Thursday, May 3, 2012

Testing a new antenna

My first HF yagi

After talking to Paul, MM0ZBH at the beginning of this year I became interested in a yagi he uses in a portable setup. I cannot put up a large antenna at my home QTH, so I am frequently working /P with my tried and trusted end fed verticals.

A 4 element yagi however is in a different league. The yagi Paul uses is a 4 element lightweight (6kg) yagi originally built for 11m. However, with minor changes it is very usable on 10m as well. Paul told me about the results he got with the antenna and that it was easy to use /P. I was intrigued as my yagi reference is a 10 element 2m yagi that I have used in the past. It is still lying in my garage but I would not consider it a very portable antenna (bulky even disassembled, heavy and takes quite a bit of time to assemble).

After a disappointing /P afternoon this week when I did not manage to break any of the pileups that I encountered, I decided to buy the yagi. The yagi is known as Sirio SY27-4 and sells for around 130 euro's.

I picked it up today, assembled it (very simple) and did a little testing using a couple of fibre glass extension tubes of my Spieth mast to support the yagi (they actually carried the yagi quite well to my surprise).
I was careful not to push my luck so the mast was not too high. I guess the antenna was at a little under half a wave length (<5m / <15ft) high.
Sirio SY27-4 on Spieth extensions

I configured the antenna (elements and gamma match) roughly according to Paul's specs and found that the SWR was flat over 28.3 - 28.5 Mhz (not even one segment on my FT857 SWR meter). So bandwidth is not an issue with this antenna. You can find more data about the antenna performance on my projects page.

The disappointment came when I found out that 10m had already gone dead. In the phone segment I could hear one whisper and white noise, all below S1. On the PSK frequency (28.120) I heard a faint signal and on the cluster I saw some activity in South America. I decided to hook up my MicroHam interface and I turned the beam towards SA.

After calling a few times I was greeted by an Ukrainian OM who was /MM in the South Atlantic sea, south of St Helena (8700km) and by a CX OM (11.500km). Both gave me 599.
This is promising as they are not my every day type of contact and the band was really in a terrible shape.

Now I have to find some /P operating time at the right moment when 10m is open.
I think it will be fun.

73,
Lars / PH0NO/P

Friday, April 27, 2012

PAFF 019 - Veluwezoom

Terrible conditions on the third visit
This morning I was over at Veluwezoom for the third time. A beautiful park just around the corner where I live. I had found a good operating spot on a hill with trees to one side and a nice view to the other side.

View from the operating spot
The weather was quite alright with clouds and sun. The same cannot be said about the radio conditions. The high bands were almost closed (some whispers) and 20m and 40m were lousy with low signal levels and QSB.

Apart from the conditions the timing might also play a role in the lower activity level. Normally I am active at the end of the day. This time I was active at the end of the morning.

Sunny spells @ PAFF-019

On 20m I worked 75 stations in just under 90 minutes. On 40m I worked only a handful of OMs. QSB was very strong and after 15 minutes I decided to call it a day.

In total I worked 85 stations from 28 DXCCs in 100 minutes of radio time. Maximum QRB was set by an OM from RV9 to 5000km. Only Luciano, I5FLN came by on both bands.

Thanks for stopping by.
Lars, PH0NO/P

Saturday, April 21, 2012

Activating PAFF-013 - Dwingelderveld

So-so conditions on the higher bands

This afternoon I had some 2 hours of time available to activate one of the most wanted PAFFs. I had already selected a nice location for the /P operation at Dwingelderveld. However it turned out that one of the roads through the nature park was closed off. That made it impossible to reach my desired location.

Dwingelderveld WFF PAFF-013


Luckily I had also preselected a few other spots at another part of the park. The downside of these spots is that they are located in the woods.

So after a delay I was again facing a challenge to set up the antenna (especially the extended mast of 15m for the 40m wire antenna) without getting stuck in the trees.

I forgot to bring the 15m band wire and 10m was almost dead (a couple of weak signals), so I started on 17m. There was some activity on this band but not many OMs found their way to my station. After 4 contacts and a lot of calling I decided to go down to 20m. I changed the antenna to my multi 10-20-40m wire to enable to go down to 40m later without the need to change the antenna again.

Antenna in between the trees at PAFF-013
On 20m conditions were so-so with strong QSB. DX was sparse. Still I worked 62 stations in about 45 minutes. On 40m there was also quite some QSB with reasonable signal levels. The advantage being a lower level of QRM than usual. I worked 43 stations in 35 minutes.

So in 90 minutes of radio time I worked 109 stations from 28 DXCCs. Maximum QRB was set by an OM from RV9 to 5000km. Luciano I5FLN and Albert S58AL came by on two bands.
This time 30% of all stations logged were new callsigns to me.

Thanks all for calling in.
Lars, PH0NO/P

Saturday, March 31, 2012

Busy activation of PAFF-039

With some time on my hands I headed over to the most wanted PAFF (as all of them have been activated at least once I compiled a list of the activity level based on info by Igor EW4DX - the updated list is on this page).

PAFF-039 Fochteloërveen - North Netherlands


I found an entrance route into the park quite quickly and set up my multiband wire for 10-20-40m. This saves me time not having to take down the antenna for the different bands. With only 2 hours of time on my hands I did not want to waste any time changing bands. This meant giving up on 15 or 17m.

My extended Spieth mast set up @ PAFF-039
I started at 13:30 UTC. 10m turned out to be rather dead. The same could not be said about the 20m band.
Luciano, I5FLN was as usual the first one to call in. Propagation to Italy was not very good at that time, it improved a lot however in the next hour.

