FM
Amplitude remains constant as frequency is varied, Frequency Modulation.
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Product
Direction Finder Components
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Doppler Systems offers direction finder components that can be paired with your narrow band FM receivers to create an accurate, low-cost radio direction finder (RDF). Our direction finder components include processors and fixed site and mobile antennas.
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Product
Field Strength Meter
FIM-72A UHF
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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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Product
0.1Hz-5MHz AM/FM Functional Generator
MFG-8205
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Features:• Low distortion, high stability• Linear and logarithmic sweep function• Sweep time and width adjustable• External Voltage Control Frequency (VCF)• Internal & external modulation (AM/FM) with modulation control• Output signal compatible with TTL/CMOS• Seven types of waveforms such as sine, square, triangle and ramp• 5W power output (ONLY for model no with “B”)• DC offset and 40bD attenuation can be applied to main output signal• Built-in frequency meter 0.1Hz~30MHz
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Product
Packaged Direction Finding Systems
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Doppler Systems offers packaged systems allowing for easy installation and use our radio direction finding systems. The packaged systems include a direction finding processor, an FM receiver, power distribution, a data interface to configure the system and obtain data from the system, and an appropriate antenna or antennas. Additionally, some customers require wireless networking to connect fixed and/or mobile sites together to share data. We also can provide laptop computers with our systems fully configured to interface with the direction finder and run our software.
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Product
Digital FM Telemetry
90332
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The 90332 digital FM telemetry systems is designed to be used with full-bridge, strain gage sensors. The system features a miniature transmitter powered by a simple 9V battery, and a remote receiver capability of receiving the digital transmission over long distances. The digital technique eliminates many of the problems associated with traditional analog frequency modulated telemetry systems. Improvements with a digital technique include elimination of ripple, temperature drift characteristics, and higher signal resolution.
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Product
500 / 1000 / 1500MHz Synthesized Signal Generator
Model 2100 Series
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- Combine with DDS and PLL Techniques- 1500MHz Maximum Frequency- 1 ppm High Accuracy, Less Distortion- Dual Independent Outputs- AM, FM, FSK, PSK Modulation
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Product
Vector Spectrum Analyzer
VSA6G2A
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Frequency Range: Low Band: low band 100Hz~2MHz, high Band 1MHz~6.2GHz. Frequency Spans: 100Hz~1.35MHz at FFT mode, 1.35MHz~6188MHz at PLL mode full span sweep time 820ms. Sweep Time: PLL mode: 262ms to 200s, FFT mode: 3.33ms~40s. Aplications: FM radio, Two way radio, TV application, Remote controller; Cellular and PCS, CDMA and GSM, GPRS, Edge,WCDMA and 3G, LTE, 915MHz, 2.4G ISM band application, 5.8G ISM band application.
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Product
RF Signal Generators, Up to 6 GHz
SG380 Series
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Stanford Research Systems, Inc.
The SG380 Series RF Signal Generators use a unique, innovative architecture (Rational Approximation Frequency Synthesis) to deliver ultra-high frequency resolution (1 µHz), excellent phase noise, and versatile modulation capabilities (AM, FM, ØM, pulse modulation and sweeps) at a fraction of the cost of competing designs.
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Product
PXIe-5672, 2.7 GHz, 20 MHz Bandwidth Digital Upconverter Included, PXI Vector Signal Generator
779900-03
Vector Signal Generator
2.7 GHz, 20 MHz Bandwidth Digital Upconverter Included, PXI Vector Signal Generator —The PXIe‑5672 features quadrature digital upconversion, which reduces waveform download and signal generation time. It is a general-purpose vector signal generator that can generate standard modulation formats such as AM, FM, PM, ASK, FSK, MSK, GMSK, PSK, QPSK, PAM, and QAM. The PXIe‑5672 delivers a highly flexible and powerful solution for scientific research, consumer electronics, communications, aerospace/defense, and semiconductor test applications as well as emerging areas including software defined radio, radio frequency identification (RFID), and wireless sensor networks. For specific communications standards, you can use various software add-ons to generate modulated signals according to standards such as WCDMA, DVB‑H, and ZigBee.
