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s58ru

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Inserito il - 01/11/2017 : 09:35:08

Visita di lavoro di OE4WOG Wolfgang e HG5ED in Slovenia.

Microwave field activity and travel report for July 7 to 21, 2017.
from OE4WOG

The big journey has ended;this travel report describes and summarizes our efforts in a form of a diary. It would be nice to get feedbacks and statements from all parties at the other ends of the radio paths.

For the 3rd time, microwavers from VK have met local microwaversin Europe to play radio around the ham radio fair in Friedrichshafen (FN). This year (2017) we have started in Italy and Slovenia at the weekend in front of FN and after the fair we continued our field program one more week after. We have activated various sites and mountain tops in I, F, OE, S5, DL, HB9 and HB0.

For pics and videos, please look at the sub folders uploaded on dropbox for particular days and activities. The text below refers to the subfolders.

Have fun, Wolfgang, OE4WOG

Pics folder: July 7 to 9_ 2017_S5

Ernie, HG5ED and OE4WOG arrived Friday the 7th July in the City of Kozinameeting Alojz (Gigi), S51JN and Agar, S56RGA. After a warm welcome, we discussed our activity plans and got invited to use the ham radio infrastructure on the summit of Mt. Slavnik, owned by the radio club of Koper. Next step was to check in at the hotel in Podgorje, a small village near Mt.Slavnik, it appears it was not so close as ithought. On Friday afternoon we immediately went uphill to visit the site and the infrastructure. The track was a stony 10 km long road and a challenge for Ernies Honda and my VW Sharan. It took us one hour to arrive the summit. Agar took the lead and benefits from driving an SUV.

Mt. Slavnikwith 1024maslprovides a good radio take off, with a deep sight intoItaly across the Adriatic sea. (Unfortunately, not on these days) Gigi has set up a personal 47 GHz beacon at his home QTH in Koper and we received it with S9+ levels.

It must be said the conditions for microwave operations were not the best due to hot and humid air. Best cond`s have been seen only in the early morning until 09:00h local time, later in the day, atmospheric attenuation increased dramatically with temperature.

On Friday afternoon,with only a view hours of operations, we got some RS cond`sand worked OE5VRL/5(FM), S51ZO (CW) and I6XCK (SSB) on 3cm.

Before we returned to our hotel ihad to change a flat tire.#61516;. On Saturday with the help of the hotel owner,i got the tire repaired but it was too late to go up to the summit again. Gigi, S51JN guided us to another place, very close to the border of Italy, overlooking the City of Trieste, but no QSO´s could be made, and we have used the time to monitor beacons.

As wewere close to finish for the day, a car with a nice couple inside stopped next to us. After some personal introductions and explanations it turns out, Rudi, S58RU and YLDarjahave started a search, as it became obvious some foreign microwave hams are in town, looking to make QSO`s on the mm wave bands.

Darja and Rudi invited us to her home, after some refreshments we talked ham radio. Rudi is QRV from SW till 76 GHz, his collection of radios, equipment and antenna structures is remarkable. We decided to go up to Mt. Slavnik again on Sunday and Rudi would go out for a portable spot.

We worked Rudi,S58RU on 3cm, 24, 47 and 76 GHz, all with S9+ rapports. See video 47 GHz QSO. Further call signs worked on Sunday were: I3CLZ on 3cm, 24 and 47 GHz, (QRB 173km), 9A4AQ on 3cm and 24 GHz, 47 GHz failed due high humidity, I3ZVN, S50J, DL3SE (533km), (DL3IAE 596km), IN3CCD, I3/VK3XPD (24 GHz failed, it was already too late in the day) and S59SG, all on 3cm partly in CW and under RS conditions.

On the Italian side David, VK5KK operated from Mt. Penice in JN44PS, Alan, VK3XPD together with the help of Roberto, IK3TCH operated from Comerlati in JN55NO.

On the evening we went back without any further damages and met Gigi for dinner in the City of Koper. We would like to express our thanks for all the hospitality we have gained from S5 hams and hope we can continue sometimes in future similar events. My thanks also go to Roberto, IK3TCH for his organisation andguidance.

Pics folder: OE8

Monday, July 10, Ernie HG5ED went back home, iwent to Austria arriving the City of Villach in OE8 in the afternoon. After a phone call with Wolfgang, OE8WOZ we arranged to meet together on the evening as the monthly club meeting took place on the same day. Left overnight in Villach, on Tuesday July 11, together with Wolfgang OE8WOZ, Paul OE8PKR we have made several antenna tests on 10 and 24 GHz over a distance of 80 Km.

