frequencies

frequencies

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• Practical Guanella 1:1 balun - This article proposes a lossy transmission line model of a practical Guanella 1:1 balun that is effective for all frequencies within and immediately adjacent to the pass band
  [ Hits: 3618 | Votes: 3 | Rating: 3.33 ]

• Beverage transformer notes - In this article, the author discusses the importance of good transformers for Beverages, especially for common-mode isolation. The author recommends #43 ferrite for the transformer, and provides the turns required for different core types. The author also recommends using lower permeability ferrites for better performance at lower frequencies.
  [ Hits: 1319 | Votes: 1 | Rating: 10 ]

• Balcony and pedestrian mobile motor tuned loop - This antenna was designed to meet the requirements of a light body worn small magnetic loop covering all the frequencies continuously from 7 MHz to 29.4 MHz
  [ Hits: 2884 | Votes: 0 | Rating: 0 ]

• Digital Operating Modes - Description, frequencies and sound samples of most popular amateur radio digital modes by DG8FBV
  [ Hits: 1252 | Votes: 4 | Rating: 8 ]

• US Communication antennas - UnderBumper diversity licence plate antenna system (front and rear license plates) become the antennas. Available in VHF, UHF, Dual Band and other frequencies. We also manufacture mobile antennas for HF VHF UHF wideband antennas
  [ Hits: 580 | Votes: 0 | Rating: 0 ]

• Hellschreiber frequencies - Suggested frequencies for HELLSCHREIBER operation by the feldhell club
  [ Hits: 2016 | Votes: 6 | Rating: 7 ]
• Space frequency listing - Downlink frequencies for all kind of satellites
  [ Hits: 886 | Votes: 4 | Rating: 4 ]

• Radiosonde : how to listen to them - Frequencies and location of every meteo radiosonde launching centres in Europe. Equipments, antennas, history, SondeMonitor and BalloonTrack tutorials
  [ Hits: 748 | Votes: 3 | Rating: 6.67 ]

• Using Olivia MFSK - Short description of the olivia mfsk mode and explanation of how to use olivia mode and proper radio setup including recommended olivia frequencies
  [ Hits: 722 | Votes: 2 | Rating: 5 ]

• Arizona Repeaters Directory - Arizona repeaters sorted by counties, with location maps! Also includes Robet's List of verified Arizona scanner frequencies.
  [ Hits: 3918 | Votes: 19 | Rating: 6.31 ]

• Sydney, Police Scanner Frequencies - Sydney, Australia Area Police Scanner Frequencies
  [ Hits: 2774 | Votes: 8 | Rating: 2.87 ]
• Australian State related frequencies - Submitted frequencies by visitors
  [ Hits: 3767 | Votes: 7 | Rating: 5.29 ]

• Frequenzdatenbank.de - Frequency database for Germany. Emergency services, aircrafts, radio and paging system with over 2000 frequencies from all over Germany.
  [ Hits: 1414 | Votes: 14 | Rating: 4.15 ]

• Scanner Food - Scanner Frequencies - Tri-Cities Frequencies, Live Scanners, CTCSS information and more
  [ Hits: 811 | Votes: 4 | Rating: 9.25 ]

• National Scanner Frequency Guide - List of scanner frequencies used in the US for emergency or inter-agency communications, allocated nationally.
  [ Hits: 936 | Votes: 4 | Rating: 5.25 ]

• Specialist Antennas - Antenna products and accessories for commercial, industrial, Emergency Service and military applications covering VHF, UHF, TETRA, ISM and GSM frequencies and beyond.
  [ Hits: 486 | Votes: 0 | Rating: 0 ]

• RadioComm - RadioComm can be used to program your Icom radio's memory, or to create nice radio-frequency spectra or to interface your radio to a huge database of frequencies.
  [ Hits: 1227 | Votes: 3 | Rating: 10 ]

• RF Connectors for upper frequencies - WA1MBA article on RF connectors for microwave
  [ Hits: 393 | Votes: 0 | Rating: 0 ]

• Interdigital bandpass filter designer - Fill out the form to design a bandpass filter as described in the January 1985 issue of Ham Radio Magazine. These filters are generally limited to frequencies above 200 MHZ because their size is slightly longer than 1/4 wavelength
  [ Hits: 1117 | Votes: 6 | Rating: 7.67 ]
• W3LPL Receiving Bandpass Filters - Project of receive only filters optimized for minimal loss and very high rejection of frequencies below 75% of the filter center frequency by K1TTT
  [ Hits: 1083 | Votes: 0 | Rating: 0 ]

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