frequency

frequency

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• Ground Plane Antenna Calculator - This calculator is designed to give the vertical length of a quarter-wave ground plane antenna, and the length of each of the four radials for the selected frequency you have entered
  [ Hits: 914 | Votes: 61 | Rating: 5.34 ]
• Full Wave Loop Antenna Calculator  ^updated - Use this online calculator to determine the length of a full-wave loop antenna from the frequency. Both metric and English units of measurement are supported. Quarter-wave matching section lengths are also calculated.
  [ Hits: 930 | Votes: 7 | Rating: 6.14 ]
• Vertical Antenna Calculator  ^updated - Use this online calculator to determine the length of a quarter-wave antenna from the frequency. Both metric and English units of measurement are supported.
  [ Hits: 919 | Votes: 9 | Rating: 6.32 ]
• Dipole Calculator - Use this online calculator to determine the length of a dipole antenna from the frequency. Both metric and English units of measurement are supported.
  [ Hits: 944 | Votes: 11 | Rating: 6 ]

• The Balcony Mounted Magnetic Loop Antenna - A NEC Model Comparative Analysis of Physical Orientation and Performance. The small magnetic loop is a useful compromise antenna for limited space and portability. For this reason, the magnetic loop antenna is a practical high frequency antenna solution for the restricted space of apartment dwellers
  [ Hits: 815 | Votes: 3 | Rating: 9.67 ]

• Collins 618F-1A VHF Aircraft Transceiver - Restoring a 1965 Collins 618F-1A VHF aircraft radio. This radio was designed for light aircraft as an early frequency-synthesized radio built in 2 separate chassis.
  [ Hits: 313 | Votes: 2 | Rating: 10 ]

• VE2CYH Covey Hill Amateur Radio Club - VE2CYH The Covey Hill Amateur Radio Club Repeater is located on the Covey Hill, mountain and it operates on the frequency of 146.685
  [ Hits: 213 | Votes: 3 | Rating: 9.33 ]

• HF Bands - A review of the HF ham radio bands, considere by far the most popular bands in the amateur service. HF bands offer local QSOs and world-wide propagation are all possible at almost anytime with careful selection of the right frequency for the time of day, time of year, and current state of the sunspot cycle.
  [ Hits: 372 | Votes: 1 | Rating: 10 ]

• Real-time OWF, MUF & maximum NVIS frequency for your QTH - Real-time dashboard with 3000km optimal working & maximum usable frequency as well as maximum NVIS frequency; all for your internet access location.
  [ Hits: 702 | Votes: 5 | Rating: 3.6 ]

• Icom 706MKIIG modification for frequency injection - On this page, N6GN and K6PZB are documenting two different methods to modify the Icom IC 706MKIIG for use with an external frequency reference.
  [ Hits: 461 | Votes: 1 | Rating: 10 ]

• ICOM IC-746PRO Frequency Calibration - Frequency calibration is a user adjustment on the rear panel. Learn how to calibrate the IC-746 Pro.
  [ Hits: 362 | Votes: 1 | Rating: 10 ]

• Icom IC-2300H Modification - IC‐2300 MARS/CAP mod expanded frequency range 136‐174 MHz
  [ Hits: 2079 | Votes: 12 | Rating: 6.08 ]

• Danny Shortwave And Radio DX - This channel is all about radio listening and dxing. I will be covering frequency bands like longwave, AM/MW and shortwave. I'm embarking on my renew interest in this hobby since my childhood.
  [ Hits: 271 | Votes: 2 | Rating: 10 ]

• flmsg - Fast Light Message - FLMSG is a simple forms management editor for the amateur radio supported standard message formats. Form data can be transferred between computers either using standard internet email or via radio frequency broadcasts typically made by an amateur radio operator on your behalf.
  [ Hits: 661 | Votes: 1 | Rating: 9 ]

• Radio Frequency - ICOM R8500 - The RadioFrequency Program is a professional Software dedicated to all HAM, SWL and Radio Listeners. Freeware. Included is a Text-CSV dBase Converter. Connection to the ICOM R8500 Receiver. Special Scanning Feature. Special Search Feature x large dBase.
  [ Hits: 699 | Votes: 2 | Rating: 7.5 ]

• How to Design an RF Power Amplifier - This video will provide a foundation for understanding how power amplifier circuits work. If you are new to High Frequency Power Amplifier Circuit Design, this is the place to start.
  [ Hits: 674 | Votes: 1 | Rating: 10 ]

• CI-V based remote antenna switch - An home made remote antenna switch project capable to read the current working frequency from the radio and to change antenna accordingly
  [ Hits: 490 | Votes: 0 | Rating: 0 ]

• Online Inductive Reactance Calculator - An online inductive reactance calculator, accepts as input Frequency and Inductance
  [ Hits: 87 | Votes: 2 | Rating: 1 ]

• Introduction to RF & Wireless Communications Systems - This tutorial covers an introduction to RF, wireless, and high-frequency signals and systems, includes explaination of what is RF, why operate at Higher Frequencies, Frequency Shifting through Frequency Mixing.
  [ Hits: 282 | Votes: 1 | Rating: 6 ]

• Precision VXO - The Precision VXO (PVXO) and its matching Crystal Test Fixture (CTF) were created to provide a low cost means of evaluating the characteristics of crystals and a means of measuring their series resonant frequency.
  [ Hits: 210 | Votes: 1 | Rating: 1 ]

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