4 wire

282 links

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 ]

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 ]
Delta Loopy Ideas - VA3KOT
Setting up a portable wire delta loop antenna with an MFJ 33ft telescopic fiberglass pole ...

[ Hits: 104 | 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 ]
Multi-Band End-Fed Antenna Design for Limited Space - PA3DWC
This document details the construction of a multi band end fed antenna suitable for situations ...

[ Hits: 77 | Votes: 0 | Rating: 0 ]

Comparing Mobile whip versus EF HW Vertical - PH0NO
PH0NO conducted field tests comparing a mobile antenna DX UHV to an end fed half ...

[ Hits: 81 | Votes: 0 | Rating: 0 ]
Full size 80m End Fed Half Wave Antenna - G4WIF
The author reflects on expanding their antenna for 80m coverage during lockdown They extend the ...

[ Hits: 99 | 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 ]

A Compact and Stealthy Field Portable Antenna - VA3KOT
In the quest for an ideal field portable antenna the author recounts experiments involving various ...

[ Hits: 156 | Votes: 1 | Rating: 1 ]

Active 3-30 MHz Hula-Loop Antenna for Shortwave - Charles Wenzel
This active antenna for the shortwave band provides surprising performance even indoors As the name ...

[ Hits: 160 | Votes: 1 | Rating: 10 ]
Dual-Band X-Frame Shortwave RX Loop Antenna - KD6RF
A dual band X frame wire antenna made using 4 turns for response down to ...

[ Hits: 148 | Votes: 1 | Rating: 10 ]

The Infamous Attic Dipole - AF4PS
An attic wire antenna with several modifications during the time Began as a simple coax ...

[ Hits: 102 | Votes: 0 | Rating: 0 ]

Variations on a Dipole - AF7NX
Antenna patterns are all about interference Presentation on wire antennas for HF bands Dipoles horizontal ...

[ Hits: 98 | Votes: 0 | Rating: 0 ]

Cloverleaf Antenna - Oscarliang
Cloverleaf antenna is a circular polarized antenna which is way better than the cheap dipole ...

[ Hits: 64 | Votes: 0 | Rating: 0 ]

The Squid Pole Wire Antenna Re-visited - VK4ADC
The author explores enhancing the performance of a 7 meter fiberglass squid pole wire antenna ...

[ Hits: 92 | Votes: 0 | Rating: 0 ]
Wire on the Ground: Portable Radio Success with Grasswire Antenna - VA3KOT
The author shares a unique experiment with a 200ft Grasswire antenna laying wire directly on ...

[ Hits: 103 | Votes: 0 | Rating: 0 ]

DIY Tree Antenna Launching: Cheap and Effective - VA3KOT
This article explores budget friendly methods for launching wire antennas into trees comparing common options ...

[ Hits: 122 | Votes: 0 | Rating: 0 ]

A Comparative Study of APRS Tracks with 1W and 100mW LoRa Trackers - IZ7BOJ
Exploring LoRaWAN Range comparing the performance of 1Watt and 100mW LoRa trackers on daily commute ...

[ Hits: 48 | Votes: 0 | Rating: 0 ]