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HF Antennas
High Frequency/ Short Wave Antennae.
See Also: Antennas, Broadband Antennas, Log Periodic Antennas, Directional Antennas, Biconical Antennas, Horn Antennas, Isotropic Antennas, Loop Antennas, Antenna Software, Antenna Analyzers, Dipole Antennas
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Omnidirectional HF Antennas
Kratos Defense & Security Solutions, Inc.
Broadband dipole products include the horizontally polarized 1765 antenna for short-to-medium range communications, the 3065 antenna that reduces ground-area requirements, and the 5065 series designed for locations where space is at a premium, including rooftops.
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Antenna Tuner HF+6m
DU 800 T
The DU 800 T optimizes the performance of your antenna and transmitter or SWL receiver by providing adjustable impedance matching. The DU 800 T also measures the Power and Standing Wave Ratio (SWR), which allows you to tune the indiceted SWR to the lowestpossible ratio for the selected transmit frequency.
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Fixed Directional HF Antennas
Kratos Defense & Security Solutions, Inc.
These antennas are intended for fixed station applications and are based on the single mast, transportable 747CD Log-Periodic Antenna Series. The variable take-off angle array configuration results in a high-performance antenna well suited to applications where communications over varying distance is required.
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Rotatable Directional HF Antennas
Kratos Defense & Security Solutions, Inc.
Kratos’ horizontally polarized rotatable log-periodic antennas are constructed with wire radiators supported by a strong and unusually lightweight support structure.
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Antennas
The CAES Antennas portfolio encompasses virtually the entire radio frequency spectrum, from the HF Band, where wavelengths dwarf buildings, to the millimeter wave band, where thousandths of an inch make all the difference, and offers unparalleled product diversity with an extensive product line of advanced antennas and antenna arrays.
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Antennas
Antennas - ranging in size from small VHF/UHF through large rotatable HF arrays of over 70 feet long. Physically small antennas, including HF compact magnetic loops and end loaded HF versions.
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Antenna Analyzer
iP30z
The iP30z iPortable Antenna SWR Analyzer is designed for field use and is an excellent choice for working with the Buddipole line of antennas. This compact battery powered unit has an easy to read frequency display and measures SWR as well as Z (impedance) in the HF Band. The SWR readings quickly show you the actual VSWR measurement. This is the easiest way to adjust your antenna quickly in the field without any guesswork.
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VECTOR-GUN HANDHELD DIRECTION FINDING ANTENNA SYSTEM
HFDF
National RF's Type HFDF active directional antenna system consists of a high gain RF amplifier coupled to a tunable Faraday shielded loop antenna. Several loop antenna assemblies are available to provide coverage of frequencies in the HF and low VHF spectrum. Due to the nature of a Faraday shielded loop, the antenna exhibits a sharp null through the diametric center of the loop. This null is used to determine the direction of incoming radio signals or to locate electrical noise being radiated from some source. The internal high gain amplifier is used to compensate for the inherent inefficiency of the actual loop at the operating frequency. Overall, the system dynamic response is about +6 dB as compared to the dynamic response of a dipole. To aid in the direction finding process on strong signals, an internal 30 DB attenuator is provided. As the loop antenna presents a bi-directional response, tri-angulation may be required to eliminate the ambiguous signal direction. The line of site of the incoming signal is determined by listening for a signal null on the receiver or by watching the receiver’s S-meter.
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Noise Location Package
Type HFDF
National RF’s Type HFDF high frequency location system is a proven noise hunting and location directional antenna system that allows you, in many cases, to walk right up to the source of High Frequency (HF) noise! Used by several power companies around the United States, professional noise hunters, and other communications specialists, the HFDF has located noise sources that emanated from pole power transformers, arcing electric fences, CATV in-line amplifiers, plasma TV screens, and even Marijuana grower’s heating lamps! The system incorporates several plug-in, tunable magnetic loop sensors of a proprietary National RF design, that cover the frequency range between 1.8 MHz and 55 MHz. The unit is packaged in a hand-held, lightweight metallic enclosure, with a pistol grip and a magnetic compass mounted on top. The compass is used to get magnetic bearings to the noise source, which may be plotted on a map to triangulate, and ultimately pin-point, the location of the noise source. In certain cases, our customers tell us that they have been able to walk right up to the interfering noise source and correct the situation on the spot!
