no ground

77 links

80m Inverted-L 12m Spiderpole - DJ0IP
An Inverted L with its long leg sloping to the ground It will still work ...

[ Hits: 150 | Votes: 0 | Rating: 0 ]

Corned Fed Delta Loop - LA8OKA
Author found a ratio between the lengths of the sides of the Delta Loop that ...

[ Hits: 169 | Votes: 0 | Rating: 0 ]

Beverage Receive Antenna - W7VO
The Beverage we use is a DX Engineering RPS 1 dual directional 360 foot 109 ...

[ Hits: 152 | Votes: 4 | Rating: 7.25 ]
The Reversible BOGs - HC1PF
The author struggled with receiving antennas on his property After a standard Beverage on Ground ...

[ Hits: 23 | Votes: 0 | Rating: 0 ]
An Overview of Beverage Receiving Antennas - N0AX
This article explores Beverage antennas a type used for low frequency radio reception Despite the ...

[ Hits: 19 | Votes: 0 | Rating: 0 ]

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 ]
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 ]

Budget-Friendly QRP T-Tuner and SWR Bridge - KD6RF
In the pursuit of an affordable matching and SWR indication solution for the Pixie based ...

[ Hits: 84 | Votes: 0 | Rating: 0 ]

Vertical Windom Antenna Project - CT1DDW ^new
This DIY vertical multi band Windom antenna offers a practical and effective solution for amateur ...

[ Hits: 142 | Votes: 1 | Rating: 10 ]

Pirate QSL Collection - hfunderground
A QSL Cards collection divided into North American Shortwave Pirate Radio QSLs abd European Shortwave ...

[ Hits: 118 | Votes: 0 | Rating: 0 ]

Playground Amateur Radio Club - KI4ZER
The Playground Amateur Radio Club has be in service to the Northwest Florida Panhandle since ...

[ Hits: 13 | Votes: 0 | Rating: 0 ]

Propagation on 630 Meters and 2200 Meters - K9LA
This is a theoretical look at propagation on 630 Meters and 2200 Meters using ray ...

[ Hits: 40 | Votes: 1 | Rating: 10 ]

Spy Numbers Stations - hfunderground
Spy Numbers Stations are shortwave radio stations that are speculated to have been broadcasting since ...

[ Hits: 177 | Votes: 0 | Rating: 0 ]

A Tutorial on the Decibel - W1ICW
This tutorial provides background information on the decibel and instructions for performing calculations involving decibels ...

[ Hits: 353 | Votes: 1 | Rating: 7 ]

How to Ground an Antenna: aerial earthing - Electronic Notes
The antenna ground or earth system can be key to its operation whilst also being ...

[ Hits: 233 | Votes: 1 | Rating: 4 ]

Signal to Noise Ratio SNR - KF6HI
Signal to Noise Ratio definition and application to Radio Communications Signal to Noise Ratio SNR ...

[ Hits: 134 | Votes: 5 | Rating: 8.4 ]