Search Results for "antenna hf"698 links - and 17 categories
Antennas : 2M
- G4CQM Homebrew VHF Yagi antennas
- Homebrew VHF Yagi 50MHz 144MHz 432MHz 1296MHz 2320MHz 6M 2M 70CM 23CM 13CM Yagis
[ Hits: 17997 | Votes: 94 | Rating: 8.46 ]
- A portable 2-element VHF yagi
- Build a portable VHF yagi antenna for 2 meters. All you need is two rabbit ear antennas from Radio Shack, two CATV baluns, four feet of 3/4 CPVC pipe with one tee.
[ Hits: 25417 | Votes: 21 | Rating: 5.38 ]
- 80 Meter vertical Loop
- An 80 meter band vertical loop antenna setup at PA3FUN
[ Hits: 667 | Votes: 0 | Rating: 0.00 ]
- G5RV All-Band HF Antenna
- ABout g5rv antennas,with radiation pattern produced with eznec by K2HQ
[ Hits: 29006 | Votes: 12 | Rating: 4.08 ]
- G5RV multi-band antenna
- Multi-band centre-fed antenna capable of very efficient operation on all HF bands, specifically designed with dimensions which allow it to be installed in gardens and other open spaces which accommodate a reasonably-straight run of 31.1m (102 ft) for the flat-top standard model.
[ Hits: 6377 | Votes: 7 | Rating: 7.86 ]
- G5RV Multiband hf antenna
- info on G5RV antennas by yb0emj
[ Hits: 3760 | Votes: 2 | Rating: 9.00 ]
- HF J-Pole antenna
- A Simple Nondirectional Antenna for Ten Meters
QST February 1950, Easy to build J-Pole antenna for restricted space.
[ Hits: 5895 | Votes: 2 | Rating: 4.00 ]
- W2BRI's Magnetic Loop Site
- Magnetic loop antennas for HF and above , magnetic loop info, how to build a magnetic loop, Magnetic Loop Antenna FAQs.
[ Hits: 2862 | Votes: 4 | Rating: 7.50 ]
- Thinking about Ideal Loops
- Loop antennae have been used from ELF to UHF since the beginning of radiocommunications. At low frequencies, the main problem for loop antennae is to have enough sensitivity; the antenna being very small respect to the wavelength the collected energy is also small. To increase the output level the loop may be made resonant, so loosing it%u2019s intrinsic aperiodic characteristics.
[ Hits: 1706 | Votes: 0 | Rating: 0.00 ]
- HF Receiving Loop Antenna
- HF receiving loop antenna, an easy-to-make receiving loop antenna for HF
[ Hits: 15831 | Votes: 6 | Rating: 6.67 ]
- Antennas for HF mobile operation
- The following description should give you guidance on how to build a mobile antenna for HF bands yourself, using a very cheap CB-mobile whip antenna base. Antennas for mobile operation 7Mhz ,10Mhz, 14Mhz, 18Mhz, 21Mhz, 24Mhz,28-430Mhz
[ Hits: 84307 | Votes: 73 | Rating: 5.27 ]
- Effective HF Mobile Antennas
- Effective HF Mobile Antennas Keith WB2VUO, explains difficulties on gaining antennas efficiency on lower bands with mobile antennas.
[ Hits: 7307 | Votes: 4 | Rating: 6.75 ]
- Portable loop antennas photos
- HF pedestrian operation using loop antennas by PY1AHD
[ Hits: 2703 | Votes: 1 | Rating: 1.00 ]
- Build your first dipole
- The dipole antenna is an easily designed and made antenna usually used on HF, although can be (and sometimes is) made for VHF and UHF antennas, and in varying forms is also used as part of different designs of antennas – i.e. as the driven element for directional antennas.
[ Hits: 14087 | Votes: 14 | Rating: 6.93 ]
- SWL antenna distribution system
- A methodology for connecting multiple LF/MF/HF receivers to a single antenna via readily available and inexpensive 75-ohm TV cable. Custom made baluns and splitters provide impedance matching and prevent interaction between receivers.
[ Hits: 1209 | Votes: 1 | Rating: 8.00 ]
- Quarter Wave with radials
- VHF quarter wave antenna mainly for scanner usage, The quarter wave antenna is an easily designed and constructed antenna for whatever frequency you want, although with the following design, you may to limit it to the VHF and UHF bands due to the physical size.
[ Hits: 7264 | Votes: 5 | Rating: 7.20 ]
- 9 band vertical HF antenna by RW3XA
- Simple vertical radiator with matching box. No traps, no tuner required.
[ Hits: 35006 | Votes: 39 | Rating: 7.45 ]
- Transmitting Antennas For HF Broadcasting
- This paper discusses a number of common used HF transmitting antenna systems and corresponding reference antenna codes. The latter was developed in close consultation with regional coordination groups ABU-HFC, HFCC-ABSU.
[ Hits: 2153 | Votes: 2 | Rating: 5.50 ]
- How create simple dipoles
- How to create a simple but effective half wave dipole, illustrated instrucions on how to build wire antennas
[ Hits: 3121 | Votes: 4 | Rating: 6.50 ]
- Yahoo! Groups : VHF_UHF_homebrew
- Vhf and UHF homebrewers of hardware and antennas. Find help, idea, or someone with
just the same interest as you.
[ Hits: 519 | Votes: 0 | Rating: 0.00 ]
- IC-PCR 1000 in Germany on-line receiver
- Icom PCR 1000 HF/VHF/UHF Antenna VHF/UHF Diamond X 50N HF W3D22 80m/40m 34m (111,54 feet) long based in Germany Hamburg JO43XO.
[ Hits: 5926 | Votes: 43 | Rating: 2.97 ]
- Antenna manufacturer in Taiwan, products range are RF communication antennas ( CB, VHF, UHF, Dual band, Base Station, Marine, GPS,GSM, PCS, Cellular, DVB-T ) , Amplifiers , Mounting Kit ,Accessories & Related products.
[ Hits: 3910 | Votes: 8 | Rating: 4.00 ]
- The reflected W beam
- Hexagonal wire beams for all hf bands, technical resource, EZNEC files, tools for antenna modeling and documentation. You can also order parts to build your own antenna.
[ Hits: 2535 | Votes: 3 | Rating: 8.67 ]
- Alpha Delta Communications
- Manufacturers and distributors of coaxial surge protectors, coaxial switches, HF fixed wire antennas
[ Hits: 2594 | Votes: 1 | Rating: 4.00 ]
- Mobat Communications
- HF-SSB radio products Accessories, Amplifiers and Antennas tuners. Established in 1995 as a joint venture between Motorola's Land Mobile Product Sector and Bartal Electronic Enclosures Ltd.
[ Hits: 8686 | Votes: 7 | Rating: 3.57 ]