Author Archives: M1GEO

About M1GEO

George Smart, M1GEO http://www.george-smart.co.uk

HF SSB & 144 MHz Trophy

This weekend Dave M0TAZ took part in the 144 MHz trophy contest as well as a few HF stations in the RSGB HF SSB Field day from the Bunker site. He kindly provided this report.

The contest attracts activity from all over Europe, and on Sunday it also coincides with the low power back packer series. The contest has a number of categories from 24 hours to 6 hours. Dave M0TAZ decided to opt for a casual entry on Saturday only, operating for just under 4 Hrs. The contest was very busy, with a lot of high power multi-antenna UK stations with exceptional signals.

Using a Icom IC-7100 with 50w and a 12m mast supporting a 9-element tonna, Dave was able to work 41 stations.

14982218488_7c51d611f3_z

Some DX highlights for the day was

DL0GTH in JN50 @741 KM.
DA0FF in JN40 @ 688 KM
DL0GM in JO31 @520 KM

You can view the claimed scores here: http://www.rsgbcc.org/cgi-bin/claim.pl?Contest=144MHz%20Trophy&year=2014

On Sunday, Dave decided to work a few HF stations, the RSGB SSB Field day continued
until 2PM local, so set up a simple station using 100w from the Icom into a doublet antenna 20m per leg fed with 300 Ohm ribbon cable.

14982226127_f1fc2b7077_z

With the able assistance of Fred G3SVK we worked 35 stations quickly before getting sidetracked by some JA stations calling on 21 MHz.

15168788975_7fe7b8bef0_z

After a few calls I was able to work:

JA7NVF
JA1OGI
JM1PLN

I also operated on 5 MHz and was able to work Mal G3KEV/p in Scarborough and Peter G4LNA in Hertfordshire.

A map showing the QSO completed on 144 MHz is available here:  https://maps.google.com/maps?q=http://www.rsgbcc.org/vhf/kml_files/2014/ONatUP7C7ck9GURxR8dAElXIfGezADV

144mhz_trophy_2014

Dave M0TAZ

Work The World

This weekend sees activation of GB0SNB for the contest group’s Work the World Weekend.  A chance for members to operate outside of a contest and to experiment with equipment in a less intensive style field day.

The weekend started off in a very informal manor, with Chris G8OCV relaxing in the sunshine whilst waiting for other members to arrive.  At 8:30am, the WX was good and the sun warm!

IMG_20140823_084209

 

The day progressed well, with Tony M0HQE and Chris G8OCV assembling the 3 element Yagi on 17 metres.

IMG_20140823_091626

 

Attention then turned to erecting Dave M0TAZ‘s 2 element Quad.  Here, we see Tony M0HQE and Alan G3RJI in the foreground with Graham M0PAX and Dave M0TAZ in the background.

IMG_20140823_112102

 

Taken just as the sun was setting, the two large antennas can be seen with the club caravan and members vehicles.  The black dot suspended above the caravan is part of the 40 metre dipole configured as an inverted-V.

Suntset over GB0SNB

 

Here you can see the 17 metre station, consisting of an Icom IC7700 with logging laptop, tea mugs, paddle and microphone all cosily settled inside the club tent.

IMG_20140823_213753

 

Meanwhile, Dave M0TAZ operates with relative comfort inside the club caravan. He’s using a Kenwood TS590s on 40 metres with the dipole, managing the massive pileup.  He was alternating between 20 metres and 40 metres, SSB and data modes.

IMG_20140823_212505

 

In total, we made just shy of 1000 QSOs during the weekend.  The total was 973.  Not bad going at all, and I think the RSGB Bureau will be busy!  The breakdown goes something like this:

Band SSB CW RTTY PSK Totals
40 metres 120 0 0 0 120
20 metres 138 221 36 39 434
17 metres 72 347 0 0 419
Totals 430
468
36
39
973

It is worth noting here that all of the CW QSOs were made by Fred G3SVK!

During the weekend we managed to work 68 separate DXCC entities, 16 on 40 metres, 47 on on 20 metres, and 41 on 17 metres.

The weekend saw a few firsts for GB0SNB.  First QSO with Anguilla (VP2E), Bahrain (A9), India (VU2), China (BY), Mongolia (JT) and Puerto Rico (KP4) to name a few.

VHF Field Day

Members of the contest group took to the air this weekend operating for the 2014 VHF national field day.  Members activated 4 bands, 6 metres, 4 metres, 2 metres and 70 centimetres.

