Elektro-L3 started its 1691 MHz LRIT/HRIT downlink from 14.5° W on 26 October 2026. OE3HWC received it in Austria with a 1 m offset dish and our WX HRPT feed.
Author: Nolle Engineering
A 2.2 GHz IceConeFeed in a 3 m prime-focus dish for LEO tracking
A customised IceConeFeed tuned to 2200 MHz at the prime focus of a 3 m KTI/SAMI mesh dish, feeding an S-band LEO ground station.
SP3OHM: a DIY IceConeFeed on a Triax dish for QO-100
Michał Słomkowski, SP3OHM, printed and wound the IceConeFeed DIY helix for his QO-100 station in Poland. Three photos of the build on a Triax offset dish, radome off and on.
The IceConeFeed through a Nordic winter
We develop and test our antennas in Bavaria, where a hard winter is a few days below zero. So for the question of how the IceConeFeed handles a real Nordic winter, we asked the operators who run it there. Here is what they report. A note on what the IceConeFeed is, since it matters here:…
Urban Radio Astronomy with the L-Band H1 Helix
How a 10-turn L-Band H1 helix detects the 21 cm hydrogen line from a city balcony in Jena — VNA data, full signal chain and reproducible galaxy transits.
A Student’s Journey into QO-100
Adam Laczkó, OM2ADM, an 18-year-old ham from Slovakia, built a QO-100 station as his final school project, with an IceConeFeed from nolle.engineering. Here is how it went. The Beginning: Seeking Knowledge and Support Adam, like many young HAM enthusiasts, was intrigued by high-frequency communication. For his school project, he chose to build a QO-100 setup—an…
H1 Hydrogen-Line Reception with an L-Band Helix: Huub’s Setup
Radio astronomy opens a window to the universe by capturing radio waves emitted by celestial objects. Recently, I had the pleasure of discussing a successful H1 antenna setup with Huub, an enthusiast who has been experimenting with various configurations to optimize his radio astronomy observations. In this post, I will share insights from our exchange,…
IceConeFeed Right Hand Circular!
The nominal QO100 uplink which is using a dish reflector requires a left hand circular polarized (LHCP) feed. This is because the dish reflection mirrors the polarization and turns it from left to right hand as the satellite expects it. But what if you have a dual reflector like OH2JKU in Finland? You need to…
LOKI: Controlled GNSS Jamming & Spoofing Trials
How our L-band RHCP helix antenna became the transmit element in LOKI, the Spanish Naval Academy GNSS jamming/spoofing test system used across NEMO, MARSEC and MINEX naval exercises.
L-Band 10-Turn Helix review by TechMindsYT
Check out the review of our L-Band 10-Turn Helix Antenna for #Inmarsat from @TechMindsYT here: Want one? Browse the full L-Band Helix family in the shop — GPS, Hydrogen Line, Inmarsat and Iridium variants, all fully assembled and tuned.