanalyzers tot 26 GHz.
- Spectrumanalyzer 10KHz - 3.8GHz + Tracking generator ; Voor het meten van Filters, couplers, SWR en signalen.
- Meetzender 10Khz - 3.3GHz (AM, FM, CW, en puls).
- SWR 5MHz - 3.0GHz (RF-SWR Brug).
- Spectrumanalyzer tot 325 GHz.
- Vector netwerk analyzer tot 20 GHz ( neem een 3.5" diskette mee waarop de meetresultaten kunnen worden opgeslagen).
- Tektronix Videogenerator met sin x/x signaal.
- Tektronix VM700 video meetset.
- Barco Receiver I en II ontvanger/videodemodulator met meetkoppen voor 23cm 13cm en 3cm.
- NKF videodemodulator met baseband ingang voor het meten aan baseband atv modules.
- Spectrum analyser Agilent tot 3GHz.
- Ruisgetalmeter tot 24 GHz.
- Ruisgetalmeter 47 GHz.
- Powermeter tot 76 GHz.
- Afregelunit 24 GHz Filters.
- Signaalgenerator van 0 tot 18,6 GHZ (Mar 2031 / HP8673) FM smal- en breedband dus ook ATV.
- Spectrumanalyzer van 0 - 26,5 (of 31,8) GHz + Tracking tot 2,7 GHz.
- AM - 70 cm ATV generator.
- Counter tot 24 GHz met rubidium stabilisatie.
- Powermeter tot 250 Watt tot 2,5 GHz.
- Rubidium en GPS based frequentie standaard 10 Mhz.
- HP 5370 Time Interval Meter.
- HP 3336 B Signal Generator.
- HP 8405A Vector Voltmeter.
- GPIB control software based on KE5FX programs.
Wat kunt u laten meten?
- Voorversterkers: Ruisgetal en versterking.
- SHF stralers / antennes: Frequentie en aanpassing.
- Filters: doorlaat, aanpassing en demping.
- Overgang coax naar golfpijp.
- Versterkers: versterking en uitgangsvermogen.
- Spectrumanalyse: mixers, oscillatoren zenders etc... >100 GHz.
- IJken van zelfbouw meetapparatuur zoals powermeters, ruisbronnen, SWR bruggen, couplers, bakens etc...
- ATV basisband:
- Frequentiekarakteristiek, Groepslooptijd, Statische lineariteit, Kleuren vectoren, SRA gewogen en ongewogen, Brom, Reactie van PLL regellus op zwart/wit/zwart sprongen.
- Fase en frequentie van uw GPS 10 MHz standaard.
Heeft u een speciale "meetwens"? Stuur een mail. Er is nog veel meer meetapparatuur beschikbaar!!!
Vanwege de beperkte ruimte is alleen kleinschalige verkoop van microgolf spullen toegestaan. Wilt u een tafel reserveren stuur dan z.s.m. een mail want vol is vol!
Volg onze website voor updates www.pamicrowaves.nl.
We are happy to announce that ON4SHF/P and DL5EAG/P made the first QSO DL-ON on 24GHz during the contest of 7-8 july.
1215 08 Jul 2012
- DL5EAG-ON4SHF/P (/R),
- JO31EI(Krefeld)-JO20JQ (Ostiches),
- DL5EAG: 100mW / 30cm dish,
- ON4SHF/R: 3W / 85cm dish,
- CW, tropo/rs enhanced.
Congratulations to both stations.
Please find additional information in the here, and… have a lot of fun!!!
Best friendly 73,
Pawe³ Zakrzewski, SP7TEV
IARU Liaison Officer of the Polish Amateur Radio Union (PZK)
- IARU-Region-1 145 MHz September Contest 2011 (03/04 September 2011)
- IARU-Region-1 UHF/Microwaves October Contest 2011 (01/02 October 2011)
To the award ceremony at the ham radio fair in Friedrichshafen (www.hamradio-friedrichshafen.de).
Especially the following stations, operators and crews are welcome:
5P5T, DB6NT, DF0MU, DG1BHA, DL0GTH, DL0TS, DM7A, DR9A, F5OAU,
G3XDY, OM3RM, OK1AIY, OK1MAC, OK1RF, OK1YA, OL4K, S57C, SP6GWB
Beside the cups we have some goodies for a lot of participants.
CU & 73 de Martin, DL5NAH
70.005 CW - 35 Watt - 6el. DK7ZB beam N.
144.430 CW - ? Watt - 10el. DK7ZB beam N.
We all hope to receive them soon.
Best 73's Alex IV3KKW
4071 588 849. The branch code is 632 005.
- 8el DK7ZB
- 12el M2
Accommodation will be available from the evening of Wednesday 15th through to the morning of Sunday 19th. To provide best value the organising committee are arranging inclusive packages to minimise those hidden extras. The details will be published and the booking web site opened by January 2012.
Anyone with products of interest to the EME community, who would like to promote them at the conference or by taking advertising in the conference proceedings please contact me by direct email. I'm on the list or google G4NNS.
Thank you for allowing me to take this bandwidth on behalf of the organising committee.
