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Software License Operating Systems Features Amateur Contact Log by N3FJP Proprietary Windows Logging, Transceiver control, Callbook lookup, QSL handling (Hardcopy / LoTW / eQSL / Club Log), Awards, DX Spots, Digital Modes
Download as PDF; Printable version; In other projects ... Pages in category "Amateur radio software for Windows" The following 10 pages are in this category, out of ...
It is a protocol, implemented in a computer program, used for weak-signal radio communication between amateur radio operators. The protocol was designed, and a program written initially, by Joe Taylor, K1JT. The software code is now open source and is developed by a small team.
The CB Radio Service spectrum is divided into 40 numbered radio frequency channels from 26.965 to 27.405 MHz. Channel spacing is 10 kHz between channel centers with exceptions where CBRS channels are adjacent to Radio Control Radio Service. The initial channel allocations had a gap equal to two channel spaces between channels 22 and 23.
The required signal-to-noise ratio in a 2500 Hz bandwidth is −21 dB, so the corresponding E b /N 0 is 10 log 10 (2500/6.09) = 26.1 dB greater, or −21 dB + 26.1 = 5.1 dB. [ 1 ] Although FT8 transmissions occur within fixed time windows, the software can cope with discrepancies between sending and receiving systems of up to a second or two.
Four dual channel, 16 bit, 370 MSPS ADCs; Two quad channel, 16 bit, 2500 MSPS DACs; 4/4 2x 10Gbit/s SFP+, Ethernet Yes Yes Yes Cross Country Wireless SDR receiver v. 3 [34] Pre-built 472 – 479 kHz, 7.0–7.3 MHz/10.10–10.15 MHz, and 14.00–14.35 MHz ext No External ADC required (I/Q output) 1/1 Crystal controlled two channels Yes Yes Yes ...
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Radio channels are 9 kHz wide, with channel spacing of 12.5 kHz. The gross data rate is 9,600 bits per second, with the actual data transfer at 3,200. The transmission, called stream , is divided into 40-millisecond long frames , each prepended with a 16-bit long synchronization word.