Balcony On The Air

Since the end of March I was more frequently QRV from our balcony. This was possible because we had unusual warm and dry weather. Also, I had more time due to the Corona crisis: As we all know, many events were cancelled and short-time work became effective.

2020-05-27 18.16.45

The “ operator’s workplace “ is located on the bench next to the terminal box of my 40 metre long wire (not in the picture, you only see the board on which it is mounted). A short piece of coaxial calbe connects the KX3 to the antenna. The built-in ATU provides the necessary matching. The KX3 is powered by a 17 Ah AGM battery (brown wooden box), which in turn is powered by a 10 watt solar cell with a PWM regulator.

Usually I am on the air from late afternoon, when the D-layer absorption decreases and the 60-metre band comes to life. When sporadic-E is present, I like to switch to the higher bands, which are now – in times of sunspot minimum – rather poorly used.

With a maximum output power of 10 watts and a long wire, no miracles are to be expected. But it works all across Europe and sometimes remarkable contacts can be made that will remain in your memory.
Moreover, it’s incredibly relaxing to be out in the open with the world’s greatest pastime.

QRP L- tuner for 5 MHz … 28 MHz

Recently I came across an article from Andrew, VK1AD, in which he describes a QRP L- tuner for 3.5 MHz to 52 MHz. It can be found here.
Andrew’s article is based on an essay by Peter, VK3YE, published in VK’s Amateur Radio magazine, Edition 5, May 2017.
I really wanted to try this easy to build L- tuner, because I thought it might perform even better than my EFHW- transformers (UnUns) and the EFHW- dipole I’m currently using for my SOTA activations.