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Most amateur digital modes are transmitted by inserting audio into the microphone input of a radio and using an analog scheme, such as amplitude modulation (AM), frequency modulation (FM), or single-sideband modulation (SSB). Amateur teleprinting over radio (AMTOR) D-STAR (Digital Data) a high speed (128 kbit/s), data-only mode.
Karaoke Joysound (カラオケJOYSOUND) is a karaoke service and online song library from Japanese karaoke service provider Xing. The Joysound service, which started on various karaoke computers, was adapted into a video game by Hudson Soft for Wii, licensing the Joysound online song library alongside Xing, who also helped co-develop the game with Hudson.
Zoom H2n sound recording test. The device can record in MS (mid-side), XY, MS+XY (two-channel) and MS+XY (four-channel) modes. If the 2.00 firmware update has been applied, it can also record in the 360-degree ambisonic format, along a horizontal plane.
With this technique is the angle between the microphone axes α = ± 55° = 110° and the distance between the cardioid microphones (microphone basis) is in this case a = 17 cm and gives a total recording angle of 96°. The choice between one and the other depends on the recording angle of the microphone system and not on the distance to and ...
This page was last edited on 4 January 2022, at 20:22 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
President HR2510A, a mobile 10-meter radio, with a Uniden microphone. Being a very wide band in HF terms, many different transmission modes can be found on 10 meters. Morse code and other narrowband modes are found toward the bottom portion of the band, SSB from 28.300 MHz up, and wideband modes ( AM and FM ) are found near the upper part of ...
A waterfall display depicting several PSK31 transmissions at around 14.07 MHz. The green lines indicate a station that is transmitting. PSK31 or "Phase Shift Keying, 31 Baud", also BPSK31 and QPSK31, is a popular computer-sound card-generated radioteletype mode, used primarily by amateur radio operators to conduct real-time keyboard-to-keyboard chat, most often using frequencies in the high ...
Two pins are used for the mono headphone signal and two pins for the unbalanced microphone signal. The 4-pin XLR connector is also commonly used on amateur radio microphones, but transferring unbalanced audio instead, and using the 4th pin (with the common ground) for a push-to-talk (PTT) circuit activated by a button on the microphone.