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Array Solutions OCF
Series Dipoles
Thank you and congratulations on your purchase of the Array Solutions, OffCenter Fed HF Dipole Antenna System. This antenna was built with the same quality workmanship and attention to detail as our military, government and commercial wire antenna products. It is ideal for ARES/RACES, MARS/CAP, USCG Aux., Red Cross, Salvation Army and other disaster and relief organization use. It is built especially for high duty cycle, harsh environmental applications. The use of the finest quality components available and our “overbuilt” quality construction means your new antenna will last for years under the most difficult conditions, while requiring little or no maintenance.
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Beacon Transmitters for Radio Amateurs
Is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on LF, MF, HF, VHF, UHF, and microwave frequencies. Microwave beacons are also used as signal sources to test and calibrate antennas and receivers
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HF Amplifier
Prometheus
The design of the Prometheus is the result of over 10,000 hours of research and development, encompassing hundreds of hours of mathematical analysis, computer simulation and modeling, and numerous prototypes and experiments spanning over a five year period. The result is a rugged, commercial quality amplifier designed to run cool under 1500W continuous SSB, CW or RTTY, with special ferrite transformers and combiners designed for full power operation even on 160 meters. Although our custom transformers are more expensive and difficult to manufacture than competing designs, they do not saturate or heat up beyond the Curie point, thereby becoming irreversibly damaged and destroying the RF transistors in the process.
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HF Amplifier
bsw TestSystems & Consulting AG
Whether a HF amplifier which is mounted in a 19" rack is viewed as an instrument, a system or a component largely depends on the point of view of the application developer. We list this product family here; however we would like to point out that our 19" amplifiers for rack-mount and benchtop applications, as well as modules without power supply, are listed in the "Components" section.
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HF Communication Equipment
MS 2000
The Meltronics HF/SSB system provides a reliable voice communication over 2 to 29.99MHz frequency range and is designed to meet the most diverse requirements. The HF system is used to establish communication between Air to Ground station, Air to Air and Air to Ship. This System is suitable for Aircraft, Helicopter and Ships communication applications. The HF transceiver has beyond line of sight communications providing both voice and data services. Systems is a digital, Microprocessor controlled, synthesized unit that utilizes DSP technology to increase performance and versatility.
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HF test adapter
High-frequency test adapters (HF adapters) from INGUN are designed as a replacement set system, consisting of a manual test adapter (MA 21xx and 32xx series) and a high-frequency shielded replacement set from the ATS MAxx/HF series.
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HF / HCl Concentration Monitor
HF-960H
The HF-960H accurately measures concentrations of hydrofluoric and hydrochloric acid used in semiconductor manufacturing and other processes. The dedicated FES-510 series sensor is made from materials that are highly resistant to chemicals, making this unit ideal for the management of hydrofluoric and hydrochloric acid, even in high concentrations.
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HF Low Noise Amplifier
The COMM-connect HF Low Noise Amplifier can be used to amplify signals in the HF frequency range. The amplifier comes with a selection of 4 different connectors, which makes it very easy to adapt to any type of installation. Mechanical mounting is made easy by mounting flaps protruding the casing.
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Perseus SDR HF Receiver
PERSEUS is a VLF-LF-HF receiver made by Microtelecom is based on a outstanding direct sampling digital architecture. It features a 14 bit 80 Ms/s analog-to-digital converter with an exceptional 76 dB SNR (BW = 40 MHz), an high-performance configurable FPGA digital down-converter with an up to 1 MS/s output sampling rate and a 480 MBit/s, high-speed USB 2.0 PC interface. Unlike in lower class direct sampling receivers, the PERSEUS RF analog front-end has been carefully designed for the most demanding users and includes a 0-30 dB, 10 dB steps attenuator, a low-loss 10 bands pass-band RF preselector filters bank, and an high dynamic preamplifier with a top-class input third-order Intercept Point of more than 30 dBm. The resulting third-order dynamic range is 103 dB for SSB signals (2.4 KHz BW) and 107 dB for CW signals (500 Hz BW).
