Все о 20 метровых антеннах

• 20MTR Beam antenna by N3FJP
• 20 to 10 meters Yagi optimizing NW3Z - antenna designs for Dayton 2001
• Antenna 20 Meters 6 Element 48' boom
• Antenna 20/15 Meters 12 Element Interlace WP3R
• LATTIN 5 BAND ANTENNA - A interesting HF antenna
• All Band Dipole - No Tuner
• Antenna Here is a Dipole (1,677,174 bytes, PDF file) QST June 1991, pp. 23-26 Step-by-step tutorial on constructing dipoles for any one of the HF bands from 1.8 to 28.4MHz.
• Multiband Dipoles Compared (26,496 bytes, PDF file) QST November 1996, pp. 73-74 A comparison of different multi-band dipole techniques.
• Dipole Multibander 160/80/40/30/20/17/15/10 meters by EA2CMW
• Antena beam 14 Mhz 5 elem. -en espanol- de JR1MAF
• YagiMax Antenna Design
• A 3-Element Mono-Band Yagi for 20 meters by PA5CW
• An Hexagonal Beam in 3 hours...
• Restricted Space Antennas
• HF dipoles antennas 10-160 meters
• Cubical Cuad 5 Bands by EI7BA
• ROTARY DIPOLE FOR 17 AND 20
• Four Square Vertical Phased Array -- From The Yankee Clipper Contest Club
• G5RV Multi-Band Antenna The G5RV antenna, with its special feeder arrangement, is a multiband centre-fed antenna capable of very efficient operation on all hf bands from 3.5 to 28 MHz.
• Simple Gain Antenna for the Beginner (778,544 bytes, PDF file) QST August 1981, pp. 32-35 A tutorial on the Yagi antenna with construction of a two element beam for 10-, 15-, or 20-meters.
• HF All-Band, No-Tuner, Horizontal, Center-Fed Antenna From W5DXP
• Dipole Dual DX Antenna - 20 and 15 meters From NB6Z
• K5OE Antennas -- HF Antennas - 10/15/20 m Dipoles
• 20 meter Extended Double Zep From NB6Z
• Windom - 6 Bands - From K3MT and daughter KF4LGR
• VE3GK's Homebrew Site -- 7Element 20M Yagi 63ft Boom
• W9INN Antennas - Five band - 10-15-20-40-80M with resonance on each band -- Via AB7SL
• Attic Antenna -- From NU3E -- An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 40, and 80 Meters
• Dipole Antennas by SM?VPO
• Antenna 20 Meters 6 Element 48' boom
• Antenna 20/15 Meters 12 Element Interlace for WP3R
• Hexagonal Beam in 3 hours by EI7BA
• Rock Loop Atenna For 10, 14, and 21 MHz
• Attic Coaxial-Cable Trap Dipole - for 10, 15, 20, 30, 40, and 80 Meters from NU3E
• HF- and VHF-Yagi-antennas - by DK7ZB
• The $4 Special - An all-band wire antenna by W1GFH
• Antennas for HF, VHF, UHF, Mobile
• SM?VPO/G4VVJ projects antenna, kits, download
• No Trap Multi-Band Vertical Antenna System, by W8LF
• All-band Wire Antenna - by  WB1GFH
• Copper Cactus (Multi-Band J-Pole) With Drawings  
• Optimised Wide Band Antenna - This is a about a new tri-bander designed at PSU

COMMERCIAL ANTENNAS:

• VEC-896 2/6/10/15/20/40 6 Band Vertical