Electromagnetic Field 2016

As some of you may be aware, last weekend I went to Guildford to attend this year’s EMF camp. Electromagnetic Field is a camping festival geared towards hackers and makers. The weekend is filled with interesting talks, demonstrations and crazy projects.EMF Sign

Arriving on Camp


My idea of a camping trip!

I arrived on site with a reasonable idea of what to expect, but this was reinforced when someone whizzed past me in a Sinclair C5. This turned out to be only a taster of what was to come.

I was to be joining a group of amateur radio enthusiasts who were running the EMF hams village. There were 16 of us and we had all come with a variety of equipment. Using the special event callsign GB4EMF, we operated using the following stations:

  • HF Station – Yaesu FT-1000, Mosley Mini-33-aw beam, SCAM-12 mast
  • VHF/UHF Station – Icom 706, 2/70 Beam, telescopic mast
  • Satellite Station – Yaesu FT-847, 2 & 70 ZL Specials on G-5500 Az/El rotator, tripod
  • Local Comms – Crossband repeater, Yaesu FT8900, X-50, 5.4m Clansman mast

EMFhams Setup

This was all made easier by the network of datenklos (data-toilets). These were power and networks hubs being kept dry using porta-loos. Over the weekend we maxed out at over 100kW pulled off two generators, 66  Wi-Fi access points, 4500 networked devices and 3.5TB of data going between our network and the internet.


Things to see

There was a lot of ‘stuff’ at EMF this year. A few honourable mentions go to the high altitude ballooning village, fire pong, just add sharks laser cutters, blacksmithing tent, lockpicking tent giant guitar hero, the music powered quadruple flamethrowerretro arcade tent and the amateur radio village of course.

JustAddSharks Laser Cutter

HABville's weather balloon tracking station

HABville’s weather balloon tracking station

Pub sign!

Pub sign!

Overall EMF camp this year was a fantastic event, full of technology and ideas. The talks I attended were very interesting, and all available of the EMF Youtube account. I’m definitely signing up for the event when it next runs in 2018. For more info see emfcamp.org, wiki.emfcamp.org, and for more photos see https://www.flickr.com/groups/emfcamp/pool/.

View of site

PS: I’ve got my new callsign, 2E0UAR


-Peter Barnes (M6KVA, 2E0UAR)

DIY Wouxun Programming Cable

I use a Wouxun KG-UVD1P handheld radio for all my operations. A few extra features can be used with the addition of a programming cable. These include:

  • Expanding the Tx and Rx range of the radio
  • Programming HAM repeaters into the memory
  • Changing some advanced settings

The cable required currently costs £5.69 from Ebay (link). Looking at the specification of the cable, I decided to look into the option of making one myself.

Parts List


The build process is very simple. Three connections need to be made, as shown in the below diagram.

Circuit Diagram

As I used a 2.5mm to 3.5mm cable, I simply cut it in half, and used a multimeter to match the wires up to the correct connections on the plug. I used some heat-shrink to make everything look nice, and then I was finished. I made sure to check the connections before using the cable.

Image of the cable I madeUsage

In order to use the cable, you need to install a driver, and Wouxun programming software.

  • Download and extract the Windows 8/8.1/10 driver from Prolific’s website (link).
  • Open “Device Manager”
  • You should see “Prolific USB-to-Serial Comm Port” under the “Ports” submenu
  • Right click on the device, and click “Properties”

Screenshot of Device Manager

  • Go to the “Driver” tab and click “Update Driver…”
  • Click “Browse my computer for driver software”
  • Choose “Let me pick from a list of device drivers on my computer”
  • Click “Have Disk”
  • Navigate to the driver that you downloaded earlier, and choose the “ser2pl.inf” file
  • Click “OK” to install the driver

Once that is done, you should be set to go. You can download the Wouxun programming software from their website (link). To program the radio, plug in both headphone jacks, and turn the radio on. Wouxun’s programming software will work automatically and is fairly easy to use.


Despite being slightly harder to set up than the official cable, this DIY option is much cheaper and does the job. Hopefully you find this guide useful, and if anyone has any questions, just post them in the comments below.

-Peter Barnes