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signal

478 links - and 11 categories

Antennas : 160M
  • The 160M No Excuses Homebrew Vertical - This antenna is designed for stations having a difficult time putting a decent signal on 160M from small or CC&R d lots. It is a 24.5 ft. vertical antenna, made from three 10 ft. PVC sections bolted together, and half wavelength of antenna wire helically wound around the PVC sections.
    [ Hits: 404 | Votes: 0 | Rating: 0 ]
Manufacturers : Antenna Analyzers
  • HG7AN Antenna Analyzer - Antenna Analyzer plus 500 is a multifunctional measuring instrument, very useful for amateur radio activity. Its size allows you to easily take it for relocation as well. Frequency range: 100KHz - 500MHz. Access directly via WiFi. Includes a dual-channel signal generator
    [ Hits: 264 | Votes: 1 | Rating: 10 ]
Manufacturers : QRP Kits
  • HF SIGNALS - Makers of QRP HF General Coverage Transceivers you can build. The Home of BITX transceivers, uBITX General Coverage Receiver-Transmitter. A general coverage, 10 watts HF SSB/CW transceiver kit with features you NEED for operating ease, convenience and versatility. It works from 3 MHz to 30 MHz, with up to 10 watts on SSB and CW, with a very sensitive receiver.
    [ Hits: 482 | Votes: 6 | Rating: 9.5 ]
Manufacturers : Test Equipment
  • SWR ANTENNA ANALYZER + WSPR TX - Available worldwide can be used as Arduino Shield or plug it in to you PC , or with a bluetooth adapter connect to Android. With a highly optimized software, KAI200 brings you: a. Antenna analyzer form 1 up to 200 Mhz; b. WSPR transmiter (set up by serial terminal); c. Square Wave Signal generator KAI200 is all you need for your radio whatever it is Yaesu, Icom, Kenwood or Drake and DIY projects.
    [ Hits: 321 | Votes: 8 | Rating: 9.62 ]
Manufacturers : Test Equipment : Spectrum Analyzers
  • Saluki Technology Inc. - Saluki manufacturer of Spectrum Analyzer, Handheld Spectrum Analyzer, Signal Analyzer, Cable and antenna analyzer, Network Analyzer|RF Signal Generator, Cable Antenna Analyzer
    [ Hits: 135 | Votes: 0 | Rating: 0 ]
Operating Aids : History
  • The Transatlantic Tests - From 1921 to 1924, radio amateurs experimented with transmitting across the Atlantic. Everyday Engineering magazine organized the first sending test with English amateurs prepared to listen for signals from the US
    [ Hits: 343 | Votes: 0 | Rating: 0 ]
Operating Modes : EME Operating Modes : FT8
  • FT8 Operating Guide - Weak signal HF DXing - An excellent guide to operating FT8 mode available in English, German and Czech that cover several aspects of the FT8 operations. Includes and exaustive guide to how configure FT8 software, how to conducto a QSO and how to operate DXPeditions in FT8 F/H mode. Covers aspects of FT4 contesting operations and interfacing with logging programs
    [ Hits: 394 | Votes: 2 | Rating: 4 ]
Radio Equipment : HF Transceivers : Icom IC-7610
  • ICOM IC-7610 review by PD9Z - PD9Z reviews the ICOM new IC-7610 with a list of surprising features he has found on this transceiver. Signal reception performances are one the mosto valuable features found on this high-end RTX by ICOM. Along to his review you can access several other resources related to the IC-7610 including manuals, tips and tricks, videos, and configuration settings to be implemented in order to be used with Heil Sound headsets.
    [ Hits: 227 | Votes: 2 | Rating: 9 ]
Shopping and Services : Regional : USA
  • Signal Stuff - Amateur radio parts and accessories online shop, born to support hamstudy.org and examtools.org offer super elastic signa stic antennas, sma connectors and other small parts.
    [ Hits: 134 | Votes: 0 | Rating: 0 ]
Software : Macintosh
  • JTDX - JTDX (JT Digital Modes for Linux, MacOS and Windows) is a free, open-source software for amateur radio operators for the reception and transmission of digital modes, including JT65, JT9, and FT8, among others. JTDX is designed to provide improved decoding of weak signals and better usability compared to other digital mode software like WSJT-X. It also has features like a real-time spectrum display, logging, and decoded message storage and retrieval. Download JTDX from the official site.
    [ Hits: 3259 | Votes: 6 | Rating: 8.17 ]
Software : Weak Signal
  • 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: 1322 | Votes: 6 | Rating: 8.5 ]
Technical Reference : Arduino
  • The WB0RIO 28 Mhz Arduino Beacon - This project involves the construction of a 5 Watt Morse code beacon transmitter that operates in the 28.200 to 28.300 section of the 10 Meter Amateur Radio band. The beacon controller uses an Arduino Uno microprocessor board to produce the three signals that control the transmitter.
    [ Hits: 622 | Votes: 0 | Rating: 0 ]
Technical Reference : Coax Cables and Connectors
  • Velocity Factor of Coax Cables - Undertanding the velocity factor in coax cable feed lines. Meaning of the veolcity factor index related to the RF speed of a signal inside the coax cable.
    [ Hits: 167 | Votes: 2 | Rating: 10 ]
Technical Reference : Radio Direction Finding
  • RDF with Raspberry PI and RTL-SDR - The RasHAWK team has used a Raspberry Pi as the basis for a networked RF sensor capable of supporting spectrum monitoring, signal intercept and direction finding (DF) operations.
    [ Hits: 880 | Votes: 3 | Rating: 9 ]
Technical Reference : Raspberry Pi
  • The Raspberry OscilloPhone - Use your Smartphone as an Oscilloscope to visialize signals from 150 Hz to 15kHz and as a Signal Generator to generate sinusoidal, square and triangular signals up to 15kHz
    [ Hits: 380 | Votes: 0 | Rating: 0 ]
  • Guide to decode SSTV with RaspberryPi and RTL-SDR - A tutorial on how to setup a receiver capable to decode SSTV signals with a small RaspberryPi version 2 and a RTL-SDR dongle. The author explains how to install the needed software to interface the RTL-SDR and a step by step guide to install the QSSTV software used to decode the signals.
    [ Hits: 329 | Votes: 1 | Rating: 1 ]
Technical Reference : Receiver Front-End Protector
  • A Transceiver Front-End Protector - A transceiver front-end protector in high signal level environments. An homemade RF limiter to protect your receiver front-end from high radio frequency.
    [ Hits: 656 | Votes: 0 | Rating: 0 ]
Technical Reference : Repeater
  • Cross Band Repeaters - Crossband Repeating is a process where a Ham transmits one signal on one band (typically UHF), and it is received by another radio with a better antenna/power installation, and re-transmitted (typically on VHF) to another radio system, or a repeater. Everyday examples of cross-band repeaters are repeater receive sites that hear the input signals on 2m and retransmit those signals on a frequency higher than 220 MHz.
    [ Hits: 206 | Votes: 0 | Rating: 0 ]

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