2 elements Half Square antenna, 40 Meters band @2025: Rebuild it using T94-6 toroids as switchable inductances instead stubs. This year, a 12-16 dBÂ F/B ratio was observed. Will be fully tested in CQWW CW 2025. @2024: Good value for a simple antenna. F/B ratio is not even a 6 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