Showing results: 46 - 60 of 91 items found.
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Morcom International, Inc.
Aeronautical communications systems must be reliable and efficient. Morcom is a leading supplier of communications systems for civil and military users. From long-haul SELCAL radio HF-SSB systems, to ATC radios for VHF and UHF communications we have supplied several military and civilian aviation users around the world with very effective and state-of-the art solutions.
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FIM-72A UHF -
Potomac Instruments, Inc.
The Model FIM-72A is a portable, laboratory quality Field Strength Meter designed for rigorous field applications. Combining a calibrated half-wave dipole antenna and a highly accurate tuned voltmeter with a range of 140 dB, the FIM-72A is suitable for practically all types of RF emission measurements in the 450 MHz to 960 MHz spectrum. The operator can switch select wide or narrow bandwidth, peak or average value of TV or pulse modulated signals, AM or FM demodulation, and meter dynamic range of either 20 dB or 60 dB. A dc analog voltage, proportional to meter indication, is provided for driving a chart recorder or similar device. A leveled output from the calibrating generator is available for measuring cable insertion loss, filter response, amplifier gain, VSWR, and other signal ratio measurements. The 4-1/2 inch, taut band, mirrored scale meter is calibrated in volts and dB for precise measurements in field or laboratory environments.
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RFID -
SICK Sensor Intelligence
Radio-based RFID technologies in the HF (high frequency) and UHF (ultra high frequency) ranges supplement SICK’s industrial automation portfolio. In applications where process-relevant data is modified remotely, RFID makes it possible to store data on writable and rewritable media. And, in contrast to optical solutions, RFID provides reliable identification of all objects – despite dirt and everyday wear.
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Techimp HQ S.r.L
UHF Spiral antenna is a partial discharge sensor designed to receive electromagnetic (EM) emissions from a PD occurring in the monitored asset. It is a broadband antenna with a flat response which makes Spiral antenna suitable in a number of different applications. It has been optimized to operate in a frequency range typical for PD activity and it was designed to provide maximum sensitivity and high gain.
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Bird Technologies
Bird SBIII Series Digital Signal Boosters address the requirement to tightly control the frequency or frequencies that need to be received and transmitted. The SBIII series uses Digital Technology that can be programmed through software to manage a signal window as narrow as 6.25 kHz and as wide as 15 MHz for the 700-800 MHz bands and as narrow as 6.25 kHz and as wide as 1.5 MHz for the UHF band.
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MFJ-874 -
MFJ Enterprises, Inc.
MFJ Grandmaster SWR/Power meters are the Cadillacs of ham radio! All GrandMaster feature peak and average, forward and reflected power readings and have selectable power ranges. Covers HF /UHF / VHF. 30, 300, 3000 Watt power ranges.
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Radio Talkback -
Trilogy Broadcast
The 430-00-XX is a rugged, full duplex UHF base station ideally suited to any application within TV studio, OB/SNG and theatre environments where clear and dependable wireless communication is critical. Both single and dual antenna versions are available covering the 440-470MHz band, each with 32 channels and programmable RF power level from 10 to 50 Watt.
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Empower RF Systems, Inc.
Narrow and Broad band RF modules and rack mount amplifier systems using solid state devices including LDMOS and GaAsFET in Class A and Class A/B topologies for AM, FM, VHF, and UHF bands with output power ranging from 0dbm to 60dbm.
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Chengdu KeyLink Microwave Technology Co., Ltd.
RF Amplifiers up to 500MHz LDMOS and GaN are applied for this frequency range of Narrow and Broad band including VHF, UHF bands amplifier modules and offers low risk on heat radiation and long term sustainable operation. Also, controlling and protection circuits are designed.
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DPR -
Lectrosonics, Inc.
This unique plug-on transmitter design will ideally match any microphone or line level source via a standard XLR connector. The DPR can tune in 100 kHz or 25 kHz steps across the UHF television band from 470.100 to 607.950 MHz, with a selectable output power of 25 or 50 mW. The purely digital architecture utilizes AES 256-CTR encryption for high level security applications.
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DBu -
Lectrosonics, Inc.
The DBu transmitter is a 4th generation design with specially developed, high-efficiency digital circuitry for extended operating time on two AA batteries. The transmitter can tune in coarse or fine steps across the UHF television band from 470 to 608 MHz (470-614 MHz for export versions), with a selectable output power of 25 or 50 mW. The pure digital architecture enables AES 256-CTR encryption for high-level security applications.
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Antenna Research Associates
ARA provides VHF, UHF, and L/S/C single and multiband antennas as part of our multiband military communication antenna product line. These antennas have been used for well-known programs such as SINCGARS, EPLRS, JTRS, and WIN-T. We can integrate a variety of standard filters, LNAs and components into our rugged antennas for custom communication systems. ARA also provides military communication antennas for UAV applications.
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Kuhne electronic GmbH
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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doblePRIME PD-Guard -
Doble Engineering
The doblePRIME PD-Guard continuously monitors partial discharge (PD) in equipment such as transformers, rotating machines, cables and switchgear.The doblePRIME PD-Guard provides local alarms and will communicate data and notifications across standard interface channels and through to networked supervisory systems. It analyzes RF emissions in the HF, VHF and lower UHF ranges.
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PDExpert -
Power Monitoring and Diagnostic Technology Ltd.
The PDExpert is PMDT's third level of Partial Discharge (PD) Expert Diagnostic and Location System. It is a powerful, portable, multi-channel system of impeccable design used to analyze and pinpoint PD signals coming from a power asset within centimeters while the power system is energized. The system consists of UHF, AE, HFCT and ultrasonic sensors, one advanced UHF/PD signal processing unit, one oscilloscope, filters and other accessories.The system employs ultra-high speed data acquisition and advanced digital signal processing technologies, compares the UHF, AE and HFCT signals of different frequency ranges to determine if it is PD or noise, and locates the source in power assets accurately by utilizing Acoustic-Electromagnetic Combination Location Technique, time Difference of Signals' Arrivals (TDOA), and 3D Positioning Technology.