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Long : 4.30664 E (004° 18' 24'' E)                              
Lat : 52.05249 N (52° 03' 09'' N)

QTH locator : JO22db
ITU Region 1
ITU Zone: 27
CQ Zone: 14
DXCC zone: 263

send me an email     Write2Me Gastenboek 

The Netherlands
Les Pays Bas
Die Niederlande
Los Países Bajos
I Paesi Bassi




Welcome to the PD3TRU & PC4Y webpage



Map showing my location in The Netherlands (Europe)


Glossary of terms of the above Solar-Terrestrial Data. In brief: High SFI (> 100) and low K (< 4) are providing for good HF DX conditions.

Number of countries (entities) worked

My career started as a wireless officer. I have done that from 1965 - 1974, serving on board freighters and passenger liners like the s/s Statendam and the (old) s/s Nieuw Amsterdam. So 'wireless' is rather familiar.

I did my N exam in 2011. My call sign then was PD3TRU. The first QSO with my legacy and vintage YAESU FT-7 was on april 23rd 2011 at 09:15 UTC with F8CSL. A memorable day to reach the middle of France with only 10 Watts in the antenna. It was my first QSO after I stopped being a 'sparks' 37 years ago. A true adrenaline boost. On March 5th 2014 I successfully passed my F exam. From here on my call sign is PC4Y. I have chosen PC4Y for a reason: my first ship I worked on as an independent R/O was the KNSM m/v ATTIS with call sign PCVY.  For nostalgia reasons I just added one dot to the V and made it a 4 in CW language. The button below gives access to the F study I did with the help of the VERON ham radio club and the very useful help from PA0WV.

F-exam issues 

Some four or five spots in the above map are incorrect, like the one in Alaska and the one in the Gulf of Guinea. Apparently these guys have their coordinates incorrect in their profile. It didn't help to adjust their locator coordinates afterwards.

Ask Dave

Clicking on the above button gives access to a series of interesting
HAM Radio topics and answers from Dave Kesler KE0OG

My logbook is updated in HamRadioDeLuxe with daily updates to LoTW,, eQSL, and QRZCQ. LoTW clearly gives the most QSL's but no QSL cards. eQSL gives nice electronic QSL cards and is giving disappointing results w.r.t. QSL's. Some figures: On 1 March 2017 I have made 5169 QSO's from both the PD3TRU and PC4Y call signs. I received 1692 QSL's from LoTW (32,7%), 1465 eQSL cards (28,4%) and 966 confirmed QSO's from (18%).

Some of my latest activities during the past months.Latest days now on top as per request from many visitors

Weekend 13 and 14 June 2020. Joined the GACW (SA) contest this weekend. Had hoped to make more SA QSO's, but I ended up making only two QSO's with Brazil. In total only 35 QSO's, mostly in Europe. Only in the evening of Saturday I heard SA stations. It was nice nonetheless.

Sunday 7 June 2020. Only made 38 QSO's during the STAYHOME contest as available time again was limited. Uploaded the Cabrillo file successfully.

Saturday 6 June 2020. Joined the STAYHOME contest at 12:00 zulu. Worked the 10, 15 and 20 meter bands in CW. It is not very busy, but nice nonetheless. Am using the Allasian log in N1MM as one needs to add his or her age. Do get the remark though with every entry, I should add only Asian stations. Well, we will see what the Cabrillo file will look like tomorrow.

Friday 22 May 2020. I must admit I am fascinated by the WSPR technology. Today I 'worked' the 10 meter band (28 MHz) on 28,124,600 MHz with 1 watt and had the result - as shown below -  in only half an hour.

Thursday 21 May 2020. In the late evening I worked FY5FY in French Guyana in the 30 meter band!  Great opening, but also quite an antenna ☺ I passed the 140 countries worked and also passed the 7,500 QSO's.

And the REF contest 2020 results came in:

Place Indicatif QSO Multi Scorefinal Catégorie Réduction

394    PC4Y     26      20     520          SOAB         8,28%

Tuesday 19 May 2020. The WSJT-X programme for e.g. FT8 also includes the WSPR (whisper) mode which I gave a try yesterday and also on Wednesday 20 May 2020.

Using 5 Watt in the 50 MHz band I was heard by Great Britain, Italy, Canary Islands, France and Belarus. What a clever development of modulation and programming.

