Category: Measuring

Due to illness I had to enjoy myself a bit at home with the moments when I felt a bit good. I had small projects that were already finished but still needed to be build into an enclosure. The Signal splitter 1 was one of them projects. I once ordered a package of PCBs from…

Recently I got my hands on a very good performing LNB for 10 ghz amateur television. Available on aliexpress under the name BT-180 with an LO of 9GHz. There was only a slight problem using it at my location. Here in the Netherlands there are 2 unofficial frequencies for ATV on 23cm. 1252 and 1280MHz.…

To be able to calibrate the Analyzer properly (OSL), we need accurate loads. It is also important that the loads over the entire spectrum also function well, show no reflections or have other characteristics than a good load. This is quite easy to make yourself. 

I have always wanted A good analyzer for HF up to VHF (2m) In the past I have build many Antenna Analyzers started with: Antan Analyzer VK5JST Antenna Analyzer Toghether with Jarek SP2SWJ we have built the BIGVNA MAX5 & MAX3 Big VNA Max 5 Max 3 Some weeks ago while I was surfing the…

In 2016 I bought a very handy tool for measuring all my antennas and “filters” up to 2.7GHz! Its an new Vector Impedance Analyzer for the company AAI, there are 3 versions of this analyzer, the one I bought is the N1201SA.. Specifications: – Model: N1201SA – Working currency 140MHz~2700MHz – Stepped frequency 1kHz –…