c band antenna
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Antennas : 160M- Receiving loop aerial for 1.8 MHz
- Bulding notes of a receiving loop antenna for 160 meters band
[ Hits: 4444 | Votes: 4 | Rating: 7.5 ]
- 7 Elements YAGI for 144 Mhz
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- The QM7 antenna is a simple 7 elements Yagi with 3.7 m boom length for the lower 144 MHz
SSB/MGM band, in PDF Format
[ Hits: 42746 | Votes: 49 | Rating: 5.87 ]
- QM5 Yagi for 2 meters band
- The QM5 antenna is a simple 5 elements Yagi with 1.88 m boom length for the lower 144 MHz SSB/MGM band, I used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 9.17 dBd; i.e. 11.3 dB forward gain over the isotropic radiator, while the F/R is about 11.5 dB. Elements
[ Hits: 6869 | Votes: 4 | Rating: 5.25 ]
- QM7 7 elements 144 MHz Yagi-Uda Antenna
- The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB
[ Hits: 5361 | Votes: 15 | Rating: 5.27 ]
- K9FV 40 meters band loop
- A Mississippi Style 40 meter magnetic loop
made from available aluminum conduit, this antenna will not disappoint by Ken Holland, K9FV
[ Hits: 14876 | Votes: 10 | Rating: 7.6 ]
- 80 Meter vertical Loop
- An 80 meter band vertical loop antenna setup
[ Hits: 1347 | Votes: 0 | Rating: 0 ]
- Switchable Antenna 80/160 meters band
- A switchable antenna for 80/160 meters by IK1ZOY. A new version of a 1/4L 80 m. dipole modified for use in 160 m. band. using it's own coaxial cable feeder to wrap a coil.
[ Hits: 17199 | Votes: 6 | Rating: 5.5 ]
- WW2Y/K2WI Beverage design
- Ideas for enhanced beverage antenna performance, Single wire beverage improvements and arrays of two beverages.
This article explores improving reception with Beverage antennas. It discusses single wire Beverages and their limitations. Then it compares two array configurations: broadside and end-fire. Broadside offers better front-to-side ratio but requires more space. End-fire offers better front-to-back ratio and takes less space but is trickier to implement for multiple bands. The article concludes with a 3-element end-fire design for excellent performance and explores possibilities for dual-band configurations.
[ Hits: 4056 | Votes: 4 | Rating: 9.5 ]
- Beverage switching box
- Sharing beverage antennas with this switch boxes is possible.
This article describes a 6-position remote antenna switch for Beverage antennas on 3 bands (160m, 80m, 40m). It allows selecting one of 6 antennas for each band without affecting other receivers. The system uses a control box with a rotary switch and a separate splitting box with bandpass filters for each band.
[ Hits: 5509 | Votes: 3 | Rating: 4.33 ]
- The Beverage Antenna Memorandum
- Memorandum on the Beverage Wave Antenna for Reception of Frequencies in the 550 - 1500 Kilocycle Band", FCC Report 9.2.1, by Benjamin Wolf and Adolph Andersen
[ Hits: 1251 | Votes: 0 | Rating: 0 ]
- Comparison of Beverage antenna
- A ranking of receiving antennas based on noise being evenly distributed in all directions. These rankings are most accurate in the frequency range of AM broadcast, 160 or 80 meter bands
[ Hits: 2855 | Votes: 2 | Rating: 6.5 ]
- Antennas for HF mobile operation
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- 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: 90297 | Votes: 80 | Rating: 5.12 ]
- Effective HF Mobile Antennas
- Effective HF Mobile Antennas Keith WB2VUO, explains difficulties on gaining antennas efficiency on lower bands with mobile antennas.
[ Hits: 7913 | Votes: 4 | Rating: 6.75 ]
- 9 band vertical HF antenna by RW3XA
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- Simple vertical radiator with matching box. No traps, no tuner required for this multiband antenna
[ Hits: 38751 | Votes: 43 | Rating: 7.34 ]
- ON4AOI Automatic Band Decoder
- Automaticaly select the correct antenna and bandpass filter, by ON4AOI
[ Hits: 1464 | Votes: 4 | Rating: 7.25 ]
- Digital Smart Antennas DiSA
- Digital Smart antenna (DiSA) Automatically Adjusts over a wide band of frequencies.
[ Hits: 926 | Votes: 2 | Rating: 5.5 ]
- 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: 2787 | Votes: 3 | Rating: 8.67 ]
- Creative Design Corp.
- Create - Reliable antenna and antenna rotators from japan. Manufacturer of amateur radio products, HF VHF UHF antennas, antnena towers, antenna rotors, HF Log Periodic Antennas, VHF UHF wideband amateur radio antennas
[ Hits: 4446 | Votes: 5 | Rating: 6.6 ]
- Dawicom
- Manufacture of microwave directional, omni directional, sector and multisector antennas with horizontal polarization for ISM band 2,4 GHz
[ Hits: 805 | Votes: 0 | Rating: 0 ]
- Mizuho products
- Mizuho Tsushin Co. was a small Japanese manufacturer of QRP radios and kits, shortwave receiver accessories, and AM broadcast band receiver kits and antennas
[ Hits: 3239 | Votes: 1 | Rating: 10 ]
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