radio frequency

radio frequency

Pages: [prev] 1 2 3 4 5 6 7 8 9 10 11 [next]

• 20 meter short loaded vertical antennas - N4SPP
  
  Loading is a way to lower the resonant frequency of an antenna radiator This technique ...
  [ Hits: 232 | Votes: 1 | Rating: 9 ]

• What is Horn Antenna - frambos
  
  Horn Antenna The energy of the beam when slowly transform into radiation the losses are ...
  [ Hits: 74 | Votes: 0 | Rating: 0 ]

• Trapped vertical Antenna - F5ZV
  
  This antenna is an omnidirectional and multiband and it is well suited for DX enthusiasts ...
  [ Hits: 357 | Votes: 7 | Rating: 2.71 ]

• Radio Scout Frequencies - K2BSA
  
  Information on frequencies suggested as Scout amateur radio frequencies These were initially suggested by the ...
  [ Hits: 45 | Votes: 0 | Rating: 0 ]

• Satellite Frequency List - JE9PEL
  
  All Satellites Frequency List Update A complete list of satellite frequencies available in several formats ...
  [ Hits: 141 | Votes: 1 | Rating: 1 ]

• Recognition of CW signs at different listening levels and frequencies - PubMed
  
  The recognition of telegraphy masked by noise at 40 and 80 signs min telegraphy speed ...
  [ Hits: 81 | Votes: 1 | Rating: 7 ]

• Ham Radio: Using Repeaters - ylab
  
  The most basic form of repeater receives communication on one frequency and re transmits at ...
  [ Hits: 92 | Votes: 1 | Rating: 8 ]

• Calculation of the Maximum Usable Frequency - IEEE
  
  This paper presents the method of calculating the maximum usable frequency MUF and field strength ...
  [ Hits: 244 | Votes: 2 | Rating: 5.5 ]

• HF communication prediction tools - BOM
  
  Online HF Communication prediction system provided by the Australian Governament Buerau of Metereology allow to ...
  [ Hits: 169 | Votes: 0 | Rating: 0 ]

• Transforming the Elecraft K3 into a SDR with K3 - N2NC
  
  This article will explain a few of the ways author use an external SDR and ...
  [ Hits: 347 | Votes: 0 | Rating: 0 ]

• Icom 706MkIIG Frequency Calibration - kv5r
  
  Unlike older radios the 706 uses only one crystal oscillator called the Master Oscillator All ...
  [ Hits: 214 | Votes: 2 | Rating: 9 ]

• Speech synthesiser for FT-817 - sarcnet
  
  This construction project is for anyone wanting to give this popular little radio a voice ...
  [ Hits: 125 | Votes: 0 | Rating: 0 ]

• LAN-IQ SDR - afedri
  
  Stand Alone Software Defined Radio direct sampling receiver from 30 kHz to 1700 00MHz continuous ...
  [ Hits: 258 | Votes: 1 | Rating: 8 ]

• UK Scanner Frequencies - m3gnn
  
  UK frequency list provide reference table to lister to Police scanner channels UHF VHF Amateur ...
  [ Hits: 166 | Votes: 1 | Rating: 1 ]

• Repeater-START App - Luke
  
  The amateur radio listener for when you re not on the radio Repeater START the ...
  [ Hits: 151 | Votes: 0 | Rating: 0 ]

• A switched Capacitor Audio Filter - AA8C
  
  Here is a rather nice audio filter for use with Ham Radio gear It features ...
  [ Hits: 73 | Votes: 0 | Rating: 0 ]

• Gimme Five - QRP SSB Transceiver - DK7IH
  
  Gimme Five reloaded a compact 5 band QRP SSB transceiver in SMD technology This unit ...
  [ Hits: 285 | Votes: 1 | Rating: 10 ]

• Understanding computer-generated RFI - NU1N
  
  Radio Frequency Interference RFI has always been a source of concern for the Radio Amateur ...
  [ Hits: 84 | Votes: 0 | Rating: 0 ]

• SDR Receiver with RTL-SDR and Gnu Radio - VK3FOWL VK3YSP
  
  This project is a Software Defined Radio Receiver It has a frequency range of 24MHz ...
  [ Hits: 490 | Votes: 1 | Rating: 1 ]

• 2m to 70cm Transverter Circuit - VK4ADC
  
  A 70cm 432 MHz Transverter Project transverter circuit is an electronic device that converts a ...
  [ Hits: 82 | Votes: 0 | Rating: 0 ]

Pages: [prev] 1 2 3 4 5 6 7 8 9 10 11 [next]