Fabric antenna

Via Southgate News and MAKE magazine news of a collapsible fabric yagi antenna developed by Diana Eng KC2UHB who has combined two craft skills in a stylish way, electronics and sewing. It’s a design for a Yagi for portable amateur radio satellite operation.

Diana Eng KC2UHB demonstrates her collapsible fabric yagi antenna
Diana Eng KC2UHB demonstrates her collapsible fabric yagi antenna

Her MAKE magazine article is well-written, comprehensive and brilliantly illustrated.

Diana Eng has also written an earlier article aimed at newcomers to amateur satellites for MAKE that covers:

  • Finding out when to listen
  • Finding the frequency
  • Aiming a whip antenna
  • Following the pass with the antenna
  • Tuning the radio for the Doppler effect

Check the size of the antenna in that earlier piece and you’ll understand why she aimed at something more portable!

The KGD antenna

Via Julian G4ILO I came across a WSPRnet report from DM1RG on his success with a newly built KGD Antenna from the German site QRP Project. I had actually ordered their other antenna project (a Multiband Fuchs antenna that enables a single 41m wire to operate on all 8 HF bands) a few days ago and earlier tonight revisiting their site I was readng more about the KGD antenna – a very small vertical dipole – how’s 130cm for a 30m antenna that enabled a link from D to VK on 5 watts?

The centre part of the 40m version of the KGD antenna
The centre part of the 40m version of the KGD antenna

The Kurz Geratener Dipol antenna is no longer available as a kit but the instructions are still online – auf deutsch. I should also have a go at translating the manual. It seems to be quite an effective design. On the 40m version (pictured here from the QRP project site) – all 150cm of it – the bandwidth between SWR 2:1 points is 45kHz.

Reading about the antenna again on the same evening is clearly some kind of good omen? I can almost imagine one mounted bike mobile!

Buddipole set up videos

I’ve only just discovered the set of video tutorials on YouTube featuring Chris W6HFP of Buddipole. They’re clear and well shot and edited, I suspect by Steve WG0AT. And they’ve been online for over a year!

In this one Chris explains setting up a Buddipole Versatee Vertical.