2 meter receiver

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2 meter receiver

15 links

Internet and Radio : WebSDR

  • SR4DON Web Radio Receiver - OpenWebRX online radio receiver from Olsztyn Poland 10-15 meters bands, 50 MHz VHF UHF bands.
    [ Hits: 183 | Votes: 1 | Rating: 10 ]
  • WebSDR from Croatia - WebSDR receiver located near Krizevci, Croatia with 0-2 MHz, 60-80 meters band and 40-49 meters band
    [ Hits: 171 | Votes: 2 | Rating: 8.5 ]
Manufacturers : Radio Direction Finding
  • VHF Sniffer MK4 - Two-meter and aircraft band receiver specifically designed for RDF on foot, sold by Bryan Ackerly VK3YNG
    [ Hits: 1027 | Votes: 2 | Rating: 5.5 ]
Operating Modes : QRSS
  • 30 Meters receiver - A simple 30 meters receiver for low power QRSS Beacons and PSK31
    [ Hits: 1173 | Votes: 1 | Rating: 10 ]
Operating Modes : Radio Direction Finding
  • A low power 3.5MHz ARDF transmitter - This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.
    [ Hits: 2041 | Votes: 4 | Rating: 6.5 ]
Radio Equipment : Receivers : Icom IC-R75
  • ICOM IC-R75 Review by N9EWO - Icom IC-R75 tabletop HF communications receiver came onto the market back in 1999 and was taken out of production in late 2015. Frequency coverage is from 30 hz right to 60 MHz. This allows one to catch the 6 Meter amateur band as well.
    [ Hits: 44 | Votes: 0 | Rating: 0 ]
Software : Spectrum analyzers
  • Spectrogram - Spectrogram, a PC-based audio frequency spectrum analyzer available from Visualization Software, aids ham radio enthusiasts in aligning receivers like Elecraft K2. Versions are downloadable, with an intuitive interface and customizable parameters. Tutorials by experts like Tom Hammond and John Grebenkemper offer additional guidance.
    [ Hits: 22 | Votes: 0 | Rating: 0 ]
Technical Reference : Arduino
  • Arduino QRP Transceiver: DIY Success on HF Bands - This article introduces an Arduino-based QRP CW Transceiver designed for lower HF bands. The journey begins with the Wotduino, evolving from a keyer to a multi-mode beacon. The development includes a QRP transmitter and culminates in a receiver inspired by Roy Lewallen design. The transceiver, controlled through a control bus features a signal path, modulation, filtering, and adjustable frequency settings. Despite initial testing intentions, successful QSOs on 80 and 40 meters showcase its functional capabilities.
    [ Hits: 103 | Votes: 1 | Rating: 1 ]
Technical Reference : Filters
  • A 2 meter band-pass cavity using surplus Heliax - Cavity is often required at a busy site to not only prevent its receiver from being overloaded by off-frequency signals, but also be a good neighbour and prevent low-level signals from your transmitter from getting into other users receivers - not to mention the preventing of those other signal from getting back into your transmitter to generate spurious signals in its own right.
    [ Hits: 126 | Votes: 2 | Rating: 3 ]
Technical Reference : HF Radios
  • 160m 20w AM transmitter - Born as a companion transmitter for the Yaesu FRG-7 receiver has become a stand alone tramsmitter for 160 meters band
    [ Hits: 781 | Votes: 3 | 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 : QRP Projects : QRP CW Transceiver
  • QRP 20m Transmitter - The 1 watt 20 meter QRP transmitter with VXO. This is a nice QRP transmitter that can be used in combination of one of the simple receivers.
    [ Hits: 151 | Votes: 0 | Rating: 0 ]
Technical Reference : Receivers
  • Blocking Dynamic Range in Receivers - An explanation of the different procedures and definitions that are commonly used for blocking dynamic range (BDR) measurements. Dynamic range in general is the ratio between the weakest signal a system can handle and the strongest signal the same system can handle simultaneously without an operator switching attenuators or turning volume potentiometers
    [ Hits: 168 | Votes: 0 | Rating: 0 ]
Technical Reference : Receivers : Regenerative Receiver
  • WD5HOH Regenerative(Regen) Receiver - This web page describes a small, single tuned circuit regenerative receiver primarily for daylight reception in the 16, 19, 22 and 25 meter international shortwave broadcast bands.
    [ Hits: 9365 | Votes: 8 | Rating: 6.5 ]
Technical Reference : Transverters
  • 2m to 70cm Transverter Circuit - A 70cm / 432 MHz Transverter Project transverter circuit is an electronic device that converts a radio signal from the 2 meter to the 70 centimeter band and vice versa, allowing a single transmitter/receiver to be used for both bands. It consists of an IF stage, local oscillator, frequency multiplier, and amplifier. The circuit must be designed for minimal signal loss, noise and intermodulation distortion.
    [ Hits: 77 | Votes: 0 | Rating: 0 ]

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