transmission 1

transmission 1

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

• Practical Guanella 1:1 balun - This article proposes a lossy transmission line model of a practical Guanella 1:1 balun that is effective for all frequencies within and immediately adjacent to the pass band
  [ Hits: 3618 | Votes: 3 | Rating: 3.33 ]

• 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 ]

• WD2XGJ Experimental Station - Experimental Longwave Transmissions from Tower Hill wayland Massachusetts Operator Name Warren, Ham Call K2ORS, Frequency: 137.7796 KHz
  [ Hits: 595 | Votes: 0 | Rating: 0 ]

• Understanding the basics of SSB transmission - Fundamentals of operating on single sideband
  [ Hits: 497 | Votes: 2 | Rating: 3 ]

• The very first DX - December 12th, 1901 is certainly a date with a historical relevance in radio transmissions. At 04.30 GMT of that day, Guglielmo Marconi succeeds in sending the first transatlantic wireless communication.
  [ Hits: 309 | Votes: 2 | Rating: 9 ]

• Tiny Track I - Tiny Track-I is a simple unit offering the transmission of your position-data (as mobile etc) in APRS , just by using a VHF and a GPS.
  [ Hits: 298 | Votes: 0 | Rating: 0 ]

• Low Frequency Transmission Modes - Article by W1TAG on operating modes used on low-banding. The 2200 meter band (135.7 - 137.8 kHz) is only 2.1 kHz wide, so voice work on SSB or AM is out. Find out the best modes on LF
  [ Hits: 438 | Votes: 0 | Rating: 0 ]

• W1AW Code Practice Files - W1AW code practice transmissions for the dates and speeds indicated. The files are in MP3 format
  [ Hits: 1316 | Votes: 7 | Rating: 6.14 ]

• Making the Most of your PSK31 Signal - Adjusting audio output of your soundcard to obtain a perfect PSK signal from your transmission. A project to help you tuning your PSK31 emission.
  [ Hits: 1451 | Votes: 1 | Rating: 5 ]

• Mod for Acom 1000 amplifier - The problem originates by improper TXOUT-to-RF timing (RF transmission exists still after a TX-EN prohibition), combined by too long decay of their CW pulses.
  [ Hits: 511 | Votes: 0 | Rating: 0 ]

• Decoding West Germany Numbers - A simplified explanation of decoding West German numbers messages transmissions without a computer.
  [ Hits: 394 | Votes: 0 | Rating: 0 ]

• CW Trainer - Mose Trainer by G4FON is a free windows morse code training program developed using the Koch method. Sends words simulating real morse code transmission, with QSB and QRM, allow change speed tone and many other settings. Download the kochmorsetrainer_install file and start learning Morse Code.
  [ Hits: 4460 | Votes: 9 | Rating: 9.11 ]

• WSPR - WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions. Stations with internet access can automatically upload their reception reports to a central db
  [ Hits: 1730 | Votes: 3 | Rating: 9.33 ]

• 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 ]

• MSHV - MSHV is a free windows and linux multimode software that support weak signal digital modes like MSK144 MSKMS JTMS FSK441 FSK315 ISCAT JT6M FT8 FT4 JT65 PI4 amateur radio modes. MSHV features several interesting features including the Multi Answering Auto Seq Protocol, allowing multiple signal transmissions to be used during dx peditions.
  [ Hits: 1328 | Votes: 6 | Rating: 8.5 ]

• 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 ]

• A 25 Watt Dummy Load - Dummy load described here can be used for up to 35 watts for short transmissions, and up to 25 watts for longer periods.
  [ Hits: 4875 | Votes: 5 | Rating: 2.8 ]

• Ham Radio TVI in the 21st Century - Ham radio transmissions can interfere with television reception. This is called television interference, or ham radio TVI. Consumer adoption of cable television has significantly reduced ham radio TVI. But the introduction of IPTV, or television over phone systems, has brought ham radio TVI back, often with a vengeance. Here's why
  [ Hits: 322 | Votes: 0 | Rating: 0 ]

• A Code of Practice for Radio and Television Interference - This is a guide for radio amateurs whose operations come to the attention of neighbours through disturbance to reception of sound broadcast and television transmissions
  [ Hits: 189 | Votes: 0 | Rating: 0 ]

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