Friday, April 9, 2021

#60m Mozambique worked

 Another new one on the 60m band worked. I feel very lucky these days. I was unable to work new DXCC for weeks and now within a few days I worked 2 new DXCC on the 60m band. Now, I've worked Mozambique before on other bands of course. It always reminds me about the first time I worked Mozambique on the airwaves. It was in 1989 and there was a war going on in Mozambique. Some south african 11m DXers did dare to cross the border anyway and activated a rare DXCC at that time. They eventually had to flee for the mortar fire after a few days and leave their antennas behind. You can imagine I found that very impressive and still cherish the QSL card and story in one of my 11m DX QSL collection books. 

Unfortunately the RU DXpedition has chosen the normal FT8 frequency to operate F/H. The problem only is that HAM operators from the United Kingdom are not allowed to transmit above 1000Hz. No chance for them to make the QSO. Of course some very frustrated operators jammed the signal from C92RU and I do understand their actions. It would be better for a DXpedtion to transmit on 5356KHz or 5356,5KHz dail.

Wednesday, April 7, 2021

#60m Colombia worked

 I did see a few stations from Colombia on 60m before. But they are always on when I'm not... Lately I missed A25RU and TO1K on 60m. TO1K was very strong at times but I was unable to get my signal through. Well you can't have everything. At least I worked Colombia last night for another 60m new one...

I notice it is getting very difficult to work new ones on 60m now. I got a whole list of "would be new ones" stations but rarely see them on 60m, At this date I only worked 4 new ones this year...

Tuesday, April 6, 2021

Every HAM should know how to e-mail with radio!

  I think every HAM should know how to send e-mail with his radiostation. Not via the internet but via the airwaves. Just in case the internet is down, in case of an emergency. Or in case you're in an area without internet, when on a hike, on vacation...

Lately I saw some interesting videos made by OH8STN Julian about this subject. But it is not really clear how to do it. And there are several possebilities you can use. You can use a "one has it all package" but you can also use external software to speed up the process. I've experimented with e-mail over radio with the use of PSKmail in 2010 , I got it working but it was a very complicated road the setup everything. I lost interest since this should be easy so you can set it up in a emergency situation. It is 11 years later now, time to take a look again.

I did hear about Winlink a long time ago and I downloaded the package once but never got to experiment with it. I was actually afraid it would cost me at least the time I used to setup PSKmail. But I was wrong. I got it all working with my IC-7300 within 20 minutes.

A interesting video about reliable e-mail over HF can be seen.

There are many interesting videos about this topic. And even OH8STN did some videos that are very interesting to get an idea. However, setting it up is not really clear in these videos. You have to experiment. I had problems to get my IC-7300 to transmit, but after some experimenting with several settings I was finally able to send out my e-mail over HF.

Just for my own archive and for others to learn from I made some screenshots from my setup for the slower ARDOP and the faster VARA HF. The ARDOP TNC software modem is built in Winlink, so you have a "all in one package".

Setup Soundcard for IC-7300

Setup CAT/PTT control for IC-7300

However, if you like to have a faster connection you really need VARA HF. It is a separate package which you can use for free with limits. If you pay $69 you can get a registery key and have no limits on the connection. Personally I experienced the free version is already much faster compared to ARDOP and so far fast enough for me.

VARA HF setup, you don't need a reg key to work with it

VARA HF soundcard setup for IC-7300

VARA HF CAT/PTT control for IC-7300

I suggest to watch the video on how to setup Winlink itself. I didn't have any problems with that. 
By the way, you get your own e-mail adres within the winlink system which is your 

VARA HF winlink session with LA1J on 60m. Click on it to view a larger picture.

To upload/receive your e-mail you need to connect to a relay station. With the channel selector you can find what would be the best station for up/downloading. You can view the stations location on a map.

There is also a possebility to exchange e-mail peer-to-peer. So you don't need a relay station. The only problem is that you need to be on the same frequency at the same time and know each others callsign to connect. And of course you need propagation.... but when the internet and/or grid is down and if there are less relay stations on air you can still get a message reliable to another station over HF.

It seems that e-mail over VHF/UHF FM is also a possebility. If interested you might search for it on google or youtube.

Tuesday, March 30, 2021

#CQWW WPX SSB 2021 review

Event: CQWW WPX SSB contest 2021
Section: Low SOAB
Logger: N1MM+ 
Station: Icom IC-7300
Antenna 1: 160m sloper
Antenna 2: 10m LFA @14m
Antenna 3: Multiband vertical @16m
Antenna 4: 2x20m inverted-V doublet

The yearly WPX SSB contest is over again. One of the highlights of the year for me. If you look for rare DX you can find it in this contest. And I took the opportunity to hunt DX instead of concentrating on the amount of QSOs. No new DXCC were worked but I guess I managed to work a few new band ones. 

