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	<title>Camb-Hams DX Blog</title>
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	<link>http://dx.camb-hams.com</link>
	<description>Blogging from the remotest reaches of the Scottish Isles</description>
	<lastBuildDate>Tue, 31 Jan 2012 10:41:27 +0000</lastBuildDate>
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		<title>Microwaves on Mull!</title>
		<link>http://dx.camb-hams.com/2012/01/31/microwaves-on-mull/</link>
		<comments>http://dx.camb-hams.com/2012/01/31/microwaves-on-mull/#comments</comments>
		<pubDate>Tue, 31 Jan 2012 10:41:27 +0000</pubDate>
		<dc:creator>m1bxf</dc:creator>
				<category><![CDATA[General]]></category>
		<category><![CDATA[mull2012]]></category>

		<guid isPermaLink="false">http://dx.camb-hams.com/?p=2077</guid>
		<description><![CDATA[If all goes according to plan (and see from the picture that the transverter needs some work still), we will be taking a state-of-the art 10GHz system to Mull. It will consist of a DB6NT transverter driven at 144MHz feeding a Micom 10 Watt SSPA and has a GPS locked G4HUP DFS Local oscillator. The [...]]]></description>
			<content:encoded><![CDATA[<p>If all goes according to plan (and see from the picture that the transverter needs some work still), we will be taking a state-of-the art 10GHz system to Mull.</p>
<p>It will consist of a DB6NT transverter driven at 144MHz feeding a Micom 10 Watt SSPA and has a GPS locked G4HUP DFS Local oscillator. The antenna is a 60cm &quot;Sky&quot; dish with a W1GHz dual band horn feed.</p>
<p><a href="http://dx.camb-hams.com/wp-content/uploads/2012/01/John_G4BAO_10GHz.jpg"><img style="border-bottom: 0px; border-left: 0px; display: inline; border-top: 0px; border-right: 0px" title="John_G4BAO_10GHz" border="0" alt="John_G4BAO_10GHz" src="http://dx.camb-hams.com/wp-content/uploads/2012/01/John_G4BAO_10GHz_thumb.jpg" width="504" height="379" /></a> </p>
<p>Most of the parts for this equipment have been kindly loaned by UK Microwave group awards manager Dave Powis G4HUP, in return for me assembling them so that he can later use them from home.    <br />10GHz will be a challenge from Mull as it is far from any activity centres but with suitable conditions and enough publicity I hope to make a few QSOs. I for one will be praying for rain so we can do some rainscatter, but with the right stations we may also be able to do aircraft scatter and normal tropo contacts.     </p>
<p>I&#8217;ll keep the website updated as the transverter build continues.</p>
<p>73    <br />John G4BAO&#160;&#160; </p>

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		<title>What equipment are we using?</title>
		<link>http://dx.camb-hams.com/2011/09/28/what-equipment-are-we-using/</link>
		<comments>http://dx.camb-hams.com/2011/09/28/what-equipment-are-we-using/#comments</comments>
		<pubDate>Wed, 28 Sep 2011 16:01:42 +0000</pubDate>
		<dc:creator>M0VFC</dc:creator>
				<category><![CDATA[General]]></category>
		<category><![CDATA[cuwsinfp2011]]></category>

		<guid isPermaLink="false">http://dx.camb-hams.com/?p=2042</guid>
		<description><![CDATA[A few people have asked us what equipment we&#8217;re using here in FP, so here&#8217;s a quick run-down&#8230; We&#8217;ve got up to four stations on the air at a time, so starting at the radio end of things: Elecraft K3 Icom IC-7000 Icom IC-706 Yaesu FT-450 The K3 and FT-450 are connected to linear amplifiers [...]]]></description>
			<content:encoded><![CDATA[<p>A few people have asked us what equipment we&#8217;re using here in FP, so here&#8217;s a quick run-down&#8230;</p>
<p>We&#8217;ve got up to four stations on the air at a time, so starting at the radio end of things:</p>
<ul>
<li>Elecraft K3</li>
<li>Icom IC-7000</li>
<li>Icom IC-706</li>
<li>Yaesu FT-450</li>
</ul>
<p>The K3 and FT-450 are connected to linear amplifiers to give them a little more power (typically about 300W), but the IC-7000 and IC-706 are barefoot at around 100W.</p>
<p>Next up, we use a set of DuneStar 300 series bandpass filters to reduce QRM between the stations. This is particularly important with the IC-7000, which generates a rather large amount of out-of-band noise. The DuneStars work very well, though being 3 pole filters, isolation between some of the WARC bands and the adjacent bands isn&#8217;t quite enough &#8211; typically 17m and 15m, for example.</p>
<p>For antennas, we&#8217;ve got a veritable farm of verticals out on the beach &#8211; quarter waves on 10m, 12m, 15m, 17m, 20m, 30m and 40m, and a dipole for 80m. The location adjacent to salt water gives us a definite advantage in the direction of Europe, but since Miquelon is relatively flat, the take-off in other directions is good as well. To keep weight down, these are fed with RG-58 and RG-8X coax &#8211; a little more loss than you&#8217;d have on a fixed station, but much friendier on airline luggage allowances.</p>
<p>Finally, some of the ancillary kit:</p>
<ul>
<li>A combination of Sennheiser PC350 and Heil headsets and foot switches</li>
<li>A WinKey for CW operation</li>
<li>Win-Test networked on four laptops for logging</li>
<li>Lightweight switch-mode power supplies</li>
<li>Lots of UK / European mains adaptors!</li>
</ul>

