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mode s

788 links - and 14 categories

Antennas : Feed Lines
  • SWR: Maximum allowable VSWR - VSWR (voltage-standing-wave-ratio) represents the degree with which an antenna is "matched" to the system impedance. Most modern antennas do not require any tuning for optimum performance. VSWR is one of the easiest parameters to measure and VSWR meters are becoming very popular antenna installation tools
    [ Hits: 1237 | Votes: 3 | Rating: 3.33 ]
Antennas : Magnetic Loop
  • Magnetic loop by F5SWN - The magnetic loop, thus named by the use of the magnetic component of the electromagnetic field, is a parallel circuit LC. In this article a sample project to home made a custom antenna. The circular form is often met on the commercial models but this antenna can be hexagonal, octagonal or square.
    [ Hits: 253 | Votes: 4 | Rating: 5.25 ]
Manufacturers : Digital and Packet Radio
  • RACOM - Radio modems - RACOM is a Czech company specialized in design and production of radio modems and other devices for wireless data networks for radio channels from 140 to 900 MHz. RACOM radio data networks are suitable for data transfer in telemetry & SCADA applications, transaction networks, security systems, IP networks and firts of all mobile tracking and fleet management.
    [ Hits: 920 | Votes: 2 | Rating: 9 ]
Operating Modes : Longwave
  • Frequency Calibration for Weak Signal Work - Accurate calibration of your receiver and sound card is necessary for good results with the weak signal modes in use at LF. Modern receivers with master oscillators that are synthesized to provide all conversion frequencies greatly simplify the process. This article describes a method of making the necessary measurements and adjustments to an ICOM R75 receiver and a sound card, using the ARGO software
    [ Hits: 872 | Votes: 1 | Rating: 7 ]
Operating Modes : Morse code
  • Iambic mode A and B - Document explaning the differences between Iambic mode A and B
    [ Hits: 2635 | Votes: 1 | Rating: 5 ]
Operating Modes : Packet Radio
  • WA4DSY 56KB RF Modem - This is a prototype of the WA4DSY 56KB RF modem. It is intended for use on amateur packet radio networks. The modem generates RF in the 28 to 30 mhz range and requires and linear transverter to convert the signal to a UHF or microwave ham band
    [ Hits: 1083 | Votes: 0 | Rating: 0 ]
Operating Modes : Satellites
  • Amsat DSP Satellite Transceiver Project - The DSP Satellite Transceiver is a conceptual transceiver designed as a dedicated unit for amateur satellite operators. The initial concept was brought about by the lack of satellite functionality on modern amateur radio transceivers, and the specialized requirements of the ham radio operator who utilizes OSCAR amateur satellites.
    [ Hits: 3616 | Votes: 6 | Rating: 6.67 ]
Radio Equipment : HF Transceivers : Icom IC-706 Radio Equipment : HF Transceivers : Icom IC-718 Radio Equipment : HF Transceivers : Kenwood TS-2000 Radio Equipment : HF Transceivers : Yaesu FT-1000MP Radio Equipment : VHF-UHF Handhelds : Yaesu VX-150
  • Yaesu VX-150 Mods - modifications collected about Yaesu VX-150 by mods.dk
    [ Hits: 2946 | Votes: 0 | Rating: 0 ]
Radio Equipment : VHF-UHF Handhelds : Yaesu VX-5R
  • Modifications for the Yaesu VX-5R - VX-5R Loose antenna cure, Vx-5r Free Band, VX 5 R modification for German, VX-5R expanded frequency mod, VX-5R MARS/CAP & freeband mod
    [ Hits: 3434 | Votes: 2 | Rating: 4 ]
  • Yaesu VX5-R mods - Mods and articles collected by mods.dk
    [ Hits: 6351 | Votes: 4 | Rating: 6.5 ]
Radio Equipment : VHF-UHF Mobile : ICOM IC-2100H
  • IC-2100H Mods - Modifications for Icom IC-2100H by mods.dk
    [ Hits: 3910 | Votes: 6 | Rating: 5.83 ]
Radio Equipment : VHF-UHF Mobile : ICOM IC-2720H Shopping and Services : Kits and Components
  • Fox Delta Amateur Radio Projects & Kits by VU2FD - Amateur Radio Projects & Kits for homebrewers, includes DDS,sound card interface,programmers, hamcom, frequency counter, RF Power Meter, modems and more.
    [ Hits: 1299 | Votes: 4 | Rating: 10 ]
Software : APRS
  • APRS-Beacon - The purpose of the APRS-Beacon is to provide simple APRS-compatible position beacons for up to three Objects. It is designed to 'stand alone' and does not monitor other traffic on the frequency. It can use a single-port TNC (in 'native' mode), a single- or dual-port TNC in Kiss mode or the AGW Packet Engine in order to transmit on up to four radio ports.(When running with AGWPE, APRS-Beacon will also work with Windows 2000)
    [ Hits: 3421 | Votes: 7 | Rating: 2.57 ]

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