On Tuesday afternoon, I continued my journey to Salzburg (OE2) and visited Hans, OE2JOM and YL Sylvia in Hallein. Took the night in Salzburg, arrived Friedrichshafen on Wednesday, July 12 early afternoon. Same time, Gerhard, OE1TGW arrived also Friedrichshafen and settled down at the camping area,opposite to the fairground.

At night, we VK5ZD&YL, VK5ZT, VK5KK&YL, VK3XPD&YL, OE1TGW and OE4WOG met together for dinner in downtown anddid the first talks about the next activities.

On Thursday, July 13, we started with sanity checks on our equipment and made the first test QSO`s.We used the same site locations as last year (OE4WOG on Pfaender in JN47VN and VK`s located in DL (JN47UO & UN respectively). The tests have shown significant improvements on equipment performances on 76 and 122 GHz transverters and antennas comparing the results we found last year.

Pics folder: ham radio in FN

Friday July 14 till Saturday July 15 was without any radio activity. OE2JOM, OE8WOZ joined the group, on Saturday we met with othermicrowavers from DL, HB9, 9A and I at the QSL wall. On the stand of DB6NT, Michael’s new toy was on display, it is a multiband 122, 134 and 241 GHz transverter. Not for sale! On Saturday night we met to our usual dinner at Tiffany`s.

Sunday, 16 July:

HB9/VK5KK & HB9/VK5ZD activated Mt. Saentis in JN47QF, OE8WOZ, OE4WOG took position on Pfaender in JN47VN, DL/VK3XPD was located in JN47UO and DL/OE1TGW/P was located in JN47TO. QSO`s have been made from 3cm to 76 GHz across the team as well with other microwave stations in DL and HB0. OE4WOG worked DL3SE and DH6SBN/P on 3cm. OE8WOZ/P was active from 70cm and up in activity contest.

Monday, 17 July:

David, DL/VK5KK activated Mt. Feldberg in JN47AU, OE1TGW, OE4WOG and VK5ZD still on Pfaender, distance to Feldberg appr. 173 Km. HB9/VK5ZT was located on Mt. Saentis. QSO`s have been made from 3cm till 47 GHz, no 76 GHz QSO achieved. Further QSO´s with HB9AMH, DL6GCK/P, DL7QYand DL3IAS have been made from 3cm to 47 GHz.

See pics folder Pfaender JN47VN:

Tuesday, 18 July:

Alan, HB0/VK3XPD drove down to Liechtenstein (HB0)location Schellenberg in JN47SF, OE4OG took a position on Pfaenderin JN47VN, but now with line of sight into HB0. Path distance is appr. 38 Km.We achieved QSO`s from 3cm to 47 GHz, unfortunately no QSO on 76 GHz.

At that day,the weather forecast predicted thunderstorms and rain cells for the evening. I packed my equipment quickly and met Alan in HB0 at the Schellenberg in JN47SF. The aim was to activate HB0 on 3cm. Very soon a thunderstorm appears from the south and we could do RS QSO´s via back scatter to DL and via forward scatter to Italy. Stations worked on 3cm: DK1MAX, HB9COP, IW2BNA, and DL7QY, the rain came very quickly and we had to leave the spot.

See pics folder HB0, OE9, equipment

Wednesday, 19 July:

OE/VK5KK and OE/VK5ZD have activated Zugspitze in JN57LK, DL/OE4WOG operates from Mt. Dreisesselberg in JN68VS, OE1TGW/P and OE2JOM/P hasactivated Mt. Gaisberg in JN67NT. The distance between Zugspitze and Mt. Dreisesselberg is appr. 260 Km, QSO was only successfully on 3cm. For the shorter distance to Mt. Gaisberg (less than 200 Km) we have made QSO`s from 3cm to 47 GHz. On the evening some RS came up and a 3cm QSO with OM3LQ was made successfully.

See pics folder: Dreisesselberg JN68VS

Thursday July 20:

No radio activity, meeting with VK`s in the evening in the City of Salzburg

Friday July 21:

OE/VK5JKK and OE/VK5ZD have activated Mt. Schafberg in JN76RS and stayed in the hotel on the summit until Sunday Morning. OE4WOG and OE2JOM have activated Gaisberg in JN67NT. The distance between Gaisberg and Schafberg is appr. 24 Km and it is line of sight. The aim was to check out, if we could make it on 122 GHz.

