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• Parallel Square Conductor Transmission Line Calculator - Design a parallel square stock balanced transmission line with this calculator.
  [ Hits: 259 | Votes: 2 | Rating: 10 ]

• The DC Isolated 1:1 Guanella - The DC Isolated 1:1 Guanella, transmission line transformer by N7ZWY
  [ Hits: 698 | Votes: 0 | Rating: 0 ]

• Transmission line calculator - A windows impedance calculator software by VK3UM
  [ Hits: 1207 | Votes: 4 | Rating: 3.75 ]

• Parallel Circular Conductor Transmission Line Calculator - Design a parallel circular wire balanced transmission line with this online calculator. This calculator is a tool for designing balanced transmission lines with a specific desired characteristic impedance Zc and made of parallel circular conductors of a given diameter d.
  [ Hits: 633 | Votes: 6 | Rating: 4.5 ]

• Matching with one-twelfth-wavelength feed line - Matching with a half wave or wuarter wave coaxial cable is pretty well known, but an existing 1961 system to do that with two one-twelfth-wavelength transmission lines.
  [ Hits: 541 | Votes: 1 | Rating: 10 ]

• Amphenol RF - Amphenol RF is a leading manufacturer of coaxial connectors for use in radio frequency, microwave, and data transmission system applications. Headquartered in Danbury, Connecticut, USA, Amphenol RF has global sales, marketing and manufacturing locations in North America, Asia and Europe. Standard products include RF connectors, coaxial adapters and RF cable assemblies. Custom engineered products include multi-port ganged interconnect, blindmate and hybrid mixed-signal solutions.
  [ Hits: 176 | Votes: 0 | Rating: 0 ]

• Tait Communications - Tait Digital Mobile Radio (DMR) is an affordable digital communications platform that delivers a range of workforce efficiencies and operational benefits for mission critical users.
  [ Hits: 255 | Votes: 1 | Rating: 1 ]
• Harris - Harris DMR Manufacturer, provides advanced, technology-based solutions that solve government and commercial customers' mission critical challenges
  [ Hits: 300 | Votes: 2 | Rating: 6 ]

• How Far Can I Talk With My Radio? - In order to determine total distance that a transmission may be received by two elevated antennas, we must add together the radio horizon distance of both antennas.
  [ Hits: 381 | Votes: 0 | Rating: 0 ]

• Keeping a Station Log Book - The reasons for logging your amateur activity fall into three categories: legal, operational and personal. Legally, a log of your transmissions would be invaluable in proving your innocence in an interference complaint. Operationally, having a log of past contacts is a resource when filling out that DX QSL card that may have taken months to arrive
  [ Hits: 823 | Votes: 1 | Rating: 10 ]

• Digital Communications Interconnect - DCI MotoTRBO IPSC Amateur Radio Group Our mission is to connect to and converse with the wider DMR Ham community by openly sharing our network resources and talkgroups to enable dynamic connections to all radio amateur DMR groups.
  [ Hits: 204 | Votes: 2 | Rating: 10 ]

• What is ESSB - Extended Single SideBand is any SSB transmission that exceeds the audio bandwidth of common 2.9kHz SSB J3E modes by essb.us
  [ Hits: 308 | Votes: 0 | Rating: 0 ]

• IC-7600 Extended RX TX - Instructions to modify the ICOM IC-7600 to extend reception and trasmission
  [ Hits: 2539 | Votes: 16 | Rating: 6.73 ]

• Spurious emissions from an FT847 on 70 MHz - A further study of the spurious emissions from an FT847 on 70 MHz by G7CNF
  [ Hits: 285 | Votes: 0 | Rating: 0 ]

• JT65-HF HB9HQX Edition - Amateur Radio software for transmission/reception of JT65 protocol. Brought to you by hb9hqx
  [ Hits: 3150 | Votes: 18 | Rating: 6.55 ]

• EXChat - This is a computer program for Amateur Radio transmission and reception using a computer and radio transceiver The program equips your computer with a one sentence at a time chat-mode for operation on the HF bands. You use it in the same way as you would Skype or cell-phone TXTing. This facilitates rapid-fire QSOs and especially makes nets easier by ZL2AFP
  [ Hits: 563 | Votes: 0 | Rating: 0 ]

• Improving transmission Intellegibility - Improving the intelligibility of an SSB transmissions What is important when processing speech. Which bands have more impact on speach ?
  [ Hits: 554 | Votes: 1 | Rating: 6 ]

• Anatomy of a Coax Cable - Coax Cable FAQ, an interesting article on characteristics of coaxial cables, and how evaluate the differences among different shielded transmission cables.
  [ Hits: 368 | Votes: 1 | Rating: 5 ]

• Send Morse on your VHF FM rig - A device to allow the transmission of Morse on VHF/UHF FM-only transceivers by VK3YE
  [ Hits: 506 | Votes: 1 | Rating: 6 ]

• Measuring line impedance with MiniVNA - How to measure the characteristic impedance of a unknown transmission line using MiniVNA
  [ Hits: 694 | Votes: 1 | Rating: 8 ]

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