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Engineering Reference Materials for RF Schematics
  • RF Switching

    The primary reasons for using vacuum relays in RF applications are their exceptional insulating qualities and their low RF contact resistance-as low as .03 ohms at 30 MHz. This low RF resistance remains stable throughout the service life of the relay because of the advantages provided by the vacuum

  • AN-00100 - RF 101: Information for the RF Challenged

    This application note goes to great lengths to. remove the mysteries of RF. The science of RF is unlike any other area of discipline in electronics. Proficient RF design requires. sophisticated test equipment, years of experience,lots of money, and a big smile from Above.Fortunately, while actual

  • Switchmode RF Power Amplifiers

    Switchmode RF Power Amplifiers. Switching mode RF amplifiers have become a hot area of RF/wireless design. This book explores both the theory behind switching mode RF amplifiers and design techniques for them.

  • RF Power Amplifiers

    RF Power Amplifiers. In this comprehensive reference, the author presents a full account of RF amplifiers and shows that understanding large-signal RF circuits is simply a matter of understanding the basic principles and their applications.

  • Silicon RF Power MOSFETS

    Silicon RF Power MOSFETS. Providing general guidelines for understanding the design and operation of the transistors, this book describes the physics, design considerations and RF performance of silicon power MOSFETs.

  • Introduction to RF Stealth

    Introduction to RF Stealth. Providing a new generation of designers with a firm and proven basis for new developments, this book presents and explains first order methods for the design of active and passive stealth properties.

  
Discussions about RF Schematics
  • Re: Commercial Radio Station Being Picked Up On 447.2375 MHz

    Joshi, perhaps you can explain to us how you would tell the difference between the feed and the broadcast signal, especially since they are identical except for the carrier frequency, power level and a few microseconds of delay as the signal is amped up to broadcast levels. And let's rule out...

  • Re: Surge Arrester

    What kind of transmitter? RF, hardwired, bit rate, signal frequency. Ya think the signal edge has been affected? How? Did you use any test equipment to measure the effects. Can you show a schematic diagram of the transmitter, and receiver circuits. What type of surge arrester, silicon, RTV. What is...

  • Re: RC car circuit

    When your car turns either way, the two motors have an oposite polarity to one another. Find the transistor outputs from the RF decoder that control the motors and XORthem; use the gate output to control a PWM before the DC BUS (e.g. 1=30%, 0=100%). You'll need basic skills in electronics.

  • Re: Wireless remote level control

    How about a laser pointer aimed at a sensor (since you have a clear line of sight)? It potentially could be a lot cheaper than an RF system. If interested, I'll whip out a schematic . . .

  • Re: Sine-wave Light Dimmer

    cnpower I too have an interest in a sine wave controller which would reduce or eliminate RF harmonic interference and hash. May I also have a copy of the circuit schematic you mention? lshurtle@juno.com Lonnie...

  • Re: Crystal oscillator problem

    Bread boarding HF is difficult. Typically you can use blank copper clad PC board as a ground plane and then apply or glue strips or pieces of the same PCB to solder components to. We did this type of bread boarding with a lot of RF stuff. We simulate everything in LTSpice (its free from Linear Tech...

  
News about RF Schematics
  • Mars Opportunity Defies Expectations

    The Mars rover Opportunity landed on the Mars' Meridani Planum on January 25, 2004. Opportunity has traveled 26.2 miles during its nearly 11 years on Mars. To celebrate it's recently completed marathon I figured I'd post some cool images and stats about the rover. Here's a schematic of Opportunity.

  • Analytik Jena Introduces PlasmaQuant? MS - Eco Plasma ICP-MS Mass Spectrometer

    With the introduction of the PlasmaQuant? MS, Analytik Jena has extended its portfolio with an ICP-MS. The newly developed mass spectrometer with patented solid-state RF generator for plasma...

  • Dr. Michael Foley, Former Executive Director of the Bluetooth Special Interest Group (SIG), Joins RF Digital's Simblee Team

    LOS ANGELES--(BUSINESS WIRE)--Dr. Michael (Mike) Foley, former executive director of the Bluetooth SIG, joins RF Digital''s Simblee team to bring the IoT to life.

  • Rudolph Receives Multiple System Orders for Inspection, Metrology and Analytics of High-End Frequency Filters

    FLANDERS, N.J.--(BUSINESS WIRE)--BAW/SAW filters used in RF devices require inspection, metrology and process control software to ensure precision. These filters are a critical technology for mobile device functionality and the IoT.

  • Radiative forcing bias of simulated surface albedo modifications linked to forest cover changes at northern latitudes

    Radiative forcing bias of simulated surface albedo modifications linked to forest cover changes at northern latitudesBiogeosciences, 12, 2195-2205, 2015Author(s): R. M. Bright, G. Myhre, R. Astrup, C. Ant?n-Fern?ndez, and A. H. Str?mmanIn the presence of snow, the bias in the prediction of surface albedo by many climate models remains difficult to correct due to the difficulties of separating the albedo parameterizations from those describing snow and vegetation cover and structure. This can be overcome by extracting the albedo parameterizations in isolation, by executing them with observed meteorology and information on vegetation structure, and by comparing the resulting predictions to observations. Here, we employ an empirical data set of forest structure and daily meteorology for three snow cover seasons and for three case regions in boreal Norway to compute and evaluate predicted albedo to those based on daily MODIS retrievals. Forest and adjacent open area albedos are subsequently used to estimate bias in top-of-the-atmosphere (TOA) radiative forcings (RF) from albedo changes (Δα, Open-Forest) connected to land use and land cover changes (LULCC). As expected, given the diversity of approaches by which snow masking by tall-statured vegetation is parameterized, the magnitude and sign of the albedo biases varied considerably for forests. Large biases at the open sites were also detected, which was unexpected given that these sites were snow-covered throughout most of the analytical time period, therefore eliminating potential biases linked to snow-masking parameterizations. Biases at the open sites were mostly positive, exacerbating the strength of vegetation masking effects and hence the simulated LULCC Δα RF. Despite the large biases in both forest and open area albedos by some schemes in some months and years, the mean Δα RF bias over the 3-year period (November-May) was considerably small across models (?2.1 ? 1.04 Wm?2; 21 ? 11%); four of six models had normalized mean absolute errors less than 20%. Identifying systematic sources of the albedo prediction biases proved challenging, although for some schemes clear sources were identified.

  
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Product Announcements for RF Schematics
Carlisle Interconnect Technologies
RF Connectors

Carlisle Interconnect Technologies is your reliable resource for high-performance RF/microwave connectors designed for military/aerospace, instrumentation and wireless infrastructure markets. Vertical integration and extensive manufacturing capabilities ensure that quality, always the primary consideration and on-time delivery are never compromised. Carlisle IT provides in-process testing to measure characteristic impedance, capacitance, dielectric withstanding voltage and time delay mismatch...

Triad Magnetics
Custom RF Transformers

Triad Magnetics manufactures custom RF transformers to match your specifications including designs for LAN, ISDN, xDSL, VOIP and other data applications.

JFW Industries, Inc.
Custom RF Test Systems

JFW's unique capabilities allow us to customize RF solutions to your individual testing needs, with no NRE charge.   Our engineers specialize in rapid turn-around designs for Multi-Channel Attenuation Systems, RF Matrix Switches and Custom Switch Assemblies.   All designed to your specifications.   Applications include Automated Test, RF Traffic/Load Simulation and RF Lab Connectivity. 50BA-002-95. 50PA-506. 50PA-683. 50PA-519. 50MS-273. 50PMA-033. 50SA-267