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Product
PXI-5651, 3.3 GHz RF Signal Generator
779670-01
Signal Generator
3.3 GHz PXI RF Analog Signal Generator—The PXI‑5651 features continuous-wave generation capabilities with FM, 2‑FSK, or OOK modulation. It uses direct digital synthesis (DDS) for high-resolution frequency hopping or phase-continuous sweeping for fixture and device characterization applications. The PXI‑5651 is ideal for clocking nonstandard sample rates, such as WCDMA signals at baseband or intermediate frequency (IF). With these versatile signal generators, you can perform analog and digital modulation through the onboard DDS circuit, which gives you frequency modulation and frequency-shift keying for applications such as bit error rate test, antenna testing, or even keyless entry. You can also perform amplitude modulation using on-off keying.
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Product
RF Generator
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SIGLENT’S SSG3000X series of signal generators have a frequency range of 9 kHz to 2.1 GHz/3.2 GHz. They provide normal analog modulation such as AM, FM, and PM. They also provide pulse modulation and pulse train generator. In addition, when used with baseband generator such as SDG6000X, They can generate IQ modulated signals. With their high accuracy and pure outputs, the SSG3000X series is the right choice for R&D, education, and manufacturing.
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Product
RF Telemetry Receivers, Tracking Receivers, Down Converters
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Lumistar offers single PCI slot multi-band FM receivers. The same product in a “drive Bay” configuration is available. All Lumistar FM receivers can come without the FM demodulator use as antenna tracking receivers or for use as down converters used with an IF receiver for multi-mode digital combining and demodulation. Dual channel versions are also available.
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Product
RF Testing & Engineering Services
RF Testing & Engineering Services
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Our team has world-class radio frequency experience in defense contracting, design, engineering, manufacturing, quality, research, and testing. The staff at 360°RF includes numerous design patent holders, a sitting member of the CEA's (Consumer Electronics Assoc.) Standards Committee, as well as columnists, editors, and authors for trade publications and reference books, including Radio Shack, Antennas, Selection, Installation, and Projects, TV, FM, CB, Cellular, Satellite, and Shortwave.
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Product
Signal Generators
SSG3000X Series
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SIGLENT’S SSG3000X series of signal generators have a frequency range of 9 kHz to 2.1 GHz/3.2 GHz. They provide normal analog modulation such as AM, FM, and PM. They also provide pulse modulation and pulse train generator. In addition, when used with baseband generator such as SDG6000X, They can generate IQ modulated signals. With their high accuracy and pure outputs, the SSG3000X series is the right choice for R&D, education, and manufacturing.
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Product
PXI-5670 , 2.7 GHz RF Vector Signal Generators
778768-04
Vector Signal Generator
2.7 GHz PXI Vector Signal Generator—The PXI‑5670 has the power and flexibility you need for product development applications from design through manufacturing. It can generate custom and standard modulation formats such as AM, FM, PM, ASK, FSK, PSK, MSK, and QAM. The PXI‑5670 delivers a highly flexible and powerful solution for scientific research, consumer electronics, communications, aerospace/defense, and semiconductor test applications as well as for emerging areas including software defined radio, radio frequency identification (RFID), and wireless sensor networks.