Saturday 16 May 2020. So I have had my first experiences with FT8. Nice programme. I see lots of DX calls passing by in my 'band activity' window. But so far I have only been able to QSO European stations. So no real DX so far. I understand I should work with (very) low power. But for the QSO's I have been able to make I used 30 watt PEP, which as far as I understand the manual is actually not done. Well......I will keep on trying to make calls with << 10 watt. It is quite busy on that FT8 frequency in the 20 meter band (14.074 MHz) so this mode apparently has attracted quite a few hams. I don't think it will become my favourite. All you do is a few clicks on the mouse. I am pleased to see it is working in my environment (shack) and I find it a fantastic technology, but that is it probably. It may be fun for DX hunting though, but in my case even that didn't work out so well yet Below one of the QSL cards confirming the FT8 QSO.

Below: The same QSO, but with the correct RST data (-14).

Thursday 14 May 2020. Eighty years ago Rotterdam was heavily bombed by the Germans. But the rebuild turned out great.

Today I have spent some time on getting the digital modes to work on my system. With Ham Radio de Luxe I use the DM780 sub programme for the digital modes and a few years ago I had it all working. Then I got my self a new PC and reinstalled HRdLuxe. Over the years HRdLuxe had quite a few updates and upgrades and every time I tried the digital modes to work it somehow just didn't do the job and I left it. It is not that I am a great enthusiast for digital modes, but it just feels good to have it available. I use the Signalink USB as the additional soundcard and put my FT-450 in USB mode and tune in on the 20 meter band around 14.070 MHz and up. I see the waterfall, hear (see) some stations calling CQ but they don't hear me, whilst I see a carrier output. Somewhere deep in my memory I recall my transceiver should be in both USB and DATA mode. But when I select the DATA mode, the transceiver jumps to LSB. Time for the manual. And there I see I should change a setting in the menu called D-type. Selecting D-type I see it is in RTTY mode where it should be in USER-U mode. And then oh wonder I had an immediate QSO in PSK-31. Don't know how the setting apparently was changed. I must have done it myself I guess because no one else has access to my set. Well...all is well that ends well. Also made some macro changes in the messages just to make it more personal. It feels good to be back in digital, although I still will mostly be working in CW.

Then I installed JS8CALL and configured it for my transceiver. JS8CALL might eventually be used by DARES, so I want to familiarize myself with it. I think I have it working, but have not been able to make a QSO yet. Still need to figure out where the received messages appear.

And now that I seem to be in digital modes all of a sudden, I also installed WSJT-X for e.g. FT8 mode and made some QSO's. Logged one QSO with Turkey in the HRD logbook and hence into LotW, QRZ and eQSL. Must learn about all the ins and outs still.

Friday 1 May 2020. Quite a few stations with special call signs to remember 75 years of freedom after the second world war. And also quite a few stations using the STAYHOME suffix to remember the very limited freedom we now have under these bizarre circumstances.

Thursday 30 April 2020. Had a very brief 40 meter CW QSO with 4U2STAYHOME. A call originating from the U.N. warning us to stay home and not to get infected by the infamous Corona virus. Under these circumstances it is great to have the radio hobby.

Weekend 18 / 19 April 2020. Joined the CQMMDX contest every now and then between other activities. Mostly in the 20 meter band. Worked stations in EU, NA, AS, AF and SA. Uploaded the log and was added to the list.

Tuesday 17 March 2020. The EUR/ASIA contest results are in:

Bonus points







Wednesday 4 March 2020. I am using the MFJ-925 IntelliTuner for HF. One issue is the fact that there is no power-on LED. My shack is always under power; either from the K-PO power supply or from one of the batteries through the West Mountain Radio PG40S power gate. When I have finished to work one of the bands where I needed the MFJ-925 tuner, I close down the shack by turning of the transceiver and the K-PO power supply and often forget the MFJ-925 tuner as there is no power-on LED. The power button position for on or off has only a very subtle difference; almost unnoticeable. So I need a modification where a LED shows power-on. If not I will again have a flat battery as I experienced already a few times, in cases where I am away from home for a couple of days for instance. Now that seems very simple; drill a small hole in the front panel, insert a LED and connect it somehow to the power switch in a fashion where the LED lights up when the switch is on. Should not be too difficult. However opening up de MFJ-925 the inside of the front panel is difficult to reach without disconnecting the vertical PCB. That PCB seems somewhat vulnerable - I think - and may be damaged when removed. The flat connection cable from that PCB for example cannot be easily disconnected. So my mission failed and I sadly closed the tuner. I am interested to hear if anyone has experienced the same phenomenon.

