EFHW emissions violate FCC rules

Поделиться
HTML-код
  • Опубликовано: 20 окт 2024
  • A spectrum analyzer is used to show the magnitude of the harmonic emissions caused by the ferrite core in an EFHW antenna. These spurious emissions exceed the level allowed by FCC rules. Also shown is how to make a 50 Ohm dummy load with a -40db signal tap.
    Watch these videos for complete context.
    • EFHW Antenna Power Rating
    • EFHW Spurious Emission...
    • Heatsink Science or ho...

Комментарии • 104

Следующие
Автовоспроизведение
Best Vertical Antenna For Portable Operation...DIY POTA ANTENNA13:00Best Vertical Antenna For Portable Operation...DIY POTA ANTENNA
Best Vertical Antenna For Portable Operation...DIY POTA ANTENNAJim's cool stuff
Просмотров 8 тыс.
Explaining End Fed Half Wave Antennas & Experimentation41:29Explaining End Fed Half Wave Antennas & Experimentation
Explaining End Fed Half Wave Antennas & ExperimentationHam Radio DX
Просмотров 63 тыс.
Erecting the MyAntennas.com EFHW-8010 End-fed Half Wave Antenna and Initial Testing (#295)14:20Erecting the MyAntennas.com EFHW-8010 End-fed Half Wave Antenna and Initial Testing (#295)
Erecting the MyAntennas.com EFHW-8010 End-fed Half Wave Antenna and Initial Testing (#295)David Casler Ask Dave
Просмотров 90 тыс.
END FED HALF-WAVE ANTENNAS - BEWARE! WHY?13:11END FED HALF-WAVE ANTENNAS - BEWARE! WHY?
END FED HALF-WAVE ANTENNAS - BEWARE! WHY?watersstanton
Просмотров 101 тыс.
The Truth about SWR: Debunking the Myths and Misunderstandings13:08The Truth about SWR: Debunking the Myths and Misunderstandings
The Truth about SWR: Debunking the Myths and MisunderstandingsDXEngineering
Просмотров 31 тыс.
How to wind an End Fed Half Wave Autotransformer12:14How to wind an End Fed Half Wave Autotransformer
How to wind an End Fed Half Wave AutotransformerMM0OPX Field Radio
Просмотров 10 тыс.
How To Measure Ferrites using a NanoVNA21:13How To Measure Ferrites using a NanoVNA
How To Measure Ferrites using a NanoVNAHam Radio DX
Просмотров 22 тыс.
HAM RADIO: Whats better a 64:1 or 49:1 Build and Test14:43HAM RADIO: Whats better a 64:1 or 49:1 Build and Test
HAM RADIO: Whats better a 64:1 or 49:1 Build and TestMike-M0MSN
Просмотров 40 тыс.
Making The ARRL 40-10 EFHW Sing on 80 Meters (#939)14:18Making The ARRL 40-10 EFHW Sing on 80 Meters (#939)
Making The ARRL 40-10 EFHW Sing on 80 Meters (#939)David Casler Ask Dave
Просмотров 7 тыс.
EMC and FCC Certifications in 5(ish) Minutes6:46EMC and FCC Certifications in 5(ish) Minutes
EMC and FCC Certifications in 5(ish) MinutesMicroType Engineering
Просмотров 6 тыс.
Low Loss EFHW Ham radio HF antenna antenna tests. Do capacitors matter ? DIY and save your money !21:12Low Loss EFHW Ham radio HF antenna antenna tests. Do capacitors matter ? DIY and save your money !
Low Loss EFHW Ham radio HF antenna antenna tests. Do capacitors matter ? DIY and save your money !SurvivalComms
Просмотров 6 тыс.
EFHW Antenna - Here is One Version to Ignore7:28EFHW Antenna - Here is One Version to Ignore
EFHW Antenna - Here is One Version to Ignorewatersstanton
Просмотров 17 тыс.