The new mode is named after its developers, Steven Franke, K9AN, and Joe Taylor, K1JT. The numeral designates the mode’s 8-frequency shift keying format. Tones are spaced at 6.25 Hz, and an FT8 signal occupies just 50 Hz. Unlike JT65 or JT9, transmit and receive cycles in FT8 each last about 15 seconds. Like JT65, FT8 requires accurate time synchronization. An auto-sequencing feature offers the option to respond automatically to the first decoded reply to your CQ.(ARRL)
Franke-Taylor design, 8FSK modulation
read more ...
Read more about FT-8 from FT-8 Digital Mode Club
Read more about FT-8call (experimental mode) on QRZ.com
There are numerous solutions for connecting computer with rig:
RIGblaster Advantage Manual
Step by step documentation connecting FT-817 and Rigblaster
Cabling for FT-817
To avoid changing internal jumpering while working with different riggs see special cables
by QRP Project.
USB Interface III
Data mode communication on the Yaesu FT-817
Data modes settings on the Yaesu FT-817
Data modes settings on the Yaesu FT-817 (German video)
FT-991 setup for digital modes (with only a USB cable)
Simply by USB-cable
FT-991 setup for digital modes
WSJT-X FT8 and the Icom 7300
To install the WSJT-X Software on Windows, Linux (also on RasPi) and Mac-OS follow these instructions.
On Ubuntu 14.04 LTS the version 1.9 seems not to be able to be installed because of unsolvable dependencies.
Install v1.8 as follows:
Add PPA .......: sudo add-apt-repository -y ppa:ki7mt/wsjtx-next
Update ........: sudo apt-get update
(ignore the errors because of missing release notes)
Install .......: sudo apt-get install wsjtx
Synchronization of computer clock with Internet time servers by NTP service is very important for using digital operation modes.
Installation of NTP on Windows Platform
Installation of NTP on Ubuntu
Installation of NTP on Raspberry Pi
Use as time server in Austria:
Prepare /etc/ntp.conf as follows:
# Use servers from the NTP Pool Project. Approved by Ubuntu Technical Board
# on 2011-02-08 (LP: #104525). See http://www.pool.ntp.org/join.html for
# more information.
server 0.at.pool.ntp.org iburst
server 1.at.pool.ntp.org iburst
server 2.at.pool.ntp.org iburst
server 3.at.pool.ntp.org iburst
if ntpq produces time out errors:
$ ntpq -pn
127.0.0.1: timed out, nothing received
***Request timed out
please see note under https://www.eecis.udel.edu/~mills/ntp/html/accopt.html
parameter "noquery" and delete it from /etc/ntp.conf