Tuesday 3 March 2020. My Yaesu FT-7 is still installed and can be used immediately, however I noticed a significant instability; when I have used the transmitter (key down) the frequency of the receiver is changed dramatically and I was told that my transmit frequency was instable as well. So I guess this must be a power issue. I opened up the unit and firstly checked if all the vertically placed PCB's were still properly mounted. I removed these one by one and put them back one by one. I turned on the FT-7: no signal! the S meter though was in the far right corner. I wiggled the various PCB's trying to find one that was causing the problem. No luck. So I now have an FT-7 that isn't working at all. It must be one of those days I guess. Working myself through the manual didn't help either. Work in progress.

Weekend 29 February and 1 March 2020. The UBA contest! I participated every now and then. Few hours on Saturday and one hour and a half on Sunday. 66 QSO's but none with a Belgian station :-(  Not even in the 80 or 160 meter bands in the evening. So no additional multipliers. At 12:00 zulu (one hour before de UBA ends) I uploaded the Cabrillo file. It was a nice contest with many participants.

Confirmed by UBA:

You sent a mail to the UBA Contest Committee with your log for UBA DX CW 2020. 

We have received your log = OK
We have analyzed the format = OK

Saturday 29 February 2020. Joined the last hour of the Eurasia championship contest where the QSO-exchange needed is the full grid square (locator). Mostly worked East European stations in the 20 meter band and a few Italian stations in the 40 meter band. Used the N1MM logging programme.

Total number of QSO in your log is 22, Including 0 QSO with errors, Valid QSO - 22
Band  QSOs Dupes Points Mults Вonus
160      0     0      0     0
80       0     0      0     0
40       5     0   4962     2
20      17     0  39687     7
15       0     0      0     0
10       0     0      0     0
Total   22     0  44649     9   20
Claimed score is 581841 points

Friday 28 February 2020. The UK/EI results are in:

In the EU ranking I ended on position number 376 out of 447. In the overall ranking it was # 518 out of 658 and in the low power category I ended on position 290 out of 387. Not bad given the time I participated.

Weekend 22/23 February 2020. UK/EI contest from 12:00 till 12:00 UTC. I only joined a few moments and made 49 QSO's. Conditions on Saturday were limited. I had hoped to work more UK/EI stations in the 40/80 meter bands.

PC4Y DX 49 Sun Feb 23 11:57:50 GMT 2020

But it was fun nevertheless. It is always nice to notice the system setup is still fine despite the gale force 9 we experienced this weekend with sweeping antenna's.

Saturday 22 February 2020.

The 2019 SAC contest results:

-Band--Raw QSOs--Valid QSOs--Points----Mults-
  80m        4           4        4        4
  40m       26          25       25       19
  20m       61          59       59       23
  15m       12          12       12        8
  10m        1           1        1        1
Totals     104         101      101       55

Final Score = 5555

Confirmed QSOs :100  96,2%
Unique Calls   :0    0,0%
Busted Calls   :1    1,0%
Not In Log     :0    0,0%
Dupes          :1    1,0%
Exchange Error :1    1,0%
Report Error   :0    0,0%
Wrong Band     :0    0,0%
Non-Contest    :0    0,0%
Manual Check   :0    0,0%
So my ranking was # 137 out of 310 in the category single operator CW all
bands low power. Multipliers 55, total score 5.555

Weekend 8/9 February 2020. PACC weekend.

Callsign: PC4Y

Band     Qso    Cancelled  Dup  Point  Penalty  Mult   Score
160M       6            0    0      6        0     3
 80M       6            0    0      6        0     3
 40M      28            0    0     28        0    18
 20M      73            0    2     71        0    16
 15M       0            0    0      0        0     0
 10M       0            0    0      0        0     0
         113            0    2    111        0    40   4440

Only joined in on Saturday for a few hours. A nice result though. And the first time I made the CQ instead of me only responding to a CQ. The results are absolutely much better when one sends the CQ as opposed to responding to a CQ, so I learned this weekend. However you cannot decide which station to contact, which can reflect on the number of multipliers you get. And it is a bit difficult to find the right frequency though as you cannot hear other Dutch stations in the 20 and 40 meter bands (too close to me). So you often have the chance to tumble over an already busy other station. And as I work non-assisted I don't use the DX cluster to find that out.