We started to aim our antennas on 24 GHz first and certainly we got very high signal reports on both ends. Received strong signals on 47 and 76 GHz too. On 122 GHz, with only bare mixers on both sides OE/VK5KK and OE4WOG/P achieved a CW QSO with 519 reports on both ends. Depending on the season and daytime, hot temperature and high humidity, the result was quite acceptable.

David did run a 25cm Procom dish at his end, OE4WOG has used a milled 40cm dish. In a second test, OE/VK5ZD has brought his 122 GHz CW beacon in service. In this configuration a GaAs mm-wave diode is working as a trippler, a higher rf output can be achieved against a pure mixer configuration. The rf level I received on Gaisberg therefore was remarkable higher as in the QSO before.

On the afternoon, Alan & YL joined us on Gaisberg; a 76 GHz FM QSO was arranged between OE/VK3XPD and David OE/VK5KK. 76 GHz equipment OE2JOM.

See pics folder: Gaisberg JN67NT

That was my last radio action and the end of my journey, I packed and went the last 300 Km back home, David and Iain remain until Sunday and probably have made a lot of QSO`s on the microwave bands. On Saturday I did a look on ON4KST and saw strong activity from Schafberg. The weather radar on the internet has shown strong rain cells, so I installed my portable 3cm gear in my garden and asked for a sked in ON4KST. At the end of the day, I worked David and Iain on Schafberg on 3cm in FM from home via RS. VK5ZD runs only 200mWatt output, in FM it was a bit noisy, no problems in SSB, VK5KK runs 4 Watts and was as clear as a FM QSO on a local VHF repeater.

See pics folder: OE4WOG home JN87HT

Summary:

driving2500 Km by car
1 flat tire
a four wheel drive car is definitely more attractive
we have met very nice people
liaison on VHF can drive you crazy
logistics is important
a good information system for skeds is even more important
you need a camera man/woman for documentations
you need an ON4KST operator
and you need internet access, not often available on mountain tops
it was fun

Please excuse my mistakes in writings( as you know, English is not my native language) and feel free to add text and pics to round up.

Comments, critics, ideas, suggestions?Drop me a line > oe4wog@oevsv.at

And thanks’ to everybody involved…

Cheers, Wolfgang, OE4WOG

Additional note:

Roberto, IK3TCH which made great job to support Alan, VK3XPD during the microwave DX–pedition, has sent some pix. These are added to the pix folders, see folder: IK3TCH_VK3XPD.pix. We have met Roberto and his gang later in Friedrichshafen. 73 de Wolfgang, OE4WOG

Update from VK5KK:

