40 meters

295 links - and 3 categories

Magnetic Monster Loop Antenna for 160m - I5JVA
A monster magnetic loop antenna for 160 meters band This Magnetic loop is optimized for ...

[ Hits: 858 | Votes: 2 | Rating: 10 ]

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 ]
40 meters band beverage antenna - YO8RXP
The author describes his experience building and using a Beverage antenna for the 40 meter ...

[ Hits: 35 | Votes: 0 | Rating: 0 ]

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 ]
Vertical bazooka antenna for the 40m - ON8IM
A quarter wave vertical omni directional antenna for 7 MHz Formulas for dimensions in feet ...

[ Hits: 135 | Votes: 7 | Rating: 6.85 ]

Capacitive Antenna by DL7JV - DL7JV
Experimenting with capacitive antennas for 40 and 80 meters band A very space saving antenna ...

[ Hits: 167 | Votes: 1 | Rating: 9 ]

Make your own 40/80 Dipole - WA6ESC
Make your own dipole for 40 and 80 meters band assembling standard product parts like ...

[ Hits: 126 | 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: 188 | Votes: 0 | Rating: 0 ]
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 ]

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 ]

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 ]

Arduino QRP Transceiver: DIY Success on HF Bands - M0XPD
This article introduces an Arduino based QRP CW Transceiver designed for lower HF bands The ...

[ Hits: 115 | Votes: 1 | Rating: 1 ]