Click on the map to enlarge.

Although propagation was not the best very nice DX was worked. One of the highlights certainly was working ZM4T on both 40m and 20m. Unfortunately 10m didn't open, the only QSO I had on that band was with PA6AA who was kind of a local station managed by Bernard PB7Z.

Most interesting DX per band this year:

80m: NV9L, WW1X (USA)
40m: ZM4T (New Zealand), WP4X (Puerto Rico), TI7W (Costa Rica), FM5BH (Martinique), WW1X (USA), VE9CB (Canada), PJ2T (Curacao)
20m: UP7L (Kazakhstan), 9K9A (Kuwait), HZ1TL (Saudi Arabia), KL7RA (Alaska), ZM4T (New Zealand), T6A (Afghanistan), VE9CB (Canada), WW1X (USA), 9M2TDX (West Malaysia), EX0M (Kyrgyzstan), JH4UYB (Japan), PJ4DX (Bonaire), 5Z4VJ (Kenya), PY4JW (Brazil), FM8QR (Martinique), P40A (Aruba), TI7W (Costa Rica), FG4ST (Guadeloupe).
15m: UP2L (Kazakhstan), FR4NT (Reunion Isl.), ZS6TVB (RSA), ZD7BG (St.Helena), A71AM (Qatar), A60A (UAE), LO5D (Argentina), E2A (Thailand), YC2CPQ (Indonesia), P45A (Aruba)

I mention that KL7RA was real 59 over here, just incredible! I've heard many other DX but couldn't reach everything. I remember calling for a long time on 40m to JH4UYB, he had a excellent signal but he didn't hear me. Also 3E3E from Panama was 59 on 20m but I was unable to have a QSO with him. You can't have it all of course...

I didn't hear anything from VK (Australia). Strange, because I'm shure there were contesters on from down under. But propagation was not there. Hopefully they will appear on 10m in a few years...

Like always, I had fun. Although I spend far too much time on my hobby last weekend. Not to the amusement of the is always difficult to find a balance. This will always be a challenge....
Total time spend in the contest was 27 hours...

Friday, March 26, 2021

Is FT8 destroying ham radio?

 N0UN wrote on his blog:

"In my opinion FT8 is like a self-driving car.  No operating skills required.  How much fun is sitting in a car you’re not driving?  You get my point?"

And asked politely to write something about it on everyones own social media. So I do...

I understand Wayne's concern. I do understand he (and others) did put a lot of effort in their stations. Did put a lot of money in it. Did practise and earned, learned and worked hard to get a lot of DX and DX skills through the years. I respect that...but...

Not everyone is capable of building a great station. Not everyone is willing to learn the DX skills. And still they enjoy DX these days. Since FT8 (and before that JT65 and JT9) is a great feature for that. Yes, even if part of it is automatic many do enjoy it a lot. Finally being able to work DX with a simple wire antenna and 5, 10, 25 or 100W power. You see, I think Wayne's opinion is a little selfish, he speaks for himself and a few others that hold on to the old SSB and CW communications only. If you take a look on the "bands" you will see that the majority of ham radio is playing FT8 now. Even DXpeditions like A25RU and VK9CE are rarely heard on SSB these days. Is that a bad thing? Yes, for those that don't like FT8 it is a very bad thing. It probabely means that this is almost the end of their ham radio hobby. But for those that haven't got the ability to have large antennas, expensive radio equipment and or good DX skills it is a great thing they have finally a chance to work those rare stations.

Why are DXpeditions using that much FT8 these days. Well, I remember a presentation from a DXpedition member about 3D2EU. He told that at some moments they would call endless on CW and SSB without much reponse. Switching to FT8 gave them the pile-ups they searched for. You will hear this from other DXpeditions as well. Remember, DXpeditions want to make as many contacts and provide as many a new DXCC as possible no matter what. If that takes FT8 these days it should be a priority to have a good sensitive (wideband) FT8 station running preferable on as many bands for as long as possible. Therefore I think the initiative from the Rebel DX group "We will be testing some our new ideas to operate 5 different stations on FT8 (FOX & HUND) at the same time by 1 operator" is promising.

