dinsdag 29 april 2014

Congratulations! Your log was accepted!

I just sent in the Cabrillo log for the SP DX contest and the CQMM DX contest.
Just in time, because I had almost forgot.
Often I leave the shack after the contest, when the contest ends in the afternoon.
Sometime I spent some time on the log in the same evening.
But often I forget the contest at all, until the next weekend.

After the contests I had little time to send in the Cabrillo files.
But today I luckily remembered.

Category
The most important part of the Cabrillo file is the Category.
Wrong category, no award.

Soapbox
I always spent much time on the Soapbox comments.
It's great fun to mention in the Soapbox, a single QSO made with very low power,
for example 10 milliwatts, using an attenuator.
Or the number of QSO's made with more than 1000 Miles per Watt.
Or a QSO that I made with South America, during the CQMM DX with just 2.5 W
But this can take quite some time to calculate and write about it.

75 Characters
The Cabrillo file of the SP DX was immediately accepted.
The Cabrillo file for the CQMM DX was rejected at first.
The Soapbox line which are restricted to 75 characters in a line, so they were tooo long. hi.

Notes on paper
In the SP DX contests I made notes on paper during the contest.
I had great fun with QRP and QRPp in both contests.
So I wanted to catch these special moments, that I experienced,
while using the lowest possible power in these contest QSO's.      (Click to See the Notes)

zondag 27 april 2014

Armando in Oud Amelisweerd

Detail - Chinees behang
In 2012 bezocht ik een tijdelijke tentoonstelling van Armado in Landhuis Oud Amelisweerd. Het Chinees behang op de beletage is een van de bezienswaardigheden van het huis.
Nadien is het landhuis is prachtig gerestaureerd en als museum in gericht.

China aan de Kromme Rijn, de restauratie van het Chinees behang in Oud-Amelisweerd - Klik voor bekijken van de video (28min)

Sinds kort is wordt in Oud Amelisweerd werk van de veelzijdig kunstenaar Armando geëxposeerd.
Armando in het woud is de openingstentoonstelling van MOA | Museum Oud Amelisweerd
Het mooi ingerichte, ruim opgezette museum, is geopend door prinses Beatrix.

Schilderij                Twee litho's 
De verdieping
De verdieping, die zich op de zolder bevindt geeft informatie over Oud Amelisweerd en biedt de mogelijkheid om het geschreven werk van Armando in te zien.
Klik op de foto, om te zien wat ik lees.
Het tijdelijke onderkomen van de Veldkeuken
In achtertuin van het Landhuis is een gezellig, 
tijdelijk onderkomen, voor de Veldkeuken ingericht.
Zoals je ziet is het gezellig druk. 
Ik heb genoten van het museum en de Veldkeuken. 

Klik op de foto's om deze te vergroten.

Achter het groene onderkomen is het begin van de Beeldenlaan zichtbaar. 

Armando in Oud Amelisweerd

Detail - Chinees behang
In 2012 bezocht ik een tijdelijke tentoonstelling van Armado in Landhuis Oud Amelisweerd. Het Chinees behang op de beletage is een van de bezienswaardigheden van het huis.
Nadien is het landhuis is prachtig gerestaureerd en als museum in gericht.

China aan de Kromme Rijn, de restauratie van het Chinees behang in Oud-Amelisweerd - Klik voor bekijken van de video (28min)

Sinds kort is wordt in Oud Amelisweerd werk van de veelzijdig kunstenaar Armando geëxposeerd.
Armando in het woud is de openingstentoonstelling van MOA | Museum Oud Amelisweerd
Het mooi ingerichte, ruim opgezette museum, is geopend door prinses Beatrix.

Schilderij                Twee litho's 
De verdieping
De verdieping, die zich op de zolder bevindt geeft informatie over Oud Amelisweerd en biedt de mogelijkheid om het geschreven werk van Armando in te zien.
Klik op de foto, om te zien wat ik lees.
Het tijdelijke onderkomen van de Veldkeuken
In achtertuin van het Landhuis is een gezellig, 
tijdelijk onderkomen, voor de Veldkeuken ingericht.
Zoals je ziet is het gezellig druk. 
Ik heb genoten van het museum en de Veldkeuken. 

Klik op de foto's om deze te vergroten.

Achter het groene onderkomen is het begin van de Beeldlaan zichtbaar. 

donderdag 24 april 2014

South America in the CQMM DX with my crippeled Inverted Vee

I was looking forward to the CQMM DX contest.
It is a very fine contest with a lot of activity from South America.
I know from earlier contests, that I could still make QSO's with  Europe, Asia and North America with low power, with my crippled antenna.
On Saturday I made 9 QSO's with Europe with a power of 5 watts down to 100 mW.

But I was wondering if I could make a QSO's with South America.

On Sunday afternoon, after I switched to 28 MHz, I heard a station from South America.
At that time, I did not know whether the distance would be more than 5000 miles,
so I decided to use 2.5 W.
I use 2.5 watts and I used a lot of patience to make a QSO with PW2D.
The frequency had to be absolutely clear, so I had to stay cool. hi

With a distance of far more than 2500 miles, this QSO is a more than 1000 Miles per Watt QSO.
Later I heard other stations from South America, but they could not hear me, even with 5 watts. hi
The changes in propagation, are more important than the antenna.
So I say thanks to the fine operators of PW2D.

woensdag 23 april 2014

Lekke antilekband

Het kan dus wel
Het was toch mis
Er klonk een zacht gesis

(Een vingerhoed vol emotie. Maar t'is geen "HighKoe" of 俳句 )

Eerste paasdag
Nieuwsgierig veulentje.
Na het paasontbijt met paasstol met spijs en warme, volkoren  bolletjes, zijn we met de eFiets, even naar plas Middelwaard gefiets.
De hooglanders en de paarden stonden op het toegankelijke deel,
zodat we makkelijk foto's kon maken.
Mijn vrouw schoot dit mooie plaatje van het nieuwsgierige veulen.