Band Transceiver Antenna
50 MHz Icom IC-7400 6-element Yagi
70 MHz Icom IC-7100 8-element Yagi
144 MHz Icom IC-7000 16-element Tonna
432 MHz Yaesu FT-847 27-element Tonna

Two masts were used.  Pictured below are the 6 metre and 2 metre antennas on the SCAM 12 metre mast.
VHF NFD 2014During the 24 hours of activity, starting 2pm UTC on Saturday, we managed to rack up 20 QSOs on 50 MHz, 53 QSOs on 70 MHz, 76 QSOs on 144 MHz and 24 QSOs on 432 MHz (173 QSOs total). Maps of the QSOs made are shown below for the 4 bands.

50 MHz

50 MHz VHF NFD 2014

70 MHz

70 MHz VHF NFD 2014

144 MHz

144 MHz VHF NFD 2014

432 MHz

432 MHz VHF NFD 2014

50 MHz Trophy Cup

Members of the contest group took to the air this weekend operating for the 2014 50 MHz Trophy Cup.  Equipment was an Icom IC-7700 transceiver, 6-element 6 metre beam and 12 metre SCAM pneumatic mast.

50 MHz 6-element beam

During the 24 hours of activity, starting 2pm UTC on Saturday, we managed to rack up around 150 QSOs in conditions which where a little above average.  Best DX was a tie between EA8 and IZ1 both very close to 3000 km.  Splashes of sporadic-E were noticed, but these patches where few and far between (hence sporadic!).

Map of QSOs:

50 MHz Trophy Cup 2014

Visit from Cray Valley Radio Society

During one of our field day back in March we worked a member of the Cray Valley Radio Society (CVRS) on 4 metres FM.  Some conversation within the club lead to an email from Chris, G0FDZ, who stepped up to organise a club excursion to the bunker.  Several emails later, we had a date and time for the visit, with numbers to be confirmed.

The 26th April come around quickly, and around 20 members from CVRS arrived at around 10:15.  Peter, G0IAP, was there to greet the gents when they arrived, and fortunately was on hand to take a few pictures too!

Cray Valley members at the Bunker Entrance

Cray Valley members at the Bunker Entrance

Field Weekend

This event was similarly organised to the previous event.  Just a few of us run the event other the weekend, with a few others from the club helping out.  No photos of this event, but some breakdown of the 393 QSOs made.

The map below shows some of the contacts made.  Locations were taken from QRZ,com and so not all worked stations are on the map.

Map of some of the stations worked

Map of some of the stations worked

Below, a breakdown of the bands used and the number of QSOs made.

Band QSOs Percentage
40m 156  39.7
20m 233  59.3
10m 4  1.00
Total 393 100

Crude analysis of contacts made by mode of operation.

Mode QSOs Percentage
SSB 295 75.1
CW 98 24.9
Total 393 100

Field Weekend

At about 5pm, Spencer M0STO and Peter G0IAP converged on the grass outside the main mast at GB0SNB.  In their usual style, George M1GEO and Chris G8OCV were late delayed by around 1 hour by collecting their caravan.  Kevin M0TBX and others arrived some time later since they were coming from work.

George's car was pretty full

George’s car was pretty full

Spencer and Peter had made a good start on the beam construction, while Chris and George were levelling the caravan and setting up the awning as a shack.

Spencer drinking a tea with the antenna parts in the background

Spencer drinking a tea with the antenna parts in the background

By the time the mast had been erected, it was dark, and the generator was running some halogen lamps for the final stages.

Members help guide the Cushcraft ASL 2010 up on the SCAM12

Members help guide the Cushcraft ASL 2010 up on the SCAM12, with Diamond F-23 colinear atop.

Once erected and inflated, the mast was locked in position.  We checked the antennas functioned and went to sleep.  We awoke around 6:30am to try and get some DX into the log.  While operating, we erected the other SCAM mast with a 4 metre antenna.

The field weekend setup near the bunker's original tower site

The field weekend setup near the bunker’s original tower site

After some initial contacts, it became apparent that there was an intermittent connection on the Cushcraft ASL 2010.  Spencer volunteered to adjust the antenna.

Spencer standing on the car roof adjusting the beam

Spencer standing on the car roof adjusting the beam

Strike a pose

Strike a pose

Once the adjustments were made, we went inside to operate.

Members listen in as Steve G8PMU operates 4 metres

Members listen in as Steve G8PMU operates 4 metres

Icom IC7700 comprises the HF station

Icom IC7700 comprises the HF station

Below, Fred G3SVK operates the key on 17 metres, beaming towards Japan.