We can learn from the past. When SSB took over the most used CW and AM after WW2. Many of the old operators did tell the "newcomers" they wouldn't be real hamradio operators if they didn't know CW. SSB was for those without skills, what would be the fun of it? Oh, yes they were still communicating.....five by nine my friend, 73 (you see, no difference from the FT8 protocol). With FT8 on HF we look ahead into the future, What has to come? Some hamradio operators already took the opportunity to write about the future including me. I can imagine remote controlled FT8 robot stations that are dropped at rare DXCC working on solarpower for months or even years. Just like the hamradio sats in space... Of course these would be QRP stations, so it would be a challenge to work them after all. Wouldn't that be fun? At least I would have fun. Others will find it stupid, I'm shure of that. 

Finally I would like to point out some benefits of FT8:

- Ideal for fast propagation research.

- One signal only takes 50Hz of spectrum

- It is more sensitive compared to CW

- QRM and noise doesn't have much impact, except if a QRM signal is exactly on the FT8 frequency

- It is easy to use and easy to work with remote

- It doesn't annoy the rest of the family if operating is, for instance,  from the living room

- It is relatively easy to work DX stations

- You can work with low power and still have a good signal when propagation is right.

- It is possible to automate everything (although some of this is controversial)

I will not point out the disadvantages since everyone seems to know them...

FT8 is not the only thing in hamradio. It is populair right now. But I'm shure most operators do like to have a decent QSO with SSB or CW after all and use FT8 just as an extra mode with extra opportunities. After all, HF DXing is not the only thing in our hobby. There are so many other topics and interests, everyone has to decide what is most fun and what satisfies most. If you don't like FT8 you just don't join and do some SSB and or CW instead. You probabely like to take a look at the True Blue DX marathon to promote some more "human" modes. And for those that really like to do both FT8 and SSB/CW you can still join the marathon to have some fun!

Don't forget for those that really like SSB (that's me as well) this weekend there is the CQ WW WPX SSB contest. 48 hours of SSB fun with lots of DX. If you don't like contests, just work the DX of interest. Isn't that fun!

If you like to comment on this blog, you're welcome. It doesn't have to be on your own social media...

Tuesday, March 23, 2021

Imax2000 destruction

The Imax2000 is originally a fiberglass CB antenna which is used by many radioamateurs on HF worldwide. The original Imax2000 can be used from 17-10m with a tuner. Find more info on:

The Imax2000 is eventually replaced by the max2000 which is shortened and only for the 10m band. I used a defective Imax2000 as a holder for a copperwire covered by coppertape which was fed with a CG3000 autotuner for a few years. Till a couple of weeks ago it did finally break during a storm. I decided to dismantle the antenna to get rid of it. I really don't know how they did dismantle the matching coil without breaking it. I found it impossible. If this antenna breaks it is not repairable from my point of view. But if you look at the pictures on the sites from the links above there has to be a way to dismantle things in one piece. Of course mine was years old, everything was corroded and there was water inside the bottom of the antenna. Here are some pictures I took during the process:

I especially had problems removing the PL connector at the bottom due to corrosion. Well, at least I had some fun taking it apart to see what is in it. The last picture is not a pretty sight. Everything went into the garbage after all...even the PL connector was damaged and could not be used again.

Thursday, March 18, 2021

#60m Bahamas worked

 Did see C6AJB spotted on the cluster a few times last week but not yet received him myself. This time he was on early and with strong signals...

Tnx Steven...

Tuesday, March 16, 2021

Wow! VK on 160m worked!

 Still can't believe this. My simple 160m sloper antenna, remember. Just my tower and a piece of wire connected with a piece of coax. Simple antenna, simply 100W from my IC-7300. Have lower noise on the low bands compared to other stations in villages and towns, my only advantage. But I received VK5PW Peter from south Australia anyway. I mean....160m band....+15000km, to me that is magic, real radio magic.

It was just his morning greyline that lifted the signal. And I guess Peter has very low noise as well or a special separate receive antenna. Yes, I made a QSO with Japan as well, but have done that before. This is something totally different and for many radio amateurs in Europe unreachable because of the noise and antenna restrictions. 

And yes, this wouldn't be possible without the use of a digital mode like FT8. It was just a lucky shot and I don't think this will ever happen again. Just like my contact on 6m with 5W and a vertical to Puerto Rico in 2014. Wow, real radio magic...

Thursday, March 11, 2021

#60m Curacao worked

 With the whole covid-19 situation there are not many DXpeditions on air. What a difference with the start of last year. But at least I finally managed to contact PJ2/DK5ON Andy from Curacao. It took me some days trying. The problem was that Andy's signal was so loud everyone could hear (see) him and so the pile-up was huge. But yesterday evening he was quite early with low signals at first. This time he saw my signal and the QSO was made.