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		<title>How things sound from our side&#8230;</title>
		<link>http://dx.camb-hams.com/2011/09/28/how-things-sound-from-our-side/</link>
		<comments>http://dx.camb-hams.com/2011/09/28/how-things-sound-from-our-side/#comments</comments>
		<pubDate>Wed, 28 Sep 2011 12:53:06 +0000</pubDate>
		<dc:creator>M0VFC</dc:creator>
				<category><![CDATA[General]]></category>
		<category><![CDATA[cuwsinfp2011]]></category>

		<guid isPermaLink="false">http://dx.camb-hams.com/?p=2040</guid>
		<description><![CDATA[A quick clip of some of the (smalller) pile-ups as heard from our side!]]></description>
			<content:encoded><![CDATA[<p>A quick clip of some of the (smalller) pile-ups as heard from our side!</p>
<p><iframe width="560" height="315" src="http://www.youtube.com/embed/tUvCXZBn3Nc" frameborder="0" allowfullscreen></iframe><br />
</p>
]]></content:encoded>
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		<title>CUWS in FP Update</title>
		<link>http://dx.camb-hams.com/2011/09/27/cuws-in-fp-update/</link>
		<comments>http://dx.camb-hams.com/2011/09/27/cuws-in-fp-update/#comments</comments>
		<pubDate>Tue, 27 Sep 2011 20:36:28 +0000</pubDate>
		<dc:creator>M0VFC</dc:creator>
				<category><![CDATA[General]]></category>
		<category><![CDATA[cuwsinfp2011]]></category>

		<guid isPermaLink="false">http://dx.camb-hams.com/?p=2032</guid>
		<description><![CDATA[It&#8217;s now nearly four days into the DX&#8217;pedition, and so far it&#8217;s been fantastic. Here&#8217;s a quick run-down of the story so far&#8230; For G3ZAY, G4EAG, M0VFC and M1BXF, the trip started at London Heathrow Airport on Thursday morning. We nervously left the SpiderBeam fibreglass poles at check-in, hoping that they&#8217;d survive the trip intact, [...]]]></description>
			<content:encoded><![CDATA[<p>It&#8217;s now nearly four days into the DX&#8217;pedition, and so far it&#8217;s been fantastic. Here&#8217;s a quick run-down of the story so far&#8230;</p>
<p>For G3ZAY, G4EAG, M0VFC and M1BXF, the trip started at London Heathrow Airport on Thursday morning. We nervously left the SpiderBeam fibreglass poles at check-in, hoping that they&#8217;d survive the trip intact, and made it through security with no problems, even if the linear did attract some quizical looks! The flight left on time, and we arrived at St John&#8217;s, Newfoundland that evening where we met Rick, VO1SA in the bar.</p>
<p>Friday gave us the chance to spend some time looking around St John&#8217;s, and we visited Cape Spear, the most easterly point in North America, and Signal Hill, where Marconi received the first transatlantic radio signals.</p>
<p>Soon enough, we were back at the airport and met Dom, M0BLF, for the next flight on to Saint Pierre. We grew nervous as the fog descended, and indeed on arrival at Saint Pierre airport, the near-zero visibility meant that the final leg on to Miquelon itself was cancelled &#8211; Miquelon airport does not have instrument landing systems, and so good visibility is required. We stayed overnight on Saint Pierre, opting to take the morning boat to Miquelon-Langlade, the southern part of Miquelon. This turned out to be a wise decision, as visibility remained poor in the morning.</p>
<p>The harbour at Langlade is minimal &#8211; specifically, a piece of decking! We had to disembark from the main boat into a RIB for the landing, at which point we final became a full team, meeting up with Tom, M0TOC, who had arrived on schedule the previous day, and Patricia, the owner of the Motel de Miquelon where we would be staying.</p>
<p>On arrival at the Motel, we began assembling atennas, starting with verticals for 40m, 80m and 20m. Over the next few days, these were augmented with those for 10m, 12m, 17m and 30m. We were soon on the air, with an initial QSO with Pete, 2E0SQL, and the pile-ups started soon after!</p>
<p>The next few days have somewhat blurred together, often with four stations on air at once when the bands allowed, and some fantastic conditions on 10 and 12m. The pile-ups have been insane a lot of the time, and we&#8217;re now well past 11,000 QSOs to over 100 DXCCs.</p>
<p>If you&#8217;ve worked us already &#8211; thank you! It&#8217;s been great to hear so many people, many of them working us on several bands, and often several of us as well. You guys make it worth coming here!</p>
<p>If you haven&#8217;t worked us yet, here&#8217;s a few tips that make both your and our life much easier:</p>
<ol>
<li>The big one: if you&#8217;re trying to work us, and we have a pile-up, make sure you know our callsign before calling. We&#8217;re all giving our calls either every QSO, or every other one. In any case, it&#8217;s not going to be more than a few seconds until you hear it. It&#8217;s immensely frustrating to have to break the pile-up for someone who doesn&#8217;t even know who they&#8217;re calling.</li>
<li>Use your full callsign, not just a couple of letters when you&#8217;re calling: if you&#8217;ve not been on the receiving end of a pile-up, you might not realise just how much better full callsigns are than partials. Trust us when we say it gives you a better chance of getting through, and speeds things up for everyone!</li>
<li>If we&#8217;re sounding a lonely on the band, we&#8217;ll probably appreciate a brief chat to let us know the antennas hasn&#8217;t fallen over (again). However, if the pile-up is so big that we&#8217;re split over a range of frequencies, we don&#8217;t need your QTH, equipment, and life story! A quick signal report is just fine, and it gives everyone else a chance of working us.</li>
<li>When we ask for someone with a partial callsign, only call if your callsign matches (or is very close to) the one we ask for. Note that &#8220;IZ1ABC&#8221; is <em>not</em> similar to &#8220;the Kilowatt Nine station again?&#8221;</li>
</ol>
<p>If you&#8217;ve not seen it already, have a read of the <a href="http://dx-code.org/" target="_blank">DX Code of Conduct</a> &#8211; amateurs everywhere will appreciate it!</p>
<p>Dom, M0BLF has also made a few great videos of the start of the week:</p>
<p><iframe width="560" height="315" src="http://www.youtube.com/embed/OLPmGdoc-6Q" frameborder="0" allowfullscreen></iframe></p>
<p>
<iframe width="420" height="315" src="http://www.youtube.com/embed/MWQV62WvYIU" frameborder="0" allowfullscreen></iframe></p>
<p>
<iframe width="560" height="315" src="http://www.youtube.com/embed/FBjdRPAlT-Q" frameborder="0" allowfullscreen></iframe><br />
</p>
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		<title>Arran 2011 Log Analysis Part1</title>
		<link>http://dx.camb-hams.com/2011/05/29/arran-2011-log-analysis/</link>
		<comments>http://dx.camb-hams.com/2011/05/29/arran-2011-log-analysis/#comments</comments>
		<pubDate>Sun, 29 May 2011 17:57:32 +0000</pubDate>
		<dc:creator>m1bxf</dc:creator>
				<category><![CDATA[General]]></category>
		<category><![CDATA[arran2011]]></category>