On previous trips, the group has travelled with enough equipment for one basic “QRP” setup on all bands from 1.2 GHz to 122 GHz. This time the focus was limited to 10, 24, 47, 76 and 122 GHz but with more power and enough equipment to assemble 2 separate portable stations on most bands. This translated to around to 25 kg of equipment per person including tripods and dishes.
Travelling on aircraft with the best equipment you can manage to work significant distances is “complex” in the current security climate and necessary customs inspections. Documentation is important should you be challenged at customs. Copies of your license attached to equipment referring to the CEPT agreement is important as well as a rehearsed “professional” summary of what you are doing and where you are going should you be asked. Batteries of any type are forbidden in check-in luggage and must be carried o board carryon luggage. Batteries must be under 100 Wh; those that aren’t in a commercial looking or safely packed will get confiscated.
Special attention this year with custom foam filled transport cases. A complete set of tools, soldering irons, spare FET’s, DC components, etc is in the kit just in case of repairs. All reported that they and everything transported survived the round trip to Europe despite open bag inspections, curious X-Ray machine operators and 60 GHz mmWave radar body scans! I would have loved to have a copy of the 3D X-Ray; great cross sectional presentation of the 3 die-cast boxes and the modules inside! A fair amount of reassembly of equipment is required as well as a complete check of the mechanical safety of equipment before powering up.
VK5KK’s travels started in the Southern part of France as the holiday part of the trip. These areas are fairly low in Microwave activity however there are a number of 10 and 24 GHz propagation beacons dotted around the area in Spain, France and Italy that you can look for. The UK Microwave Groups “Beacon spotter” is an invaluable resource to locate and confirm which beacons are operational and on what frequency. Just go to http://http://www.beaconspot.eu. The last spotted frequency is important as some beacons have been in operation on a remote hill top for some time and may have drifted a few KHz. In some cases that could be 10 or more KHz! Other details include the power and type of antenna used. Whilst most beacons are use an omni-directional slot antenna some beacons do use a horn antenna aimed in a particular DX direction.
On 30/6/2017, VK5KK traveled to Mont Ventoux, 1890 m ASL JN24pe in the Provence region of France. The mountain is accessible by car and is internationally famous as the long hill climb stage of the Tour de France. The tour de France has just started and this stage was still 3 weeks away so I thought it the mountain should be fairly quiet. Wrong, there were hundreds of cyclists doing the ascent! The drive to the summit was very slow as you have to pass cyclists every 20 – 50 metres. In some cases you can only travel in the middle of a barely wide enough road with cyclists climbing at 10 km/h to the right of the car and with those descending at 60 – 70 km/h of the left! The car cam makes interesting watching!
Cycling as side, the mountain would also have to be the best accessible microwave location in Southern France! Unfortunately our schedule was such that we couldn’t be on the mountain during a contest as Friday was the only day free. Still 10 GHz Transverter was set up on its tripod and six beacons were received. F5ZIR on 10368.804 MHz was the closest at 41km, the furtherest was 268 km to F5ZAE (JN33pq) on 10368.858 MHz. The F5ZAE beacon is close to the French/Spanish border butthere was clearly some Tropo over the Mediterranean sea as the signal was massive 599+. This same beacon has been received all the way along the Coast from Barcelona to Mt Ventoux so it is in a good location. It just runs 10 watts EIRPwith a slot antenna.
The Southern Europe part of the DXpedition focused on operation between Italy and Slovenia. David I/VK5KK was at Dia de Ablo (JN44ap) on 8/7/2017 and Monte Penice (JN44ps) on 9/7/2017. Alan I/VK3XPD at Comerlati (JN55no) on 9/7/2017 only. Wolfgang S5/OE4WOG and crew were at Mt Slavnik (JN65xm) in Slovenia on both the 8th and 9th of July.
On Saturday only David VK5KK and Wolfgang OE4WOG were active. The distance (475km) proved too great for Troposcatter on 10 GHz between us and there was no rain scatter (RS) about. VK5KK was located on a look out near a 400-year-old church; despite being ringed by several bigger hills I did manage to work 4 local home stations on 10 GHz out to about 120 km.
On the Sunday (9/7/2017), I/VK5KK moved to Monte Penice (1460 m ASL, JN44ps). 10 GHz was worked to I/VK3XPD (175km) on 10 GHz but S5/OE3WOG still was too far away (375km) to work directly on 10 GHz. We now had some good rain scatter approaching from the west so both VK5KK and OE4WOG had several 10 GHz RS contacts to Germany and southern Italy on 10 GHz. The longest RS contact was I/VK5KK to Nino DL3IAS (JN49ej) 518km. There was a lot of local 10 GHz activity in Northern Italy on the day with I/VK5KK working 10 stations as well as IW2BNA (JN45on) and I1KFH (JN45fg) on 24 GHz from their home stations. Distance around 90km.