Weekend 25/26 January 2020. Joined the French REF contest. Nice to notice many French stations used manual CW instead of computerized CW. Gives room for the personal touch. Uploaded the Cabrillo file. I only joined for two hours or so and made QSO's in the 160, 80 and 40 meter bands.

Thursday 23 January 2020. The results of the LZ DX contest came in:

Nr Call QSO Score
Total Conf Points Mult Total
365 PC4Y 34 34 193 20 3860

#365 out of 440 given the time I have participated; not bad. And a nice certificate:

Weekend 18/19 January 2020. Joined the HA-DX contest on Saturday afternoon en Sunday morning. Al together probably 2 hours. Called it a day after 50 QSO's in the 20,40,80 and 160 meter bands. It was nice again. Lots of stations in the air.

Every now and then I get the question: 'what is the fun of a contest ?' 'It is often not much more then a quick exchange of some data and then on to the next one'. Well to be honest, this is what I thought in the beginning as well. But let me try to summarize the fun:

  1. There is a lot more activity in the air than usual. If you ever doubt if there are still hams around: listen to the radio during a contest.
  2. It is an art to distinguish the various stations from one another when they are tumbling over each other. They cannot help it really because when you participate in a contest and pick a frequency say in the 20 meter band, you cannot hear your fellow hams in the same region in that band.
  3. It is a nice addition to your logbook. In one weekend or one day you can easily add a hundred (or a thousand) QSO's in your log and receive many eQSL cards (and/or hard copies).
  4. You hear stations you have never worked before.
  5. It is nice to notice so many stations actually hear you! It proves your setup is working fine.
  6. Often a plaque is provided that can decorate your shack.
  7. A multi operator contest in e.g. a club station is adding to the fun as you meet fellow hams.

Of course there are also some reasons why NOT to join the contest:

  1. Lack of time. A contest often runs a whole weekend (48 hours) or a whole day (24 hours). If you cannot join the contest during a couple or hours, you are missing some of the fun, like # stations worked or # increasing exchange number. This is the main reason for me NOT to join a given contest.
  2. Lack of experience. Well this is not really an excuse as you can only build up experience by doing it.
  3. Contests that require a serial number (exchange number). It can be de-motivating to hear a station giving a serial number up in the hundreds, where you just fired up your system and starts with 001.
  4. Bad conditions, like an Asian contest or Oceanic contest, where the stations can hardly be heard (in my region).
  5. Nobody hears you. Can be due to poor conditions or your own system setup. Remember: the antenna is much more important than the transmit power.

In addition there is a major choice one has to make: do you wish to send out the CQ, or do you wish to respond to the CQ's. Of course you can also decide to do both. But the operating practise differs somewhat between the two options. The option to respond to a CQ is far more relaxed than the option to send the CQ as many stations will then try to make contact with you, often causing lots of QRM. If you want to go for the highest scores you'd better send out the CQ yourself. The advantage to send out the CQ yourself is you can remain on the same frequency or have to change frequency only a few times, whereas if you respond to a CQ you will have to work the whole band in every band.

It would be interesting to hear other reactions. So don't hesitate to contact me:

The ARISS tracker

Real-time position Space Station

Real time tracker

The following frequencies are currently used for Amateur Radio ISS contacts (QSOs):    Voice and SSTV Downlink: 145.800 (Worldwide)
    Voice Uplink: 144.490 for ITU Regions 2 and 3 (The Americas, and the Pacific and Southern Asia)
    Voice Uplink: 145.200 for ITU Region 1 (Europe, Russia and Africa)
    VHF Packet Uplink and Downlink: 145.825 (Worldwide)
    UHF Packet Uplink and Downlink: 437.550
    UHF/VHF Repeater Uplink: 437.80
    UHF/VHF Repeater Downlink: 145.80

Meet the Expedition 62 Crew

Get to know the space station

  Some pictures of my shack

Radioshack information: Registration number at Dutch Administration: 6629107.
Above pictures are from May 2011 onwards.