Fred operates 17 metres CW

Fred operates 17 metres CW

Some preventative maintenance on the generator during the weekend; Here Graham M0PAX and George fill the generator with fuel, while Spencer checks the oil level.

Tending to the generator

Tending to the generator

In total, there were 280 QSOs made that weekend, covering all areas of the globe.  The map below shows some of the contacts made.  Locations were taken from QRZ,com and so not all worked stations are on the map.

Map of some of the stations worked

Map of some of the stations worked

Below, a breakdown of the bands used and the number of QSOs made.

Band QSOs Percentage
60m 7 2.4
20m 173 59.5
17m 83 28.5
15m 2 0.7
4m 9 3.1
2m 17 5.8
Total 291 100

Crude analysis of contacts made by mode of operation.  FM mostly comprised of 4m and 2m activities although there were a couple of HF FM contacts on 10 metres.

Mode QSOs Percentage
SSB 158 54.3
CW 88 30.2
FM 45 15.5
Total 291 100

Field Day

A hurriedly organised event at a Wednesday club night saw members meeting at the bunker for a field day on the 15 March 2014.  We arrived early morning, with Spencer M0STO arriving at 7:30am.  Other members arrived about 9am.  We erected a small day-tent, the SCAM12 mast, and a 4 element tri-bander HF beam.

Higher HF bands QRV via Spencer M0STO's yagi

Higher HF bands QRV via Spencer M0STO‘s yagi

Members outside the day tent chatting

Members outside the day tent chatting

Most operating was done on 10 metres FM since, and the GB0SNB callsign achieved a good pile-up with plenty of activity.  Dave M0TAZ called into the club top-band net from his car (although not /M).

Dave M0TAZ operates top-band portable from his car boot with fishing rod antenna

Dave M0TAZ operates top-band portable from his car boot with fishing rod antenna

 

Steve G8PMU brought a crazy looking 4 metre antenna and some good contacts were made.

Steve G8PMU works some nice DX on 4 metres with Clansman

Steve G8PMU works some nice DX on 4 metres with Clansman

Dave G7UVW and Steve G8PMU pose with Clansman radios on back-packs.

Steve G8PMU poses with Clansman

Steve G8PMU poses with Clansman

David G7UVW with clansman was pedestrian mobile on 160 metres!

David G7UVW with clansman was pedestrian mobile on 160 metres!

Pictures taken by Chris G8OCV.

Work The World

Since the 2012 Work the World Event, Kevin, M0TBX along with members from a local club decided to recreate the event following a similar approach – relaxed and informal field day.

The photographs on this page were taken by Graham M0PAX and used with permission.

Chris G8OCV's homebrew HF yagi

Chris G8OCV‘s homebrew HF yagi

David G7UVW walks to lend a hand erecting Dave M0TAZ's 20m quad

David G7UVW walks to lend a hand erecting Dave M0TAZ‘s 20m quad

Peter G0IAP, George M1GEO and Aaron operate the outside HF station

Peter G0IAP, George M1GEO and Aaron operate the outside HF station

The ground side of Spencer, M0STO's homebrew tracking array

The ground side of Spencer, M0STO‘s homebrew tracking array

Spencer, M0STO's satellite tracking array

Spencer, M0STO‘s satellite tracking array

Kevin operates HF from the outside station

Kevin operates HF from the outside station

Dave, M0TAZ, operates HF from inside the club caravan

Dave, M0TAZ, operates HF from inside the caravan

Some general chit-chat as members enjoy lunch in the sun

Some general chit-chat as we enjoy lunch in the sun

Work The World

This event was short notice, coordinated by Kevin, M0TBX, from a local club. Following the design and construction of a new HF beam by Chris, G8OCV, we decided set up a nice HF station and try and work some DX. Our ambition was simple, to work the world.

We set up camp using the club caravan on the surface of the bunker to give us plenty of room. In the background, you can see Dave, M0TAZ‘s quad also being erected as well as Dave, G7UVW‘s long wire.

Work The World Camp

Work The World Camp

I think we achieved our aim of working the world, as the map below shows. This map was taken after about 5 hours of operating. In total, we managed many other QSOs. Only the first QSO into each new region is included in the map, to prevent it from becoming too cluttered.

Map of contacts

Map of contacts

A few other pictures

M0TAZ works the HF station.

M0TAZ works the HF station.

A few of G8OCV‘s homebrew 20 and 17 metre beam.

Rotator and homebrew yagi

Rotator and homebrew yagi

G8OCV homebrew beam

G8OCV homebrew beam