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Paul Warren

Welcome to my home on the internet! Everything here is free under the Creative Commons Attribution 3.0 license unless marked otherwise.

This site contains various pieces of writing across my various interests.

Thanks to Paul Fenwick for doing all the hard work, you can fork his original site on github, or my version (this site). Please feel free to send pull requests for bugs!

Ocf Dipole Up!

Sep 9 , 2014

I’ve managed to string up an 80m Off Centre Fed Dipole over the weekend, I managed a contact to Kentucky, USA, on 20m, and got a 59 report with my 100W and his gigantic yagi of doom! Also had a half dozen SOTA contacts on 40m and 20m over Sunday afternoon, so it’s fair to say it works!

I had taken some photos, but it’s actually really hard to see it in them! It’s just some wires running through the trees.

Last night I spent some time with the local club’s MFJ analyser (Thanks Gilbert!) and got an SWR graph of the antenna as installed:

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5w Dx!

Aug 28 , 2014

Woooo! Pretty excited, i had a day off yesterday, and in the afternoon thought I’d have a bit of a play with radios, and finally got a good DX SSB contact with my 5W OzQRP MST2. I managed to get to Europe, Coray France to be a bit more precise. It was with Frank, F5PAU, he’s running 1KW into a yagi, a pretty impressive setup!

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70cm Yagi

Aug 11 , 2014

Now that I know a bit more about antennas and why using a dipole in a yagi isn’t so good, I decided to build a new one, following the WA5VJB’s designs found on his website.

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New Callsign

Aug 4 , 2014

After passing my Advanced exam a few weeks ago, I’m now known as VK1ATP! Hope to hear you over the air!

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Sota Activation

Jul 27 , 2014

Today was the VK1 (And most of the rest of VK!) SOTA party, and I did my first ever activation on Mt Ainslie, VK1/AC-040, and had a bit of fun! I learnt just how far down the hill the activation zone starts, 25m altitude is a bit further than I thought!

Here’s my chair at the summit pole, the end fed antenna is strung up in the trees to the left.

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Boxed And Ready To Go

Jul 18 , 2014

Well, the Beach40 is boxed up and ready to test! Just working out what else I need to check before putting it on the air! Hopefully I’ll be set up at 04:00 UTC tomorrow (2014-07-08), listen out somewhere between 7.007 and 7.230 :)

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Weekend's Efforts

Jul 14 , 2014

Had a bit of a quiet weekend, didn’t get a huge amount of radio stuff done, instead mostly housework, looking after the kids and on call work!

However, I got my dummy load built:

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Beach40 Finished

Jul 8 , 2014

Well, the soldering is finished anyway! Still have to find a box, get all the connecting hardware, shield the oscillator, and build the L-Match circuit (and maybe the fine tuning circuit, and RF pre-amp).

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Beach40 Transmitting!

Jul 2 , 2014

Have got my Beach40’s mic amplifier in, and tweaked the carrier suppression via the balance pot and cap. I’m managing a carrier suppression of 24 dB, which i don’t think is too bad for a first time homebrew build, but I do need to get some non-capacitative flathead drivers, would make these things a bit easier!

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