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160 Meter Antennas at W8JI
160-meter vertically polarized transmitting antennas center around this 200-foot tower

[ Hits: 3964 | Votes: 1 | Rating: 10 ]
Vertical antenna for 160 meter
This high antenna require a large ground composed by 40 radials It s not very ...

[ Hits: 4137 | Votes: 1 | Rating: 10 ]
160-meters antenna problems and solutions
Bill Orr W6SAI ham radio techniques Improving ground connection computer analysis of the antenna modelling ...

[ Hits: 3519 | Votes: 6 | Rating: 9.3 ]

The ground image vertical antenna
A 20 meter quarter wave vertical antenna by jerry sevick W2FMI QST Article

[ Hits: 5927 | Votes: 4 | Rating: 7.25 ]

NVI 40 Meter Antenna Modeling
The idea of using a low mount dipole enhanced with reflector wires directly beneath the ...

[ Hits: 3009 | Votes: 0 | Rating: 0 ]

6 Meter 5/8 Wave Vertical Antenna
The G3JVL 6 Meter ground plane vertical is a compact antenna that is ideal for ...

[ Hits: 18941 | Votes: 11 | Rating: 6.28 ]
K0FF's 6 meter SLOOP antenna - K0FF
It is more or less omni directional and horizontally polarized it s just a dipole ...

[ Hits: 4050 | Votes: 9 | Rating: 5.01 ]

A Stealthy 75 meter antenna
The 75 meter dipole at K7ZB was put up to meet the need for making ...

[ Hits: 13690 | Votes: 3 | Rating: 4 ]

Transmission Lines
Whenever you choose a coax feedline the frequency of operation is a very important consideration ...

[ Hits: 1276 | Votes: 0 | Rating: 0 ]

G5RV vs. Ground Plane on 80M
Comparison tests by WF7T of a G5RV antenna vs a GP antenna on 80 meters ...

[ Hits: 1549 | Votes: 3 | Rating: 7 ]

A 5 band log periodic dipole array
Modified version of the Telerana antenna which was orginially featured in the July 1979 issue ...

[ Hits: 10005 | Votes: 12 | Rating: 6.59 ]

EA5XQ's Projects: Magnetic Loop
Due to my job I have top travel a lot around the world in order ...

[ Hits: 1853 | Votes: 0 | Rating: 0 ]

Understanding Standing Wave Ratios SWR - KJ6RZ
We worry a lot about Standing Wave Ratio SWR in amateur radio since SWR is ...

[ Hits: 8721 | Votes: 8 | Rating: 4.75 ]
A Modern Thermocouple Ammeter
Thermocouple ammeters are very rare these days but the job they were perfect for measuring ...

[ Hits: 2874 | Votes: 2 | Rating: 6 ]
Effects of Very Large Ground Screens
A theoretical and experimental study of the effects of very large ground screens on 20 ...

[ Hits: 468 | Votes: 0 | Rating: 0 ]

6m vertical antenna
G3JVL Six meters ground plane vertical is a compact antenna that is ideal for portable ...

[ Hits: 12376 | Votes: 20 | Rating: 6.96 ]

1721 Hf Roundtable Group On 40 Meters! - Don
The 1721 HF Roundtable Group meets nightly on 7 261 QRM Just a big ham ...

[ Hits: 1243 | Votes: 11 | Rating: 9.37 ]

IonoProbe - Alex
Monitors the space weather parameters essential for HF radio including SSN SFI Ap Kp X ...

[ Hits: 2216 | Votes: 11 | Rating: 5.37 ]

Homebrew HF Amp with 3CX3000F7
Grounded grid triode HF linear amplifier with pictures and schematics diagrams by W2DTC The amp ...

[ Hits: 3274 | Votes: 9 | Rating: 6.33 ]