40 m antenna

509 links - and 10 categories

SAFARI 40-30m vertical Antenna - G3RWF
Roach pole vertical antenna for 40 and 30 meters band featuring good performance on short ...

[ Hits: 315 | Votes: 0 | Rating: 0 ]

Spiral Dipole Antenna for 40m - Ivan
This antenna is an off center fed spiral dipole for 40 meters The spiral dipole ...

[ Hits: 296 | Votes: 3 | Rating: 7 ]
Low Bands Battle Creek Antenna - PI4CC
This antenna is designed for 40 80 and 160 meters to complement a tri band ...

[ Hits: 137 | Votes: 0 | Rating: 0 ]
40m Wire Antennas Comparison - PH0NO
On the field comparison among C Pole antenna an EFHW vertical antenna and an Inverter ...

[ Hits: 172 | Votes: 1 | Rating: 3 ]

Shortened 40 meter Vertical for POTA SOTA - WB8ERJ
Build A Shortened 40 Meter Vertical antenna For POTA SOTA Activations A project for a ...

[ Hits: 126 | Votes: 1 | Rating: 10 ]

Microvert Antenna for 40m by ON7IR - ON7IR
A mircovert antenna assembled for the 40m version of the DL7PE antenna A one meter ...

[ Hits: 154 | Votes: 0 | Rating: 0 ]

160m Inverted Delta Loop - IK1MNJ
This 160 meter Delta Loop antenna is made of Hard drawn copper wire AWG 10 ...

[ Hits: 115 | Votes: 0 | Rating: 0 ]

160-80-40 Metre Trapped V-Dipole - VK4ADC
A Trapped dipole inverted V antenna for lower HF Bands Construction details are for temporary ...

[ Hits: 110 | Votes: 0 | Rating: 0 ]

Multiband portable wire antennas - OZ1CX
Vertical end fed antenna used for portable operations The antenna will work on 80 with ...

[ Hits: 187 | Votes: 0 | Rating: 0 ]
End Fed Antenna for WARC Bands - PA3DWC
I used a FT 240 43 for much more power not needed but beter safe ...

[ Hits: 189 | Votes: 1 | Rating: 3 ]
8010 Enfed Antenna - F5NPV
With this antenna the coverage is 80 40 20 15 and 10 meter band without ...

[ Hits: 142 | Votes: 0 | Rating: 0 ]

End fed half wave antenna 40/30/20m - TK5EP
For my SOTA activities i recently bought a QRP transceiver QRP SW 3B which is ...

[ Hits: 170 | Votes: 0 | Rating: 0 ]
End-Fed Half-Wave Antenna for 20m 40m 80m - VA3KOT
How to Design and Build a Field Expedient End Fed Half Wave Antenna for 20m ...

[ Hits: 142 | Votes: 1 | Rating: 4 ]
HF EFHW Antenna Antenna Tuner - ZL2CTM
Schemaric diagram for a 80m 40m 30m 20m EFHW Antenna Antenna Tuner The tuner has ...

[ Hits: 120 | Votes: 0 | Rating: 0 ]

RF Choke with Bifilar Windings - rjbono
This article presents an RF Choke featuring an 11 bifilar turn winding of 14 house ...

[ Hits: 87 | Votes: 0 | Rating: 0 ]

K1FM Mini Magnetic Loop - K1FM
Original HF magnetic loop antenna designed by the author to work in conjunction with QRP ...

[ Hits: 118 | Votes: 1 | Rating: 8 ]
Outdoor 80m/40m bands Magnetic loop antenna - PA0NHC
No matching adjustments needed Directly perfect match to 50 Ohms using a remotely switched wideband ...

[ Hits: 225 | Votes: 0 | Rating: 0 ]

Open-Folded W8JK Antenna for HF - F5NPV
Originally designed by John Kraus W8JK in about 1940 this antenna has some interesting properties ...

[ Hits: 141 | Votes: 1 | Rating: 3 ]

The Weird Antenna Wire End Effect - VA3KOT
A half wave wire that is tuned for resonance on 80m will NOT be resonant ...

[ Hits: 95 | Votes: 0 | Rating: 0 ]

Modified Ground Plane Antenna Adds Second Band - Dick Reid, KK4OBI
This article explains the trick of how to shorten and lengthen pairs of radials to ...

[ Hits: 53 | Votes: 0 | Rating: 0 ]