• Home
  • Mapsite
  • Add Link
  • Contact


Hits

2 elementi Yagi per la banda 40

    Note tecniche e costruttive della 2 elementi Yagi per la banda 40 metri home made OB2-40
2 elementi Yagi per la banda 40
post 22 Mar 2026



Antenna 40 Meter Links →

76



Shortened with 40 turns trap 7 mhz Dipole
To construct each side of the antenna proceed as follows. Cut a 10.25 metre length of 24/0.076 insulated wire, and a 160 mm length of 40 mm o.d plastic tubing

Shortening your dipole
Loaded dipole antenna that is intended to fit in available space

Sloper sloping dipoles 40mt-80mt
Having only a single vertical support or limited horizontal space might be a problem.Such a problem can be solved by mounting a dipole at a slope

Super gain antenna project for 40 meters
It is based on the theory of super gain NVIS arrays, which reject QRM from low angles and produces a very high angle of radiation

Short Antenna per le HF
L'antenna e fatta da 3 parti, la parte radiante con la sua capacita


All Spectrum Electronic

All Spectrum Electronic All Spectrum Electronics Hobby Kits and Electronics Supply

dxengineering Ham Radio Equipment

Dxengineering Ham Radio Equipment DX Engineering Ham Radio Equipment & Supplies

BA-Electronics

BA-Electronics Ba-electronics, a division of products, has added electronic components, test equipment, wire, and supplies to its product offering

    Antennas Type

    10 m, 12 m, 15 m , 17 m, 20 m, 2 m, 23 cm, 30 m, 40 m, 6 m, 70 cm, 80 m| 160 m| 60 m, 136 khz, Bazooka, Beverage, Cb Antenna, Collinear, Cobweb, Dipoles, Delta Loop, Eh, End_fed antenna, EWE Antenna, Fan Dipole, Fractal Antenna, Folded Dipole, G5RV, Halo, Helix, Hentenna, Hidden Antenna, Hf mobile HexBeam, Isotron, Jpole, Loop, Log Periodic, Low Band Receiving, Lideband, Moxon, Multiband, Nvis, Morgain, Ocf Fed Dipole, Quad, Slot, Spiral antenna, Vertical, Vhf-Uhf-Shf, Wifi & Ghz, Windom, Wire, Yagi,
    Ant.Masts and Mounts, Ant.Transmatch, Antenna_Analysis, Antenna Receiving, Antennas Shortwave, Antenna Switch, Balun, Calculator Antenna, Duplex, Feed Lines, Fiberglass tubing, Phased Array, Projects Homebrew, Software Antenna, Software Defined Radio, Swr Meter, System of grounding, Theory, Traps, Tower, Sstv Software, Logging Software, Contest Logging Software, Components and kit, Digital_Mode.html, HF_radio_modifications, Interface Radio, Memory_keyers, Microphone setting, PC sound Radio Interface, Pocket Pc, Preaplifiers, Radio control, Radio Remote control, Radio programming, Radio Transceivers, RF Filter, Spectrum_Analyzer, Tracking satellite, Voice Messages & Keyer
    Radio old Museum, Practice with the soldering, SWL Shortwave DX Radio, Microwave, EME Ham Radio Satellite, Propagation Solar Cycle, Grid Software, Propagation prediction, Qrp low power, Telegraph Morse code, Antennas Satellite, About Rtty mode, Beacon, Band Plan Ham Radio, DX cluster software, PSK31 software, Radio portal, Amateur Television ATV, VHF Activit, Power Supply, PMR 466Mhz, Log Converter Software, Aprs software, Meteor scatter, Surplus radio, Antennas_manufacturers, Packet Radio TNC, Italy provices, Amplifiers, Web SDR, Mac Ham Radio Software, Audio Recording, QSL Printing, QRSS Amateur VLF operating, Prefix World, Sstv Photo, Ham radio Magazine, Ham shirts, Components and kit
Quarter wave 80 meter vertical antenna

Quarter wave 80 meter vertical antenna An RF switch is convieniently mounted at the top to switch between 80 and 160 Meter operation

The Folded Dipole

The Folded Dipole The Folded Dipole is not used much amongst Radio amateurs, probably due to the fact that this antenna uses twice as much wire as a single-wire dipole

Rf Directional Power Meter

15 Element Wire Log-Periodic 7MHz 30MHz Balun necessary, Double-boom 60/18mm, electrically fed = increased gain

Wireless cw iambic memory keyer

Wireless cw iambic memory keyer- Cross country wireless cw iambic memory keyer

The Vocal Keyer

The Vocal Keyer The vocal keyer for Yaesu FT1000 MarkV

Antenna bi-quad

Antenna bi-quad Costruzione di questa antenna biquad dal guadagno di circa 8-10 dB

50 MHz preamp Gain 26dB with the BFG135

50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection

Calcolo induttanza bobina in aria

Calcolo induttanza bobina in aria Nei dati immessi usare il punto (.) come separatore e non la virgola

Terms of Use - Copyright - Privacy Policy