receiver

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receiver

491 links - and 13 categories

Antique Radios : Repair and Restoration
  • A Collins 75A-4 Restoration - This page details the restoration of an early production Collins 75A-4 Amateur Band Receiver that had previously been vandalized.
    [ Hits: 168 | Votes: 3 | Rating: 9.67 ]
Manufacturers : Software Defined Radio
  • Silphase Technologies - Amateur radio SDR Receiver and Transceiver manufacturer , makers of the Silphase R1 an innovative HF receiver with high performance real-time spectrum scope.
    [ Hits: 131 | Votes: 0 | Rating: 0 ]
  • STAMPFL - Stampfl ham electronics produces SDR Receiver kits and Morse Keys in small batches and in the usual Swiss Quality
    [ Hits: 63 | Votes: 0 | Rating: 0 ]
Operating Modes : Morse code : Learning Morse Code
  • Recognition of CW signs at different listening levels and frequencies - The recognition of telegraphy masked by noise at 40 and 80 signs/min telegraphy speed was studied in 10 normal-hearing subjects at different sound pressure levels (25-85 dB SPL in steps of 5 dB) as well as at different test frequencies (2000, 1000, 800, 630, 500 and 250 Hz). The ability to recognize the signs varied with varying SPL. Recognition for most of the subjects was best at an SPL close to 70 dB. All subjects improved their recognition as the frequency was lowered to 500 Hz, some even at 250 Hz. These facts should be taken into consideration when training telegraphy operators as well as in the construction of radio receivers to permit listening at low frequencies. Furthermore, the critical ratio was calculated at the different test frequencies.
    [ Hits: 81 | Votes: 1 | Rating: 7 ]
Radio Equipment : HF Transceivers : Elecraft K3
  • Transforming the Elecraft K3 into a SDR with K3 - This article will explain a few of the ways author use an external SDR and Linrad to enhance his K3 experience. Linrad is one of many available SDR receiver programs. The same could be done with any radio that lets you access its IF frequency output. Article from NCJ Nov Dec 2019
    [ Hits: 336 | Votes: 0 | Rating: 0 ]
Radio Equipment : HF Transceivers : ICOM IC-756
  • Icom IC-756PROIII - Icom UK Discontinued products - A page dedicated tho the IC-756PROIII transceiver. This radio, discontinued, incorporates many of the features that made its predecessors so successful. However, the integration of the latest technology employed in the IC-7800 such as receiver technology, +30dBm class IP3, miniscope makes this new rig the very pinnacle of the IC-756PRO series.
    [ Hits: 161 | Votes: 1 | Rating: 9 ]
Radio Equipment : HF Transceivers : Yaesu FT-817
  • 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 ]
Radio Equipment : Receivers
  • LAN-IQ SDR - Stand Alone Software Defined Radio, direct sampling receiver from 30 kHz to 1700.00MHz continuous frequency range, LAN interface for remote access
    [ Hits: 258 | Votes: 1 | Rating: 8 ]
Radio Equipment : Receivers : Icom IC-R7100
  • Icom IC-R7100 Clicking Noise - How to solve the problems with the ICOM IC R7100 receiver that every time the squelch opens or closes, it produces a clicking noise.
    [ Hits: 158 | Votes: 0 | Rating: 0 ]
Software : Radio Programming
  • Icom IC-R2 Commander - Programming software for the Icom IC-R2 handheld receiver and scanner.
    [ Hits: 137 | Votes: 0 | Rating: 0 ]
Software : Time
  • BktTimeSync - BktTimeSync synchronizes the PC time using an internet time server (NTP server) or a GPS receiver connected to USB, serial port or Bluetooth. Great for use with digital modes like FT8, JT65, JT9, JS8Call and others. For the operation of this program requires an active internet connection or a GPS receiver. This program works on all versions of Windows 32 or 64 bit
    [ Hits: 1665 | Votes: 3 | Rating: 6.67 ]
  • GPS time - GPSTime is a small freeware applet that corrects your PC clock using GPS. GPSTime reads the serial data coming out of your GPS receiver and decodes the $GPRMC messages to determine the precise UTC time. Works on Windows Vista/7/8/10 with PC with serial ports.
    [ Hits: 636 | Votes: 0 | Rating: 0 ]
  • GPS2Time  updated - A means of sync-ing your computer clock using a GPS Receiver. GPS2Time is another GPS network time synchronization software application for Window 7 and higher. Freeware.
    [ Hits: 1045 | Votes: 3 | Rating: 10 ]
Technical Reference : Grounding
  • Grounding HF Transceiver using Coax Cable - Improper grounding or earthing system can cause several unwanted RF interferences (RFI) to television sets, broadcast receivers, hi-fi sets and telephone sets. In this Article the author explain how to setup a proper radio shack grounding using coaxial cable and ceramic disc capacitor
    [ Hits: 1283 | Votes: 4 | Rating: 7.75 ]
Technical Reference : HF Radios
  • Build A Single-Sideband Transceiver From Scratch - How to build a complete Single-Sideband amateur radio transceiver from scratch. Article published on hackaday dot com includes an introduction to radio architectures, ssb receivers and tramsitter
    [ Hits: 301 | Votes: 1 | Rating: 10 ]
  • Homebrew a High Performance SSB RTX for 14 MHz - This article describes the construction of a high performance transmitter and receiver for SSB (voice) communication covering the 14MHz (20 meters) high frequency amateur radio band with output range 15 to 20 watts and a top audio sound quality both on transmit and receive.
    [ Hits: 345 | Votes: 5 | Rating: 7.8 ]
Technical Reference : Radio Frequency Interference
  • How to locate RFI - I have RFI, now what– Locating it. This article is the first of a three parts article, that covers the problem of locating the RFI source. Author make use of an SDR receiver to locate RFI emissions. Ai interesting RFI location process diagrams helps on following the various phases, permitting the discovery of almost 75% of the RFI issues.
    [ Hits: 194 | Votes: 2 | Rating: 10 ]
Technical Reference : Raspberry Pi
  • 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 ]
  • Raspberry Pi and Automatic NOAA Satellite Reception - How to receive automatically NOAA wather satellite images with a Raspberry Pi and a RTL SDR. This project requires a Raspberry Pi 3 Model B a common NooElec SDR Dongle and a QFH Antenna in the attic. Article explains how to setup and configure software but no instructions on antenna.
    [ Hits: 518 | Votes: 4 | Rating: 4.75 ]
Technical Reference : Receivers
  • A 3.5MHz Receiver for SSB and CW - Homemade receiver for 80 meters band. The receiver works very well (in fact better than some of its successors), especially the AGC makes listening to 80m QSOs a real pleasure. Sensitivity is not cutting-edge, but on a full-size short-wave antenna it is by fare sensitive enough.
    [ Hits: 248 | Votes: 2 | Rating: 6.5 ]

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