DMR in tha house…

When I bought my IC-7100 I also did some digital radio using D-Star. That system is not widely used here. I can acces one repeater from my home, did not use it mobile yet but guess I will not be able te access any repeater in the area I travel a lot by car. Continue reading

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Yet another new toy… :-)

I experience a lot of noise on the HF bands and am not really able to find the source of it. It is nog generated in house as I tested that by bringing all power down. With a laptop and the Airspy / Spyverter SDR receiver I still receive the noise. I have about S8 noise from 160 to 20 meter. Above 20 meter all is relative normal . Continue reading

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New Toy…

Recently I sold my FT-857ND to make some money as I wanted to buy a ICOM IC-7100. It is one of the few rigs that runs 70 MHz allmode and I think that might be a nice band to experiment with. As I have a lot of noise on HF, specially from 80 to 20 meter, I think I might start to work higher bands, 12 / 10 / 6 /4 meter,  some more. Continue reading

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RTL SDR Passive cooling using thermal pad and old CPU cooler.

As the temperature in my shack can be between 25 and 35 C on the warmer days I decided to make a cooler for on of my ADS-B DVB-T SDR dongles. This because I found out that the dongle I use for receiving ADS-B signals becomes very hot at times. I found a method and a reason to try this on RTL-SDR.com describing the use of thermal pad. Ordered some at Aliexpress as I wanted to try this myself. Continue reading

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Lucky ADS-B Reception?

I have several ADS-B receivers running at the moment, 3 Raspberry Pi boards using DVB-T SDR dongles. When checking on of the receivers I saw there was a black stripe in the reception pattern. It was pointing east and could mean I received a real long distance position, about 325 NM or about 600 Km. Continue reading

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