lørdag den 21. december 2019

Doublet multi-band antenna

›
For many years, I've used a lazy loop antenna for the HF-bands, and it has served me well. I've used it for working the difficult zo...
1 kommentar:
torsdag den 5. september 2019

Connecting fldigi to a WebSDR

›
This post explains how I connected Fldigi to a WebSDR on a Windows 10 computer. Fig. 1. Goonhilly logo. Qatar-OSCAR 100 Narrowband ...
1 kommentar:
tirsdag den 3. september 2019

Help - fldigi won't start

›
Fldigi is the leading application in digimode. It offers a multitude of digital protocols, from CW and RTTY over PSK31 to DominoEX, Olivia,...
2 kommentarer:
tirsdag den 27. august 2019

Lower SWR on Helix13 from Wimo

›
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

›
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

›
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

›
Es'Hail-2 geostationary satellite (credit: Es'hailSat) The main purpose of the new geostationary satellite Es'Hail-2 is t...