G-0407 Lodmoor Country Park POTA

After a few weeks break of regular PoTA Activations, I was very excited to go out for my planned activation at Lodmoor Country Park near Weymouth.

I had completed my prep the evening before, checking that my batteries and accessories were all packed into the Alex loopham pack bag. In the morning I found that XYL Monica had even made me a pack lunch for my day out, which was much needed later in the day. An early start got me out with walking my dog Sweety at 5AM just as the sun came up, I then headed off to Weymouth, APRS beacon sending out packets as I did so, my full route wasnt covered today which seemed unusual, I did hear APRS packets on arrival in Weymouth.

APRS Recetion dropped off around Bere Regus

I chose to go to Beach Car Park, as this was situated conveniently near to the park facilities, its always useful to have a WC available, also the park itself look great and venturing beyond the comfort of the Bongo to get into the park would be nice.

The Beach Car Park is open 24/7, and even free between 18:00 and 08:00, although the signage says ‘no overnight sleeping’. Interestingly I noticed that Motorhomes are banned outright (probably for this reason), and where as my Mazda Bongo is classified as a Campervan would still be limited to a ‘4 hour’ max visit – noticed this of course after I had paid £10 for the full day, and whilst I think during the less busy seasons its unlikely to be enforced, I can imagine during peak times its something to be of mindful of.

Before settling into the Bongo and setting up, I popped to the WC, even at this early hour the facilities are open and clean and tidy, nice to see. The park had great maps to help navigate around. There is alot to do here for a family, such as Sealife centre, gokarts, mini-golf, pitch and putt and Sandwolrd – maybe its the kind of place where the youngsters could be enjoy the activities whilst allowing others to be operating the radio, win all round !

Once back in the Bongo I was quickly on the air thanks to the fantastic Alex Loop Antenna – whilst I have other antennas, the ease and speed in which I can get this setup really makes it hard to use the alternatives. Using the bikestand as a support which I can drive the bongo onto ensures that the wind doesnt get the better of it as well !

With the magloop just out the door and feedline thru the front window, I could get the SWR pretty much always under 1.5 to 1:1 – 20m was alive with contesters – even FT8 was super busy – the excellent SDR Control really helped – I cant say how good this application is, I am getting more out of it every single time I use it, the ease of logging and connection to the IC705 via Wifi is excellent. FT8 got very busy, so remembering I had FT4 available also, headed up the band slightly and enjoyed a rapid sucsession of QSO’s. Within one hour I was very close to having enough QSOs to activate the park.

Digital Mode QSOs logged manually

I also log manually just to ensure I have a backup, I found today that jumping between bands was getting easier – I tuned 1:1 on 17m in just one go, and by now with a great collection of data mode QSO’s under my belt, felt it was time for some telephony/SSB action.

I piggy backed on the back of the contest, it was great running QRP portable and even the contesters were happy to receive a mobile station, some even going beyond the usual contest rubber stamp asking my about my setup ! I really enjoyed that and a method I will use in the future (I actually was inspired to do this by VK3YE talk on how to get more HF contacts!)

excellent video by VK3YE on getting contacts on HF

After a great lunch in the Bongo, I decided to head out to the park for /P action !

I really enjoyed the walk around the park, I wore the Alexloop hampack bag without any problem. It was quite weighty and at first a little nervous of the straps – thinking about how much equipment and how much it costs tends to make one a little trepidatious in trusting it all to a couple of straps!

Whilst having a table/chair is my preferred ‘comfort’ of operation – and I even passed one picnic table, I liked this location, it was in the shade and the bench long enough to get everything on it without worrying about it falling off. A good bungee allowed me to strap the alexloop onto the bench, only once wobbling over when a big gust of wind came in.

It was nice that there was people interested in what I was doing, even a few comments by the passing runners on what a nice setup, as ever people where amazed with being able to make contacts around Europe – I think peoples perception of Amateur radio is that of huge Yagis and long wires, when they see the little loop and the SDR display with foreign voices booming from the IC705 they are interested to see it in action, I’m always happy to show the log book and talk about it.

I was able to make one more QSO from the bench and really enjoyed that, even on 5W of power the noise floor in the park was so good that I didnt need lots of power or a huge antenna to have a SSB contact. The fact that I had spotted on PoTA app meant other amateurs were looking for me helped for sure.

It was as easy to pack away as it was to setup from the bench, proving how versatile a well organised radio can be.

Heading back to the bongo I enjoyed seeing blackberrys growing and a giganttic overlflow carpark – it looked closed and judging by the meters had been for quite some time. I dare say this could be an excellent place to put a bigger mast and wire-type antenna up. I admired the view from the carpark once more before heading back to the QTH having had a really excellent time out with the radio. I will be back for sure and would like to investigate the bird reserve next time, it really is a big PoTA area to cover !

