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Mull DX’Pedition ’13

G4ERO Had Beam, Gee 4 Eee aRr Oh

Colin G4ERO built a 15m beam and spent most of his time on 15m working the world, a song had to be made…

Caption Competition #3

Caption Competition #3

No prizes, it’s only for a bit of fun. Check the older entries. Today’s image is: what is going on??? Post your answers in the comments section.

G4ERO found 12M a little slow

Colin G4ERO found it slow on 12m this afternoon and promptly fell asleep while leaving the voice keyer running.. I couldn’t film any longer due to hysterics… G4 needs a nap

Caption Competition #2

Following on from the first Caption Competition we will carry on with a bit of fun with a “caption competition”.  No prizes, it’s only for a bit of fun. Today’s image is: what is Mark M0MJH doing??? Post your answers in the comments section..

Swapping a beam at GS3PYE/P

Panoramic view of our antennas

Panoramic view of our antennas

  Click on the image to enlarge.

DX Spots Ranking, GS3PYE/P #1

DX Spots Ranking, GS3PYE/P #1

So we have been busy and have seen lots of spots, we didn’t realise we are the most spotted in the world though! (Click to enlarge)

Caption Competition

As a bit of fun we will post a photo each day for a “caption competition”.  No prizes, it’s only for a bit of fun. Today’s image is of Colin G4ERO doing or saying??? Post your answers in the comments section..

Weather Time Lapse

Weather Time Lapse

We left a camera taking a photo every 10 seconds from 17:25.38 till 19:34.00 (99 minutes and 762 photos).  We made 1132 QSO in that time, all bands all modes, 11.43 QSOs per minute (1 QSO every 5.25 seconds) average. Time Lapse to the north It started rainy and ended a little more sunny, note …
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Outside Panoramic View

Outside Panoramic View

Here is the outside view from next to the cottage. In video: In JPG:

Tracking our progress

Tracking our progress

The GS3PYE/P trips always involve two sorts of operator: those who are eager to make as many QSOs as possible, and those who want to try new things or just gain some experience. With 13 of us on Mull this year, there’s plenty of room for both. Traditionally, those of us who are interested in …
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4m Meteor Scatter Fun

4m Meteor Scatter Fun

With 4m becoming more available in more European countries all the time we always know coming to the west coast of Scotland where the squares are pretty devoid of resident radio hams would make for fun operating, well with a slow start to the first full day of operating the band started to open. Here …
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The first casualty of the wind

The first casualty of the wind

One of the first antennas up after our arrival was the 80m vertical, mounted on an 18m fibreglass Spiderbeam pole. Our cottages are right on the shoreline, which is great for take-off but less good for the practicalities of guying antennas, as there’s rock within a few inches of the grass. In the case of …
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Beaconing the journey to Mull

Beaconing the journey to Mull

The eagle-eyed among you might have noticed that many of us were beaconing on APRS on our journey to Mull, and you might have wondered how we had such good APRS coverage, even in the middle of rural Scotland. The trick was that M0BLF-9 ahead of the convoy, and M0VFC at the back of the …
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472kHz tests

472kHz tests

On Saturday, G4BAO, M0VFC and M0BLF met at the normal G3PYE/P contest site at Worts Causeway, to the south of Cambridge, to test the 472kHz equipment we’re taking to Mull for the first time. We’re using an FT-817 as the receiver, and transmitting with the FT-817 on 80m with a transverter down to 472kHz. For …
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EME Elevation System Complete

EME Elevation System Complete

So the EME elevation system is now complete.  The control system was able to be simplified due to using the accelerometer as the elevation feedback.  This is an update to the Original EME Elevation Article. You can see how the system assembles in the above picture, as the Jackarm extends the upright moves.  The antenna …
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15m Beam by Colin G4ERO

15m Beam by Colin G4ERO

In 2012 I built a 10M beam to a YU7EF design which worked very well, it was just about manageable to mount on a SCAM mast single handed. Thoughts then turned to the possibility of building a 15M beam similarly design by Pop YU7EF. This would be a greater challenge as it would need to …
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EME Elevation System

EME Elevation System

So progress is being made on the elevation system.  We have the mechanical side complete, the controller/feedback had some issues but a solution is now sorted. Mechanical You can see the milled and turned pieces of metal Dave M0VMC has produced for us.  Dave was on the 2008 DX’Pedition and has access to a wide …
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ICQ Podcast – S06E08

Series Six Episode Eight of the ICQ Amateur / Ham Radio Podcast has been released. The latest news, listener mailbag feedback and Martin Butler (M1MRB & W9ICQ) are joined by the Cambs-Hams to discuss their upcoming DXpedition to Mull. Rob M0VFC, Lawrence M0LCM, Dom M0BLF and Gavin M1BXF chat to Martin M1MRB about the Mull2013 DX’Pedition, …
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472kHz update

Successful tests today of the 472kHz TX converter with WSPR, Reports from over 600km this evening. I’m still a little unsure of how good the receiver on the 817 is so more tests on that tomorrow. Hope to play with antennas up at Wort’s causeway over the weekend, WX permitting? I will bring Rob’s VNA, …
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Mull2013 Clothing

Mull2013 Clothing

Every year we go out and get branded clothing for the dx’pedition.  This year we changed supplier to RebelScum Workshop after one of our group recommended them to us and the decision was a very good one it turned out.  Not only was the price cheaper than the competition but the quality was fantastic and …
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IO76EJ Path Plots

IO76EJ Path Plots

Just done a HEYWHATSTHAT plot of the Mull 2013 site, it looks good: http://www.heywhatsthat.com/?view=ATC92334 It shows that from North to South looks reasonably clear, much better for VHF than last year where Microwave Hill was in the way!

SSPA for 144MHz EME operation

SSPA for 144MHz EME operation

I have now completed the assembly and initial bench test of the 2 x Harris 144MHz SSPA, and it’s looking good. Just needs a little interfacing work by Gav plus a couple of fan guards and a good testing before it gets the go ahead to be included in the trip. Here’s a couple of …
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144MHz EME operations

144MHz EME operations

As well as terrestrial operation, we plan to run a JT65B digital EME station using a single 17 element yagi and full legal limit on 144MHz. Sked co ordination will be via http://www.chris.org/cgi-bin/jt65emeA  I’ve run the dates of the trip through Moonsked and attached is a rough (hourly) table of when the moon is below …
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472kHz progress breaking out!

472kHz progress breaking out!

I have now completed the G3XBM Transverter. (see picture)   It produces around 10-15 Watts on 472kHz driven from and FT817 on 80m. The 817 has been checked out on WSPR receive, so I need to find out what other digimodes I need to prepare. The switching PA design means that we are limited to …
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Planned Satellite Operations

On our returned trip to the Isle of Mull this year, we plan to operate through the current active amateur radio satellites (Full list pending). The setup we plan to use is simple yet effective consisting of the following: Yaesu FT-817 Arrow Antennas – Arrow II 146/437-10 Portable Satellite Yagi HamSatDroid – Tracking Digital Recorder …
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Mull 2013 Meeting #1 Notes

So at the end of February we had out first meeting about this years dx’pedition.  All went well and I thought I’d post a few notes about where we are; 472kHz is progressing – TX is transverted from 80m on an FT-817 with RX direct with FT-817; With noted from other stations we are making …
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