G5RV junior, best suitable for 160, 80, 40, 30, 20, 17, 15, 12 and 10 meter bands with an external ATU and ATU extender, sloping dipole. Highest point apporox. 10 meters. Lowest point: 4 meters.
Diamond V-2000 vertical for VHF/UHF (6 m, 2 m and 70 cm) usage. Height of the antenna: approx. 10 meters.
Diamond X30N VHF/UHF (2 meter and 70 centimeter) antenna for field work.
MFJ-1768 Yagi for the 2 meter and 70 cm bands, also for field work.
MFJ1022, active indoor antenna for receive only.

ATU and other auxilliary equipment:
MFJ 925 autotuner, MFJ 914 auto tuner extender.
Tigertronics SignaLInk USB to connect the audio from FT-450 to PC and vice versa. For digi modes.
SWR meter
TNC-X modem for Winlink usage
SignaLink USB for Digi modes
Dummy HF antenna
K-PO power unit
13.8 Volt distribution panel  MFJ-1128
West Mountain Radio PWRgate PG40S, allowing automatic battery backup when regular power fails.
90Ah GEL battery system with USB, Neutrik and Anderson Powerpole connectors.

Ham Radio de Luxe with DM780 software for transceiver control (CAT), logging and digimodes version
N1MM for contests
Winlink 2000
RMS (Radio Mail Server)

Transceiver (RIG):
max. output: 100 Watt
All amateur bands, incl WARC and (modified for) all maritime bands
CW, SSB, PSK31 and FM on 28 MHz and 50 MHz.

output: 5 Watt
VHF/UHF, 144 MHZ and 430 MHz amateur bands.

hand held for 2 meter maritime, 2 meter amateur and 70 cm amateur bands.
Output 8 Watt
FM and FM Radio bands.

YAESU FT-7900 dualband (2m and 70 cm) transceiver
modes: FM and AM.
Output 50 Watts (2 meter) and 45 Watt (70 cm)
Attached to my TNC-X packet modem to work with Winlink (Paclink) thru the PI8HGL RMS on 144.850 MHz. Try me on

vintage YAESU FT-7
max. output: 10 Watt
bands: 80, 40, 20, 15 and 10 meters
CW, USB and LSB only.

Extra receiver:
Vintage SAILOR R-104
MW, LW and SW 80 and 160 meter bands
AM, A1, A2 and USB only.

Straight CW keys (Junker and Kent), a Begali paddle and a HAM Gadgets Master Keyer MK-1 complete the ability to use Morse during the QSO's. Click here for the CQ serenade

HomeI am a member of the PI4HAL association and work the on board radio-station mostly one day per week, using a Yaesu FT-897, an ICOM-271, ICOM-765, a Skanti and/or a Yaesu FT-1000. The station is on board the former cruise ship s/s Rotterdam and is now a hotel/museum ship operated by WestCord hotels.We have a team of about 10 operators and 5 technicians. We are still looking for more operators as it is our ultimate goal to operate the shack every day of the week. So if you are interested please don't hesitate to visit the PI4HAL site (click on the logo at the left) and send an email. Or you can send me an e-mail. HERE you get access to the PI4HAL newsletters (in Dutch).

I also joined the DARES foundation in 2011 and have already done quite a few field tests. I am part of a so called SIGCO team.

Free counters!






Why is a ship called she ? A ship is called a "she'' because there is always a great deal of bustle around her. There is usually a gang of men about, she has a waist and stays. It takes a lot of paint to keep her good looking. It is not the initial expense that breaks you, it is the upkeep. She can be all decked out. It takes an experienced man to handle her correctly. Without a man at the wheel, she is absolutely uncontrollable. She shows her topsides, hides her bottom and, when coming into port, always heads for the buoys. When you see her lying at the berth, you are proud of her like she is your attractive girlfriend.

          me in the shack     | Gerard in the museum | Wil and Karel at the antenna's

Announcement from Agentschap Telecom:

On 3 December 2015 at 00:00 hrs the 60 meter band became available for Dutch hams.

As per 1 April 2017 significant limitations have become effective though.


15 watt e.i.r.p.




