Amateur Radio Blog
Manmade QRM; I am now an expert by experience. In the almost 17 years that I have lived on my current QTH, I have seen the noise floor on 20 meter band, rise from S1-S2 to an average S5. I did manage to significantly reduce the interference from the largest Continue reading How to setup a webSDR as your secundary receiver
Past time my focus was on resolving the interference caused by neighbors’ two solar panel installations. Last year I bought a QRM eliminator with which I, in combination with a Miniwhip active antenna as auxiliary antenna, achieved good results on a decent part of the HF spectrum. But the interference Continue reading How the replacement of solar panel micro inverters lead to 50 dB less QRM
In most cases, radio amateurs love it when their antenna resonates, because a resonating antenna is usually also an efficiently working antenna. Alt least, when we talk about electrical resonance and not acoustic resonance. Because the latter can cause considerable nuisance, even dangerous situations. Fortunately, there is an effective and inexpensive way to Continue reading Is your antenna making noise? Use a rope!
In a previous post I did a review on the X-phase QRM eliminator. I quickly found out that the antenna for receiving QRM, the auxiliary or secondary antenna, holds the key to maximum performance of the QRM eliminator. A single wire along a shelf in your shack is, for what Continue reading Boost your QRM eliminator performance with an active antenna
If you see figures regarding solar activity, you could conclude that we are very close to the start of a new solar cycle. That means within a few years my beloved 10 meter band will open up again for DX. But I have also been struggling for four years with Continue reading Review of the QRM Eliminator X-phase
Spring 2015, there could be a crisis on its way. I home from work to find out my next door neighbour installed two solar panels on his roof. A ‘DIY plug and play’ type which you only need to plug in the wall. Well, you probably know that solar panel Continue reading When the noise came banging in
Most modern high end transceivers come with a nice display showing you a bit of spectrum analysis. This bit of displayed spectrum can be very handy when looking for activity on one of the bands. Even more when you are active in contesting. I have been looking around for a Continue reading How to setup a panadapter for the Kenwood TS-480
Quite a long time ago since I posted on my blog. People around me know I had quite some issues past years with my wife’s health. She had a stroke in 2016 and things changed for our family. I had throttled down my job and quit as board member of Continue reading Upgrading the vertical for the lower HF bands
I have a license to operate all HF bands, but my Hustler 4BTV 4-band trap vertical only covered 40m, 20m, 15m and 10m. Now the 80 m band is the only band which allows me to work NVIS night and day across the region here, while 1 m is a Continue reading CG-3000 remote auto tuner on HF vertical review
It took me a while to do it, but I designed a new QSL card. I am intrigued with solar activity and the influence on HF propagation, so I took a spectacular photograph taken by the NASA SDO observatory in space. It’s a filament floating on the magnetic field lines on Continue reading New PA9X QSL card