When I was looking for PJ2/DK5ON a few days ago I suddenly saw A71AE again on air. Since I was not in his online log I presumed I have been working a pirate station before. So, I worked him again and this time I appeared in his online log.

Wednesday, March 10, 2021

QSL from sunny Fiji

As far as I know Tony does no digital QSL. A way to confirm the contact is to buy the QSL. It is against my policy. But I really wanted the QSL since it is quite special. Tony went through difficult times losing his son by accident, very sad. However I'm shure this hobby gives him a lot of distraction from the whole situation. Then the Covid-19 situation prevented postal service from shipping the QSL cards. I remember it took me a long time till finally the propagation was good enough to make a QSO with Tony after receiving him many times before. I think I tried for almost a year to get into the log. After waiting for almost another year the QSL finally arrived...the 60m band shure gave me a lot of interesting DX I never worked before on any other band.

Update 12-03-2021: After checking my log it is verified Tony does confirm via LOTW.

Thursday, March 4, 2021

Paraset instruction manual discovery

  Last month a e-mail arrived from someone that a interest in the paraset instruction manual I have from PA0DR Dirk. According to him it is the only known paraset manual. Probabely included in a package with a paraset for the resistance. Normally parasets were dropped with skilled radio operators that didn't need a manual. Inside the manual, that was typed by Dirk on his own writing paper, there was something that looks like the original manual typed on very thin folded rice paper. The ink was already fading on that paper en parts are unreadable. That's why Dirk probabely made his own copy. Since this manual seems to be so rare I had the study it closer, was it a original WW2 document? Who typed this on rice paper, and why did this person use the name paracette instead of paraset? Was it a paraset that came through the french resistance, as most of the paraset were dropped in France. No, that couldn't be as all radios in this area were smuggled via the Swedish route. I wrote Gerard PA3BCB, who gave me all the memorabilia. He told me that in at time of the war english was not yet such a common language as today. The use of french words was more common at that time and so it could be that paraset degenerated to paracette. Why the rice paper? Well it is light, easy to burn, eat or at least easily to get rid of since it was a very interesting document for the enemy. Why on earth did Dirk keep it anyway? Probabely because he realized this was interesting for his hamradio hobby after the war? I can't imagine he kept it for historical reasons.....

However, I discovered something else....

Something was written on the paper. 2 times a number 5.2441,"TLK de JCB" and "Toen onze mop een mopje was". Was Dirk testing a pencil? Why did he write this on this manual? I let my wife read this to confirm what was written there. It then occurs to me that it could be some kind of code for the resistance to hide something. "Toen onze mop een mopje was" is the first sentence of a child poem which was made in 1865, very well known in the Netherlands. I began searching for the sentence on the internet and quickly it was revealed it is indeed a kind of code used particular by the dutch resistance to communicate with the english. If you like to know how it was used, you can find a description here:

Through that article I was again pointed to the report from Ton van Schendel who was the chief marconist from the dutch resistance OD (Orde Dienst). I did read the article in the past but sometimes you don't remember details that later seem to be important.

" "JOOP" (Rustema) onderhield in zijn kwaliteit van "VBO" het contact met "PRINS" en bracht aan den laatsten alle te coderen en te decoderen telegrammen. De hoeveelheid werd soms "PRINS" te machtig en daarom verzocht hij af en toe "JOOP" hem te willen assisteren. Het gevolg hiervan was, dat we al spoedig in het bezit waren van het versje, dat bij de omzetting moest worden gebezigd: "Toen onze mop een mopje was enz enz". Er ontbrak nu alleen nog het geheime getal en ik verzocht "JOOP" hier zoo mogelijk achter te komen. Na dagen zijn kans te hebben afgewacht, gelukte het tenslotte "JOOP" dit getal te bemachtigen. "


"JOOP" (Dirk Rustema) maintained contact with "PRINS" (Harm Koning) in his quality of "VBO" (Liaison officer) and brought all the telegrams to be coded and decoded to the latter. The quantity was sometimes too powerful for "PRINS" and so he occasionally requested "JOOP" to assist him. As a result, we soon obtained the poem that was to be used in the conversion: "Toen onze mop een mopje was, etc., etc.". Now only the secret number was missing and I asked "JOOP" to find out if possible. After days of waiting for his chance, "JOOP" finally managed to get this number.

According to the cryptomuseum website this secret number would consist of 5 numbers. 52441 could be that number?? It is written on the paper with pencil and not with ink, like it was written before or after he wrote "Toen onze mop een mopje was". What left is the "TLK de JCB" sign. They didn't use this to contact england since that call would be "HLD de OZX". Gerard initially thinks "TLK" stands for "Telegrafie Leraar Koning" (telegraphy teacher Koning), but "JCB"?? If anyone has a idea about this please leave a comment or send me an e-mail.

