rf signal

107 links - and 2 categories

Signal Identification Guide - This wiki is intended to help identify radio signals through example sounds and waterfall images. Most signals are received and recorded using a software defined radio
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RFzero - The RFzero is a multi function signal platform developed for radio amateurs who wants to extend the Arduino skills in combination with RF. The RFzero board is largely compatible with the Arduino Zero and Arduino M0 boards, however, it has been carefully designed for flexible use in RF applications and with attention to the frequency spectrum and stability performance.
[ Hits: 431 | Votes: 6 | Rating: 9.83 ]

Amphenol RF - Amphenol RF is a leading manufacturer of coaxial connectors for use in radio frequency, microwave, and data transmission system applications. Headquartered in Danbury, Connecticut, USA, Amphenol RF has global sales, marketing and manufacturing locations in North America, Asia and Europe. Standard products include RF connectors, coaxial adapters and RF cable assemblies. Custom engineered products include multi-port ganged interconnect, blindmate and hybrid mixed-signal solutions.
[ Hits: 176 | Votes: 0 | Rating: 0 ]

Keysight (Agilent) Signal Generator - Keysight offers numerous baseband, RF, and microwave signal generator (signal source) products. From basic to advanced, baseband to 67 GHz, Keysight signal generators are capable of frequency extensions to 500 GHz with millimeter-wave source modules.
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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
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Domino DF mode - DOMINO DF is a sensitive mode which, due to its incremental frequency keying and thanks to its interleaved multiple tones sets, is easy to tune and is few sensitive to interference and ionospheric effects. Domino faeture a great signal to noise ratio.
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Soundcard Levels for Digital Modes - This article aims to help promote the proper configuration for having a clean signal on the waterfall to avoid interference to other users and also to vastly increase the effectiveness of your signal.
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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
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Radio Signal Path Loss - Article about the essentials of radio signal path loss, its causes and prediction, and its use in radio coverage and wireless survey tools
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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 ]

2.3GHz to 432MHz RX converter for FT-817 - A very small receiver converter that can be plugged to the backside of the battery powered portable transceiver FT817 from Yaesu. A high performance receiver for 2.3GHz amateur radio signal
[ Hits: 223 | Votes: 3 | Rating: 1.67 ]

JMSK - JMSK is a software modem that implements a good coherent MSK demodulator that has performance comparable to BPSK. Signals are demodulated from the soundcard. Modulated signals can be routed through the soundcard or to an external device such as a DDS module for direct RF modulation. The advantage of MSK compared to PSK is that non linear amplifiers can be used and has a faster roll off. It is an open source cross-platform program written in C++ Qt.
[ Hits: 372 | Votes: 2 | Rating: 5.5 ]

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.
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About Key Clicks - The Necessary Bandwidth for CW Signals By George Grammer W1DF
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Introduction to RF & Wireless Communications Systems - This tutorial covers an introduction to RF, wireless, and high-frequency signals and systems, includes explaination of what is RF, why operate at Higher Frequencies, Frequency Shifting through Frequency Mixing.
[ Hits: 282 | Votes: 1 | Rating: 6 ]

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.
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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: 333 | Votes: 1 | Rating: 1 ]

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.
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RF Sweep Generator - Notes about generating RF sweep signals on the Arduino for filter testing, a digital version of the old Wobbulator concept
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DIY RF Sweep Generator - A home made sweeping signal generator up to 2 GHz
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