QRZ.COM
ad: L-HROutlet
ad: l-assoc
ad: L-rfparts
ad: l-rl
ad: Subscribe
ad: l-gcopper
ad: l-sarc
ad: l-innov
MW1CFN Wales flag Wales

Login is required for additional detail.

QSL: QRZ, E-QSL AG, LoTW, DIRECT $2. NO IRC !NO BUREAU!

Email: Login required to view

Ham Member Lookups: 62804

 

CROESO (WELCOME) TO THE COPPER MOUNTAIN STATION!

A 440 million year old hydrothermal vent that, in the late 18th century, was the largest copper producer in the world

Royal Naval Amateur Radio Society Member 4989

Anglesey was named by the Vikings in the 10th century A.D.  The 'ey' part means 'island' in Old Norse.

Photosphere immersive image here.           A short history here.

SCAMMING: If you get emails about money from me, it's not from me!   QSLing: LoTW now uploaded daily.  E-qsl less favoured now.

Acid mine drainage harbouring plenty of bacterial life, at a typical pH 1, underground Parys Mountain. Copper from here went across the world - and clad the hulls of Britain's timber warships. The mineral Anglesite (PbSO4) was named after being discovered right here!

My Interests include astronomy, middle and upper atmosphere research (noctilucent clouds and PMSE) and most aspects of science. I have been a regular contributor to Astronomy Now magazine for over 20 years. I was elected a Fellow of the Royal Astronomical Society in 2012, but since left as I don't agree with paying society managers £70,000 a year!

[Above: Using the radio in aviation is much more disciplined than on the ham bands! You can see the narrow (seawater) Menai Strait, which separates Anglesey (left) from the Welsh mainland]

[Below: Early days of operating FM satellites.  All antennas are homebrew timber-and-wire, using 4W handies; we enjoy very early horizon-clearing of sats, allowing good trans-Atlantic working.]

[BELOW] Marconi Station at Cefn Du, a few miles from here, where the first ever direct QSO with Australia (at Wahroonga) was made on 22nd September 1918, where mutual sentiments of gratitude were exchanged for each nation's part in the Great War. It took 160kW to do it! The photo on the right shows the matching inductor for the 1100 metre long inverted-L antenna system, keyed remotely from the receiver site, several km to the south. Operating frequencies varied with experimentation, but were typically about 50-100kHz. Steam was often reported to rise from the ground beneath the antenna during winter!

I work DX with this simple 20m homebrew delta loop with apex at about 8 metres. It was initially corner fed with coax and a 4:1 voltage balun.  Years later, I changed it to be fed 0.08 wave up from the bottom corner, with 300 Ohm twin running to a 4:1 current balun.  On obtaining an analyser (SARK-110), which gave an accurate assessment of system impedance (275 Ohms), I obtained a perfect match with a 6:1 voltage balun.  I prefer current baluns, but a 6:1 unit made professionally gave a slightly higher resonance point, so I've stuck with my homebrew voltage unit!  The loop is very quiet on receive, and resists strong winds very well. Sections are kept in place with Spiderbeam 'jubilee' (hose) clips and rubber pads, placed at the bottom of each section, and never slip.

If you have never tried a loop, and your surroundings are fairly clear, have a go! To get to a signal as good as the delta means putting up wind-catching beams at unfeasible heights for this very severe QTH. The reason for the good performance is radiation below the horizontal, at significant variance with models, almost certainly due to the unique nature of the QTH and ground conditions.

Here's what you can manage with 'just' a 'simple' wire antenna on 30W:

 

[Above] For night time entertainment in the depths of winter, a 20m-long inverted L for 80, 60 and 30m is an excellent performer. A single elevated radial, plus several buried short (~0.1 lambda) radials typically gets one of the best WSPR signals out from anywhere in the EU on 80m.

For 40m, I have a half sloper, being 10m of wire running from the top of the tower down to a fence post, and the outer connected to the tower metalwork.  The SWR is surprisingly good for this type of antenna - about 1.4:1 - and produces excellent results on WSPR and SSB. 

[Below] ARRL Terrain assessment, beaming North America (blue) and South America (red) with my 3-ele Yagi for 12m.  It's a good place for radio, but note how the intricacies of terrain have big effects upon the gain at low angles.

[Below] 12m is a lovely band for DX. This Innovantennas loop fed Yagi, seen against a midsummer noctilucent cloud display, gives excellent results, and resists severe gales throughout our winters.  Hats off to Kenpro's rotator, which is about 30 years old, still withstanding, and rotating in, regular hurricane-force winds.

[Below:]  Being at just 53 degrees north doesn't mean we don't see the aurora!  In fact, we see auroral glows on very many nights of the year, but big displays like this 'St. Patrick's Day' aurora of 2014 are limited to solar cycle peaks, two or three times a year.  I've managed good SSB aurora contacts on 6m with just 80W and a 2 element quad - one just has to speak clearly and s..l..o..w..l..y.., and not use a narrow beam, high gain antenna.

[Below:] The narrowest point of the Menai Strait (Anglesey on the left), showing Thomas Telford's world-famous Menai Suspension bridge (1826.) The strait is a series of about three ancient fault lines, which from time to time slip to cause brief tremors up to about magnitude 6.5 (e.g. 1984); smaller events about M 3.0 happen every few years (e.g. 2013.)

