ground plain
7 links
- 80 Meter Shortened Ground Plain Antenna
- This antenna is a vertical loop antenna mounted on a 8 meters high grounded mast with an input impedance of 50 Ohms without a matching device
[ Hits: 443 | Votes: 1 | Rating: 5 ]
- Horizontal Half-wave Dipole above a Counterpoise
- All antennas that are situated close to the ground are affected by that ground to some extent. This article explain effects and benefits of counterpoise.
[ Hits: 1271 | Votes: 0 | Rating: 0 ]
- Portable Vertical Antenna
- A home made portable vertical antenna, that with a single 1/4 wave counterpoise wire is possible to achieve less than 1.5:1 SWR on 40, 30, and 20 meter bands. It is basically a center load, shortened ground plain vertical antenna.
[ Hits: 362 | Votes: 0 | Rating: 0 ]
- Modified Ground Plane Antenna Adds Second Band
- This article explains the trick of how to shorten and lengthen pairs of radials to make a 2-band ground plane antenna.
Included is a "Table of Multi-Band Possibilities" covering the range of 6 to 40 meters.
[ Hits: 53 | Votes: 0 | Rating: 0 ]
- How to use Baofeng UV-B5 flash light switch for LCD background light
- Baofeng UV-B5 LCD background light is turned on only when some keys are pressed and stays on far a very short time. This article explains how to use flash switch which is used in UV-B6 version but in UV-B5 has no function.
[ Hits: 292 | Votes: 1 | Rating: 10 ]
- Grounding HF Transceiver using Coax Cable
- Improper grounding or earthing system can cause several unwanted RF interferences (RFI) to television sets, broadcast receivers, hi-fi sets and telephone sets.
In this Article the author explain how to setup a proper radio shack grounding using coaxial cable and ceramic disc capacitor
[ Hits: 1283 | Votes: 4 | Rating: 7.75 ]
- SNR Signal to Noise Ratio
- Signal-to-noise ratio is defined as the ratio between the desired signal, and the background noise.
In this article, SNR is explained in the deep
[ Hits: 357 | Votes: 2 | Rating: 2.5 ]
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