call id

call id

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• Homebrew Balun Case - Balun case construction, tipically to host toroid cores. Size of case depends on power to handle. By DL5DBM
  [ Hits: 1345 | Votes: 1 | Rating: 10 ]

• Antenna Transmatch Tips - Tips on tuning antennas using Antenna Tuning Units also called ATU. This article explains the functions and ills of tuners, along with some guide- lines for building an ATU.
  [ Hits: 3312 | Votes: 5 | Rating: 6.4 ]

• An automatically tuned 7-30MHz mobile antenna - This is a base-loaded vertical antenna that mounts on the car's roof. The loading coil is designed as a variable inductor, with a three-legged chariot that travels up and down inside the coil, with grooved brass wheels running on the coil turns, and driven by a slotted rotor tube.
  [ Hits: 4049 | Votes: 2 | Rating: 1 ]

• The Notebook Antenna - the multiband Notebook Antenna, so called because the entire antenna will fit easily inside a 1" thick 3-ring binder
  [ Hits: 4803 | Votes: 5 | Rating: 6.2 ]

• Multi Band Antenna Traps - These devices are called Traps, but they are actually more like frequency sensitive switches. They are parallel resonant, high Q, tuned circuits which provide a very high impedance at their frequency of resonance.
  [ Hits: 4851 | Votes: 3 | Rating: 6 ]

• Russian robinson club - Club Russian Robinson for amateurs interested in radio communication from polar stations, islands and maritime mobile objects RRC founded in 1993. Goals are consolidation of radio amateurs, operating now or operated in the past on islands, drift-ice research, arctic and marine stations, signing their personal callsigns or as participants of DX-peditions.
  [ Hits: 786 | Votes: 1 | Rating: 1 ]

• HamLog.eu - This online database, called HAMLOG, can be used free of charge by any radio amateur worldwide.
  [ Hits: 672 | Votes: 1 | Rating: 10 ]

• The KO6YD Screwdriver Antenna Memory - The Screwdriver Antenna Memory (SAM) product is designed to enhance the mobile antenna commonly called the "Screw Driver". It replaces your current control unit and provides an automated memory feature that eliminates the visual coil tuning method commonly used.
  [ Hits: 3101 | Votes: 4 | Rating: 7.5 ]

• A Beginner's Guide to Making CW Contacts - Jack Wagoner WB8FSV, a very well done article on how start a CW QSO, how to answer a CQ, how call your CQ and more. A must reading for beginners
  [ Hits: 6536 | Votes: 14 | Rating: 8.86 ]

• K6MVR MVRC Radio Club - The Mt.Vaca Radio Club (Call sign K6MVR ) owns and operates repeater systems in and around Sacramento, California. The systems provide reliable coverage for mobile stations throughout the Sacramento Valley region and beyond to Modesto, Chico, the Sierras, and parts of the Bay Area.
  [ Hits: 1061 | Votes: 1 | Rating: 10 ]

• Automatic Identification Systems (AIS) - Automatic identification systems (AISs) are designed to be capable of providing information about the ship to other ships and to coastal authorities automatically.
  [ Hits: 1468 | Votes: 2 | Rating: 1 ]

• BB Shopping UK Distributor of PMR 446 - We stock a range of two way PMR446 radios. PMR 446 is a license free frequency, which means that you can communicate for up to 3km (terrain allowing) without any call charges or license requirements. They can be used in most European countries and are ideal for holiday trips.
  [ Hits: 546 | Votes: 1 | Rating: 10 ]

• Radio Astronomy Supplies - Radio Astronomy Supplies astronomy products since 1994 including radio telescopes, LNA's, noise callibration source, books, videos.
  [ Hits: 325 | Votes: 0 | Rating: 0 ]

• WM8C Ham Radio Callsign Hat and Cap - Custom embroidered ham radio call sign hats and caps
  [ Hits: 1610 | Votes: 5 | Rating: 8.2 ]

• DF9CY Project Auriga - PA is a JAVA software package containing several programs, SW/VHF/UHF Logbook (imports format from RADIOMAN, VMT), Log conversion to HTML format, Import and export functions for RADIOMAN, CT RES files, BV QSL Labels, CSV etc. Internet DX-Cluster support, Keeps track of your worked Callsigns, Checks your worked Grid Squares per band, Databases for worked Grids and Callsigns Uses K1EA CQWW.CTY country file, Easy command line version for terminal operation Moontracking as clock, Pathloss calculation
  [ Hits: 1871 | Votes: 0 | Rating: 0 ]
• Fcc Lookup System - The FCC Lookup System software uses the standard FCC data files in an advanced lookup system for matching a call sign to a user. The software creates index files to allow rapid searches without modifying the FCC data file. Available for both Windows and Linux.
  [ Hits: 1164 | Votes: 2 | Rating: 1 ]

• CallSign Software - HamStationExtreme, hamradiostation and scopestation makers. CallSign Software provides a variety of Radio Control Packages to drive ICOM, Elecraft, and Ten-Tec's latest DSP based Transceivers and Receivers.
  [ Hits: 2046 | Votes: 9 | Rating: 4.56 ]
• Virtual Legacy Radio - Windows remote control for Yaesu or Icom. Displays the current transceiver settings frequency, mode, and others on the PC in an old-fashioned way that corresponds to the look of receivers in 70's. DX-Cluster Watch (DCW) is an application that automatically refreshes a web page with the dx-cluster content, parses spot lines from it, keeps a consolidated list and inserts the spots to VLR as frequency markers by OK1FIG
  [ Hits: 1847 | Votes: 6 | Rating: 10 ]

• A Coax Switch - An inexpensive coax switch. shows a proven inexpensive home-made antenna selection switch. If you question the use of a cheap slide switch and SO239 coax sockets, read on. Measurements in a physics lab showed there to be practically no reflection on HF and even on 70 cm the SWR was below 1.3 : 1
  [ Hits: 9681 | Votes: 8 | Rating: 7.5 ]

• Simple adjustable passive attenuator - This adjustable passive attenuator works as a "waveguide beyond cutoff." It can be constructed in about ten minutes from parts available locally.
  [ Hits: 1380 | Votes: 3 | Rating: 8.33 ]

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