Tag: QO-100

Monitor for SG-Lab Power Amplifier

The 2.4 GHz 20W power amplifier from the Bulgarian company SG-Lab is widely used among the OMs (including QO-100 sattelite fans) [1]. In addition to the attractive price, this is also due to the excellent workmanship and delivery in the milled aluminum housing. The PA contains three internal directional couplers for measuring input, output and […]


The SDR Active Learning Module  ADALM PLUTO from Analog Devices is used by many OM’s for working satellite QO-100. This is due to the attractive price and the excellent SSB-Modulation. No additional up- or down-converter are needed. Nevertheless some optimizations are possible. Installation in an aluminium housing avoiding radio frequency radiation Reducing frequency drift by […]

ADALM-PLUTO development kit for (not only) Es’hail-2 satellite

Adalm-Pluto (Analog Device) SDR radio starter kit was received for experiments by courtesy of Michał Trzaskowski from Richardson RFPD. This device gives completely new possibilities when it comes to cooperation with the first geostationary amateur satellite Es’hail-2. To name a few: thanks to the large bandwidth of the receiver (up to 6 MHz) it is […]

Es’hail-2 (or QO-100) for beginners

I bought a 80 cm satellite dish (16 Euro), a converter (4 Euro), installed it on the roof and set it up on the satellite (Dish Pointer was very helpful for azimuth and elevation finding). In our conditions, a 80 cm satellite parabola is a reasonable minimum when it comes to the receiving antenna. I […]