tirsdag den 27. august 2019

Lower SWR on Helix13 from Wimo

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The QO-100 satellite uplink is in the 13-cm band. I'm using a 21-turns helix antenna (Helix13 from Wimo) for uplink antenna to the NB tr...
onsdag den 19. juni 2019

The GPSDO makes my LNB rock-stable

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A consumer-type LNB for Ku-band can receive the QO-100 satellite transponder. A LNB with PLL-oscillator has an acceptable frequency stabilit...
onsdag den 1. maj 2019

Transmitting via Es'hail-2/QO-100 geostationary satellite

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Transmitting via QO-100 was easier than I thought. The transmit chain is shown below. TX chain for satellite QO-100. A 70-cm transceive...
lørdag den 2. marts 2019

Receiving the Es'Hail-2/QO-100 geostationary satellite

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Es'Hail-2 geostationary satellite (credit: Es'hailSat) The main purpose of the new geostationary satellite Es'Hail-2 is t...
lørdag den 5. januar 2019

uBITX 10 W SSB-transceiver for 10-80 m

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I've just acquired an uBITX. It is a 10 W SSB-transceiver operating from 10 meters down to 80 meters. The uBITX is made in India . The t...
onsdag den 21. november 2018

A "small pistol" preparing for the CQ WW CW contest

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The CQ WW CW contest  runs the last full weekend of November. This event is probably the world's biggest CW contest. As I am a "sma...
lørdag den 27. oktober 2018

The Bluetooth radio in BBC micro:bit

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The BBC Micro:bit has caught my attention. Last month, I described a morse trainer with the micro:bit. Since then I've played with the ...