Pfffff
Slechts honderd meter op de terugweg, hoorde ik een tikkend geluid, bij het voorwiel. Toen ik stopte zag ik een takje met doorntjes op de band zitten.

Hooglander met de hoeven in het water.
De doorntjes op het loopvlak waren plat en hadden geen schade aangericht.
Maar . . . één van de doorntjes prikte naast het loopvlak,
langs de zijkant, in de zijkant, van de band.
Dit doorntje zat behoorlijk vast en liet zich moezaam verwijderen.
Het was toch mis, er klonk een zacht gesis.
Toen we thuis aankwamen, was de band wel zacht,
maar nog niet leeg.

Daarna ben ik verder gegaan in de CQMM DX contest, tot 1 uur 's nachts. hi

donderdag 17 april 2014

CQMM DX coming up this weekend

Starts: 1200 UTC Saturday
Ends: 2359 UTC Sunday
This weekend there will be much activity
from South America, so join the fun
in the CQMM DX in which you can work every station.

In 2011,  2012  and 2013,
I had great fun with QRP in the CQMM DX contest.
Look at the:  
Blog entry of 2011.    Blog entry 2012     Blog entry 2013

In the CQMM DX contest of 2011, I was suprised by the excellent propagation, which made it possible to work with stations in South America and North America with just 1 W or 2.5 W.

QRP
In the CQMM DX contest a QRP station is recognized by it's exchange.
My exchange will be EUQ meaning continent Europe and QRP.
So as a QRP station, I immediately known that the QSO
is a 2 way QRP QSO when you receive such an exchange.

CQMM DX coming up, this weekend.

Rules 2014
Click for    Rules 2014   or the CQMM DX website

dinsdag 15 april 2014

Ribbon of the Inverted Vee damaged

Last year the top of my Inverted Vee broke.
I fixed the antenna temporarily, so the height of the antenna was reduced with 2 meters.
When I wanted to replace the broken stick by a new one, I noticed that the
300 ohm ribbon was damaged.
Obviously the ribbon had made contact with the rough tiles.
Wear by continually moving over the rough tiles by the wind took its toll.
One wire of the ribbon was completely gone over a length of 5 cm. (2 inches)
So only one wire  of the inverted vee is connected.
Actually my antenna is just one wire of 10 m.

vrijdag 11 april 2014

"WSPR Propagation Analysis" for WSPR spots of G3XBM on 10 m

Roger, G3XBM wrote:
Nothing at all was seen until mid-afternoon and then the band just opened wide!  
K9AN (6505km) last spotted my 2W signal at 2308z, which is after midnight local time and HOURS after the band has normally died out. It had been dark for hours. One wonders if this was F2 or even multi-hop Es? I wonder what was happening on 6m transatlantic?  I must check.
(Spots made on 2014-04-08) Click to visit the article.

I was interested, so I made an WSPR Propagation Analysis of the spots on that day and the days before. The second table shows the last spot at 23:08 UTC, but also reveals the rapid change in propagation around 22:20 UTC.

How to read the table 
In the analysis above, I show the "Calculated Lowest possible Power" in milliwatt and the hours of the day in UTC. The lower the "Calculated Lowest Possible Power", the better the propagation.
To compare the propagation over several days, 
I included 2014-03-28 till 2014-04-08.


Roger is refering to WSPR spots made on 2014-04-08.
At the bottom of the table above.
From 10 UTC to 22 UTC the propagation gets better.
The best propagation occurred in the spot with the red star made on 22:20 UTC.



Even more spectacular
The best propagation on 2014-03-28, at the top of the table, occurred between 13:00 and 15:59 UTC in the aftenoon.
But even more spectacular is the change in propagation in the 3 spots * that were made between 22:00 and 22:22 UTC, that show a very rapid chang in propagation. (See the red arrows)

Thanks to Roger for the interesting experiments with WSPR.

vrijdag 4 april 2014

/QRP

I always use QRP, which is 5 watts or less in CW.  But I never use the tag /QRP.
In contest QSO's in CW, I rather send my call a second time in stead of /QRP.
In the BSCI contest I made a QSO with a station that was not in the contest.
I met a station from Guensey (GU) which is rather rare.

The signal was very strong, so I immediately reduced my power to 50 mW.
The FT-817 was set to 500 mW and I switched in the 10 dB attenuator.
The 10 dB attenuator reduces the power with a factor 10.
So my power was 500 mW diveded by 10 = 50 mW.
I received the usual 599 and I was happy to log MU0RGU.

But when I looked again at the S-meter after the QSO, I was surprised by the signal strenght.
Then I realized that I could have made the QSO with 5 mW.
In a contest it's (almost) impossible to make a second QSO (dupe).
But I decided to give it a try, because this was no contest QSO.
I switched in the 20 dB attenuator and gave my call PA1B/QRP, now using the tag /QRP,
now with just 5 mW.
To increase my luck, I decided to use the tag /QRP for a second QSO.
I thought that if I did not use the /QRP, I could not make the dupe, but MU0GRU came back for me
and I could make the second QSO, now with 5 mW. hi
Thanks to the friendly operator of MU0RGU.

I hope to receive a QSL. Until now I received a card for a QSO with 500 mW from Guensey.