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Antenna for 40- meter Band with Short Counterpoises

Antenna for 40- meter Band with Short Counterpoises: By: Nikolay Kudryavchenko, UR0GT

For good operation a vertical antenna in height of lambda/4 requires good ground or several counterpoises in length of lambda/4. However it is often not possible condition in amateur site at the place of the antenna...

 

PDF file, 173 KB (ANTENTOP-01-2021, pp.:30- 31)

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Contents for AntenTop 01- 2021

 

 

Antenna in Height of Lambda/4 with Lengthening Coil at the Base

 

 

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Antenna Theory	Helical Antennas	Useful Pieces	Simple Keys
Antenna Practice	TV Antennas	Propagation	QRO HF Tube Amplifiers
136 kHz- Antennas	Coaxial cables	LDE	QRO HF Transistor Amplifiers
HF- Antennas	Two wire lines	Interferences	QRP
HF- RX Antennas	Feeder's Toolkit	Filters TVI/RFI	QRP PA
50- MHz Antennas	HF ATU	Homebrew Receivers	Radio and Ham History
VHF- Antennas	ATU for the 6- meters	Homebrew Transmitters	Old Russian/USSR Radio Equipment
UHF -Antennas	Antenna Parts	Matching Circuit for P.A	Amateurs Awards
EH- Antennas	Antenna Towers	QRP Transceivers	Free Radio and Electronics e- Books
TV Channels and Frequencies	Reception of Weather Stations	Useful Data	FM Radio Channels and Frequencies
MagLoop Antennas	Home-Brew Technics in Antenna Tools	PSU for Amateur Radio from Computer	Free Programme and Utility
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Last Updated:

December 8, 2021 23:22