So the usage of the band is now limited to between 5,351.5 MHz and 5,366.5 MHz with a max power of 15 Watt EIRP. We used to have the band from 5,350 MHz to 5,450 MHz with 100 Watt PEP. So I don't think this band is still very attractive for DX. The full legislation can be read HERE (in Dutch). Want to know how much EIRP is in relation to PEP? HERE you can find the calculator.

On Tuesday 24 November 2015 I saw Andorra station C37N had confirmed our QSO in LoTW completing my 100 DX count in my DXCC Award tally from ARRL LoTW. So I have applied for 'the Certificate'. See below.

New LoTW QSLs LoTW QSLs in Process DXCC Credits Awarded Total
Mixed 0 0 100 100 100

At the beginning of this year 2015 I had hoped to achieve this goal this year and so I did even well before the end of the year. Of course most of the credit goes to the hams who have confirmed our QSO's in LoTW. Thanks YL's and OM's.

My chances of getting a 200 DXCC credit Award are small as I have worked most of the DX's I can reach with my current station set up. But who knows? Writing 1 September 2019, I have 116 DXCC's though as a few QSO's from quite some time ago have recently been confirmed, like Bermuda, Cuba, Albania, Ceuta and Melilla, and San Marino. So I am still adding to my list. Like the one from ITU HQ.

In addition to the 100 DX list, the latest additions are:

DXCC Entity Mixed

 The following Dutch call signs are also listed in the ARRL tally for 100 DXes worked.


On the top of the list is 4X4DK who has worked 394 DX entities! I wonder though how that can be as ARRL says they have listed 'only' 340 DX entities. Wim PA0WV explained me how: in time quite a few entities have disappeared (like e.g. the DDR) and others emerged.


See above video to learn more about DX-ing.

Lesson to learn and use Morse code:


Much to my surprise I received a 'worked 100 grid squares' award on my old call sign: PD3TRU, which I have not been using since March 2014. The big black dot in the lower left corner is in fact a golden 'Certified QRZ authentic' stamp that my scanner wasn't able to reproduce apparently J.

Image of QSL card with burning ship ms Prinsendam

Click on this picture about the engine room fire on board the m/s Prinsendam/PJTA and the rescue of well over 500 passengers and crew on 4 October 1980 in the stormy Gulf of Alaska. It still took a week for the ship to sink beyond salvage. Listen to the MP3 audio file with the SOS transmissions starting with the transmission of 12 long dashes of 4 seconds each (twice) to activate the Automatic Alarm Systems which ships had installed those days giving an alarming chime in both the radio room and the bridge during times the R/O was off duty. See also this article. I remember to have sailed under captain Wabeke when he was a first officer on the s/s Nieuw Amsterdam/PGGF (/PJRS when under the Antillian flag). There is now also a new book, written by Matthieu Oosterwijk:

PC4Y as a rookie R/O on board s/s Nieuw Amsterdam (1969)

Click HERE for ancient Morse transmissions from various coastal stations

All about decibels:


CW Forever


  • You must have at times,
    Thought into the past,
    Where some things go out
    While others last
    What comes to my mind is
    The old Morse code,
    That has weathered the storms
    From any abode.
  • To talk with ones fingers
    Is surely an art,
    Of any info you
    Care to impart,
    In most conditions
    The signals get through,
    While the same about phone
    Is simply not true.
  • Those dits and dahs
    Cut through the trash,
    Of near by noise or
    Lightning's crash.
    To the sensitive ears
    Of the hams receiver,
    Who records this data
    With ardent fever.
  • He knows he's doing
    Something unique,
    (in such poor conditions,
    That's quite a feat)
    To roger the message
    That came off the air,
    These brass pounders
    Sure do have that flair
  • They say Morse ops
    Are a dying breed,
    But don't despair,
    There's always that need,
    That when conditions get rough
    for the new automation,
    Be rest assured,
    There'll be need for your station.
  • CW is dying?
    Believe it never,
    This mode will be 'round
    Forever and ever.
    But one thing is sure,
    What we really need,
    Is to relay our knowledge
    To the younger breed.
  • To carry the torch,
    Long after we're gone,
    To send Morse code
    Through the air like a song.
    When at last,
    Silent keys pull that lever,
    We can rest in peace,
    It's CW forever.




Written by:
Jim Hatherley, WA1TBY (SK)

A promo video about HAM radio. Made in 2014 by VERON. In Dutch. But pictures speak for themselves.