sw antennas

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91 links - and 1 categories

Antennas : 2M
  • 2m VHF antennas with high gain - 2m SSB/CW-12.5 Ohm Yagis with extrem high gain and small bandwidth. These Yagis were constructed as ultra-light, portable Yagis with extrem high gain. They have small bandwidth and are working from 144,0-144,8MHz with good SWR.
    [ Hits: 7475 | Votes: 9 | Rating: 7.23 ]
Antennas : 70cm
  • 440 Mhz J-Pole Antenna plans  pop - Here is a 70cm (440 Mhz) J-Pole antenna that is inexpensive, and easy to build. Author use 1/2 inch copper pipe, and the associated fittings necessary. The dimensions aren't typical however, this is what it took to get its SWR low.
    [ Hits: 18084 | Votes: 37 | Rating: 4.91 ]
Antennas : Baluns
  • WB6ZQZ 3 in 1 Balun - Builing a triple ration balun, that match resonant antennas from 9 ohms to 75 ohms with 1.5:1 or less SWR
    [ Hits: 6190 | Votes: 7 | Rating: 7.00 ]
Antennas : Beverage
  • Beverage switching box - Sharing beverage antennas with this switch boxes is possible.
    [ Hits: 4948 | Votes: 2 | Rating: 1.50 ]
Antennas : Feed Lines
  • 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: 1107 | Votes: 3 | Rating: 3.33 ]
  • Build An LF Antenna Analyzer - A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.
    [ Hits: 4335 | Votes: 2 | Rating: 5.00 ]
Antennas : Loop
  • Loop Antenna News and Information Forum - This is the Loop Antenna Group to Ask Your Questions, Get Answers and Information about Loop Antennas for improved your Radio Listening and Enjoyment.
    [ Hits: 1237 | Votes: 1 | Rating: 1.00 ]
Antennas : Magnetic Loop
  • Magnetic Loop antennas - Pictures, designs and answer to common questions on building magnetic loop antennas by ON4CEQ Van Herck
    [ Hits: 1767 | Votes: 3 | Rating: 7.67 ]
  • Magnetic Loop Antenna FAQ - Magnetic Loop Antennas for HF common questions and answers
    [ Hits: 795 | Votes: 0 | Rating: 0.00 ]
Antennas : Mobile
  • Antenna Tuning - Tuning mobile and base antennas, measuring SWR.
    [ Hits: 6341 | Votes: 3 | Rating: 5.00 ]
Antennas : Theory
  • 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: 1868 | Votes: 2 | Rating: 3.00 ]
Internet and Radio : Online Receivers
  • HB9Z Internet Remote Base - A controllable TS2000 made available at HB9Z in switzerland. Antennas are Carolina Windom 160 for 160-10m, a 5-Element Beam for 20-15-10m a G5RV for 80-10m and a V2000-Vertical for 6m, 2m, 70 cm.
    [ Hits: 6935 | Votes: 29 | Rating: 4.21 ]
Manufacturers : Amplifiers
  • SSB Electronic USA - manufactures and distributes HF, VHF, UHF and SHF equipment covering 10MHz. - 47.0GHz. Our products include: Wireless LAN / WAN Bidirectional Linear Amplifiers, Low Noise Preamplifiers - LNA's, RF Linear Amplifiers, Relays, Transverter Systems, Frequency Translation Systems, Downconverters, Antennas, Parabolic Dishes, Coaxial Cable, Relays, Antenna Switches, Microwave Test equipment, PC controlled Receivers, Microwave Linear Amplifiers including models for Telemetry, Wireless, and CDMA applications.
    [ Hits: 7662 | Votes: 5 | Rating: 7.00 ]
Manufacturers : Antenna Switches
  • Alpha Delta Communications - Manufacturers and distributors of coaxial surge protectors, coaxial switches, insultators, HF fixed wire antennas
    [ Hits: 2729 | Votes: 4 | Rating: 5.83 ]
Manufacturers : Transceivers
  • Jetstream - Antennas, base mobile scanner and vhf antenna, coax cables, coax switch, Lightning Arrestor, mounts, power supply, speakers and wattmeters
    [ Hits: 5329 | Votes: 4 | Rating: 5.50 ]
Shopping and Services : Regional : USA
  • Wadsworthsales - Manufacturer's representative of wireless communication radio equipment, 2-way radio sales, land mobile radio sales, repeaters, duplexers, antennas, pl tone, hf, vhf and uhf data modems and LAN ethernet radio modems for commercial and amateur radio users.
    [ Hits: 352 | Votes: 0 | Rating: 0.00 ]
Shortwave Radio : Beginner's guides
  • Getting Started in SW Listening - Excellent and exaustive guide to shortwave listening offered by monitoringtimes, includes operating guides, technical suggestions, buying guieds, antennas implementations and more, all what is needed by shortwave listening beginners.
    [ Hits: 4532 | Votes: 14 | Rating: 7.36 ]
Software : Antenna analysis
  • Meter Mate - SWR Graph Software - Meter Mate is a companion utility for your directional watt meter that allows you to calculate the SWR reading when the forward and reflected power readings are measured. In addition to calculating the antenna system SWR Meter Mate will also plot the SWR curves of all of your antennas onto graphs that may be printed out.
    [ Hits: 1664 | Votes: 11 | Rating: 5.26 ]
Technical Reference : Antenna Switch
  • Beverage antenna switch - How could we share the Beverage antennas on more than one station using this homemade remote antenna switch, a project by TK5EP
    [ Hits: 1395 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Duplexers
  • AA5TB Antenna Coupler / SWR Bridge - Wire antennas requires a special coupling network to properly couple my 50 ohm coax to the antenna's high impedance (5000 ohms)
    [ Hits: 4428 | Votes: 2 | Rating: 9.50 ]
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