2 elements Half Square antenna, 40 Meters band Tuned but not yet tested as efficiency. Will do it during CQ WW CW contest 2024. Due to terrain configuration, is somehow tilted. Hardware 2o meters long. 6 meters apart. 11 meters above ground. 1 relay box. Capabilities Monoband 6.8 dBi @ Read more…
Have a question? mailto: gabriel@yo8rxp.com My home made antenna tower Goal is to design and build a low height antenna tower , self supported and strong enough to withstand antenna, Ice, winds and my own 110 Kg weight 12 Meters height 50×50 cm square type Bottom mount rotator Vertical aligned Read more…
Step 1 theory…..will be tested in a near future ! 3 Elements bidirectional Inverted Vee @ 20 meters band This antenna was previously tested as relays East / West pattern switch but it is very difficult to operate it during contest and one can loose points and multipliers due to Read more…
14 December 2020 status update : Instead of 200 meters long I have elected to use 1.7 wavelengths as most publications are stating, also less problems installing it. So, a nice 70 meters long insulated copper wire was installed at 2-3 meters up supported by tree branches. Got one threaded Read more…
2020 October 10 Contest antenna 40 meters band 3 elements inverted vee Compare with 2 el. Delta loop Flip relays schematic Best regards to Ron, ve3vn for nice article as inspiration source. Requirements 1 East / West electric flip 2 x 1.8 uH inductors – 10 turns on T68/2 Amidon cores2x DPDT Read more…
Ever wanted a high gain (ish) directive antenna on the cheap ? Tower + antenna + rotator is too expensive ? Well, it is about time to build a directive antenna using wood poles, some wires and ropes, 3 plastic boxes , 4 SPST 12V relays, 2 T92-2 toroids and Read more…
Here is my daughter Amelia drawing ham radio activities. From left to right: Dad raising an inverted Vee Making path for a Beverage antenna Icom IC-7300 blue waterfall Dad chasing DX’s during contest
Love it / hate it ! 40 meters 2 elements delta loop antenna Very unstable antenna depending by ground humidity ! In 2021 I simply could not replicate it even though same wires / poles and location used as before How to : 2020 : First build and test Why Read more…
Since this article is not 100% original , I will post the source links on the bottom of this page Goal was to achieve a single pole directive wire antenna using cheap and ordinary materials What came to my attention was a document published by LZ1AQ where he fulfilled my Read more…