		<guid isPermaLink="false">http://dx.camb-hams.com/2011/05/29/arran-2011-log-analysis/</guid>
		<description><![CDATA[So I’ve done some basic log analysis for the Arran DX’Pedition, more will follow but for now I’m looking mainly at the QSO rates vs time.&#160; You can see the full analysis here in PDF form. To keep things easier to display [in the graphs] the report is based on 30 minute snapshots i.e. 09:00 [...]]]></description>
			<content:encoded><![CDATA[<p>So I’ve done some basic log analysis for the Arran DX’Pedition, more will follow but for now I’m looking mainly at the QSO rates vs time.&#160; You can see the full analysis <a href="http://dx.camb-hams.com/wp-content/uploads/2011/05/GS3PYE_Arran_DXPedition_2011_Log_Analysis_Part1.pdf" target="_blank">here in PDF form</a>.</p>
<p><a href="http://dx.camb-hams.com/wp-content/uploads/2011/05/image.png"><img style="border-bottom: 0px; border-left: 0px; display: inline; border-top: 0px; border-right: 0px" title="image" border="0" alt="image" src="http://dx.camb-hams.com/wp-content/uploads/2011/05/image_thumb.png" width="582" height="381" /></a> </p>
<p>To keep things easier to display [in the graphs] the report is based on 30 minute snapshots i.e. 09:00 till 09:30.&#160; </p>
<p>Note: All times are UTC.</p>
<p>The analysis starts with a graph showing the total QSO number in the log overlaid with the total number of QSOs being made per time of day for all stations, It’s interesting as it shows the operating pattern for the whole week.</p>
<p>The second graph again shows the total number of QSOs being made per time of day for all stations but this time averaged for the whole week which highlights the operating patterns such as lunch at approx 12:30 each day and then dinner at 17:30 to 18:00. No QSO were made at all about 05:30.</p>
<p>The third graph titled ‘Operator [Week] Averaged QSO Count vs Time Of Day’ shows the individual operators QSO count averaged over the whole week. This is interesting as it shows things like the majority of Colin G4ERO’s QSO were made between 23:00 and 03:00 UTC, Martin G3ZAY and Steve M1ACB were the only 2 operators to work anything between 03:30 and 06:00</p>
<p>After that we have all the individual operators QSO count vs time of day for each of the days of operation which clearly shows the different operating habits of each person.</p>
<p>This is only the first part of the log analysis and more will come with details of trends like countries worked vs time of day and similar…</p>

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