ferrite core antenna
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- Beverage Transformers for HF Receiving Antennas
- This FAQ covers building and buying transformers for loop-on-ground and Beverage antennas. Building one uses ferrite cores and thin wire. Buying is an option, with the DX Engineering BFS-1 being recommended. These transformers isolate the antenna from the cable to prevent unwanted signal pickup.
[ Hits: 20 | Votes: 0 | Rating: 0 ]
- EFHW autotransformer comparison
- Two different ways to create autotransformer for end fed half wave wire antennas, by using ferrite or air core.
[ Hits: 525 | Votes: 3 | Rating: 2 ]
- Chokes and Isolation Transformers for Receiving Antennas
- Chokes and isolation transformers are essential for receiving antennas to mitigate common mode current, which induces noise and interferes with signal quality. Common mode chokes, formed by winding feedline through ferrite cores, block unwanted current effectively. Proper selection of core material and winding turns ensures resonance near the operating frequency, reducing interference. Isolation transformers further minimize interference, crucial for multi-transmitter stations.
[ Hits: 59 | Votes: 1 | Rating: 9 ]
- Performance of 49:1 Ferrite Core Transformers
- There are quite a few recipes for building a suitable transformer for an end fed half wave antenna (EFHW), but I was never sure I really understood the main principles. So, I wound a bunch of transformers, made measurements on them using my NanoVNA, learned how to get what I really wanted out of the VNA measurements, and in the process discovered how to build better transformers and be able to predict what they will do
[ Hits: 151 | Votes: 4 | Rating: 7 ]
- Palomar Engineers
- RFI Kit, ferrite cores, baluns, loop antennas, antenna tuners and various accessories
[ Hits: 7897 | Votes: 16 | Rating: 5.87 ]
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