Search results
Results from the WOW.Com Content Network
The system was mains frequency dependent, so a 50 Hz and 60 Hz versions were available (50 Hz in the UK, 60 Hz in the US and Canada). The Zero 1 system supplied the track with a 18 V sinusoidal alternating current at the local mains frequency with a 32-bit control word replacing every third cycle.
MacLoggerDX is a full-featured amateur radio contact logger for macOS with Transceiver control, Rotor control, Callbook lookup, QSL handling (Hardcopy / LoTW / eQSL / Club Log), DX Cluster and spotting, and basic contesting support. It also works with WSJT-X to control the transceiver while making digital contacts, etc. HamLogBook by K6REA
WSJT, the predecessor to WSJT-X, was originally released in 2001 and has undergone several major revisions. Communication modes have been both added and removed from the software over the course of its development. Since 2005, the software has been released as open source software under the GNU General Public License. This licensing change ...
Headphones by beyerdynamic: DT 880 PRO, DT 770 M, DT 770, DT 990 PRO. Beyerdynamic GmbH & Co. KG (stylized as beyerdynamic) is a German manufacturer of microphones, headphones, wireless audio systems, and conference systems. Headquartered in Heilbronn, Germany, Beyerdynamic has been family-owned since its founding in 1924. [1]
2/1 Using HDSDR software Relies on a computing asset with sound device to process I and Q input and output Yes, HDSDR, PowerSDR Yes, Quisk, Linrad, GNU Radio Yes, various software Hunter SDR [61] Kit 2.5 – 30 MHz (1 – 30 MHz typ.) ext External ADC required (I/Q output) ? USB Yes No No Icom IC-7610 [62] Pre-built RX: 0.030 - 60 MHz.
Fldigi (short for Fast light digital) [4] is a free and open-source program which allows an ordinary computer's sound card to be used as a simple two-way data modem.The software is mostly used by amateur radio operators who connect the microphone and headphone connections of an amateur radio SSB or FM transceiver to the computer's headphone and microphone connections, respectively.
Basic automatic frequency control in a radio receiver. У = RF amplifier stages, Д = frequency discriminator stage In radio equipment, Automatic Frequency Control ( AFC ), also called Automatic Fine Tuning ( AFT ), is a method or circuit to automatically keep a resonant circuit tuned to the frequency of an incoming radio signal .
Magnitude response of a low pass filter with 6 dB per octave or 20 dB per decade roll-off. Measuring the frequency response typically involves exciting the system with an input signal and measuring the resulting output signal, calculating the frequency spectra of the two signals (for example, using the fast Fourier transform for discrete signals), and comparing the spectra to isolate the ...