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1813 links - and 40 categories

IK1ZYW Vertical antenna - A vertical antenna for stationary-mobile HF-VHF operation. It works on 2-6-10 and 12 meters band.
[ Hits: 15642 | Votes: 8 | Rating: 4.62 ]
Mobile Antennas for 10 Meters - Interesting article on mobile antennas by Cebik, W4RNL
[ Hits: 6644 | Votes: 4 | Rating: 3.5 ]
DK7ZB-5-Band-Quad - 2 element Quand antenna for 10 - 12 - 15 -17 - 20 meters band
[ Hits: 10903 | Votes: 10 | Rating: 7.61 ]

20m T-Monopole - 20m T-Monopole short vertical antenna for 20 meters by AA5TB
[ Hits: 12206 | Votes: 6 | Rating: 8.33 ]

2 Elements HB9CV - 2 meters band HB9CV antenna
[ Hits: 22556 | Votes: 71 | Rating: 5.61 ]

W3FF Portable Dipole - This is the antenna w3ff designed for his walking portable station. It is a dipole constructed out of the plastic plumbing pipe CPVC. There are telescoping whips at the ends of each side of the dipole, and these whips are adjusted to bring the antenna into resonance on each of five HF Bands 10, 12, 15, 17, and 20 Meters
[ Hits: 22067 | Votes: 14 | Rating: 8.13 ]

Transmission Lines - Whenever you choose a coax feedline, the frequency of operation is a very important consideration. Over the operating bandwidth of the coax the VSWR is low, typically 1.2:1 or better. Insertion loss is also an important parameter. It is usually specified in dB/foot and is a linear relationship.
[ Hits: 1274 | Votes: 0 | Rating: 0 ]
SWR: Maximum allowable VSWR - VSWR (voltage-standing-wave-ratio) represents the degree with which an antenna is "matched" to the system impedance. Most modern antennas do not require any tuning for optimum performance. VSWR is one of the easiest parameters to measure and VSWR meters are becoming very popular antenna installation tools
[ Hits: 1239 | Votes: 3 | Rating: 3.33 ]
SWR Calculator - BesserNet Reflectometer is a fun SWR calculator and simulator Java applet
[ Hits: 4091 | Votes: 24 | Rating: 4.6 ]

Swiss Quad for 10 and 6 meters - Based on HB9CV, F6ITV decribes how build a swiss quand antenna for 28 and 50 Mhz.
[ Hits: 21529 | Votes: 22 | Rating: 7.09 ]

Mobile Helix Antennas for HF - Normal mode helix antennas for HF mobile. Photos andn plan for a 20 meters mobile helix antenna by N2MH
[ Hits: 13451 | Votes: 15 | Rating: 7.46 ]

Modified Buddipole for 40 to 10 Meters - This is modified version of buddipole antenna, using vertical wires instead of telescopic ends by ks7j
[ Hits: 6250 | Votes: 7 | Rating: 6.57 ]

Understanding Standing Wave Ratios SWR - We worry a lot about Standing Wave Ratio (SWR) in amateur radio since SWR is one indication of how well our antenna system is working. Most HF transceivers and antenna tuners have built in SWR meters. SWR is a measure of a transceiver' s output power verses the portion of that power reflected by the antenna system
[ Hits: 8718 | Votes: 8 | Rating: 4.75 ]
Antenna Selection Made Easy - This page will help you answer important questions about antenna selection before you talk to a supplier. After reading this paper, you should be able to better determine the most important parameters you need to know for your antenna selection criteria.
[ Hits: 2030 | Votes: 2 | Rating: 3 ]

IK-STIC 2 vertical multiband antenna - The IK-STIC 2 is a vertical, all band, antenna that is over 25 feet tall yet weighs under 5 pounds. Based on a telescopic pipe or a fiberglass fishing pole, using a tuner it can easily cover the amateur radio HF bands from 40 - 10 Meters
[ Hits: 4845 | Votes: 6 | Rating: 5.17 ]

Recording of DX and other signals on 160 meters - Topband and DX recordings and sound files on 160 meters band
[ Hits: 849 | Votes: 0 | Rating: 0 ]

Counter Surveillance - Field Strength Meter - The zap checker is a counter surveillance, bug detector, field strength meter
[ Hits: 830 | Votes: 1 | Rating: 10 ]

W8JI History of 160 Meters - Includes W1BB Stew Perry letters, and a sample QSL cards of dated 1963
[ Hits: 995 | Votes: 1 | Rating: 5 ]

VectorFox - VectorFox is a software born to incorporate a PC into the fox hunting environment. VectorFox is able to take inputs from up to 5 sources, such as a 2m beam, a 2m signal meter, a TDOA, etc, and display the results on the screen. VectorFox also accepts Agrelo inputs. From these results the operator can choose which indication is best and have a line drawn on the map in the direction of the signal.
[ Hits: 1412 | Votes: 0 | Rating: 0 ]

Test & Measurement Equipment Buying Guide - Compare and select Test& Measurement equipment according to its technical parameters; access library of manufacturers specs and data sheets. TestBuyer.com
[ Hits: 489 | Votes: 1 | Rating: 5 ]