CU at Cambridge in 2012
Vy 73 Brian G4NNS
For the contest rules please see http://www.rasedx.com/documentos/50raseing.pdf
- 21:53 CU8AO 51 51 HM49KL
- 22:02 CU8AO 52 52 HM49KL
- CU8DUB/B up to 549 as from 21:00
It has a composite VHF downlink that will easily fit into the FUNcube Dongle receive spectrum. The telemetry is 1 kbit BPSK and can, of course, also be received with a normal SSB 2 metre receiver.
The expected signal levels from ARISSat should be similar to those we expect from FUNcube itself (and also eventually from UKube) and the team are keen to discover what will be the minimum and best type of antennas for schools to use with a FCD. Therefore user experience with the ARISSat signals will be very valuable in making this determination.
To encourage everyone to receive ARISSat signals we are offering a FUN reward for listeners!
There are a number of categories for this challenge –they include:
- The first FCD user, from each continent, who can post a spectrum recording of the received signal together with evidence of decoding the data using the ARISSat software and of sending it to the ARISSat data warehouse.
- The first non-FCD user, from each continent, who can provide evidence of having decoded the signals and of sending it to the ARISSat data warehouse.
- The listener, using a FCD or not, who can demonstrate satisfactory reception of the telemetry in the same ways as described above, using the "smallest" possible receive antenna. The actual closing date for this part of the challenge will be announced later.
Please submit your "entries", including your location, station details (including FCD serial number where applicable), postal address and reports to g0auk [at] amsat [dot] org.
Go and visit Satellite Activity.
I am very pleased to inform you that the VERON VHF commission has decided to approve my proposal to introduce the Dutch Amateur Contest (DAC).
The first contest will be Tuesday January 4 in line with the NAC and the UKAC. The bands and dates are exact copies of the NAC.
Good activity on 5,7 GHz EME was expected during the second week-end of july, thanks to the coordination of G3LTF.
I decided to have a try, using my 2,3 m offset dish and the system used normally for tropo and rain scatter.
This system consists of a transverter kit from DB6NT and a modified surplus 6 GHz amplifier, giving about 8 W output.
Noise figure of the system is around 1 dB.
The 5,7 GHz transverter has an output on 144 MHz and is followed by another transverter 144 to 28 MHz.
There are various 28 MHz outputs. One output goes to a yaesu FT840 HF transceiver.
Another output goes to an SDR, and another one to a calibrated 28 MHz receiver, allowing precise measure of sun noise and moon noise.
During operation, permanent reading of moon noise allows perfect aiming of the dish and confirms that the system is working alright.
Most EME stations use circular polarization, so a "septum feed" was built following a description by OK1DFC.
Dimensions were adapted in order to illuminate correctly the offset dish.
After optimizing carefully the position of the feed, I could measure 0,5 to 0,6 dB of moon noise versus cold sky. Sun noise was a good 10,5 dB, meaning that the receiving side was working correctly. The feed has some sidelobes and is far from perfect, but efficiency seems to be quite good.
Now the results: during the week-end, 13 stations from Europe, USA and Japan were heard.
To my great surprise, some of them were even able to decode my QRP signal and 3 good QSOs resulted !!!
Conclusion: this band offers very interesting possibilities for the experimenter.
Tropospheric propagation and rain-scatter allow surprisingly good distances even with very small set-ups.
The above results also shows that EME contacts are possible with very low power, thanks to the amazing receiving capability of some stations.
Croatian Amateur Radio Association invites you to participate in the third Croatian 50/70MHz contest on Saturday, May 15th 2010 from 12.00-17.00 UTC.
Contest rules can be found at: http://www.hrvhf.net/upload/croatian_50_70mhz_rules.pdf
Prizes: The first three stations in each category PLAQUES
Logs you can put by yourself on our VHF contest robot www.hrvhf.net Contest tab > upload EDI.
It's very simple.
Croatian VHF/UHF/mw manager
Yesterday Eric, ON5TA had a first QSO with JA on the 3cm Band EME.
The QSOs needed quite a lot of preparation work, because japanese hams are only allowed to transmit on 10.450 MHz, not on 10.368 MHZ.
So a new receiving system had to be build here in order to be able to make "crossband" contacts.
We also needed a common window and the best possible moon conditions. These conditions were met yesterday, but wind could have been a problem.
The japanese hams used big 5 to 6m dishes, very sharp on 3 cm, which make aiming to the moon very difficult with the slightest wind.
As you know, we had wind here yesterday evening, but it was manageable during the QSOs
This why JA4BLC is talking about "a miracle" in his mail. HI !
A little piece of the mail of JA6CZD
Yes, QSO by ON5TA-JA6CZD is the first ever between ON-JA on 3cm EME, GREAT!
Me too very much pleased to work you. You are MY #3 on 3cm EME and good signal as well as G4KGC I worked 30minutes before.
It was miracle no wind happened during our QSO.
Frequency span: 70.000-70.200 MHz. Access is granted on secondary basis. Maximum bandwidth is 16 kHz and power limit is 100 W.
Licensees need to apply to the PTA for a special license. The experimental license is open to both “N” and “G” license classes.