A test was also done with F6DRO (JN03TJ) south of Toulouse 630km away with lots of short bursts of Aircraft enhancement (AE) over a 10-minute period. AE on 10 GHz in Europe is very common with the high commercial flight density.
The Northern Europe part of the DXpedition started the following Thursday (13/7/2017) with short (4 km) range field tests on 10 – 122 GHz from DL/VK5KK and DL/VK5ZD located NE of Lindau and OE4WOG located just inside of Austria at the Berggasthof Stadler (JN47vn). The main aim was to check everything was working before attempting greater distances. Signals on 10, 24, 47 and 76 GHz were very strong as expected. OE1TGW was also worked on 10 and 47 GHz over the same path. The focus then shifted to 122 GHz with signals being heard straight away despite the path touching the tops of a few trees. It would seem that all the trees have grown a bit in the last few years! We moved to another site just inside Austria near a tiny church we had used 2 years prior on 122 GHz. Both VK5ZD and VK5KK worked OE4WOG with 59++ signals over a 3.8 km path so our equipment was working.
Later that day we travelled to another spot further to the south west and work OE4WOG on 122 GHz over 7 km with 59+ signals. Dew point was around 14 – 15 Deg C, not exactly ideal for 122 GHz but we now had a good benchmark to work with for increasing the distance.
The next activity day was on Sunday (16/7/2017) with VK5KK and VK5ZD travelling to Switzerland to activate Mt Santis (JN47qf – 2500m ASL). Whilst Mt Santis was only 45km LOS from where we were staying the 3 stage trip took nearly 2.5 hours. First you must cross Lake Konstance by car ferry, then drive 55 km’s on a mixture of motorway and mountain roads then load everything into a cable car for an almost vertical 1200 metre ascent to the top. OE4WOG and OE/VK3XPD were located at the Stadler again with Tim VK5ZT roving close by in Germany on 10 and 47 GHz. We had also arranged several skeds on 10, 24 and 47 GHz with attendees heading home from the Friedrichshafen Ham Radio Fair.
When we first arrived, we were in complete cloud so it took a little time to work out where we needed to point! Luckily the cloud base started to break up after midday. HB9/VK5KK and HB9/VK5ZD worked 8 stations on 10 GHz on Troposcatter (no RS) out to 240km, 3 on 24 GHz, 4 on 47 GHz, and 2 on 76 GHz (59+ 48 km). The most notable contact was perhaps 175 km on 47 GHz SSB to DF9IC (JN48er) portable near Stuttgart despite Henning running only 20mW SSB! We also worked Thomas DC7YS on 47 GHz over the same path (59) running 800mW on CW only. Of note, QSB was heavily influenced by the transit of heavy cloud at both ends of the path on 47GHz; on 10 GHz there was little or no difference.
Whilst we were on the mountain we experienced a fair amount of QRM from the TV transmitters, microwave links, etc. There was no area we could find that was completely clear of interference. Our FT817’s suffered a fair amount of IF interference on 400 MHz, the only way it could be eliminated was to unplug the CW key, speaker and microphone! After a bit of DF’ing and tuning we found the main source was broad band noise from the SSPA on the HB9SIX 50 MHz beacon. Later whilst talking to the duty RF technician, we found out that the beacon ran around 500 watts and its antenna was inside the Radome about 10 metres behind us!
Monday (17/7/2017) DL/VK5KK travelled to the SW corner of Germany to the Ski resort at Feldberg (JN47au – 1493 m ASL). Tim HB9/VK5ZT went to Mt Santis with 47 GHz but unfortunately the mountain was completely clouded in so no contact was had. OE4WOG, OE1TGW and VK5ZT were at the Berggasthof 136 km away; contacts were had with both on 10, 24 and 47 GHz (59+) with both stations. Being a week day, there was less activity so only 6 stations were worked on 10 GHz out to 260km. Later in the day, Henning DF9IC went portable to the same location (JN48er) as the day previous. This time the distance was only 98 km. Contacts were had on 10, 24 and 47 GHz OK but only one way on 76 GHz. Time ran out to complete a 76 GHz QSO as I had to pack up in time to catch the last cable car down the summit!
Tuesday (18/7/2017) was a planned “travel” day but now we had significant storm systems heading in from the West so OE4WOG elected to activate Liechtenstein HB0 on 10 GHz RS. Very few people have worked HBO on 10 GHz.
Meantime OE/VK5KK (now at Innsbruck) decided to have a go at RS from Hafelekarspitze (JN57qh), a 2300 metre mountain only a few km from the city. This time only 10 GHz equipment as the mountain is surrounded by even higher mountains! RS was now evident to the West and to the East with several contacts to DL and HB9 as well as some Troposcatter to the North. The visit was cut short when the western cell arrived with lightning now striking the hills all around. We had to wait an hour at the summit station as cable cars don’t run during storms, when we did leave we only got about 30 metres down when there was a flash and the car stopped! It took about 10 minutes for the “manual descent” system to be engaged; we then descended to the next station at 1700 metres where we waited another hour.