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RFID Sensor Datenlogger (HF)
TELID®300
TELID® sensor data loggers are ideal for complex monitoring of quality assurance and maintenance, or while transporting foods, plants, pharmaceuticals or medical products. Temperature, humidity, pressure or shock-sensitive products can be monitored and traced, for example, during worldwide transportation. microsensys offers calibration services for the TELID®311, 311.ac and 314.ac. We carry out a factory (one- to three-point) calibration according to your temperature specifications, which are based on controlled operations and continuous monitoring, or ISO (one- to more point) calibration for temperature according to DAkkS specifications.
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RFID Sensor Transponder (HF)
TELID®200
With the TELID® 200 range, you can have a combination of RFID transponders and sensors for measuring physical quantities. Here, in particular, pressure, acceleration, strain, moisture, and electric conductivity are of significant interest. Determining the situation just-in-time and storing the newly measured values in the integrated memory is one of its main functions. More complex functions such as digital I/O ports for connecting memories, microcontrollers and digital subsystems are also available. TELID® 200 products do not require batteries and work with no internal energy source.
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Antenna
Woken is dedicated to providing innovative standard and custom antenna solutions that incorporate our leading-edge technologies. We offer a diversified product line for wireless applications. Woken also offers custom engineering design through volume manufacturing services. All our antennas are tested to meet our stringent specifications.
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Antenna
The multifunctional antennas are designed to meet the harsh environmental conditions and limited space availability found on submarines. This is achieved by utilizing a unique stack array enclosed within a protecting fibre glass dome.The antenna characteristics has been developed in such a way so that aircrafts can also operate in the airspace for data and voice communications next to ship-to-ship or ship-to-shore communications. In this way aircrafts e.g. AWACS act as relay stations to transfer radio signals. Although the dipole of the lizard has a primarily plane oriented radiation characteristic – up until an elevation angle of 60 degrees-, submarines can still track aircrafts up to an elevation angle of 90 degree. This guarantees complete coverage of the surrounding airspace in 360 degree horizontal level as well as in 180 degree vertical level.With this outstanding multifunction antenna capability Aeromaritime significantly extends the military communications for submarines by offering this unique capability.
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Antenna
Beijing KeHuan Century EMC Technology Co,.LTD
Antenna is adjusted using the receiver, use, testing, measurement, etc.
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Antenna
Our expertise in 3-D EM computation accelerates the antenna development through accurate simulations and performance optimizations with full CAD description of devices and precise definitions of materials.
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Antennas
Kyocera AVX Components Corporation
Antennas by Kyocera AVX - standard and custom antennas, active antenna solutions, and measurement systems
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Antennas
Introducing the new RFSPACE Ultra-Wideband (UWB) and log periodic antennas. These antennas cover different frequency bands from 200 - 12000 MHz. Each antenna is hand tuned and tested to cover the specified frequency band continuously. All antennas except the UWB-4 and TSA900 come with a birth certificate showing the return loss plot of the antenna. The lower cost antennas are not plotted to keep price low.
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Antennas
Elbit Systems of America’s antenna product line offers ruggedized, field-proven, military communication solutions for air, sea and ground operations. These advanced antennas deliver high performing, continuously connected voice, video, and data communications. Our technologies support high up/down-link rates and make our antennas ideal for fixed and maneuver units. Each system is designed to be fully integrated with most broadband satellite communication systems.
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Antennas
Dual polarized 6 dBi omni-directional antenna. Included with each antenna is a unique mounting bracket that allows the Ubiquiti® RocketM2 radio to be attached directly to the antenna. Also included are a pair of 195-series low-loss cable assemblies to connect the RocketM2 to the antenna. Customers can enjoy the cost saving of these kits compared to purchasing an Ubiquiti® antenna to use with the RocketM2 radio.