20 Unique calls today !

3 PoTA hunters
activation video

A SSTV /M Test with the Arrow hand-held yagi from 2 locations

With the upcoming Hamworthy Park Festival I wanted to see if there was any chance I could reach the QTH. Previous attempts from Poole Harbour were unsuccessful with FM and the Bongos whip antenna, but having a new antenna in the armoury thought I’d give it a try.

I had already tested from the drive way of my QTH, then headed out to what is the nearest high point to my QTH in IO90BS, that of Ringwood Road near to the Matalan – IO90AS. A test of the SSTV repeater there worked well.

I then headed down to Hamworthy park, as I drove through Bournemouth and Poole the hills behind me which I knew would absorb my weak signal, but I’d thought I’ve got to give it a try.

I had the hand-held antenna quickly setup, it was fun to do it out in the field. I attached it to the THD7 and tried to reach the QTH station.

I was not surprised to not hear the pips back to transmit, but as I had driven there, transmitted anyway to see if anything would be received. I wasn’t expecting anything back as the replay mode hadn’t kicked in, so I would have to wait until I got home to see. Sure enough I had received something, albeit mostly static, but at least the application and radio could pull the signal out.

APRS Provided some interesting information. My route was entirely captured, this is due to the geography of where the APRS stations are located.

Route captured via APRS

If I compare my APRS packet reception to my location of the transmission from IO90AS, the APRS station is just down the road near to Bournemouth University.

APRS received via 2E0UXV

As soon as I go over the hill, all my packets are received from stations to the east.

G8TNU Digipeater

The hills between each location are clearly visible using the useful line-of-sight tool.

Hamworthy Park – QTH

Between Hamworthy Park and Corfe Mullen

A much better chance of reception

So it was great to go out and test, albeit the transmission back to the QTH from Poole was again not successful I was able to gain valuable experience and APRS packet data. I think I will be able to setup another solution utilising the Bongo’s 2M whip antenna and a small laptop for the actual Hamworthy Park Summer Fete, so will put those pieces together and test those out next !

Until the next time – 73s

2E0FWE

2M SSTV comes alive

Very early on 22nd of June my IC9700 let out a loud SSTV incoming signal on 144.500 – I typically monitor the 2M SSTV band in hope of some ‘local’ activity, so I was very suprised to hear something this early.

Within a few minutes several pictures had been received.

SSTV Test Card – source unsure

The first i was unable to make out the full text, but the next one provided some more useful information.

SSTV message from martellotowergroup.com 2M repeater

I had never seen this repeater before and was wondering if a new one had been setup in the locality, going to the website I found that the SSTV repeater was based in Clacton – some 232km/144 miles away ! The line-of-site rule for 2M was blown away by looking at the elevation profile between the QTH and the SSTV repeater.

elevation and distance between QTH and SSTV repeater

As the the morning went on, more signals went in and amazingly i was able to activate the repeater with the access tone and receive my own picture back. I then had an excellent QSO via the repeater with G4LVD based in Ipswich !

via MB7TV G4LVD
My sent image repeated back with the MB7TV overlay
Completed QSO via MB7TV to G4LVD

Having completed the QSO I was left wondering, how is it I could suddenly receive the SSTV repeater which is so far away. A posting to our clubs mailing list provided the insight – a temperature inversion had caused a opening on VHF between the QTH and MB7TV. Not really knowing what a temperature inversion was, I looked that up, and the met office giving a great explanation. I was just lucky to be listening at the right time and to receive the signal from so far away!

With that I wondered as these are predictable, there must be some forecast, sure enough I found a site that looked to model the inversion that was seen this morning.

https://tropo.f5len.org/forecasts-for-europe/

This means that I will be able to at least listen out at these times and try a QSO again. I’m not sure if I would ever be able to reach the SSTV repeater on mainland Europe, but with P13DFT in Delft in the Netherlands and another Germany, it will be great fun trying ! Heres to more ‘temperature inversions’ and more SSTV QSO’s on 2M!

2E0FWE – AO91

Today (19/6/22) was my first attempt of using satellites put in place for amateur radio. Having read up and joined Amsat (a very modest fee for quality content!) I targeted AO-91 as my first satellite.

AO-91 – GoSatWatch

I could see there was at least a possible chance of making a contact at 09:14 BST, so I set out with the Arrow II 146/437-10WBP 2m/70cm antenna and my TH-D7 hand-held.

Having got the antenna built and radio ready (I pre-programmed the optimal tuning in the shack) I setup a comfortable postion to operate from.

I made sure i was ‘aligned’ to the sky with a real magnetic north compass to ensure that I would stand the best chance of being able to hear the satellite as it came over on its relatively low and short pass.

I was astounded that with pointing the antenna on frequency I was soon hearing QSOs from Italy and the Netherlands via the satellitle on 2m and 70cms. As I was about to try calling my THD7 stopped working ! In a rush I got the THD7 plugged into the Bongo power and could continue to receive, but was unable to complete a QSO this time.