Now I was asking myself why did Dirk need a instruction for the paraset since the transmitters they used were probabely no parasets. But Ton van Schendel wrote in his own story that they definitely had a paraset in use that traveled through the country to transmit from about 20 different locations.

"Het gevolg hiervan was, dat wij nu altijd de zend-ontvanger van Engeland (Paraset) door het land moesten meesjouwen, met de gevaren daaraan verbonden. Aangezien evenwel een vrouw in dat opzicht minder kwetsbaar bleek dan een man, hebben wij meerdere malen in die kritieke maandenvan de bereidwilligheid van eenige echtegenooten gebruik moeten maken."


As a result, we now always had to carry England's transceiver (Paraset) through the country, with all the dangers involved. However, since a woman proved less vulnerable than a man in that regard, we have had to take advantage of the willingness of some partners several times during those critical months.

I'm certain that Dirk did use a paraset at home at some time...did he get the instruction from this paraset because Ton didn't need it anymore? Or did he....well....take it without permission because it is a interesting document?

Of course with a low power transceiver you need a good antenna. Actually I'm surprised they didn't use magnetic loops. Although it could be that nobody knew they could work so well and they are very portable. It could be the knowledge wasn't there or there was simply nothing around to build one. It is interesting to read how they solved the antenna challenges:

In die dagen was het antenne vraagstuk een groot probleem, overal moesten immers de antennes worden afgebroken en zonder antenne kan je nu eenmaal niet met Engeland werken. Het ging niet overal zoo eenvoudig als bij Rustema in Middelstum, die bij onzen komst eenvoudig een bamboestok met een willekeurig eind draad er aan in zijn tuin pootte waarop het prima ging. Het centrum en het Westland vroegen daarentegen om een heel goede antenne. Bij boerderijen was dat niet zoo moeilijk, de bliksemafleider werd eenvoudig onderbroken en we hadden een goede antenne en aarde ter onzer beschikking. In Joure, waar de boerderij een dergelijke installatie niet bezat, werd keurig en onzichtbaar een draad langs de gevel van het huis gelegd; in een hoog gebouw, zooals dat van de CJMV in Den Haag voldeed ook heel goed een antenne van een halve golflengte, gespannen tussen de balken op den zolder. Minder gemakkelijk ging het bij woonhuizen in het centrum en midden in het land. Het was dikwijls tobben, doch we hebben er ons kunnen doorslaan.


In those days the antenna issue was a big problem, after all the antennas had to be dismantled everywhere and without an antenna you simply cannot work with England. It was not as easy everywhere as with Rustema in Middelstum, who upon our arrival simply planted a bamboo stick with a random length wire in his garden where it worked fine. The center and Westland of the country, on the other hand, demanded a very good antenna. At farms this was not so difficult, the lightning rod was simply interrupted and we had a good antenna and earth at our disposal. In Joure, where the farm did not have such an installation, a wire was neatly and invisibly laid along the facade of the house; in a high-rise building, such as that of the CJMV in The Hague, an antenna of half a wavelength, stretched between the beams in the attic, also worked very well. It was less easy for houses in the center and the middle of the country. It was often worrying, but we managed to get through it.

Then another passage made clear that there were possible other parasets around. It could be that the paracette instruction was among one of these:

Eenige tijd later deelde Engeland aan den Chef O.D. en aan "ZWAANTJE" mede dat er twee volledige apparaten onderweg waren "ETON III" en "ETON IV" en dat deze uitsluitend voor den O.D. bestemd waren. Deze apparaten hebben wij uit Delfzijl ontvangen. Waar elk toestel onder meer beschikte over vier kristallen, konden we nu bij onze uitzendingen steeds van een andere frequentie gebruik maken.


Some time later England communicated to the Chief O.D. and to "ZWAANTJE" that two complete devices were underway "ETON III" and "ETON IV" and that these were exclusively for the O.D. were intended. We received these devices from Delfzijl. Where each device had, among other things, four crystals, we could now always use a different frequency for our broadcasts.

I've seen some pictures from complete parasets, all with 4 crystals. So my guess is that those "ETON" devices were actually parasets. I'm not shure though, just a wild guess...till now I cannot find anything about these transceivers on the internet.

