Active antenna

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Antennas : Active

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AMRAD Active LF Antenna - The AMRAD Active LF Antenna. You can tune into LF activity with this easy-tobuild and erect active antenna. As a bonus, you get MF and HF coverage, too�not to mention world-class performance
[Hits: 115 | Votes: 0 | Rating: 0.00]
Simple active antenna - This circuit shows an active antenna that can be used for AM, FM, and shortwave
[Hits: 2950 | Votes: 4 | Rating: 5.75]
Why active antennas aren't perfect - There have been various comments here regarding the effectiveness of active antennas
[Hits: 912 | Votes: 2 | Rating: 1.00]
Active antenna for 10 to 200 Khz - Tuned active receiving antenna for 10 to 200 KHz.
[Hits: 1026 | Votes: 3 | Rating: 10.00]
An active antenna - Project for QRP operations by George Dobbs G3RJV
[Hits: 1141 | Votes: 0 | Rating: 0.00]

The Carpet loop indoor antenna ^pop - High performance indoor shortwave antenna, the Carpet Loop II is an ideal step upward for the listener who wants something better than a random wire but doesn't want the expensive dice roll of an active antenna.
[Hits: 16867 | Votes: 12 | Rating: 7.00]
Advanced active VLF Loop - Article on using loop antenna in very low frequencies
[Hits: 1016 | Votes: 1 | Rating: 10.00]

Wellbrook ALA 1530 active magnetic loop review - Interesting review about active magnetic loop antenna Wellbrook ALA 1530 and 330S by ON4SKY
[Hits: 2209 | Votes: 4 | Rating: 6.75]

Active receiving antennas - An active antenna is sometimes used for receiving purposes in instances where a normal antenna would be impossible to accommodate in a physical sense.
[Hits: 5561 | Votes: 2 | Rating: 3.50]
Active ferrite rod antenna - An active antenna for HF done with a ferrite rod by OH7SV
[Hits: 1079 | Votes: 2 | Rating: 8.00]
Another Approach to Active Antennas - Active antenna with a frequency response that is flat from 5kHz to over 30MHz
[Hits: 278 | Votes: 0 | Rating: 0.00]

About broadband - What you gain and what you lose. While broadband and electrically small antennas may look attractive on the surface, they are by necessity compromises and usually don�t work as well as tuned antennas.
[Hits: 178 | Votes: 0 | Rating: 0.00]

Corner reflector antenna - Do you need a high gain antenna? Have you suffered on picking up interference from unwanted direction? You need a directional antenna but a 12 element Yagi will be too attractive!
[Hits: 811 | Votes: 3 | Rating: 4.67]

Idiom Press - CW keyers, Logikey, and antenna rotator controll like rotor-ez, and active audio low pass filters.
[Hits: 1380 | Votes: 1 | Rating: 9.00]

Tecom - Tecom industries product line encompasses a wide range of highly sensitive active and passive antennas for use in airborne and ground applications, providing complete coverage of the 20 MHz to 40 GHz frequency range.
[Hits: 48 | Votes: 0 | Rating: 0.00]

Wellbrook Communications - Broadband active loop antennas for radio amateurs and hobbyists
[Hits: 2014 | Votes: 3 | Rating: 6.67]

Radio Frequency Systems - RFS is a global designer and manufacturer of cable and antenna systems plus active and passive RF conditioning modules, providing total-package solutions for wireless infrastructure.
[Hits: 143 | Votes: 0 | Rating: 0.00]

An Introduction to 24 GHz - Article provides a guide on how to use 24 GHz band and what to expect, including Active modes, equipment, propagation and antennas for this band in by VE3SMA
[Hits: 30 | Votes: 0 | Rating: 0.00]

QRM and noise reduction Priority listing - You will find on these pages my experiences and results on antennas and local/non-local QRM/noise reduction. Using a broadband vertical active magnetic loop and a home made / designed broadband amplifier. Two vertical magnetic Alford loops are used in an array. Analog and Digital Signal Processing and a dual phase coherent Software Defined Radio (SDR) are used. By PA0SIM
[Hits: 2472 | Votes: 4 | Rating: 8.00]

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