Antennas, feeds and rotators
8.4 GHz LHCP Dish Feed
Jan 27th 2023
The WellGood active loop antenna tested with the Airspy HF+ SDR
Mar. 6th 2022
Table with the most important parameters of various coaxial cables
Dec 31st 2021
Dualband Feed for EsHail-2
June 3rd 2021
INMARSAT antenna system analysis and evaluation
May 17th 2021
Evaluation of a QFH-antenna-kit for L-Band (1.6 - 1.7 GHz)
April 28th 2021
Dual dipole linear feed for 1690 MHz to receive EWS-G1
April 25th 2021
Vivaldi antenna 1.5 - 15 GHz
Jan. 13th 2021
The 2 Element YAGI antenna for 1270 MHz from SG-Labs
Nov. 22nd 2020
Portable setup for QO-100 SSB operations
Oct. 23rd 2019
Optimization and measurement results of the 2m Eggbeater Antenna EGB145RE from ANjO-Antennen
Sept. 5th 2019
Comparison of Dual-Band Feeds POTY and from DJ7GP for QO-100
Aug. 9th 2019
Short S-Band helical omni antenna
Jan. 25th 2019
Analysis of an unknown active biconical S-band antenna
Jan. 21st 2019
What's inside the Kathrein antennas for trains and uses
Jan. 16th 2019
Simple rotator interface based on N1VF adapted to Vicon V380PTX PZT
Nov. 1st 2018
Dressler ARA-2000 active wideband antenna - what's inside ?
Mar. 13th 2018
What's inside of a Dressler ARA-30 active antenna?
Dec. 1st 2017
RF-Systems DX-one Active Amplifier rebuilt with New Amplifier by Ulrich HB9AIK
Sept. 25th 2017
Modification of the Worldspace Antenna ANA-10L for wideband use
May 1st 2017
Extending the frequency range of a Hyperlog 7025 / 7040 logarithmic periodic antenna
Apr. 20th 2012
A comparison of active magnetic loop antennas
May 8th 2010
A strange logarithmic periodic antenna design - a short analysis
Apr. 1st 2010
Analysis of the "Electronic Antenna" - a novel antenna design
Apr. 1st 2008
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