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• Phasing Systems - Antennas, Standard Delay Line Systems, Crossfire Phasing or Hybrids
  [ Hits: 892 | Votes: 2 | Rating: 3 ]

• Baluns in antenna systems - Understanding Baluns. This article explores some simple antenna system configurations and the effect of key system components, connections and dimensions on feed line common mode current.
  [ Hits: 1106 | Votes: 2 | Rating: 2.5 ]

• Microvert antennas by DL7PE - Progress in Design of Extremely Short Transmitting Antennas Short and still efficient, how is that possible? By Juergen Schaefer, DL7PE author of the MicroVert antenna concept. The MicroVert introduced in this document is an extremely short and hardly visible short-wave antenna with outstanding radiation properties
  [ Hits: 1951 | Votes: 5 | Rating: 7.5 ]

• Current Through a 75m Bugcatcher Loading Coil - About experiments and measurements on loading coils using net standing wave current
  [ Hits: 464 | Votes: 0 | Rating: 0 ]

• End-fed Vertical and J-pole - Understanding Gain differences, j-pole and end-feed vertical antennas.
  [ Hits: 1561 | Votes: 1 | Rating: 1 ]

• Understanding Shortwave Antennas - Basic of shortwave antennas
  [ Hits: 1407 | Votes: 2 | Rating: 5 ]

• Understanding SWR by Example - Take the mystery and mystique out of standing wave ratio. QST Article by K5DVW
  [ Hits: 1709 | Votes: 6 | Rating: 7.57 ]

• Baldor Generators - Baldor Generators offers a complete line of portable, standby, prime power and peak-shaving generators in the industry from 3 - 2,000 kW in gasoline, LP, natural gas or diesel. Part of ABB group
  [ Hits: 571 | Votes: 1 | Rating: 1 ]

• Cross Country Wireless SDR Receiver - SDR Receiver a compact high performance HF software defined radio receiver designed to be used in fixed or portable stations. Version 2 of the receiver is now available. It now has an RF pre-amplifier using a power MOSFET and other revisions to improve it's performance both as a stand alone receiver and as an IF panadaptor with HF and VHF transceivers.
  [ Hits: 3039 | Votes: 64 | Rating: 8.41 ]

• adifdev - ADIF Developers - This is a discussion group for developers involved with the import or export of data formatted according to the ADIF standard for Amateur Radio Software.
  [ Hits: 387 | Votes: 0 | Rating: 0 ]

• Digital Radio Mondiale - About DRM, the DRM standard, emission types, upfrading your old HF RX to DRM
  [ Hits: 691 | Votes: 2 | Rating: 1 ]

• PSK-31 101 - Everything you need to know to understand and use PSK-31 by George Rothbart, KF6VSG Presentation to PACIFICON 2001
  [ Hits: 914 | Votes: 1 | Rating: 10 ]

• Inside The Drake TR-7 - The intent of this article is to help the semi-non-technical person understand what is inside the Drake TR-7(A) Transceiver, how it works, and discusses simple adjustment and modifications the end-user can perform
  [ Hits: 562 | Votes: 0 | Rating: 0 ]

• RF Speech Clipper for Yaesu MH-31 - RF Speech Clipper into Yaesu's MH-31 Standard Microphone
  [ Hits: 1864 | Votes: 4 | Rating: 10 ]

• CabStat - This spreadsheet is designed to perform a statistical analysis of the results of a competition among amateur dumps in the standard format Cabrillo.
  [ Hits: 657 | Votes: 2 | Rating: 10 ]

• ADIF2CABR - Freeware Adif to cabrillo converter by SP7DQR. Windows ADIF 2 Cabrillo log format converter application let you translate you contest log book from the standard ADIF format to the Cabrillo format.
  [ Hits: 9411 | Votes: 57 | Rating: 6.7 ]

• Understanding Linear Amplifiers - Understanding Solid State Linear Amplifiers
  [ Hits: 757 | Votes: 4 | Rating: 7.75 ]

• Anderson Power Pole Connectors - Anderson Powerpole connectors are becoming the standard for Raynet ARES and RACES groups as well as many Ham radio shacks round the world. This recourses page will give you a guide to Anderson Powerpole connectors in the radio shack.
  [ Hits: 513 | Votes: 18 | Rating: 9.23 ]

• The BBRC Frequency Counter - The Burnham Beaches Radio Club frequency counter is a PIC micro controller based frequency counter with LCD readout. It can be used stand alone or the in built offsets allow integration into a receiver
  [ Hits: 857 | Votes: 0 | Rating: 0 ]

• Vocal Keyer - The Vocal Keyer is a stand-alone voice keyer for your radio. It can be built with two 16-second or four 10-second recordable messages by KG4JJH
  [ Hits: 677 | Votes: 0 | Rating: 0 ]

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