Showing results: 16 - 23 of 23 items found.
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MICRONIX
Recently, a lot of equipment have taken the high frequency or microwave technology according to the advancement and the spread of the telecommunication equipment. As a result, the handheld spectrum analyzer to analyze the signal by the frequency domain is necessaries now. The handheld spectrum analyzer is roughly classified into a heterodyne method and a Fourier transform method. The heterodyne method is also called the swept frequency method and makes it possible to measure up to tens of GHz though only for the steady signal. On the other hand, the Fourier transform method is also called the real time method and can handle an unsteady signal though the low measuring frequency range up to tens of MHz. As for our spectrum analyzer or signal analyzer, the MSA300/400 series adopts the swept frequency method, and the MSA500 series adopts both the swept frequency method and the Fourier transform method.
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6152 & 6152C -
AYA-Instruments
*Refresh Rate – A packet of data is sent from the outdoor transmitter to the receiver every 2 1/2 seconds! This means when you look out the window and see the wind blowing, the weather station will reflect it almost immediately.*Transmission Distance (wireless models) – The first in its consumer price range to use frequency hopping spread spectrum radio technology, the Vantage Pro2 can transmit and receive data up to 1000′ (300 m) line of sight. This is a much greater distance than most other weather stations. This technology also provides improved reception through multiple walls and greater immunity from RF interference.
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Analog Devices Inc.
Recognized as the pioneer and leader in RF detectors, Analog Devices offers a broad portfolio of high performance logarithmic amplifiers and TruPwr™ rms detectors. ADI logarithmic amplifiers measure signals up to 100 dB dynamic range, from dc to microwave, and accuracies of ±0.2 dB, and are well-suited for both RSSI and transmit power level detection. The TruPwr rms detectors address the challenge of measuring complex waveforms found in spread spectrum CDMA/W-CDMA and higher order QAM modulation systems and provide an accurately scaled dc voltage, which is the rms equivalent of the input waveform.
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Analog Devices Inc.
Recognized as the pioneer and leader in RF detectors, Analog Devices offers a broad portfolio of high performance logarithmic amplifiers and TruPwr™ rms responding detectors. ADI logarithmic amplifiers measure signals up to 100 dB dynamic range, from dc to microwave, and accuracies of ±0.2 dB, and are well-suited for both RSSI and transmit power level detection. The TruPwr rms detectors address the challenge of measuring complex waveforms found in spread spectrum CDMA/W-CDMA and higher order QAM modulation systems and provide an accurately scaled dc voltage, which is the rms equivalent of the input waveform.
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Teledyne Marine Gavia ehf.
Gavia AUVs can be fitted with the Teledyne Benthos ATM-900 Acoustic Modem. The ATM-900 Series Acoustic Telemetry Modem is the most advanced, multipath and noise tolerant, modem available. They are designed to meet both the high data rate requirements of commercial users, and the higher reliability, lower data rate requirements of the military. The modems employ two modulation techniques: phase shift keying (PSK), which provides the highest bit rate, and multiple frequency shift keying (MFSK), which provides reliability in a multipath environment, or when the modems are required to operate in a low signal-to-noise (SNR) environment. The ATM-910 Series can transmit data using PSK modulation for reception by a Gavia Modem Deckbox, but receives data using MFSK modulation only. MFSK modulation is a spread spectrum modulation process that transmits multiple tones simultaneously.
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PCI113 -
Vadatech Inc
PCI113 is VadaTech second generation PCIe expansion module. The PCI113 is a high-speed 20Gbps bridge from the host PCIe bus to VadaTech’s carrier and Rear Transition Module (RTM) products such as the ATC104/114/118/117/119, ART114, μTCA chassis, etc. The different carriers host different I/O modules such as PMC/PrPMC, AMC, PCI-X and PCIe edge modules. This concept allows any of the available I/O modules in these standard form factors to be integrated quickly and easily into an AdvancedTCA or μTCA subsystem. The PCI113 allows expansion among multiple μTCA chassis or expansion into other chassis that are not ATCA or μTCA based.The PCI113 is a single module PCIE based on the PCISIG specification. The PCI113 provides a PCIe x4 link infiber/copper via front panel QSFP. The dual front I/O allows expansion into two separate systems independently. The upstream port must not have spread spectrum PCIe clock enabled.
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Washington Laboratories LTD.
Washington Labs provides FCC Testing and has many years of experience and expertise in the following:FCC Part 15 Testing for Computing Devices, Cordless Telephones, Satellite Receivers, TV Interface Devices, Receivers, Low Power Transmitters, and Spread Spectrum Transmitters, UNII & others.FCC Part 22 Testing for Cellular TelephonesFCC Part 25 Testing for Satellite CommunicationsFCC Part 90 Testing for Private Land Mobile Radio Services – Includes Paging Devices and Mobile Radio TransmittersFCC Part 95 Testing for Personal Radio ServicesFCC Part 18 Testing for Industrial, Scientific, and Medical Equipment i.e. Microwave, and RF Lighting Ballast (ISM)FCC Part 24 Testing for Personal Communications SystemsFCC Part 80 Testing for Marine Radio Transmitters
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FB7-NX -
National RF, Inc
In about 1935, the National Radio Company of Malden, Mass., brought out a “hot” high frequency receiver, called the FB7, and the subsequent FB-7X. It featured a super-hetrodyne design with plug-in coils that gave it a broad frequency range. The “X” model also incorporated a crystal filter in the intermediate frequency section, thus giving it additional selectivity. The receiver was viewed by radio amateurs as a technological breakthrough, and it was also used commercially for point to point high frequency communications. As the receiver did not have an internal RF amplifier section, a separately tunable RF amplifier was later provided in a separate enclosure for additional performance capabilities. Now, National RF, Inc., is resurrecting the fabled receiver name with an all solid-state, hot mini receiver, which also utilizes plug-in coils to cover the HF spectrum. The mini-receiver is designed for use by radio amateurs as well as serious short-wave listeners, and allows reception of AM, CW, and SSB signals. It incorporates a super-hetrodyne design with a dual gate FET built-in RF preamplifier and a ceramic filter for selectivity, often required when used in a crowded amateur radio band. In addition, the receiver has a buffered rear panel output of the high frequency oscillator for use with either a frequency counter for exact receive frequency display, or for interface with an outboard transmitter. A rear panel jack is also provided for muting the receiver when a transmitter is placed into the transmit mode. And, the receiver is small enough to fit into carry-on luggage and taken on trips when it is desired to “keep an ear” on amateur radio or other high frequency activity. The receiver utilizes rear panel plug-in coil assemblies which contain the RF amplifier, mixer, and oscillator tuned circuits. Each plug-in coil assembly also comes with a separate dial scale, which is inserted onto the front panel for displaying the tuned frequency. A very smooth 6 to 1 planetary drive is used for tuning the receiver. Other front panel controls include RF preamplifier peak, volume control, Beat Frequency Oscillator adjustment, and RF gain control. Other switches include filter bandwidth, AM/CW/SSB selection, Power, and a general coverage/band spread control for certain plug-in assemblies. The receiver is intended to drive head-phones via a rear panel jack, but has sufficient output to drive a small external speaker.
