ARLA/CLUSTER: Os novos modos digitais complexos, mudam a forma de fazer contactos e provavelmente, o radioamadorismo para sempre

[João Costa > CT1FBF]

New Digital modes changing complexion of bands and perhaps of Ham Radio

The ARRL say the wave of software-based digital modes over the past
several years has altered the atmosphere of the HF bands

Some suggest the popularity of modes that make it possible to contact
stations neither operator can even hear has resulted in fewer CW and
SSB signals on bands like 6 meters and 160 meters. Traditional modes
require far more interaction and effort on the part of the operator;
the newer digital modes not so much.

The recent advent of the still-beta “quick” FT8 mode, developed by
Steve Franke, K9AN, and Joe Taylor, K1JT — the “F” and the “T” in the
mode’s moniker — has brought this to a head. Some now wonder if FT8
marks the end of an era and the start of a new, more minimalist age.

“We’ve been as surprised as anyone about the rapid uptake of FT8 for
making QSOs on the HF bands,” Taylor told ARRL this week. Rather than
viewing FT8 as a total game-changer, he sees a dividing line between
such digital modes and more traditional modes.

“SSB and CW are general-purpose modes,” Taylor asserted. “They are
good for ragchewing, DXing, contesting, emergency communications, or
whatever. FT8 and the other modes in WSJT-X are special-purpose modes.
They are designed for making reliable, error-free contacts using very
weak signals — in particular, signals that may be too weak for the
more traditional modes to be usable, or even too weak to hear.”

Read the full ARRL story at
http://www.arrl.org/news/view/new-digital-modes-changing-complexion-of-bands-and-perhaps-of-ham-radio

WSJT-X weak signal modes software, covers FT8 and others
https://physics.princeton.edu/pulsar/k1jt/wsjtx.html