Ton made a special notice about something that happened during transmissions from Dirk his house:

Zoo herinner ik mij ook een uitzending bij Rustema in Middelstum. Het ging, zooals steeds bij "JOOP" prachtig, doch midden in het laatste vrij groote bericht stegen plotseling groote rookwolken uit de het plaatspanning apparaat op. De transformator stond op het punt te verbranden. Het gelukte ons evenwel, door steeds na enkele geseinde groepen, de zender even uit te schakelen, de uitzending tot een goed einde te brengen, al konden wij het plaatspanning apparaat wel voor goed afschrijven. De operator aan de overzijde zal wel niet begrepen hebben, wat er bij ons aan de hand was.


I also remember a broadcast at Rustema in Middelstum. It went beautifully, as always with "JOOP", but in the middle of the last fairly large message suddenly large clouds of smoke rose from the power supply device. The transformer was about to burn. However, by always switching off the transmitter after a few groups, we succeeded in completing the broadcast, although we were able to write off the power supply device for good. The operator on the other side may not have understood what was going on with us.

So, what do you think. Do I have a original WW2 document that belongs in a museum? Or is it made after the war? I believe there is no other paraset instruction known, this is one of a kind, very special. Did the british secret intelligence had someone that wrote this instruction or did someone else? Since english was not a common language at that time it is probabely certain that it is written by an english person...

Any comments are welcome!

Reading material (not always in english, but can be translated with google):

Wednesday, March 3, 2021

80m FST4 sked with AE5X and more 160m QSOs/DX


Consulting VOACAP the best shortpath on 80m between Texas,USA and northern Netherlands is at 6 UTC. So, John AE5X and I made a sked on the new FST4/30s digital mode. I received John well, even saw strong traces in the waterfall and heard the audio. John didn't see my signal at all unfortunately.  Actually if I look at the comparisation chart from DB6LL we should have tried Q65/30s which is at least 3 dB better. 

Before setting up FST4 on 80m I decided to try on 160m FT8 again. And again I was spotted by DP0GVN with a excellent -8dB signal. You should almost think this is very common, but it isn't. The 160m band is only open for a few weeks on Antarctica. The horizontal loops are not hanging on poles by the way, they are just down on the ice. Information came from Felix DP1POL as given on his presentation in 2019. Besides that I worked a few new ones on 160m again.

I left the lonely AE5X FST4 spot from John on the map...

Sunday, February 28, 2021

Some 160m DX

 My XYL asked when I intend to remove the wire that slopes from the tower into our new trees. Yes, I should remove it...but first I want to make some more DX with this very simple 160m band sloper.

Worked some very nice stations which I not worked before on 160m last evening. One of the 4X1UF/QRP (Israel), GU8FBO (Guernsey Isl.) and EA8AR (Canary Isl.). The surprise was that I've been heard on Antarctica.

I guess my XYL needs to have patience....

Nice QSL card received from ON7DY, tnx Marcel!

Friday, February 26, 2021

First 60m ATNO in 2021 - A71AE Qatar

 Have been looking for this station for a while. However he is not on 60m very often. When he is, he's most wanted of course. And with the amount of stations on 60m these days working DX like this is extremely difficult. A first try, I was almost confident he managed to make it.

Unfortunately A71AE was covered by the signal from UR6QV who was on exact the same frequency. But since a slot later he gave CQ I assumed he had been transmitting a 73. Anyway, I decided to ask Mubarak by e-mail. He responded quickly that I was not in the log and should give it another try.

After trying for what looks like a 100 times:

I finally made it. The first new one on 60m this year. Of course I'm happy though checking his clublog upload I'm still not in the log. Mysteriously because to me the screenshot shows enough evidence. It was not a pirate station hopefully!!! I saw lots of others making a QSO, if no one is in the log then it definitely is a pirate...

Update 10-03-2021:

I managed to work A71AE again and this time I appear in his log. I probabely worked a pirate station before?

Thursday, February 25, 2021

(Guest post DB6LL) WSJT-X and JTDX sharing logs

 The case: Why should you use both programs on digimode? Well, WSJT-X contains other modes like the new FST. Q65 and MSK, JTDX contains T10 and other features. So sometimes you really need another package to work another digimode or use other features. Since many HAMs use both WSJT-X and JTDX making contacts it would be nice to see what you worked (B4, DXCC etc.) in both software packages. Of course you can make a copy of wsjtx_log.adi and paste it in both WSJT-X/JTDX directory every day. But it is possible to automate something like this so WSJT-X and JTDX share the same ADIF log. DB6LL Hartmut wrote about this for a German language digimode FB page. I asked him if I could use this for my blog and he responded by translate the whole document in English to share it with you all. Isn't that great!

Before you mess up completely I advice to not try this when you don't know much about computers, directories and DOS commands. Please make a back-up from your wsjtx_adi files before trying to modify things.

