, . , .
: . 145.350
: [1]   
   
: FT8  ( 339 )
RA3QRD
Evgeniy


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RA3QRD


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« : 12 2018, 10:40:37 »

FT8
 2 2017.
FT8 (Franke-Taylor design, 8-FSK modulation) WSJT-X (K9AN) (K1JT) 2017 . FT8 WSJT-X

FT8 (Es), , , QSO.

FT8
/: 15
: 75 + 12- CRC
FEC: LDPC (174,87)
: 8-FSK, = = 5,86
: ,
: 47
: 7 × 7 Costas (, , Tx)
: 79 * 2048/12000 = 13,48
: -20 ( -24 AP-, TBD).
: HF JT9, JT65.
FT8 .
QSO

JT9, JT65, QRA64: * FT8
, QSO .
, JT9, 1/4 JT65A 1/2 QRA64.
JT9E-H: * FT8
, ,
.

C :
http://www.physics.princeton.edu/pulsar/k1jt/wsjtx.html
http://www.jtdx.tech/en/
http://forum.qrz.ru/6-cifrovye-vidy-radiosvyazi/46933-ft-8-a.html
http://forum.qrz.ru/6-cifrovye-vidy-radiosvyazi/44060-proekt-wsjt-x-mody-jt65-jt9-wspr-jt4-jtmsk-rabota-s-testovym-softom.html
http://www.cqham.ru/forum/showthread.php?36050-%CC%EE%E4%E0-FT8-WSJT-X-1-8/page29
http://www.radioscanner.ru/forum/topic49802.html
http://ew8ax.info/blog/search.php?tag=ur5eqf
http://ur5eqf.ru/help_video/styikovka-originalnyih-wsjt-x-i-jtdx-s-ur5eqflog
http://ew8ax.info/blog/search.php?tag=ur5eqf


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