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2m Band VHF Antenna Pre-Ampilfier

2m Band VHF Antenna Pre-Ampilfier
    By adding the following vhf pre-amp as 1st stage, the improving of sensitivity is spectacular, the pre-amp including also a band-pass input filter which rejects any undesirable
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post 16 Sep 2026



Antenna for UHF VHF Links →

154



222 MHz 6 Element Delight Yagi Antenna
    This antenna is short and light, all round tubing elements were cut with a plumber's tubing cutter


2m skeleton siot yagi stack
    The skeleton slot provide an ingenious to feed two stack yagi antennas her is my design


3 element VHF Yagi antenna 144M/148
    All tubes aluminum copper or brass 10mm,boom needed 570mm,element lenght: R=1010 mm, Drv= 980 mm, D= 918 MM


433.92 MHz Yagi Antenna
    70 cm experimentation is a home built yagi, all of the measurements are in inches


5 el yagi for 144mhz
    Swr adjustment with gamma match



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

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4 Band CW QRP Transceiver

4 Band CW QRP Transceiver Homebrew 4-bander cw qrp transceiver for the homemaker, the design is based on a classic dc receiver and a class c transmitter

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

Antenna Longwire lunghezza casuale

Antenna Longwire lunghezza casuale Vi occorre un antenna semplice e di sicuro funzionamento, in pochi minuti potrete costruirvi una Long Wire di lunghezza casuale

The Vocal Keyer

The Vocal Keyer The vocal keyer for Yaesu FT1000 MarkV

Homebrew T-Match Antenna Tuning Unit

Homebrew T-Match Antenna Tuning Unit Build a new ATU that would cover 160m and also handle much more power

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

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