[Below] Some national science broadcasting on BBC Radio 4 during 2010 and 2011.

[Below] 46.5MHz array at Capel Dewi, Aberystwyth. 160kW pulsed (5% duty cycle max.) Operated by the Natural Environment Research Council, this MST RADAR examines the atmosphere up to about 85km, and I have the pleasure of collaborating with this facility (image credit: NERC) I also work with IRF Kiruna, Sweden, and even with the Australian Antarctic Division, examining the distribution of dust in the stratosphere after the Chelyabinsk meteorite event in February 2013.

[Below: SKiYMet meteor scatter (decay rate = derived mesospheric temperature) RADAR at Esrange, Arctic Sweden. Image: Nick Mitchell/University of Bath (approx. 2kW pulsed)]

[Below] My summertime research - noctilucent clouds at 82km (mesopause level) capture sunlight and reflect it forward to the observer during the summer twilight period. There are no known records of NLC prior to the mid-19th century, and a link with climate change is strongly implied. This shot looks north out over the Irish Sea towards the Isle of Man. The clouds are several hundred kms away.

Other activities over the years have included Wales-wide aerial archaeology surveys, where perhaps the best discovery was of several Bronze Age burial mounds on the north coast of Anglesey (seen in a line, below the farm buildings.)  These were previously entirely unknown, but lie in close association with a known standing stone and a known small settlement, visible as a ring to the centre left of the image.

Usual award stuff:

           

      

         

7517578 Last modified: 2016-08-20 19:17:20, 12953 bytes

Login Required

Login is required for additional detail.

You must be logged in to file a report on this page

Please login now...

QRZ Logbook Summary for - MW1CFN
Latest Contacts for MW1CFN at QRZ.com
dedateband mode grid Country op
DG3IS 2016-08-11 30M JT65 JO31uj Germany Harald Rosenstengel
EU1ST 2016-08-11 20M JT9 KO33tu Belarus Alexander(Alex) Nikolaev
5Z4/DC4CQ 2016-08-11 20M SSB Kenya
IU0GJB 2016-08-11 20M SSB JN52WB44 Italy Pietro Rossi
EA1ANB 2016-08-11 20M SSB IN52qk Spain Secundino Juan Painceiras Mera
AM1TSR 2016-08-11 20M SSB Spain Tall Ship Races 2016 Unión Radioaficionados Coruña
I6MJG 2016-08-11 20M SSB Italy GERMANO MARCELLI
Z6/DL2GC 2016-08-11 20M SSB NON-DXCC
DL6KAO 2016-08-10 20M ROS Germany
EA2ARD 2016-08-10 6M JT6M IN93ah Spain Jon Sistiaga
SV1IVK 2016-08-10 20M SSB KM17UX98 Greece Athanasios (Thanos) Baxevanis
DJ8RI 2016-08-10 20M SSB JO32pm Germany Eberhard Poske
LA/DL1DSR 2016-08-10 20M SSB Norway
RA4UID 2016-08-10 20M SSB Russia Ivan
DL7UHD 2016-08-10 15M JT65 JO62pp Germany Harry Duemont

Book Totals: 9811 qso's   5961 confirmed Get a free logbook at QRZ.COM

United States Counties Award#1351
Granted: 2016-07-19 20:00:04   (MW1CFN)

Endorsements:
  • 100 Counties Digital
  • 100 Counties Mixed
  • 250 Counties Mixed
  • 500 Counties Mixed
  • 100 Counties Phone
United States Award#144
Granted: 2015-01-22 18:06:08   (MW1CFN)

Endorsements:
  • Mixed Digital
DX World Award#201
Granted: 2015-01-22 18:05:38   (MW1CFN)

Endorsements:
  • 12 Meters Mixed
  • 20 Meters Mixed
  • Mixed Digital
  • Mixed Phone
Grid Squared Award#756
Granted: 2015-01-18 18:19:32   (MW1CFN)

Endorsements:
  • 5 Band Digital
  • 10 Meters Digital
    12 Meters Digital
    15 Meters Digital
    17 Meters Digital
    20 Meters Digital
    80 Meters Digital
  • 5 Band Mixed
  • 10 Meters Mixed
    12 Meters Mixed
    15 Meters Mixed
    17 Meters Mixed
    20 Meters Mixed
    40 Meters Mixed
    80 Meters Mixed
  • 10 Meters Phone
  • 12 Meters Phone
  • 15 Meters Phone
  • 20 Meters Phone
World Continents Award#806
Granted: 2015-01-18 18:17:51   (MW1CFN)

Endorsements:
  • 5 Band Mixed
  • 10 Meters Mixed
    12 Meters Mixed
    15 Meters Mixed
    17 Meters Mixed
    20 Meters Mixed
    40 Meters Mixed
  • 12 Meters Digital
  • 15 Meters Digital
  • 17 Meters Digital
  • 20 Meters Digital
  • 12 Meters Phone
  • 17 Meters Phone
  • 20 Meters Phone
ad: giga-db
Copyright © 2016 by QRZ.COM
Wed Aug 24 21:28:56 2016 UTC
CPU: 0.146 sec 91849 bytes mp