For one hour I stayed on the same frequency working 84 stations - not a quiet moment. Local conditions weren't all too strong but there was a lot of DX - 17 out of the 84, especially from the east. There were three OMs from Japan calling in with signal levels comparable to a lot of European stations. This happened to me only once before - at PAFF-014. From the west activity was not that strong with only the two familiar North-American OMs K1QS and VE5XU calling in.

When the activity seemed to slow down I switched over to 40m to enable short skip contacts. Luciano was the first one again. QRM was manageable this time while signals were rather good - a well balanced propagation. In just under one hour I worked 71 stations.

In total I worked 155 stations from 36 DXCCs in just under 2 hours of radio time. Max QRB was set by a JA7 OM to 9100km.
Manuel EA2DT, Luciano I5FLN and Narciso IZ1JMN came by on both bands. Of all contacts about 30% were new callsigns to me.

Thanks all for calling in & being patient in the pile up!
Lars, PH0NO/P

Saturday, March 17, 2012

Last new PAFF: Huitebuersterbûtenpolder

Very very poor conditions in Friesland
The last unactivated PAFF area inside the Netherlands is located in the northern province of Friesland. The people speak a different language here, hence the extraordinary name of the area (I can't pronounce it).

Normally this area is out of reach for me, but today I had an appointment in the north not too far from Friesland. I decided to use my available time in the afternoon to try and find a spot in the nature park and complete the PAFF range.

View towards the sea - a pity that it was hazy today
The area consists of low land stretching into the sea, behind a high dike. It is quite an unusual view. I was not very fortunate with the weather as it was a bit hazy - so my view was limited.

I had ordered a replacement for my Spieth mast (refer to my story of the last activation why) but that had not arrived yet so my mast was too short for 40m. Luckily I found an operating spot where I could set up my antenna sloping towards a fence. The antenna was not very high (feeding point less than 1 meter off the ground) but SWR was perfect on 20m and 40m.

No additional damages this time but I did have a challenge in the conditions. They were absolutely lousy. My propagation widget showed poor conditions on all HF bands - and it was right. This meant that I had to call a lot and had trouble to copy stations (vice versa).

In about 90 minutes of air time I worked 89 stations from 24 DXCCs. Maximum QRB was set by an OM from RV9 to 4800km - this was on 40m. On 20m the max QRB was only 3500km into 4Z.
Luciano I5FLN and Sergey RA3PCI made the trip on both bands.

The last challenge this time was my voice that was hoarse due to a cold but it kept on working all the way.

Thanks all for calling in.
Lars, PH0NO/P

Tuesday, March 13, 2012

Second time PAFF-018 - Utrechtse Heuvelrug

Damaged pole: one band re-activation
With just a little time on my hands while passing PAFF-018 I decided to do a quick re-activation. I found a reasonable spot quite quickly. It was however surrounded by trees.

Zuylensteinse Bos - part of Utrechtse Heuvelrug


For some reason I opted to start with the multiband wire antenna (10-20-40). This meant extending my antenna pole to about 15m. Ofcourse I ended up in the trees with this hard to handle pole. This happend to me once before, losing a piece of wire but this time it was worse: one of the fiber glass segments of my Spieth mast broke. I was left with a considerably shorter pole and therefore did not have the opportunity to activate 40m this time.

One damaged fiber glass segment...


Conditions on 20m were so-so and unsteady. Luciano I5FLN reported both a 55 and a 59+10 in 15 minutes time. Moving around on 20m (avoiding QRM and QRN) I was active for about 70 minutes. In this time I was greeted by 72 OMs from 22 DXCCs. Max QRB was set by a UA9 OM to 5000km.

Quite surprisingly I was greeted by two OMs from Morocco. I haven't heard a station from CN before during a WFF activation and today I heard two...

Thanks all for calling in.
Lars, PH0NO/P 

Saturday, March 3, 2012

Activating PAFF-034 Leende

Short activation of a new PAFF area

A customer appointment in the morning brought me close to Leende. The nature park borders on Belgium in an area I don't visit normally. With another appointment later in the afternoon I had only about 90 minutes for the activation but PAFF-034 really needed to be activated in my opinion.



The park is quite large and has a few open patches that are convenient for a portable radio station. The northern part of the park is partily accessible by car.

With the limited time available I decided to erect the wire antenna only once. This meant choosing my multi band end fed wire for 10-20-40m and attaching it to my extended Spieth mast of 15m. Luckily there was only a light breeze.

Cloudy but dry weather @ PAFF-034
At noon UTC 10m was rather dead so I started on 20m. After sending a spot to the cluster Luciano I5FLN was (as usual) the first one I could greet. The first 30 minutes on 20m were really busy with more than 60 calls logged.  I had to change frequency once due to QRM. Something that normally happens on 40m.

After 45 minutes the activity level had dropped and I was half way my available time so I changed to 40m. After the first call I was already greeted by Luciano. His spot on the cluster initiated another pileup that lasted 30 minutes. 10 minutes later activity died down so I changed back to 20m to log a few last calls before breaking up and heading north. The QRM level on 40m was very acceptable this time, allowing me to operate on one and the same frequency all the time.

In the 80 minutes of activity (lost about 10 minutes finding and changing frequencies) I logged 118 calls from 28 DXCCs. This includes 7 stations outside EU. It was too early for N-America so all DX is from the east (UA9 and UN). Max QRB was set by a RV9 station on 5000km distance.

The time of this activation is different from most of my other activations (earlier). This must be the reason why more than one third of all logged calls is from OMs I have not met before.

Thanks all for calling in.
Lars, PH0NO/P