Wednesday (19/7/2017) OE/VK5ZD and OE/VK5KK activated Zugspitze (JN57lk - 2960 metres ASL) on the German/Austrian border. OE4WOG travelled several hours to the junction of the Austrian, German and Czech Republic borders (JN68vs) near Dressell, 260km away. Several other stations were out portable in DL with 10, 24, 47 and 76 GHz as well as some home stations towards Munich. Within 30 minutes of setting up we had heavy rain and ice so we had to pack everything up. Once the weather cleared we worked a number of stations on 10 GHz as well as DJ8VY (110km) and DL6GCK (160km) on 10, 24 and 47 GHz. OE4WOG heard VK5KK on 24 GHz 519 but signals could not be heard in the other direction. We discovered after the Dxpedition that VK5KK’s new 24 GHz transverter had a design problem so that the receiver section was – 25 db down. This explained the disparity in signals on previous attempts with other stations closer on 24 GHz. By mid afternoon, RS contacts on 10 GHz were now good to central and western DL/HB9. This day we had a lot of tourists about including at least half a dozen hams who had been to Friedrichshafen and one doing a SOTA activation!
Friday (21/7/2017) OE/VK5ZD and OE/VK5KK travelled up the cog train to Schafbergspitze (JN67rs - 1783 metres ASL). Last year when we activated the mountain we only had one day of good weather. This time we had two clear days with most thunderstorms passing through to the North. Wolfgang OE4WOG and Hans OE2JOM set up equipment on Gaisberg (JN67nt – 1225 metres ASL), near Salzburg. The mountain selected was only 24 km away so we could attempt to extend our 122 GHz distance. VK5ZD and VK5KK quickly ran through 10, 24, 47 and 76 GHz working OE4WOG and OE2JOM with 59++ signals. OE/VK3XPD was also visiting the site and gave us a QSO on 76 GHz using OE2JOM’s equipment.
Now for 122 GHz. Wolfgang OE4WOG set up his system using a Tripler runs about 0.5mW (?) CW on 122250.120 MHz into a 400mm dish. After a bit of antenna tweaking both VK5ZD and VK5KK copied this signal QSBing from 51 to 58. Wolfgang then swapped to his SSB mixer that runs about 20uW, this was still audible with QSB. OE/VK5KK then returned a signal using his SSB mixer and a CW contact was had with OE4WOG, 519 both ways. Later Iain VK5ZD ran his Tripler beacon with OE4WOG and OE2JOM so they could compare and experiment with both their systems. Of note, as the humidity increased and visibility dropped over the path signals dropped 10 – 12 db. After these tests we now have a good idea of how our 122 GHz mixers work but we still need to improve the accuracy of our antennae.
That night we conducted some light wave tests with Tim DL/VK5ZT portable about 60 km North towards the Czech Republic border. The light was plainly visible to the eye once it was aimed but holding the tripod steady proved to be a problem. As there was an approaching thunderstorm, Tim had to pack up before this could be sorted. It became a different light show after that with VK5ZD photographing the spectacular lightning show from the mountain! The next day Tim set up again; there was some cloud cover but as it was quite bright we worked Tim on 47 GHz first so we could get an idea where he was. Tim had now sorted out the tripod so when he turned the light on we could clearly see the light despite it being daytime once it was aimed.
On Saturday (22/7/2017) we set up for Day 2 on Schafberg. The storms that passed the night before now provided RS to the East. VK5ZD and VK5KK ended up working 5 countries on 10 GHz including some new ones for us OK (Czech Republic), HA (Hungary) and OM (Slovakia). Other stations worked included Michael DB6NT from his home QTH via Tropo (320km away) and later Wolfgang OE4WOG via RS from his home QTH garden! Signals were 59+ on RS so we ended up working on FM noise free apart from the slight crackle of the RS. There is a YouTube video of the OE4WOG FM QSO, just Google” VK5KK Rainscatter” to find it.
On 23/7/2017 we all packed up and headed back to Munich. A total of 3900km covered, 2900km for the radio part!
The 2017 trip was a diverse trip with a few lessons learnt as always. Foremost the impact of humidity is now the limiting factor for our mmWave operations. Best described as a “Wall of water” especially on 76 GHz once you get over 90 – 100km. On 122 GHz that is more like 20km!! The other lesson learnt was to test equipment throroughly, the manufacturing problem with the new 24 GHz transverter cost us a number of QSO’s. We still need to improve our antenna, especially 122 GHz. And another lesson is using CW. I must admit I was rusty to start with but improved as the days went by as most 10 GHz RS contacts are on CW. Note to self... More CW practice!

Firma di s58ru

Rudi

Città: Capodistria ~ Messaggi: 423 ~ Membro dal: 02/12/2008 ~ Ultima visita: Oggi

s58ru

oltre 100 messaggi sul Forum

Inserito il - 12/03/2018 : 19:27:16

https://www.oevsv.at/export/shared/..._09_2017.pdf

Firma di s58ru

Rudi

Città: Capodistria ~ Messaggi: 423 ~ Membro dal: 02/12/2008 ~ Ultima visita: Oggi

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