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What is PSK31 - N3UJJ
http://n3ujj.com/manuals/What%20is%20PSK31.pdf
The PSK31 receiver overcomes this by filtering the receive signal, or by what amounts to the same thing, shaping the envelope of the received bit. The shape is more complex than the cosine shape used in the transmitter: if we used a cosine in the receiver we end up with some signal from one received bit "spreading" into the next bit, an inevitable
PSK31 Setup and Operation | bpsk31.com
https://bpsk31.com/operation/
PSK31 software will output audio to the PC's soundcard to send a transmission, however a mechanism must exits for keying the radio to transmit an RF signal, as well as link the audio tone to the radio's audio input. Therefore some form of soundcard interface may be used. It might simply be an audio cable with a radio with VOX capabilities, or ...
A UNIVERSAL DIRECT CONVERSION RECEIVER FOR PSK-31
https://www.nutsvolts.com/uploads/magazine_downloads/A_Universal_Direct_Conversion_Receiver_For_PSK-31.pdf
The Receiver Figure 1presents the schematic for the DC receiver. Direct conversion receivers function by directly converting the desired RF signal to an audio frequency. This approach results in a relatively sensitive receiver that requires a minimum number of components. Again referring to Figure 1, capacitors C1, C2, along with
ASEE PEER - A Psk31 Audio Beacon Project Provides A ...
https://peer.asee.org/a-psk31-audio-beacon-project-provides-a-laboratory-capstone-design-experience-in-digital-communications
The RF data-link serial receiver can be located up to 500 feet from the transmitter and interfaces to the PSK31 Audio Beacon via an RS232 interface. The Audio Beacon features PSK31 encoding and audio waveform generation using a single-chip SX28 RISC microcontroller operating at 50 MHz.
PSK31 - G4ILO
http://www.g4ilo.com/psk31.html
Most PSK31 operators use PC software that generates and decodes the audio PSK signal using the computer sound card. The output from the radio receiver is fed into the sound card's line input socket and the software decodes it and displays the text on the screen.
A alternative PSK31 transceiver
http://www.waarsenburg.com/index.php/the-news/57-a-alternative-psk31-transceiver
A computer was connected to the audio input, and a dummyload was connected to the transceiver´s output. It did produce a rumble in the receiver, but nothing readable on the screen. Checking with the scope showed that the squarer did not work, and hence the phase flipflop produced no output either.
Low Power RTTY and PSK31 Decoder for Ham Radio …
https://trace.tennessee.edu/cgi/viewcontent.cgi?article=2383&context=utk_chanhonoproj
RTTY and PSK31 decoders in low power ham radio applications. The decoders within are based on a modified time-delay tanlock loop (TDTL) and code and schematics are provided for operation on a Microchip dsPIC. Performance-wise, in the presence of noise the PSK31 decoder makes it useless and the RTTY decoder is only
Micro-PC and Virtual Audio Cable use for PSK31
https://www.remoterig.com/forum/index.php?topic=1483.0
Re: Micro-PC and Virtual Audio Cable use for PSK31 « Reply #14 on: 2013-05-24, 15:27:12 » I think it would require an additional item in the driver, to select the Microbit speaker as a RECORDING device, maybe naming it Microbit 1274A PSK RX, and to select the Microbit Microphone as a PLAYBACK device, maybe naming it Microbit 1274A PSK TX.
NUE-PSK Digital Modem
https://nue-psk.com/manuals/NUE-PSK%20Operating%20Manual%20v5.pdf
fixed level audio from the receiver (independent of the volume control on the rig), and a line-level (approx 100mv rms) audio input to the transmitter. On the Yaesu FT-817/857/897 this connector is a 6-pin mini-DIN. On many Kenwood HF rigs there are 6 …
Bluetooth® Audio and Voice Solutions | Microchip …
https://www.microchip.com/en-us/products/wireless-connectivity/bluetooth-low-energy/bluetooth-audio-and-voice-solutions
Markets and Applications. From two-way voice communication to uninterrupted streaming music, our wide range of solutions service a variety of voice recognition and Bluetooth audio applications. When seamless, reliable and high-quality audio is the foundation of your product, don’t compromise for less. No results found.
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