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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
- LBA Group, Inc
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AM Antenna Tuning Units
ATU's
LBA medium wave AM Antenna Tuning Units (ATU) and Line Tuning Units (LTU) are impedance matching units designed to match the transmitter to the impedance of the transmission line or the antenna system. Our Antenna Tuning Units are available for both series-fed and {ln:Tunipole antenna systems} Tunipole™ antenna systems to powers in excess of 500 kW.
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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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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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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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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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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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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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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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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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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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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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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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Antennas
The PLA-R and PLA-T are active, battery powered receive and transmit loop antennas for the frequency range 9 kHz - 30 MHz intended for radiated emission testing (PLA-R) and site validation: Normalized site Attenuation, Shielding Effectiveness (PLA-SET consisting of PLA-R and PLA-T)
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Antennas
Radiall offers a complete range of antennas dedicated to military and industrial applications. It includes radio tactical communications, vehicles, positioning, LMR/PMR and telemetry applications. Additionally, Radiall offers custom designed antennas and high-end support to its customers for any special requirements.
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Antennas
At MVG, we design our antennas with outstanding performance in mind. It begins with a careful design process, alternating simulation and measurements. It extends to the use of the most advanced machining techniques and quality materials to achieve tight mechanical tolerances. That's why all our antenna characteristics are outstanding. And that's why we can guarantee the best electrical performance/operational bandwidth trade-off. No competitor matches this level of excellence.
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Antennas
As your one-stop shop for communications products, we offer many types of antennas of different frequency ranges and applications, usable with our receivers as well as third-party products.
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HF Frequency Counter LXI, GPIB/IEEE48
53210A
For fast and accurate frequency and time-interval measurements, you need reliable devices in research and development. The Keysight 53210A HF frequency counter meets the requirements with its high accuracy, bandwidth and speed. Depending on the application and budget, choose one of the three available models. The connection to the PC is via USB, Ethernet/LXI or via GPIB.
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Monitoring Antennas
Rohde & Schwarz monitoring antennas combine very high sensitivity with high gain up to 44 GHz, to capture even the weakest signals in a wide dynamic range.Their outstanding electrical performance, sturdy design and low weight ensure easy handling, making them ideal for stationary or mobile monitoring under extreme outdoor conditions. We can also tailor monitoring antennas to customer requirements. Rohde & Schwarz offers a full portfolio of monitoring antennas, including handheld, directional and omnidirectional stationary, directional and omnidirectional mobile and semi-mobile antennas, along with any necessary accessories.
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Omni-Directional Antenna
EM-6116 | 2 GHz – 10 GHz
The EM-6116 is a vertically polarized, omnidirectional antenna covering the frequency range 2 to 10 GHz. It is enclosed in a weather resistant radome. Smaller than other similar antennas, the EM-6116 is ideal for covert applications.
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Broadcast Antennas
Featuring wideband operation (1452Mhz to 1675Mhz) these antennas have a very low VSWR, having beendesigned specifically for operation in these bands. These antennas also have high power handling for anantenna in this class making them ideal for medium power applications. A wide range of standard mountingarrangements is also available.
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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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Antenna Pedestals
Kratos Defense & Security Solutions, Inc.
Kratos provides a range of high duty cycle, full-motion pedestals for such applications as fixed ground terminal surveillance and gear-driven pedestals for tracking antennas, communications systems, and weather radar. Manufactured to ISO9001 standards, they support different diameter antennas and radome requirements.
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AM/FM Antennas
Our range of well-crafted and designed AM/FM antennas keep your onboard entertainment playing.
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3D Antennas
A 3D capable printing technology designed to create printed electronics directly on 3D surfaces using modern software controlled digital process.
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Antenna Adapter
Antenna adapters for all standard antennas are available. Nonstandard are also available upon request. The adapter materials are designed to provide stability, with the lowest possible weight.
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Sinuous Antennas
Sinuous Antennas provide RF performance similar to comparably-sized planar spiral antennas, while also supporting reception of multiple signal polarizations. CAES offers a variety of sinuous antennas to meet your design needs.
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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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Biconical Antenna
ZSZ7-0.4-18G-1185
Biconical Antenna, Frequency 0.4~18GHz, Gain 0dBi, VSWR 2.5:1, Vertical Polarization, N-Female
