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493 links and 9 categories about frequency on dxzone.com

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Antennas : Antenna Calculators
  • Slim Jim antenna calculator  updated - How to make a simple but effective Slim Jim antenna. It includes a calculator to work out all the mesurements for the frequency you require.
    [ Hits: 5789 | Votes: 45 | Rating: 5.93 ]
Antennas : Dipole Antennas : Helical
  • Helical Antennas - The Helical antenna description, a simple way of obtaining high-gain and a broad band of frequency characteristics
    [ Hits: 1108 | Votes: 1 | Rating: 10.00 ]
Antennas : Traps
  • Tuning HF Coaxial Antenna Traps - The problem with making your own trapped HF antennas is usually getting the coaxial traps tuned to frequency.
    [ Hits: 1678 | Votes: 2 | Rating: 4.00 ]
Ham Radio : Clubs : North America : USA : Oklahoma Internet and Radio : Podcast
  • Resonant Frequency - Resonant Frequency: The amateur radio podcast was created to help get information on amateur radio out to the new ham and the ham that wants to find out about different aspects of the hobby they are thinking about trying out.
    [ Hits: 177 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Microwave
  • PRO-COMM INC - High power, UHF, L-band, S-band, C-band, microwave frequency amplifier and oscillator devices, pulsed, CW, fixed-tuned, or tunable devices in the range of 600 MHz to 2000 MHz
    [ Hits: 168 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Test Equipment : Frequency Counter
  • Tektronix - Frequency Counters - Tektronix Frequency Counters pack the functionality of a frequency counter, meter and timer into one instrument.
    [ Hits: 97 | Votes: 0 | Rating: 0.00 ]
Operating Aids : Radio Spectrum
  • SSTV Frequency List - Where to look on the Bands for SSTV
    [ Hits: 673 | Votes: 2 | Rating: 5.50 ]
Operating Modes
  • Introduction to Digital Modes - Wireless Society of Southern Maine, Digital Modes Page, introduction to amateur radio digital modes, including FLDIGI, PSK31, RTTY, high speed CW, Slow Scan Television, HF Weather Fax, WeFAX, MFSK16, OLIVIA, G-TOR, AMTOR, MT63, Digital SSTV, Frequency Key Shifting, and more
    [ Hits: 453 | Votes: 3 | Rating: 10.00 ]
Radio Equipment : HF Transceivers : Kenwood TS-870S Radio Scanning : Regional : Australia
  • Home - Hunter Valley Scanning - Radio Frequency Scanning Newcastle and the Hunter Valley. Lots of Frequencies plus videos and photos and web links.
    [ Hits: 868 | Votes: 6 | Rating: 5.33 ]
Shopping and Services : Kits and Components
  • Hagerty Radio Company - Offer a Direct Digital VFO Kits (variable-frequency oscillator) using the Analog Devices AD9951 by WA1FFL
    [ Hits: 168 | Votes: 1 | Rating: 8.00 ]
Shortwave Radio : Schedules
  • What's On Short-Wave right now?  updated - Find out what station is broadcasting in what language on what frequency. View schedules by frequency, language or station.
    [ Hits: 9382 | Votes: 258 | Rating: 8.73 ]
Software : JT65
  • JT65-HF - Download JT65-HF Amateur Radio software for reception/transmission of JT65A protocol with an emphasis upon its usage in the High Frequency Amateur Bands.
    [ Hits: 6926 | Votes: 10 | Rating: 6.71 ]
Software : Propagation
  • MicroMUF - MicroMUF is a windows free HF propagation calculator that you can use to estimate the MUF (Maximum Usable Frequency) and LUF (Lowest Usable Frequency) between any two points on the Earth.
    [ Hits: 676 | Votes: 1 | Rating: 4.00 ]
Software : iPhone
  • iRFC for iPhone - IRFC offers a full Radio Frequency Calculator on the go for network impedance adaptation with smith chart
    [ Hits: 266 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Beacon keyers
  • 70MHz Beacon - Description of the beacon hardware and DDS frequency source used for G4JNT personal beacon
    [ Hits: 157 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Frequency Counter
  • Programmable 50 MHz Counter - The frequency counter described here was built up using the "sandwich" construction and uses low cost components
    [ Hits: 825 | Votes: 0 | Rating: 0.00 ]
  • 12GHz frequency meter - A frequency counter device up to 12GHz by DL5NEG
    [ Hits: 984 | Votes: 2 | Rating: 9.50 ]
  • The BBRC Frequency Counter - The Burnham Beaches Radio Club frequency counter is a PIC micro controller based frequency counter with LCD readout. It can be used stand alone or the in built offsets allow integration into a receiver
    [ Hits: 553 | Votes: 0 | Rating: 0.00 ]
  • The BBRC Frequency Counter - PIC micro controller based frequency counter with LCD readout
    [ Hits: 536 | Votes: 0 | Rating: 0.00 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • 20m CW QRP Transceiver - The direct-conversion receiver uses an audio-based automatic gain control, an LC tone filter, and a 100-kHz crystal for frequency alignment. The same VFO is used for transmitting and receiving by DC1YB
    [ Hits: 1521 | Votes: 5 | Rating: 1.20 ]
Technical Reference : Test Equipment
  • Crystal tester - Crystal tester project, crystals are used to control the operating frequency of transmitters, and it is used in radio frequency converters, oscillators, filters for cw, ssb and many other applications.
    [ Hits: 381 | Votes: 2 | Rating: 10.00 ]
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