design frequency

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design frequency

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Antennas : Antenna Calculators
  • Amateur Vertical Antenna Calculator  pop - This basic calculator is designed to give the aproximate length (height) of a particular vertical antenna, for the frequency and wavelength chosen.
    [ Hits: 45952 | Votes: 223 | Rating: 5.41 ]
Antennas : Dipole
  • Shortened Center-Fed Half-Wave Dipole - Design your owm HF shiortened dipole. Includes a diagram of a lumped-constant loaded dipole antenna that is intended to fit in available space, rather than requiring a full 1/2 wavelength, at a specified frequency
    [ Hits: 2820 | Votes: 5 | Rating: 9.8 ]
Antennas : Towers
  • KC1XX Contest Station - Amateur Radio Station owned by Matt Strelow. The station is designed for competition in the multi-operator multi-transmitter category of high-frequency DX contests. Running with 7 towers 6 rotators, 8 beverage listening antennas, and 4 spotting verticals
    [ Hits: 1743 | Votes: 2 | Rating: 6.5 ]
Manufacturers : Antennas : HF
  • Valcom Fibreglass Whip Antennas - Manufacturer of Fibreglass Whip Antennas, Low and mediun Frequency, HF and VHF Antennas Specialized in the design and manufacturing of a full range of Beacon (MF), AM Broadcasting 540 - 1700 KHz, HF 1.7 to 30 MHz, VHF 30 to 156 MHz and UHF 200 to 500 MHz antennas.
    [ Hits: 3315 | Votes: 2 | Rating: 8 ]
Manufacturers : Antennas : Land Mobile
  • Laird Technologies - Design and manufacture antennas for mobile devices, wireless data including WiMAX, WiFi, and WISP (Wireless Internet), two-way radio and RFID (Radio Frequency Identification).
    [ Hits: 215 | Votes: 0 | Rating: 0 ]
Manufacturers : Antennas : Marine
  • ZCG Scalar - Designers and manufacturers of radio Frequency antennas. HF - 3000 MHz TET Emtron HF Yagis, Antennas for Wireless applications, Marine antennas, Land mobile, Mobile antennas.
    [ Hits: 1702 | Votes: 7 | Rating: 9.29 ]
Manufacturers : Cable and Connectors
  • Radio Frequency Systems - RFS is a global designer and manufacturer of cable and antenna systems plus active and passive RF conditioning modules, providing total-package solutions for wireless infrastructure.
    [ Hits: 464 | Votes: 1 | Rating: 10 ]
Manufacturers : Test Equipment : Oscilloscope
  • Gage Applied Technologies - Gage applied technologies designs and manufactures high-speed data acquisition systems, high-speed digitizers in pci / cpci / pxi or pc oscilloscopes, providing utmost measurement fidelity for high frequency signals.
    [ Hits: 530 | Votes: 0 | Rating: 0 ]
Software : APRS
  • APRS-Beacon - The purpose of the APRS-Beacon is to provide simple APRS-compatible position beacons for up to three Objects. It is designed to 'stand alone' and does not monitor other traffic on the frequency. It can use a single-port TNC (in 'native' mode), a single- or dual-port TNC in Kiss mode or the AGW Packet Engine in order to transmit on up to four radio ports.(When running with AGWPE, APRS-Beacon will also work with Windows 2000)
    [ Hits: 3359 | Votes: 6 | Rating: 2.83 ]
Software : Antenna analysis
  • AC6LA MoxGen - MoxGen will show you the dimensions and generate an antenna model file for a 50 ohm Moxon Rectangle antenna, given the design frequency and wire size
    [ Hits: 4782 | Votes: 14 | Rating: 6.71 ]
Software : DSP
  • NBEMS - The Narrow Band Emergency Messaging System (NBEMS) for Windows is a suite of software programs designed for point-to-point, fast, error-free, emergency messaging up to or over 100 miles distant, and takes up a very minimum of frequency space on the ham bands, leaving more space for other ham activites.
    [ Hits: 1271 | Votes: 1 | Rating: 10 ]
Software : Databases
  • Frequency Filer - Frequency Filer is database program designed for people who use a great many different radio frequencies. It is primarily intended for amateur radio operators, short-wave listening enthusiasts and scanner users. The program makes it easy to keep all of your important frequency information in one place, displayed in a logical format to facilitate easy retrieval. Frequency information can be displayed as a list and can be viewed on a world globe. Other features include easy data backup and custom field names. Included is database import utility that can be used as a general file conversion utility. The globe display can also be used as general geographic aid for countries, cities, states, rivers, and lakes. You may even find your home town. Windows Shareware
    [ Hits: 4377 | Votes: 6 | Rating: 6.5 ]
Software : Filter Design
  • Nuhertz Technologies - Leading supplier of low and high frequency electronic filter design products for the design of wireless telecommunications equipment, semiconductors and more
    [ Hits: 1680 | Votes: 3 | Rating: 7.67 ]
Software : Low Frequency
  • Baudline signal analyzer - A Linux based FFT spectrum analyzer designed for time-frequency browsing and scientific data visualization. Oscilloscope waveform, statistical histogram, accumulated spectral trace,Weak Signal reception, continuos data logging, FFT Analyzer and specialized measurement windows.
    [ Hits: 12313 | Votes: 32 | Rating: 8.85 ]
Software : Macintosh
  • The KB6IBB Utilities - Ham radio frequency list consolidation software. The Ham Radio database can house a unlimited number of records. Holding frequency information from DC to Daylight. The Radio Scanner Database is designed to emulate a radio scanner. A 5,000 record table is provided and is organized by channel number.
    [ Hits: 1010 | Votes: 1 | Rating: 7 ]
Software : PSK31
  • RX-PSK31 - Easy to use Audio Spectrum and PSK31 decoding program specially designed for SWL's who don't need TX or for anyone who just like to monitor PSK31 or analyse signals. Adjustable DSP and Spectrum settings for audio and frequency spectrum to set for best decoding of PSK31.
    [ Hits: 3078 | Votes: 12 | Rating: 7.41 ]
  • RX-PSK31 - Easy to use Audio Spectrum- and PSK31 decoding program specially designed for SWL's who don't need TX or for anyone who just like to monitor PSK31 or analyse signals. Adjustable DSP and Spectrum settings for audio and frequency spectrum analasys or to set it for best decoding of PSK31 signals. By ON6MU
    [ Hits: 2914 | Votes: 2 | Rating: 10 ]
Software : Propagation
  • ACE-HF Propagation Prediction Software - ACE HF Pro, ACE HF Mobile are Radio Frequency (RF) propagation analysis tools designed for military applications. This version allows the user to analyze the entire HF spectrum using a single fixed transmitter location and multiply receive locations. Commercial version.
    [ Hits: 9863 | Votes: 32 | Rating: 6.38 ]
Technical Reference : Frequency Counter
  • 40MHz Frequency Counter Module - Design for a very low cost 6-digit frequency counter module using of the shelf components
    [ Hits: 2296 | Votes: 5 | Rating: 4.8 ]
Technical Reference : Radio Frequency Interference : BPL
  • Are you ready for BPL - Broadband over power lines (BPL) is a technique for transmission of high speed data (broadband Internet) over powerlines. Access BPL technology injects radio frequency energy into powerlines which were not designed for transmission of radio frequency energy, and leak substantial energy that causes interference to radiocommunications service
    [ Hits: 659 | Votes: 0 | Rating: 0 ]

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