A shared LOG file for WSJT-X and JTDX under Windows

There is a way to share wsjt_log.adi in Windows (7, 8.1 and 10) WSJT-X and JTDXi. This makes it easier to work alternately with WSJT-X and JTDX and both programmes and also JTAlert show all callsigns e.g. with B4 that you have already worked. This trick works with the command mklink on the command line level and is not quite trivial (keyword: hard link type symlink). I have to assume a certain amount of computer knowledge so that this explanation does not go on forever. 

And as always: following these instructions is at your own risk!

<username> is the Windows user name on your system. In my case, I log in as DB6LL, so there is a directory with the name DB6LL on my PC:

By the way, it can't hurt to make a back-up of the two wsjtx_log-adi files before following this guide. You will find this file in the respective directories:




First, open the "Run" window with the Windows key & R. Then enter the command cmd.exe in the "Open" line and press ctrl+shift+Enter and answer yes when windows is asking you if it is allright. You will run the command as admin now.

A window called "Windows Command Prompt" opens. 

The cursor flashes in the line C:\WINDOWS\system32

Enter the command cd c:\users\<username>\appdata\local\jtdx\ and Enter.

You are now in the JTDX directory where, among other things, the logbook file wsjtx_log-adi is located.

With the command del C:\users\<username>\appdata\local\wsjt-x\wsjtx_log.adi you first delete the log file of WSJT-X in the target directory. (Of course this is when you want to use your JTDX wsjtx_log.adi as master).

Now you create a new

mklink /H C:\users\<username> \appdata\local\wsjt-x\wsjtx_log.adi wsjtx_log.adi

a HardLink of the file wsjtx_log.adi from the JTDX directory to the WSJT-X directory. It is then one and the same file with one name, which now appears to be in two places.

If you read the message in the CMD window: Hardlink created for... in the CMD window, the command has been executed correctly and you can see the JDTX log file in the WSJT-X directory.

In future, both programmes will write the logged stations to the same log file and display the same information (B4) in colours.

Note: The add-on programme JTAlert analyses the contacts from your main logbook and the information does not have to match the stations in wsjtx_log.adi, as it reports all contacts in all modes....

Good luck and in future always have a correct overview of which station you already have in the log.

vy73 Hartmut, DB6LL

(edited by Bas, PE4BAS)

I've tested the above trick myself and it works very well. 

Tuesday, February 23, 2021

Some 80m DX

 Despite contacting Japan on 160m and 40m I never had a QSO on 80m. Till today that is...

I tried very hard for over a hour but none from Japan was getting back to my call. Not to my CQ and not when I tried to call the Japanese stations I received. Till JA5EXW finally came back.

When searching in his log I see I worked him on 160m and 6m as well.

Working DX on 80m FT8 is not easy on the usual 3573KHz. It is simply too crowded. And unfortunately some stations really don't know what I mean when calling CQ JA. Really, I had to crawl trough numerous european contacts before I could call CQ JA again and even when in QSO with JA5EXW there was someone calling on my TX frequency. I really don't know why?

I like 60m much more as a ultimate DX band. At least you can find a empty spot in the waterfall which is almost impossible on the "normal" bands like 80,40 and 20m. However, I'll do my best to pick some more DX on 80m these days since at this moment I don't see much interesting DX on 60m although I keep an eye on the DX cluster and monitor once and a while...

Monday, February 22, 2021

S-match - Palstar AT1KM with 1:1 balun efficiency/balance comparisation

  First of all, don't expect a very scientific comparisation here. I haven't got calibrated equipment. It is just a practical comparisation between the S-match antennatuner I previously converted from a MFJ-948 and the Palstar AT1KM with homemade 1:1 current balun for the low bands. Personally I think it is not a fair comparisation since the components in the S-match are inferior compared to the components used in the Palstar. However, I was just curious...

Measurement was made with 50W input. Output current was measured with my homemade RF current meter.

             Palstar                            S-Match

Band%Left%Right %Left%Right
2080      70

Not surprisingly the S-match does not perform as good as the Palstar with 1:1 balun. I think this is because of the used components in the tuners. The Palstar has bigger capacitors and a huge variable coil. The S-match has small capacitors with a switchable coil, this coil is made of wire that is only 1/4 of the size the Palstar coil is made of. Besides that the S-match has a lot of additional wiring because it is a converted T-match and components are not in the ideal place. However, the S-match is advertised as doing a great job in balancing, in this it does a good job....but the Palstar T-match design with 1:1 balun outside the tuner does at least the same job in balancing.

My conclusion is that if you want to use a doublet as your antenna and think you need a special (balanced) tuner for it to feed the open line this is simply not necessary. If you have a simple T-match tuner or even a automatic tuner that has enough capacity, with a good 1:1 current balun outside the tuner it will do the job.