Whilst the battery had got the better of me making a QSO, I was really happy that the antenna and receiver worked and even on a ‘low’ short pass I was able to hear QSO’s. I was amazed at how quickly people gave callsigns and grid locations – there was little time more for anything more – I can see why people recommend recording contacts on satellitle and make the log book after.

I headed back to the shack and tried the AA battery pack that came with the THD7, this also failed to power the radio, so I had to engineer a solution ! I found a ‘spare’ connector from an adaptor set and ‘butchered’ that to make a DC power supply from the batteries I usually use on the IC705, these would be more than enough power for the THD7, even with the squelch fully open, to operate receive and transmit for the times the satellites came over.

Conclusion

Whilst my first attempt at satellites didnt result in a QSO I gained valuable experience and could confirm my antenna and transceiver worked correctly. Whilst the in-built battery was bad, and replacements unreliable/dangerous, I was able to manufacture a replacement. I’ve since ordered a ‘cheap’ Digital voice recorder and headset for QSO’s – I think I have a splittler cable, but will find out when the digital recorder arrives how to drive both headphones and recorder.

In all I was very happy to go from 0 experience, to at least listening, which is pretty much what I done on all the bands in the past anyway, so was very happy to make my first steps in amateur radio satellite communication.

Upton Country Park – a visit for PoTA activations

Having now purchased a season ticket for Parking at Upton Country Park (G-0443) I wanted to make a site-visit to check it out.

I first looked up the map available on-line to see what kind of walk I could have.

upton country park map

I parked up and headed off with my little Maltese / poodle cross Sweety to enjoy the survey!

Car Park (bongo in distance)

My objective is to find somewhere where I can work, ideally near the shore/sea as I’m sure even with a magloop that will help with the DX, as shown when I had a fantastic activation down on the Jurassic Coast at Weymouth (loads of Data and Telephony contacts!), I followed the red-path but with the purple de-tour across the bay.

Our route took across a specially built path that crossed a marsh/bay. It was fantastic view across to Poole and many birds could be heard. I immediatly thought how nice it would be to try out the wire-meshing as a counterpoise and right next to the sea ! One to try out for sure. Sweetys paws had no problem on the wire mesh and infact made quite a nice tempo beat as he walked across.

It really is an idealic environment, its hard to image that an massive urban environment is only minutes away, its pure escapisim coming to the country park. The park/council had installed a lovely ‘frame’ to capture the scene (full pic here) I was really in my element enjoying the weather and taking my dog for a walk. There was few but nice people around (Monday evening 19:00 approx) The Corgi pictures with info about The Queens dogs was lovely touch on the Platinium Jubilee.

As Sweety and I’s walk came to end we reached the lovely ‘picnic’ spot – which is a set of lovely wooden seat and table. Whilst its far from the sea, just thinking about operating from here made me really excited. The view was fantastic, a few pylons down the road was the only negative, not sure how much they would effect my experience. The woods was lovely.

A lovely place for anything, but especially radio !

I cannot wait to get back to Upton Park with my radio, it is so near and fantastic location to operate from. I am sure it will get me lots of contacts !

Jubilee Decorations at the QTH

With a long bank holiday weekend for the Queens Platinum Jubilee I set about decoration the QTH. Whats the ham radio connection ? Well I mostly re-used antenna masts for the bunting and flags.

QTH Bunting and Flags

After an hour or so I got the bunting and flags up. One line of bunting accidentaly on purpose got caught up in the defunct TV antenna. As it was providing a good support to the bunting, I left it there !

For the Union Jack flag pole I took down the defunct NOAA antenna which is supported by a awesome Barenco tilt base, this makes getting masts up really easy.

Barenco Tilt base

I guyed up the mast it does get it bit blustry in that corner of the garden as its not shielded by any trees/houses.

For the bunting I lowered the 80m end fed antenna on the DX Command mast and hooked it onto one of the guying plates, it went up really easily, that mast is pretty bullet proof and the guying plates are extra strong, allowing the bunting to go over it, with plenty of distance between both (I dare say a few watts in the wire could effect the plastic bunting !)

For the other bunting I used a Sotabeams mast attached to our garden umbrella. It has a fair bit of ‘lash-bonding’ and then sizeable weights on the base to keep it vertical. During raising the bunting flapped around somewhat and got caught in the TV-Antenna ! I did attempt to get it down with another Sotabeams mast, but it is pretty tangle around the base of the TV Antenna ! So I’ve left it there for now.

A happy Jubilee QTH

I was happy to get all the bunting and flag up, I vividly remember the jubilee from 1977 and the street party then and what a happy occasion it was. Thankfully there is a street party tomorrow and am hoping the good weather holds out, its been plenty of fun putting the flag and bunting up and I hope it sets the jolly atmosphere on the street off (although the lower half of the road at the QTH).

Happy Jubilee weekend to you all.

73 / 2E0FWE