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Antennas : Homebrewing Techniques

• Antenna Manufacturing: How to Prevent Galvanic Corrosion - Galvanic corrosion, a destructive process triggered by dissimilar metal contact in a corrosive electrolyte, poses a significant threat in antenna manufacturing. With aluminum and stainless steel components commonly involved, unaddressed corrosion can lead to white particle accumulation, causing long-term damage. Awareness of the galvanic series and the application of protective coatings like Alumslip can mitigate this pervasive issue, ensuring a prolonged antenna lifespan.
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• Communications Towers - Basic information about tower purchasing and installation will help you to communicate your requirements to a tower manufacturer, leading to better decisions and a smoother process from inception to installation.
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• Central Arkansas Radio Emergency Net - The C.A.R.E.N. Club is one of the oldest amateur radio clubs in Arkansas, dating back to the late 1950s. Just as the name implies, the C.A.R.E.N. Club is the state leader in emergency communications, SKYWARN, Amateur Radio Emergency Service (ARES), Radio Amateur Civil Emergency Service (RACES).
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• Pravacy Speaker PMR446 - We are a leading developer and manufacturer PMR446 in Korea. Our new developed PMR446 model no. IFR-100 has new function like as private speaker it allow not to speak out from the radio and only you can hear the communication by using a private talk mode.
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• Timewave - Sells leading-edge voice and digital communications products to the world-wide military, government, industrial, and amateur radio marketplaces. Bluetooth Remote Audio/PTT, Rig Controller with Audio & PTT , HamLinkUSB Rig Control, Noise filtersm antenna analyzers, Multimode Data Controller, TNC, Packet Radio Terminal Node Controller. USB2RS232
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• RAM Mounting Systems, Inc. - Ram mounting systems is a world leader for design and manufacturing of mounting applications. ram mounts offer more than 900 interchangeable components for unlimited uses and configurations.
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• General Cable Home Page - Leader in the development, design, manufacture, marketing and distribution of copper, aluminum and fiber optic wire and cable products for the energy, industrial, specialty and communications markets
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• Amphenol RF - Amphenol RF is a leading manufacturer of coaxial connectors for use in radio frequency, microwave, and data transmission system applications. Headquartered in Danbury, Connecticut, USA, Amphenol RF has global sales, marketing and manufacturing locations in North America, Asia and Europe. Standard products include RF connectors, coaxial adapters and RF cable assemblies. Custom engineered products include multi-port ganged interconnect, blindmate and hybrid mixed-signal solutions.
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• Hytera - Hytera, a leading designer and manufacturer of professional mobile radio communication equipment, offers complete and customized communication solutions to government, public security, utility, transportation, enterprise & business for higher organizational efficiency.
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• GIGAVAC Ham Radio Relays - Gigavac is a leading designer, manufacturer, and worldwide seller of contactors and high voltage relays using vacuum, gas filled, and high voltage reed relay technology. hv relay applications information with cross reference charts for kilovac / tyco, jennings, and crydom part numbers.
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• ElectroSwitch - Leading rotary switch manufacturer, Electroswitch Electronic Products offers a complete, vertically integrated, manufacturing and assembly facility dedicated to producing rotary switches
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• Kenwood - Kenwood continues its strong and proud heritage as the Pacesetter in Amateur Radio. Kenwood was the first Amateur Radio manufacturer on the Web. It is our firm dedication to continue leading the way with useful website services in the future. Visit our Amateur page to learn more.
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• Duracomm Power Supplies - Power Solutions for Durable Communication Systems. Founded in Sep. 1992, DuraComm Power Supplies is a worldwide recognized leader in ultra-reliable AC-to-DC switch mode power supplies commonly used in the communications industry.
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• Recent - Quanzhou Risen Electronics Co., Ltd is a leading supplier of wireless communication equipment, produce Marine, HF SDR Radios, Repeaters, PMR Radios, Digital Radios based in China
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• AEA - AEA Technology Inc. is a pioneer and leading manufacturer of RF and cable test equipment for the wireless, Telco, CATV, NMR & MRI, RFID, telemetry, aviation, commercial, military, and two-way radio industries. Produces SWR Meters, Pre Amplifiers, filters, power meters and antenna testing products
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• Quality Tower Erectors - Quality Tower is dedicated to performance as a manufacturing and installiation leader by delivering high quality services in a timeframe that will meet and exceed based in Florida
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• TRS RenTelco - Test Equipment Rental - TRS RenTelco provides new or used electronic test equipment for rent, lease or purchase. Solutions are provided for various type of equipment such as spectrum analyzers, network analyzers, oscilloscopes etc from leading manufacturers. Our products are widely used in communications, R&D, semiconductor, and wireless industries.
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• Nuhertz Technologies - Leading supplier of low and high frequency electronic filter design products for the design of wireless telecommunications equipment, semiconductors and more
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• Understanding Impacts of 75-ohm Devices in 50-ohm Systems - This article explores the implications of using 75-ohm devices, common in TV setups, within 50-ohm systems. While mismatched cables and connectors may lead to minimal consequences in receive-only setups, potential losses and reduced isolation in splitters and taps are examined. The article concludes that, for general applications, inexpensive TV-type components can offer reasonable performance with some trade-offs
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• Second floor grounding - Solution for stations located at secondo floor or higher. Lead lengths to the grounding system are much too long to provide a low-impedance RF ground.
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