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Measuring the gain of a dish

Here I want to show a technique for measuring the gain of a dish that I first learned from an article by Christian Monstein about the Moon’s temperature at a wavelength of 2.77cm. The technique only uses power measurements from an observation of a radio source, at different angles from the boresight. Ideally, the radio… Continue reading Measuring the gain of a dish

An overview of IARU R1 interim meeting proposals

The IARU R1 interim meeting is being held in Vienna, Austria, on April 27 and 28. This post is an overview of the proposals that will be presented during this meeting, from the point of view of the usual topics that I treat in this blog. The proposals can be found in the conference documents.… Continue reading An overview of IARU R1 interim meeting proposals

Es’hail 2 frequency measurements

After being busy with other projects, I have resumed my frequency measurements of the Es’hail 2 beacons. The last measurement I performed was made when the satellite reached its operational slot at 26ºE. After manoeuvering to this spot, the Doppler was very small, on the order of 0.8ppb peak-to-peak, indicating a very accurate geostationary orbit.… Continue reading Es’hail 2 frequency measurements


2023-03-17, JPL Amateur Radio Club, Amateur Decoding of Deep Space Missions. PDF slides. 2022-10-08, AMSAT UK International Space Colloquium, gr-satellites and related experiments. PDF slides. 2022-02-06, FOSDEM 2022, Voyager 1 adventures. PDF slides. 2021-10-30, Space and Satellite Symposium – The Role of Information Theory in Space with Special Emphasis on Amateur Radio and Amateur Satellite,… Continue reading Talks