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Product
0.1Hz-2MHz AM/FM Functional Generator
MFG-8202
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Features:• Low distortion, high stability• Linear and logarithmic sweep function• Sweep time and width adjustable• External Voltage Control Frequency (VCF)• Internal & external modulation (AM/FM) with modulation control• Output signal compatible with TTL/CMOS• Seven types of waveforms such as sine, square, triangle and ramp• 5W power output (ONLY for model no with “B”)• DC offset and 40bD attenuation can be applied to main output signal• Built-in frequency meter 0.1Hz~30MHz
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Product
PXIe-5673E, 6.6 GHz PXI Vector Signal Generator
781262-02
Signal Module
6.6 GHz PXI Vector Signal Generator - The PXIe‑5673E is a wide-bandwidth module that, when combined with the appropriate software, can generate a variety of signals. With the Modulation Toolkit for LabVIEW, it can generate different waveforms including AM, FM, CPM, ASK, FSK, MSK, PSK, QAM (4‑, 16‑, 64‑, and 256‑QAM), multitone signals, arbitrary waveforms, and many others. In addition, you can combine these vector signal generators with standard-specific software to generate signals for GPS, GSM/ EDGE/WCDMA, WLAN, WiMAX, DVB‑C/H/C, ISDB‑T, ZigBee, and others. With PXIe‑5673E stream‑from‑disk capabilities, you can generate continuous waveforms that are up to several terabytes in length.
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Product
Universal Radio Test Set for FM and AM Radio Stations of the VHF Band
RST-430
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RST - 430 Radio-Communication Service Tester is designed for maintenance and repair of FM and AM radio stations operating in the HF and VHF bands. It is a multipurpose radio measuring device for maintenance of communication equipment in indoor and field conditions.
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Product
Handheld RF Spectrum Analyzer With 1MHz To 1.3 Or 2.7GHz Bandwidth Options
PSA Series 3
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1MHz to 1300MHz or 2700MHz frequency rangeResolution bandwidths of 300Hz to 10MHz 1:3:10-105dBm typical noise floor at -40dBm reference levelMeasurement in dBm or dBμV, mV or μWZero span mode with AM and FM audio demodulationTrace modes of normal, peak hold and trace averageLive, View (copy) and Reference traces in contrasting coloursTwin markers with readout of absolute & difference valuesSmart marker movement with selectable peak trackingFrequency counter with 10Hz ResolutionFrequency presets and independent state storageAuto-find automatically sets sweep parameters for the highest signal foundUnlimited storage for waveforms, set-ups and screensUser assignable file names, file stamping from real-time clockUSB interfaces for Flash drives and PC connectionComprehensive status and context sensitive help screensMore than 3 hours continuous operation from a chargeSmaller and lighter than other spectrum analyzers (weight only 0.58 kg)
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Product
Airborne Receiver
MS 2015
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Receiver shall receive the telemetry signal transmitted by the airborne TGS unit. This unit is a single conversion super heterodyne FM receiver operating at 1486.5MHz. This unit has four connectors. They are RF input connector (J1), Power connector (J2), Signal connector (J3) for AGC signal and a Video output connector (J4). This unit operates at 28V DC and consumes a typical power of 5.6 watts.
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Product
PCI Single Channel Multi-Band Down Converter (ISA and VME Legacy Versions Available)
LS-25-D
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Lumistar offers single PCI slot multi-band FM receivers. The same product in a “drive Bay” configuration is available. All Lumistar FM receivers can come without the FM demodulator use as antenna tracking receivers or for use as down converters used with an IF receiver for multi-mode digital combining and demodulation. Dual channel versions are also available.
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Product
5 / 10 / 20 MHz Multiwaveform Arbitrary Signal Generator
MASG Series
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- Economic and Light Weight- Dual Output with Same Characteristic- 1µHz Frequency Resolution- 11 Built-in Waveforms and 5 User defined Arbitrary Waveforms- AM, FM, PM, PWM, FSK Modulation, Frequency Sweep and Burst Function- Built-in 100MHz Frequency Counter- Arbitrary Waveform Editing PC Software- USB Host, USB Device
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Product
High-Power Digital Wattmeters
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The Coaxial Dynamics High-Power Digital Wattmeters are designed for the accurate measurement of complex RF Waveforms such as CDMA (Code Division Multiple Access), DAB (Digital Audio Broadcast), DTV (Digital TV) and HDTV (High Definition TV), as well as CW, AM and FM.
