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Friday 7 September 2007

How to convert a 4 wheels into ham radio station multibands in 20 minutes

It's while TO1USB activation in Guadeloupe, where I could test in real conditions the setting of a portable ham radio station that I wanted QRV on 50MHz, 28MHz, 21MHz, 14MHz, 144MHz, 432MHz only on USB mode.

Not so easy in portable on a island between compromise of easy to travel and antenna performances. For the transceiver, no problem, the ICOM 706 MKIIG is a real good rig to operate quickly on 6 bands with 100 Watts from 14Mhz to 50Mhz, small and easy to carry out.

To return to the antenna question I need to be QRV on 6 bands HF+VHF+UHF but especially be able to assembly and disassembling antenna quickly and even for a single person alone to do it.

Here is what looks like the final result and solution founded :

- 1 mast of 7 meters, elements of 40cm of diameter and 2m and 1m length - QSJ 15€ by elements
- 1 vertical antenna ITA tri-bands with wire radians, 1 per band: 14MHz, 21MHz and 28MHz, Gain 2dB - QSJ 150 €
- 1 vertical Diamond Tri-bands on 50MHz, 144MHz, 432Mhz, Gain:10dBi - QSJ 100 €

I was on the coasts of Saint-François towards La Pointe des Chateaux in east of guadeloupe island that offers good conditions for DX, the large-ground being a calcareous plate, and in addition with the sea in edge of beach offering a very good plan of ground.

The key is in the 4 wheels vehicule.

It's by examining the 4 wheels that the solution was found, in the simplest possible way: the clamp of the door spare wheel like support of the antennas.

Then it was very easy to find a TV adaptator support for about 20€ at a local store, and get a solid fixing for antenna.

The spare wheel is also very useful in the assembly, by using it like arm of lever to assemble and dismount the 7 meters from ground antenna support, even being alone to do it.

Lastly, it remains to attach the 3 wire radians which are used to solidarize the unit in particular when there are some wind, very often at this period of the year in guadeloupe island because of the hurricane season.

Here is the arrangement adopted in the 4 wheels to preserve sitted places and succeed to put everything in the car:

Some results, nearly 500 DX QSO were realized with nice report of 59 in Europe, not so band with 100 Watts, vertical antenna and especially in the very lowest of the solar cycle whose return is envisaged as of January 2008.

We have improved antenna sand installation, with the great help of Léontel and Jean-Michel, in the heights of Deshaies (Basse-Terre), 12 hours before the Dean Tropical depression. We follow evolution of Dean in real time on cellular thanks to SXM Cyclone services and also on air thanks to local ham radio during all the activation.

Everything was ok for both all 3 of us and the equipement, the DX conditions was great like we expect just before Dean and return very low after Dean for few days, also due to the hight volume of rain after a cyclone.

Thanks all for QSO, and QSL, the first one was send this week.

73 de F1JXQ - past TO1IUSB

Sunday 2 September 2007

TM0RWC World cup of Rugby 2007 Contest in France

The World cup of Rugby 2007 proceeds this year in France and, on this occasion, the Ref-Union agreed to promote our activity within the framework of this sporting event.

World cup of Rugby 2007 TM0RWC Contest have received several projects of activation for this World cup, the REF-Union named F5UDW coordinator of this activity DCMR (Diploma World cup of Rugby). The project of the ARALA (Association of the Radio hams of Loire-Atlantique) was adopted, F5UDW thus directed all Om having good ideas towards Rene F5APM responsible for this project.

A special callsign will be activated in each city where the matches of Rugby will proceed:

• TM0RWC Saint-Denis (93) for the stage where the final - Stage of France will be played

• TM1RWC Paris (75) for the stage where the 3°place - Park of the Princes will be played

• TM2RWC Bordeaux (33)

• TM3RWC Lens (62)

• TM4RWC Lyon (69)

• TM5RWC Marseilles (13)

• TM6RWC Montpellier (34)

• TM7RWC Nantes (44)

• TM8RWC Saint-Etienne (42)

• TM9RWC Toulouse (31)

Calendar of these activations:

TM0RWC: 7 and 8/09, 13 and 14/09, 20 and 21/09, 6 and 7/10, 12, 13 and 14/10, 18, 19 and 20/10

TM1RWC: 8,9 and 10/09, 18,19 and 20/09, 27/09 to the 01/10, 18, 19 and 20/10

TM2RWC: 8,9 and 10/09, 14,15 and 16/09, of the 24/09 to the 01/10

TM3RWC: 7,8 and 10/09, of the 17 to the 27/09

TM4RWC: from the 7 to the 20/09

TM5RWC: 7 and 8/09, 11 and 12/09, 21 and 22/09, of the 30/09 to the 02/10, the 05 to the 09/10

TM6RWC: from the 11 to the 17/09, the 21 to the 24/09, the 30/09 to the 02/10

TM7RWC: from the 08 to the 11/09, the 20 to the 29/09

TM8RWC: from the 08 to the 12/09, the 25/09 to the 03/10

TM9RWC: from the 11 to the 17/09, the 23 to the 29/09

OPERATION AND QSL.

The World cup of Rugby 2007 Diploma is opened to all the radio hams and SWL, throughout World cup of Rugby 2007, i.e. of September 7 00h00 to October 20, 2007 24h00.

• the QSO are realizable on all bands and modes of transmission regularly allotted to the radio hams. ECHOLINK are excluded.

