Products/Services for Digital SWR Meter Ham Radios

  • Radios-Image
    Radios - (374 companies)
    ...indicator Some FRS radios and GMRS radios use AA or AAA batteries. Others use NiMH rechargeable batteries and may include a battery pack and charger. Related Information Electronics360—Digital Radio Transmitter Signals Market Disruption Ahead...
  • SWR Meters-Image
    SWR Meters - (10 companies)
    SWR meters are used to measure the standing wave ratio (SWR) in radio equipment. They are sometimes called VSWR meters. SWR meters are used to measure the standing wave ratio (SWR) in radio equipment. They are sometimes called VSWR meters...
  • Digital Panel Meters-Image
    Digital Panel Meters - (608 companies)
    Digital panel meters measure and display processes and electrical variables via an alphanumeric digital readout. Digital panel meters are digital displays intended to be mounted in a panel, such as a control panel. They typically read some type...
  • Digital Resistance Meters-Image
    Digital Resistance Meters - (191 companies)
    Digital resistance meters are instruments that measure electrical resistance. They use solid-state components and display values digitally. Resistance, which is measured in ohms, is the opposition to the flow of electric current of a conductor...
  • Spectrum Analyzers and Signal Analyzers-Image
    Spectrum Analyzers and Signal Analyzers - (244 companies)
    ...transform (FFT) and swept-tuned. The Fourier analyzer basically takes a time-domain signal, digitizes it using digital sampling, and then performs the mathematics required to convert it to the frequency domain, and displays the resulting spectrum...
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    Radio Modems - (163 companies)
    ...as radio waves in a specific frequency according to a defined radio technique. This digital data is encoded prior to transmission, and then decoded prior to receipt. Once decoded, the serial data is provided to the connected device. In the diagram...
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    S Meters - (10 companies)
    ...of signal amplitude is desired. Power dissipation is the amount of power that is consumed and converted to heat. Display types for s meters include analog devices such as meters with needles, and digital products with alphanumeric displays. Applications...
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    Terrestrial Radio and Satellite Radio Services - (30 companies)
    There are three basic types of terrestrial radio service providers: conventional, digital, and trunking. Conventional terrestrial radio uses analog, voice-only communications over a limited geographic area. Digital terrestrial radio is designed for voice...
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    Digital Multimeters - (544 companies)
    Digital multimeters (or multi-meters) are used to measure electrical quantities such as voltage, current, resistance, frequency, temperature, capacitance, and time period measurements. Digital multimeters (or multi-meter) are instruments...
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    Digital Ammeters - (218 companies)
    ...and trends. They have both positive and negative leads and feature extremely low internal resistance. Digital ammeters are connected in series with a circuit (and never parallel) so that current flow passes through the meter. High current flow may...

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  • Practical Antenna Handbook, Fifth Edition > Testing and Troubleshooting
    A relatively new breed of instrument, often called the SWR analyzer, finds increasing favor with SWL, repair shop technician, and ham radio operator alike. .... and its current production version, the 259B, combine a VSWR analyzer with a digital frequency counter and .... The meter will then read the VSWR at the that frequency.
  • SWR Meter
    • Digital Multimeters. .... • Ham Radio . .... • Resistance Meters . .... • SWR .
  • RF Concepts
    • SWR Meters (2). .... • Analog Digital (1). .... • Ham Radio (6) .
  • Arduino Projects for Amateur Radio > Suppliers and Sources
    The power supply polarity protection and the high SWR protection make the radio durable. .... 8-10 W SSB transceiver that can be ordered for either the 40 meter or 20 meter .... This is a clever combination of several useful ham devices. .... Peaberry SDR V2 kit is a Software Defined Radio using a 96 kHz digital I/Q interface common…
  • Transmitter Circuits, page 4
    …notes that I made at the original schematic, it worked fine with a SWR of 1 : 1. .... remote control transmitter / receiver based on SM5162 and SM5172 chips -  The radio control uses pre .... 40 Meter , 5 Watt QRP Transmitter -  As ham operators, we like to broaden our horizons by trying something new. .... 4-20 mA Digital -to-Process Current Transmitter -  AN-21 Analog Devices App Note - Describes a…
  • Arduino Projects for Amateur Radio > A Directional Watt and SWR Meter
    Setting each of the three digital outputs (8, 9, and 10) LOW turns each of the three … left is to test the build by loading up the test software, and begin calibrating the meter ! .... Completed components of the SWR /Wattmeter. .... If you don't have a suitable Wattmeter, look to borrow one from another local ham . .... shown, it is always a good idea to make sure that the cables, radio , and dummy load…
  • Arduino Projects for Amateur Radio > A DDS VFO
    Follow the procedure described in Chapter 15 (Directional Wattmeter/ SWR Indicator) for winding toroids and for tinning .... This method of attaching the DDS VFO to a radio in place of a crystal oscillator is .... The Blekok Micro 40SC is a 40 meter Single Sideband (SSB) and CW QRP transceiver developed in .... By sensing when transmitting (using a digital input on the keying circuit) it is possible to slightly … DDS VFO provides a low-cost stable source of low-level RF in the HF ham bands.
  • RF / Analyzers / Wireless Analyzers / Network
    …offers multiple display formats such as logarithmic amplitude, linear amplitude, standing-wave ratio ( SWR ), phase, group delay .... Company: Mini Radio Solutions. .... features and capabilities which are perfect for checking antennas and RF circuits for hams and commercial users. .... Vector Network Analyzer features high accuracy and large dynamic range, which adopted Direct Digital Synthesis (DDS) signal … Master combines the functionality of a cable and antenna analyzer, spectrum analyzer, power meter , transmitter analyzer (CDMA…
  • Radio Monitoring
    SWR on output, not worse than. .... ARK-PR5 “Argamak” Digital Radio Receiver. .... Reception under water is possible (at depths of several meters ). .... multiplication of its samples by the window functions (weighting functions) is used: Hann, Hamming , Natoll, Barlett, Blackman…
  • Digital and Analogue Instrumentation: testing and measurement
    Hamming . .... 336 Digital and analogue instrumentation. .... the analyser no longer sweeps across a spectrum; instead it behaves like a conventional (superheterodyne) radio receiver. .... measure power at RF and microwave frequencies are of two types: absorption power meters and throughline power … of thermistor based instruments is from 1 μW to 10 mW with typical SWR from 1.5…