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Product
Signal Processor Board
MS 1532
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- Frequency coverage from 5 kHz to 30 MHz in 1-Hz steps- High dynamic range: +30 dBm 3rd-order intercept typical- Digital filtering provides 58 IFBWs from 56 Hz to 8.0 kHz with exceptional shape factors- AM, Synchronous AM, FM, CW, USB, LSB & ISB detection modes standard- Tunable notch filter- Fast, flexible scanning with 100 memory channels- Large readable LED displays & user-friendly controls- Noise blanking & pass band tuning- Internal switchable preamplifier & attenuator- Operator-selectable RS-232, RS-485, or- RS-422 remote control- Viretx 5 FPGA based design (Two virtex for image processing)- LPC2468 ARM 7 Processor based design- MIL1553B and RS485 Interface- Two High speed 14 bit ADC (125MSPS) for I & Q Sampling- Direct sampling 2-30MHz- Audio CODEC- Conduction Cooled Board
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Product
Low Differential Pressure Switch -
1800
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Essential for industrial environments, the Series 1800 combines small size and low price with 2% repeatability for enough accuracy for all but the most demanding applications. Set point adjustment inside the mounting stud permits mounting switch on one side of a wall or panel with adjustment easily accessible on the opposite side. UL and CSA listed, and FM approved.
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Product
Field Strength Meter
FIM-71 VHF
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The Model FIM-71 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-71 is suitable for practically all types of RF emission measurements in the 45 MHz to 225 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 a meter dynamic range of either 20 dB or 60 dB. A dc analog output voltage, proportional to the meter indication, is provided for driving a chart recorder. A leveled output from the calibrating oscillator is available for measuring cable insertion loss, filter response, amplifier gain, 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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Product
Omnidirectional Antennas
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In radio communication, an omnidirectional antenna is a class of antenna which radiates equal radio power in all directions perpendicular to an axis (azimuthal directions), with power varying with angle to the axis (elevation angle), declining to zero on the axis.[1][2] When graphed in three dimensions (see graph) this radiation pattern is often described as doughnut-shaped. Note that this is different from an isotropic antenna, which radiates equal power in all directions, having a spherical radiation pattern. Omnidirectional antennas oriented vertically are widely used for nondirectional antennas on the surface of the Earth because they radiate equally in all horizontal directions, while the power radiated drops off with elevation angle so little radio energy is aimed into the sky or down toward the earth and wasted. Omnidirectional antennas are widely used for radio broadcasting antennas, and in mobile devices that use radio such as cell phones, FM radios, walkie-talkies, wireless computer networks, cordless phones, GPS, as well as for base stations that communicate with mobile radios, such as police and taxi dispatchers and aircraft communications.
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Product
Telemetry Simulators & Test Transmitters
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Command Data Telemetry Simulators offer a dynamic way to create or change a PCM data stream on a word by word basis on the fly. This PCM data stream can be used to modulate an FM or SOQPSK RF output at S-Band or L-Band. In addition to simulating a new telemetry stream, the telemetry simulators can play back and loop an archived data file (which can also be changed on the fly) or create pseudo-random patterns.
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Product
30MHz Arbitrary Waveform Signal Generator
Model AWG30D
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- 4.3′ High Resolution TFT LCD Display- Two Independent Channels Output, Same Characteristic- 1μHz Frequency Resolution for whole range- 120 MSa/s Sampling Rate, 14 Bits Vertical Resolution- 5 Standard Waveforms, 50 Built-in and 5 User-defined Arbitrary Waveforms- FM, AM, PM, PWM, Sum, FSK, BPSK and SUM Modulation, Sweep and Burst Function- Channel Coupling and Combine Features On CHB- Build in 350MHz Frequency Counter- Arbitrary Waveform Edit PC Software- Standard Interface: USB Host, USB Device and RS-232
