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  • Selecting Antenna/Power Amplifier Combinations for the Coming New RF Immunity Standards
    candidate for the upper frequency for consumer products. When test facilities test products for compliance to these new RF immunity standards, which antenna/amplifier combination will prove the most effective at producing the necessary volts per meter over the new band? What is the cost-benefit
  • Low Phase Noise VCO Design for PCS Handset Applications
    ). The bias resistor values were. meters have significant consequences for phase noise in an. designed to distribute the DC voltages evenly between X1 and X2. actual low noise RF VCO. In designing a low noise VCO, we need. Resistor R6 (RL) was chosen as low as 100 to minimize the DC. to define
  • Radio Frequency Emissions Effect on Sensors (.pdf)
    White noise on the plant floor can cause electrical interference that often affects the function of proximity sensors. This radio frequency (RF) "noise" is caused by the use of variable frequency drives, stepper motors and high powered communication devices, such as AM/FM radios, two-way radios
  • Effects of Ultrasonics on Health
    with Sound Level Meters. Sound level meters are available which measure sound levels at the workplace. The sound. must be measured at ear level where the worker stands while working. The noise expo-. sure is measured in “dBA, slow response.” The calibration of such instruments is done at. frequencies
  • Medical Device Link . Design Technologies for Immunity to Electromagnetic Threats
    how to design sensitive devices to withstand various transient and steady-state radio-frequency (RF) immunity threats. Emission issues are also a major concern, especially with the use of higher-speed clock circuits. Electrostatic discharge test (IEC 801-2: 1991) being performed according to EN
  • Agilent: Spectrum Analysis Basics
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10. RF attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12. Low-pass filter or preselector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12. Tuning
  • Maximizing Eb/No (C/N) Accuracy (Application Note 701)
    The CNG series of generators have the ability to make highly accurate Eb/N0 or C/N ratios when used correctly. The basic operation of the CNG is depicted by the RF test block diagram in Figure 1, which is on the front panel of the instrument, dynamically displayed with the internal power meter
  • Designing a Reliable Industrial Ethernet Network (.pdf)
    grounding techniques. Copper cable installations should use four twisted pair CAT5, CAT5e, or CAT6 for. 10/100/1000 Mbs Ethernet Networks. The use of copper twisted pair cable should be. limited to indoor use in low noise areas, and the maximum cable run should be 100. meters. In most industrial

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