Preparing for a dxpedition to HB0

Last year May I went to LX with PD7YY and PG8M for a weekend to activate 7 different LXFF nature reserves. With the help of the LXFF coordinator we managed to get hold of a nice special call LX44FF.

Perfect conditions @LX in 2017

We were blessed with perfect weather and some Es conditions on 20m. We had a great time that weekend and managed to log far more contacts than we anticipated. We were thinking along the lines of the PACC contest (24h) - 1700 QSO or so - but we ended up with over 2100 QSOs. 

With this experience we of course discussed going on tour again this year. Moving up the DXCC wanted list we considered Bouvet for a moment and had a good look at Scarborough Reef but settled for Liechtenstein.

Picture of the hotel in HB0 - I hope the weather will be like that for us

We will be staying up in the mountains in a nice looking hotel - an upgrade from the caravan we occupied last year - and we will have a bit more time as we are traveling on Friday and Monday. The weather is a big unknown as are the conditions. In general the conditions on HF are poor but that was the case last year as well. We can only hope we will have some Es conditions (bringing a 2m and 6m antenna just in case). Then there is the influence of the mountains that will be a new one for us. Some of the locations we will be active from are on a mountain side. That will undoubtedly influence the signals in some directions.

HB0 is very strict in giving out callsigns so we will not have the benefit we had in LX of a nice short special call. Instead we will be using HB0/PG8M and HB0/PH0NO (switching between those when we move from park to park). Like last time we will be making special awards available for our chasers (details here: http://www.ynomy.nl/2018/03/ynomy-goes-hb0-wwff-expedition.html)

Preparations are ongoing. Several ham radio news sites / letters have been informed and we are checking and completing our gear. We will be taking three radios (one specifically for VHF) with batteries for one day and a whole bunch of different antennas including end fed wires, dipoles, a hexbeam and a VHF yagi with the necessary masts. We will have one mobile amplifier for the HF phone station with its own fat battery.

Now we will have to figure out how to fit all of that and three operators in one car...

First 4m QSO - getting a transverter kit working

Almost a year ago I bought a 4m transverter kit from DF2FQ (XV4-40). I have basic understanding of electronics, acquired in part through the hobby but building a project like this was new to me. With my mechanical engineering background I am more confident in building robust stuff like antennas, masts, supports, baluns, etc. Soldering loads of tiny components on a board seemed challenging. 

However the level of documentation provided by DF2FQ and some motivating words by PG8M - who was already using the transverter - pushed me to the point that I ordered the kit. When I received the package I must admit it looked daunting. 

Lots of parts..

..and rather tiny

I started building the kit sometime in August last year. I tried to work as meticulous as I could (a challenge when you are as impatient as I am). When I had completed the kit and ran the first tests, I found that I received 70 Mhz signals with the radio tuned to 29Mhz. Hurray!

However, when I tried to transmit, the transverter appeared to be dead as a dodo. No LED, no signal. A very disappointing result. I did some tests (as far my knowledge goes) and could not find the cause of the failure. So the kit went back in the box it was shipped in. Time for other projects.

The Es season is rather good this year and I have enjoyed the effects on 6m but 4m was open a lot of times as well. I really had to get back to the abandoned transverter project. PG8M had already kindly offered to help me months ago and today I took him up on his offer. We went through the error checking process step by step, finding and fixing four major issues. It turned out I had made two soldering errors and two of the smd resistors were faulty. Whatever happened to these resistors I really don't know.

PG8M trying to locate the next error

The good news is that we ended up with a transverter that delivered up to 35W on 4m with 5W drive on 10m. 

There was no one around to do an on air test so back home I hooked up the transverter and put my tri-band yagi on a pole @2m high in the garden. PG8M was QRV 30km away with his 4 ele beam pointing in my direction. That is when I made my first 4m QSO.

DK7ZB tri-band beam in action twice this week

It is a bit late in the Es season but I am sure I will get back to this band in the future. The next thing I need is an antenna I can set up quickly at home in case of any high MUF situations. For 6m I use an end fed wire that I can attach to a pole that I push through the attic window. For 4m I am going to try a slim jim vertical. More on that later.

YNOMY LX-pedition planned for May

In preparation of our expedition to BS7 or P5 sometime in the future, YNOMY DX group has planned its first group expedition. So far we have all been active from various places outside of PA individually. As a contest team we have shown to be able to work together for a couple of years already with rather acceptable results.

So now we are off to our first team expedition on May 20 and 21. We chose LX as a convenient location and we chose WWFF as the focus of our operation. Working together with the LXFF coordinator, Mill LX1CC, we have made some draft plans and acquired a special callsign to be used for this expedition: LX44FF.

Our goal is to work as many chasers as we can from Saturday morning till Sunday evening using multiple stations both on phone and CW on whatever band is open between 80m - 2m. We will also issue an award to the most active chasers - check out: LX44FF Award

Really looking forward to a whole weekend of LXFF. Let's hope conditions are acceptable or better.