jack

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jack

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Antennas : Magnetic Loop
  • Magnetic Loop HF antenna - An homebrew HF Magnetic loop made with 2m length of 6mm diameter copper pipe formed into a near circle as the low loss inductor, a short length of coax as a capacitor,a short length of mains cable, again as a fixed tuned capacitor, a tunable 365pF air spaced capacitor, and a small Jackson C804 airspaced variable with a small 3-35pF trimmer in parallel
    [ Hits: 130 | Votes: 0 | Rating: 0 ]
Antennas : Wire
  • Field Day Inverted L - Inverted L antenna, even if not completely freestanding, it only requires one line to be lauched into a tree to support the end of the horizontal wire. This project is done with a 31-foot Jackite pole for a support and uses six 15-foot radials and one 33-foot radial.
    [ Hits: 87 | Votes: 0 | Rating: 0 ]
Radio Equipment : HF Transceivers : Icom IC-7300
  • IC-7300 Bluetooth Support - It is possible to add a very small Bluetooth transmitter to the 3.5mm headphone jack and then use a pair of Bluetooth headphones around the shack. In this article Author provides some tips on choosing the proper Bluetooth interface.
    [ Hits: 278 | Votes: 4 | Rating: 7 ]
Radio Equipment : HF Transceivers : Kenwood TS-590S
  • TS-590S audio noise - With high impedance earphones plugged into the audio jack on the Kenwood TS-590S or TS-590SG, you can hear a really annoying noise even with the AF volume set to zero. A simple quick-and-dirty solution is a resistor in series to the audio output.
    [ Hits: 130 | Votes: 1 | Rating: 9 ]
Radio Equipment : HF Transceivers : Yaesu FT-817
  • Yaesu FT-817 Add VOX via Data Jack - Adding VOX to the Data Jack on an FT-817. A method of modifying the FT-817 so that the data jack could be used with VOX on SSB etc thus eliminating the need for any external PTT switching.
    [ Hits: 155 | Votes: 0 | Rating: 0 ]
  • Yaesu FT-817 Audio Enhancement: Heathkit-inspired Homebrew Project - Inspired by Heathkit, author aimed to enhance his Yaesu FT-817 with audio and RF processing. Design goals included a compact enclosure, PCB simplicity, matching jacks, a visual meter, and a built-in signal generator. Despite challenges in finding a suitable compressor IC for a 5V DC mic jack, he chose the Analog Devices SSM2165/2166 series. Prototyping with a solderless breadboard, author planned a PCB layout for its versatile performance in communication use.
    [ Hits: 80 | Votes: 1 | Rating: 2 ]
Technical Reference : Ham Radio Go Kits
  • Yaesu FT-891 Go-Box for POTA - This article documents the author's latest go-box build for outdoor ham radio operations using a Yaesu FT-891 transceiver. The go-box is constructed from a plastic "50-cal ammo case" and contains various components, including the transceiver, LDG Z11 Pro autotuner, DIY Yaesu FH-2 remote control keypad, and an external battery. The author details the design considerations, the mounting of components inside the box, and addresses issues related to ventilation and cable management. The go-box is geared for CW operations and POTA activations, with further modifications planned for a microphone and DATA jack. This project allows for rugged, environmentally protected outdoor radio operations while maintaining portability.
    [ Hits: 188 | Votes: 0 | Rating: 0 ]
Technical Reference : Headsets and Speakers
  • Universal PC Headset Interface - This is a simple interface that will let you use your pc-multimedia headset on your ham rig. It’s a small plastic box with two sockets for the headset jacks.
    [ Hits: 139 | Votes: 1 | Rating: 10 ]
Technical Reference : Microphones
  • Alinco DR-605 Microphone Cable Repair - Repairing the RJ45 plug end of the mic cable of a Alinco DR-605 dual band mobile transceiver. Alinco microphones are well known for the cable jacket getting brittle and breaking
    [ Hits: 125 | Votes: 0 | Rating: 0 ]

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