• To obtain the diploma QSL (financed by the Ref.-Union), follow the instructions of each operator of the participating cities to know the QSL Manager.

• Each callsign will be activated during 14 days distributed over all the duration of the CMR and according to the calendar above.

CONDITIONS Of OBTAINING DIPLOMA World cup of Rugby 2007

The Diploma QSL Manager is F5IL. To require the diplomas the QSL are not necessary, only an extract of the notebook of traffic is required. The requests will have to arrive at the Diploma Manager before end on December 31, 2008 and to mention the name and first name of the applicant, his call sign and the address where he wants to receive the diploma of the World cup of Rugby. Join 7 € (10 $ or 10 IRC) to your request, to cover the costs of impression and dispatch.

For each diploma it will be necessary to contact:

Diploma CMR Gold: the 10 TMxRWC stations. Diploma CMR Money: 8 TMxRWC for the stations of Europe and 5 for the others. Diplôme CMR Bronzes: 5 TMxRWC for the stations of Europe and 3 for the others. Diploma CMR VHF: 3 TMxRWC

Address Diploma World cup of Rugby 2007 Manager :

Ref-union, Service of the Diplomas, BP 77429, 37074 - Tours Cedex 2 FRANCE

Official international website fo the World Cup of Rugby 2007 : http://www.rugbyworldcup.com/

Source : http://www.passion-radio.org/blog/tm0rwc-coupe-du-monde-de-rugby-2007/293

Friday 31 August 2007

Warning of increased geomagnetic activity and DX propagation

Sunspot numbers pulled up from 0 this week, but barely. Average daily sunspot numbers rose over nine points to 12.9. Geomagnetic conditions were quiet. Conditions have been quiet for so long that we may not appreciate this, as many of us wish for more solar activity and sunspots.

It wasn't long ago when we had more sunspots, but the accompanying geomagnetic activity made conditions difficult. Check the Planetary A index in October 2002, April, June, September and December 2003, and into January 2004. For 2003, check http://www.sec.noaa.gov/ftpdir/indices/old_indices/2003_DGD.txt. For any other year, just change 2003 toward the end of the URL, and to check sunspot numbers change DGD to DSD at the end of the URL.

If you read ARRL Propagation Bulletins from back then, in addition to complaints about the higher geomagnetic activity, you'll find stories of better VHF propagation during periods of geomagnetic disturbance. You can see old bulletins back through 1995 at, http://www.arrl.org/w1aw/prop/.

The Australian Ionospheric Prediction Service sent out a warning of increased geomagnetic activity centered on September 1 due to a wind stream from a solar coronal hole. They predict, August 31, will be quiet with increasing activity late in the day, unsettled to active conditions with possible minor storm on Saturday, September 1, and mostly unsettled conditions September 2.

Geophysical Institute Prague predicted earlier that August 31 would be quiet to unsettled, September 1 unsettled to active, unsettled conditions September 2-3, quiet September 4-5, and unsettled to active again on September 6.

Over the same period the US Air Force predicts a Planetary A index of 15, 25, 12, 12, 8, 5 and 15 for August 31 through September 6.

From the same prediction, it looks like September 8-17 may see a return of 0 sunspot days.

QST de W1AW Propagation Forecast Bulletin 36 ARLP036 From Tad Cook, K7RA Seattle, WA August 31, 2007 To all radio amateurs

Wednesday 15 August 2007

Tropical storm Dean alarm for French West Indies by SXM Cyclone

Tropical storm DEAN, with a statute of hurricane of category 2 or 3, is reinforced and it was located at 23h00 local to 2085 km in the East of the French West Indies (Antilles Françaises).

The winds constant blow now to 85 km/h and are made feel to 85 km of the center. the pressure falls with 1000 mb.

It carries on its Western road full and if it maintains this tendency that would be Martinique Island which would be threatened on August 17 in end according to midday, however its trajectory can still vary from here next the 24 hours and this for this reason that all the French West Indies islands are in YELLOW cyclonic vigilance

Tropical storm Dean on SXM Cyclone

To follow the tropical storm Dean visit SXM Cyclone and Hurricane Advisories

Tuesday 14 August 2007

FG5JK Silent key

With tears in eyes I sad announce to you that FG5JK Gerard passed silent key on August 13 2007 due to a cardiac attack.

FG5JK proposed original hiring of bungalow in Guadeloupe with a radio shack, and others things. I wrote a article before to know him and meet him by chance on a beach in Guadeloupe Island thanks to his wife who, while passing on the road, saw the antennas that I had deployed on a beach towards La Pointe des chateaux.

Then Gerard come and asks me “Radio ham? ”, I answer a little surprised "Yes !". It was really my lucky day, precisely the day when my IC 706mkIIG breaks down on HF bands.

Gerard then proposes me, by an extraordinary chance, a same icom ic 706mkiig, that it had bought on ebay and never used.

Without its help I would never be able to continue activation TO1USB thanks to his assistance.

We will activate in homage to his memory with other OM' S here on guadeloupe, on Thursday 16 August 2007 on 20m and 10m.

Gerard, the life did not have leave us enought time to know you more each other and it is my greater regret. I send you last once my 73 QRO and to your family.

This RingSurf Amateur Radio Net Ring
owned by FG/F1JXQ > Ham Radio Amateur & DXpedition.

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