With a score of 128 QSO he is the winner of this contest in the Single OP class.
You can find the complete results on this page
On November 5th Eric ON5TA managed to have a QSO with Charlie VK3NX.
They had both problems with the automatic moon tracking system, but the could finish the QSO.
A few senteces from the mail received from Charlie:
Firstly TU TU !!
What a wonderful signal you have. For me it was “speaker” copy (no need for tin cans)
I find it very hard to believe you only have 2.3m dish and 30 W. It is a credit to your “attention to detail”. Your signal was “huge”!
I have only worked 14 initials on 10 GHz but your’s was easier to copy than some “bigger stations”
I could only just hear my echoes today but I heard you every period. A few times I stopped hearing you in the middle of a sequence, I guess wind at your end?... or perhaps you do what I do and need to re-align on moon noise in the middle of a sked?
Thank you for trying again and I am very happy that we have had such good success (now that I was looking on the right freq...Hi..Hi..)
Unfortunately halfway through the sked for the 1st time ever I “blew up” the regulator on my Azimuth control!...I had to operate the Az movement in “Slow mode” so it took a lot of effort to keep on the moon......and also Murphy tried hard to stop me because TWTA Helix current kept “tripping” the alarm circuit because of moisture in the air.......
....but none of this matters, because of the wonderful success. It is a “ majic” achievement for me each time I work a new station.
Many tnx and hpe to cuagn on 10 GHz and perhaps another band?
73 and GL
On 5th in 2m; On 6th in 70cm 23cm 10Ghz and up.
If want more information, see www.arilucca.it.
I also replaced the coax relay with a waveguide switch + W/G preamp.
Have now 1.3 dB moon noise and abt 13.4 dB sun noise/cs, which is much better than before.
Contacted this morning: F2TU, OK1KIR, F5JWF (#), IQ4DF, W5LUA (#), VE4MA (#) and ES5PC (#).
These could be the first 3 cm QSOs between ON - VE and ON - ES.
Thanks to all for a very enjoyable morning !
73 de Eric
which took place for the first time in the 2008 Perseid shower.
The 144 MHz Meteorscatter Sprint Contest will take place each year on the day of the from IMO (International Meteor Organization) announced maximum of the Perseid shower.
Feel free to download the rules in English or German
Translation neededLa balise ON0VHF a produit quelques perturbations dans le segment DX en VHF. Ce problème a été corrigé grâce à Pierre ON7PC et ON0VHF dispose d'un nouvel émetteur. Les rapports peuvent être envoyés à vhf [at] uba [dot] be
There has never been so many dishes pointed at the moon since the lunar landings and possibly this will even break that record.
Patrick, ON7ARQ/MM will be QRV /MM on the Costa Europa between May 28th and June 8th with a Yaesu FT817 (5W max) on 50-144-432Mhz.
- 28/05 Savona (JN44) Italy,
- 29/05 Barcelona (JN11).
- Passing Balearic Islands,
- 31/05 Casablanca (IM63),
- 01/06 Agadir,
- 02/06 Arrecife (IL28), Lanzarote
- 03/06 Santa Cruz (IL18), Teneriffe,
- 04/06Funchal (IM12) Madeira,
- 06/06 Malaga (IM76) (UBA-contest 6m + EA-contest).
- Passing Balearic Islands
- 08/06 Savona - Italy.
Note: June 2008 on the Island of Elba (IA5) was very poor on VHF-bands.
QSL via home call.
- Segment 70,250 - 70,350 MHz
- Max. 10 W ERP
- Extra class only
- Each station must apply for a special permission for 70 MHz
He will be QRV every morning on 144.265, 432MHz and 1296 MHz.
ON7VA, Eddy Claes, will be QRV all bands from 02/05/2009 - 09/05/2009.
On 02 and 03/05/2009 QRV on 2m.
SPECIAL EDITION of QSL-Card 100% for each QSO on different bands.
F/ON7VA/P - Eddy - IN98QL - QTH: CEAUCE - La Vérie -Department 61 - ORNE.
Make more miles on VHF has publishe the list of the most wanted squares.
You will find the list with this link
We are happy to announce, that we received a license to operate a beacon on the 4 m band.
- Callsign: OE5QL
- The beacon frequency is: 70,045 MHz
- Locator: JN78CJ
- Height: 840m ASL
- Antenna: Half-Wave Vertical
This is no Amateur Radio Call the Austrian PTT said, it is an Experimental Operation Radio Call.
Well, there are some restrictions:
- Time limit is 1 June and until 31 August 2009.
- Transmission is only 2 minutes per sequence between 04:00 and 19:47 UTC.
- Each sequence begins at full hour +00 min., +15 min., +30 min. and +45 min, e.g. 04:00-04:02, 04:15-04:17, 04:30-04:32 and 04:45-04:47.
- Transmission power is 1 W ERP the first minute of each sequence and 5 W ERP the second minute of each sequence.
If the beacon does not interfere with services outside of Austria, an extension is possible after August 2009 the Austrian PTT said.
Anyway after August 2009 we will try to negotiations for 24/7 duration period for the beacon.
OEVSV VHF Manager