Ham Radio Downloads

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

     Antennas  and rotators    

 

 

 

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

 

Dualband Feed for EsHail-2

 

Mar. 25th
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

 

The WellGood active loop antenna tested with the Airspy HF+ SDR

 

Apr. 10th
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

Please note that I retain the copyrights on all articles. If you want to make use of them other than for your personal purpose please send me a request to


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