echo b

echo b

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• Some secrets of Common Mode Chokes revealed - This is a small collection of K9YC info and my experiences. Problems by feed lines of 1/2 lambda length. CMCs in transmitting and receiving systems. Antenna unbalance, Maximal allowed power, Choke winding tips.
  [ Hits: 174 | Votes: 1 | Rating: 10 ]
• Chokes and Temperature changes - The influence of temperature changes in Common Mode Chokes. To get an indication of the impedance behavior when the core temperature changes, the author tested a CMC by heating it with a hairdryer, and measuring its temperature with an infrared thermometer. When the CMC temperature rises from 30C to 90C, the frequency of maximal impedance shifts down from ca.10 MHz to ca.7.2 MHz, or by a factor 1.4.
  [ Hits: 46 | Votes: 0 | Rating: 0 ]

• Echo Horn Antenna at Nasa Images - The Horn reflector antenna at Bell Telephone Laboratories
  [ Hits: 451 | Votes: 0 | Rating: 0 ]

• V31YN - 2020 Jan 6 - 2020 Feb 29 By DJ4KW as V31YN and DK9GG as V31GW; 160-10m; CW FT8 SSB; see Web for full QSL and operational details QSL via LoTW.
  [ Hits: 159 | Votes: 0 | Rating: 0 ]

• ARRL/VEC Yokohama VE Team - Volunteer group registered by the ARRL/VEC that conduct FCC amateur radio license examinations in Yokohama.
  [ Hits: 223 | Votes: 0 | Rating: 0 ]

• The first Amateur Lunar contacts - The first EME history was written in 1944 when first EME echoes were received on 564 MHz by German Wurzmann radar according to the article by Dr. Ing. W. Stepp.
  [ Hits: 325 | Votes: 0 | Rating: 0 ]

• EchoLink Android - EchoLink for Android is an edition of the EchoLink software that runs on an Android smartphone or tablet, such as a Motorola Droid or an HTC Evo.
  [ Hits: 2931 | Votes: 4 | Rating: 8.25 ]

• WB2HWW NYC - A very active repeater system in NYC streaming live 24/7 on thier website & on shoutcast under the listing WB2HWW & also can be heard world wide on 10 meters 29.660 with links on Echolink & IRLP
  [ Hits: 629 | Votes: 5 | Rating: 8.2 ]

• Kenwood TM-D710E - VHF/UHF FM Mobile Transceiver with APRS and EchoLink Functionality official Kenwood UK site
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• Kenwood TM-D710 at APRS.net - Kenwood TM-D710 - VHF/UHF Mobile FM Transceiver with APRS and EchoLink Functionality
  [ Hits: 250 | Votes: 0 | Rating: 0 ]

• Boondock Echo 2 way ham radio recorder - Boondock Echo offers a revolutionary communication experience with an internet-backed recording and playback device for two-way radios. It ensures clear, reliable communication in remote or challenging conditions. Key features include real-time recording, internet connectivity, seamless integration, playback flexibility, rugged design, and a user-friendly interface. Services include product training, hardware maintenance and repair, customization, and regular firmware updates for optimal performance.
  [ Hits: 56 | Votes: 1 | Rating: 10 ]

• EMECalc EME Calculator - EmeCalc predict your own Moon echo, level of Sun noise, moon noise and more by VK3UM
  [ Hits: 844 | Votes: 5 | Rating: 6 ]

• WSJT-X - WSJT-X implements communication protocols or modes called FT8, FT4, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and WSPR, as well as one called Echo for detecting and measuring your own radio signals reflected from the Moon. These modes were all designed for making reliable, confirmed QSOs under extreme weak-signal conditions. WSJT-X works on Windows Linux and MacOS. This is the official WSJT-X distribuition site.
  [ Hits: 13100 | Votes: 70 | Rating: 7.25 ]

• DTMF Functions - In Sysop mode, EchoLink can be configured to accept commands through the local receiver using DTMF tones
  [ Hits: 251 | Votes: 0 | Rating: 0 ]

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