Akademisk Radioklubb

LA1K / LA1ARK / LA1UKA

Tag: Radiation pattern

Pattern measurements of PE1RKI (OM6AA design) 3 cm septum feed with Chaparral style radiation part

We have bought a 3 cm septum feed from PE1RKI (OM6AA design), which we intend to use to become QRV [… Read more]

Using GNU Radio and Hamlib to calculate antenna diagrams

As a part of earlier blog posts ([1], [2]), we developed a couple of tools for measuring antenna patterns against [… Read more]

Measurements of the parabolic dish in a free path environment

We’ve experienced some discrepancies with the performance of our parabolic dish. During an earlier post, we ┬ádeveloped tools for measuring [… Read more]

Preliminary measurements of the parabolic dish

After having increased the sturdiness of the rotor, and installed the five-band ring dish feed and a 23 cm LNA [… Read more]

Rough antenna pattern measurements using a local radio beacon

As part of a sub-project for my master’s thesis I performed some antenna pattern measurements on three amateur radio yagi [… Read more]