Past experiments:

Tuesday, February 16, 2021

More maps...


Some people asked me how to make the map I showed in the previous post. That's easy, I use this site:

The disadvantage unfortunately is that is will not display all contacts since the locators are unknown. Now, how on earth did I make these maps in this post? Well, it's made with the service from N9MS Mike. He made a great tool for licensed HAMradio operators and extracts the individual locators from the info found on To register you need to be registered on as well and have a valid e-mail adres on your QRZ account. You can find the service here:

When you upload a ADIF file you will also get an e-mail which shows you which stations are on the map and which do not. Stations that don't have a acoount on QRZ will not be showed. On my maps that are made with the ADIF log from the PACC there are 280 stations, 20 are not found on I think because I logged them wrong. I suspect that I will have a very high error rate this year...

Anyway, the maps look very nice and it gives a nice overview. If you make use of the QSOmap service please consider to do a small donation to keep it online.

Sunday, February 14, 2021

PACC 2021 contest review

Event: PACC 2021
Section: QRP mixed
Logger: N1MM+ 
Station: Icom IC-7300 at 5% (5W)
Antenna 1: 160m sloper
Antenna 2: 10m LFA @14m
Antenna 3: Multiband vertical @16m
Antenna 4: 2x20m inverted-V doublet

It's my own descision to go QRP in this contest. I think it is the most difficult section. It takes a lot from the operator to make any QSOs and many stations will not hear you which at times is very annoying and frustrating. You'll find most stations have a lot of signal but bad receive. Actually my experience is that the stations that are the loudest have the worst receive of all. 

What amazed me this time was that I worked DX on SSB that I though was not possible with the minimum propagation these days. Propagation was so different from last year as well. I started late saturday afternoon, experience tells me this contest is a slow starter. Big surprise was a S9 signal from ZD7FT (St. Helena Island) on 10m SSB. The only signal on the band. He didn't do contesting but I had to work him with QRP....and I did, I even got a S7 report from Peter. Excellent! 20m closed early unfortunately, even before it went dark. 40m was not good either in the evening. I hoped for 80m SSB but there was a lot of QRM around. 160m was crowded last year, but this year I couldn't hear much. To compensate I had to do CW which is not my favorite but for QRP it does the job. However, I'm a very bad CW operator and I have to apologise to all stations that worked me, I probabely have a 20% reduction in the end because of wrong calls in the log or wrong contest exchange numbers on CW. Blame me, I've tried but I really need more practice. Well I decided to run on SSB at night on 80m in the end, against all odds. Someone did spot me and I had a small pile-up after all, not like with 100W but very good for 5W. A big surprise when K8UR came back to me....I mean 80m SSB QRP, imagine! Seems to be he's a 80m DXer and has a 7 element yagi for 80m!! In my last post VE9KK Mike wished me good luck in the contest at the comment. I replied I wish I could reach Canada but realised that would almost impossible with QRP. However, when switching to 40m CW at night I worked VE9ML and later on 80m CW I worked VE9AA, both from the VE9 area. those were certainly the highlights of the whole contest.

Not all stations I worked appear on the map since locators are unknown. So this result is approximately. I've not been really fanatic and tried to be with my family at times as well. Only 15,5 hours contest was enough for me. It was fun and that was most important.

PA3OES Andre who is living about 70km south from me did send me a nice video from how he did receive me on 10m CW with a Elecraft K3S. Andre does have a good receive....I did hear many other "local" stations on 10m and other bands as close as 5km from my QTH but they didn't hear me. However CW is of course "easier" as SSB...

Friday, February 12, 2021

Dutch PACC contest 2021 this weekend

Almost forgot but this weekend there is famous Dutch PACC contest. Multipliers are the dutch provences. You can find info on this site: 

For a english version you have to click the last blue button on top of that site. 

Actually the last few years my goal was to win the low power SSB section. I was planning to contest weeks before and made studies of propagation and erected extra antennas. I won that section last year. What's left? I will probabely never participate in a high power section and don't master CW good enough to take part in the CW section. So, what's left is the QRP section. I did participate in this section before in 2015 (117 QSOs) and 2016 (245 QSOs). The QRP section is a mixed section which makes it very difficult for those that are not really into CW like me. However, my CW skills are better as years ago and so is my equipment. I will use the IC-7300 with power setting to 5% (5W). I think I will do mostly S&P . Don't expect big signals from me on 80m like other years. I'll try to do my best but will not be too fanatic as my intention is not to win this section, participating is enough for me.