dual

dual

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• Shortened dipole for 10 & 40m bands - A shorten Dual-Band Dipole with overall length of about 11 m. For this antenna traps are substituted by inductors, in order to cover the 10 & 40 m. Bands.
  [ Hits: 4138 | Votes: 1 | Rating: 1 ]

• 80/160 Dual band vertical - This 80/160 meter antenna is constructed from six 12 foot aluminum tubes to form a slip-up mast antenna some 60 feet high by K0RWU
  [ Hits: 5856 | Votes: 0 | Rating: 0 ]

• The flower pot antenna - A portable dual-band antenna working principally on 10 meters but also close to the 30 meter band. It's compact, light, economical and doesn't need any radial.
  [ Hits: 13404 | Votes: 1 | Rating: 10 ]

• The YU7EF Duo Band Antenna - The original project of a dual band yagi antenna for 50 and 70 mhz, published on dubus 2/2007 by YU7EF
  [ Hits: 1213 | Votes: 1 | Rating: 9 ]

• F5DQK Vinecon 6N4 - A dual band antenna for 50Mhz and 70Mhz with lots of pictures and diagrams by F5DQK
  [ Hits: 1576 | Votes: 3 | Rating: 3 ]
• Dualband yagi for 50 70 Mhz - PA5DD version of the dual band yagi antenna for 50 and 70 Mhz
  [ Hits: 2231 | Votes: 0 | Rating: 0 ]

• VHF/UHF Wideband Portable Dipole - A portable dualband dipole robust and compact antenna usable for horizontal and vertical polarisation by ON6MU
  [ Hits: 3252 | Votes: 3 | Rating: 7 ]

• Dualband EH Antenna - A detailed project of a dual band EH antenna by F5IXU in french
  [ Hits: 3188 | Votes: 1 | Rating: 1 ]

• The DBJ-1 VHF-UHF Dual Band J-Pole - Searching for an inexpensive, high performance dual band base antenna for VHF and UHF ? Build a simple antenna that uses a single feed line for less than $10.
  [ Hits: 6290 | Votes: 5 | Rating: 6 ]
• J Pole Antenna - Dual Band (2 Meter/70 cm) Solid Aluminum J-Pole
  [ Hits: 4902 | Votes: 8 | Rating: 6.62 ]
• The simple 144/440 copper pipe J - A simple dual band VHF UHF jpole antenna Projects by Dale Kubichek
  [ Hits: 8388 | Votes: 18 | Rating: 8 ]
• WX2NJ JPole bicycle antenna - 2 meter or Dual Band J-pole bicycle antenna
  [ Hits: 3872 | Votes: 3 | Rating: 6.67 ]

• Dualband 17m/20m Moxon - A Moxon rectangle antenna for 17 and 20 meters band
  [ Hits: 4012 | Votes: 1 | Rating: 4 ]

• Homebrew a dual band antenna for handhelds - A project by DL5DBM for a VHF UHF antenna suitable for handheld transceivers
  [ Hits: 5314 | Votes: 18 | Rating: 5.4 ]

• QSL Cards - How to Make Your Own - If you have a computer with word processing software and a printer, you can make your own custom QSL cards, with each card individually printed for the ham you just contacted. WA7S show you how.
  [ Hits: 3063 | Votes: 14 | Rating: 6.14 ]

• N6FQ Fallbrook Amateur Radio Club - It is our purpose to further the exchange of information and cooperation between members, to promote radio knowledge, fraternalism and individual operating efficiency
  [ Hits: 571 | Votes: 1 | Rating: 3 ]

• Radio Arena - Supplier of two-way radio products and accessories to large and small businesses, volunteer groups, radio amateurs and individuals. Transceivers, receivers, antennas cw keys based in London UK
  [ Hits: 829 | Votes: 1 | Rating: 10 ]

• SCR-Log - Scr-log freeware logging program for mac, windows, linux and dos. designed for school, club, and individual class stations to use during school club roundup.
  [ Hits: 1524 | Votes: 5 | Rating: 10 ]

• Spectrum Analyzer Real-time FFT - Eight-channel Audio Spectrum Analyzer is a set of Real-Time Multi-Channel Gauges for investigation of data accepted from any ADC you will want or 16-, 24- and 32-bit ADC of sound card. WDM drivers support. FFT Spectrum Analysis, OscilloScope, Frequency counter, AC/DC voltmeter, Signal-to-Noise Ratio, Signal-to-Noise and Distortion, Spurious-Free Dynamic Range, Effective Number Of Bits, Total Harmonic Distortion, Inter-Modulation Distortion, Phase Shift. Special modes of dual-channel FFT spectral analysis: Separate channels spectra, Spectra of digital sum, difference, product of two signals, Spectrum of digital product of original signal and its fundamental, Spectrum of Real and Complex Transfer Function, Cross Spectrum. Standart weighing of spectra according IEC and CCIR. Oscilloscope modes (for dual-channel ADC) are: original signals, sum, difference, dependence of one channel on another, amplitude distribution of input signals.
  [ Hits: 11316 | Votes: 9 | Rating: 7.77 ]

• A low cost UHF/VHF duplexer - Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box. This circuit is a design within a cost of US$10.
  [ Hits: 8615 | Votes: 16 | Rating: 5.88 ]

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