astro

astro

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• Portable HF antennas - Excel sheet containing technical comparisons of commercial HF portable antennas compiled by ON4SKY. Includes pictures, manufacturer, db gain, band coverage, F/B ratio, price, weight and dimensions.
  [ Hits: 2977 | Votes: 1 | Rating: 10 ]

• Understanding Radiation Patterns - Understanding and using antenna radiation patterns
  [ Hits: 534 | Votes: 0 | Rating: 0 ]
• Basics of antennas - The current, the voltage, the impedance, the bandwidth, the polarization, and how the earth influences the famous radiation pattern.
  [ Hits: 701 | Votes: 0 | Rating: 0 ]
• The mystery of radials - Effect of radials on the efficiency of antennas.
  [ Hits: 368 | Votes: 0 | Rating: 0 ]

• Antenna Gain - How much gain ? This article help you on understanding how read antenna gain values in order to evaluate antenna performance
  [ Hits: 5321 | Votes: 9 | Rating: 5 ]

• K0OOK Bikerscum - Patrick St. Jean - Harleys, Astronomy, HAM Radio, and other stuff
  [ Hits: 351 | Votes: 0 | Rating: 0 ]

• Listen to Radio Meteors live - Echos of USAF (Formally NAVSPASUR) radar signals reflected off of meteor trails received at Roswell, New Mexico
  [ Hits: 1432 | Votes: 11 | Rating: 6.91 ]

• Radio Astronomy Supplies Inc. (W6/PA0ZN ) - International supplier of radio astronomy products
  [ Hits: 479 | Votes: 1 | Rating: 10 ]

• Astrodyne - Dedicated to the design, manufacturing, technical support, and delivery of innovative and cost effective power solutions for worldwide applications. AC/DC switching power supplies and DC/DC converters.
  [ Hits: 685 | Votes: 0 | Rating: 0 ]

• marnic.org - F5VLB and EA4EOZ have designed a small but powerful system using satfinder and standard LNB to make radioastronomy. A step by step descritpion for the novice about radioastronomy, VLB and listening to echo of meteorite.
  [ Hits: 471 | Votes: 0 | Rating: 0 ]

• F5VLB amateur radio astronomy station - F5VLB and EA4EOZ have designed a small but powerful system using satfinder and standard LNB to make radioastronomy. A step by step descritpion for the novice about radioastronomy, VLB and listening to echo of meteorite.
  [ Hits: 1620 | Votes: 4 | Rating: 10 ]

• Catania Observatory - Sun obserevatory in Catania Italy offer daily sun reports
  [ Hits: 381 | Votes: 0 | Rating: 0 ]

• QST Icom IC-706 review - A complete review of Icom IC-706 review published in 1999 by QST
  [ Hits: 2066 | Votes: 4 | Rating: 7.5 ]

• QST : Kenwood TS-2000 review - Product review & short takes columns from QST magazine
  [ Hits: 7852 | Votes: 12 | Rating: 7.66 ]

• Kenwood TS-570D review - The Kenwood TS-570D(G) transceiver (I), by Thierry Lombry, ON4SKY
  [ Hits: 1099 | Votes: 1 | Rating: 9 ]

• The Yaesu FT-1000mp mark-v review - Luxorion Yaesu FT-1000MP Mark-V transceiver review
  [ Hits: 1112 | Votes: 4 | Rating: 7.75 ]

• Memphis Amateur Electronics, Inc. - New and used ham radio equipment supplier. we carry hundreds of ham radio products including amateur radios from alinco, icom, kenwood, and yaesu, plus ham radio products from mfj, ldg, diamond antennas, hustler, ameritron, astron power supplies, and books .
  [ Hits: 2252 | Votes: 2 | Rating: 10 ]
• Memphis Amateur Electronics - Carry hundreds of ham radio products including amateur radios from Alinco, Icom, Kenwood, and Yaesu, plus ham radio products from MFJ, LDG, Diamond Antennas, Hustler, Ameritron, Astron power supplies, and books of all kinds
  [ Hits: 2132 | Votes: 4 | Rating: 5.5 ]

• Radio Astronomy Supplies - Radio Astronomy Supplies astronomy products since 1994 including radio telescopes, LNA's, noise callibration source, books, videos.
  [ Hits: 326 | Votes: 0 | Rating: 0 ]

• Astron RS35m Power Supply Schematic - Astron RS35m Power Supply Schematic annotated with Notes from QST Hands-On Radio, "Experiment #35 Power Supply Analysis" PDF File
  [ Hits: 10242 | Votes: 32 | Rating: 8.25 ]

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