In Region 1 that part of the band is digi mode according to the band plan
7040 - 7047 Schmalband-Sendearten Digimode
7047 - 7050 Schmalband-Sendearten Digimode, automatische digitale Stationen
Schmalband means narrow mode, up to 500Hz band width
73
Peter, DJ7WW
-----Original-Nachricht-----
Betreff: Re: [CQ-Contest] 40M FT4 Frequency
Datum: 2019-08-06T22:02:01+0200
Von: "john@kk9a.com" <john@kk9a.com>
An: "cq-contest@contesting.com" <cq-contest@contesting.com>
What does 7.040 RTTY/Data DX mean? Is this a single channel? FWIW I
have made a number of DX RTTY QSOs slightly above 7.040, perhaps even
on the new 7.0475 FT4 frequency. That segment of 40m is quite busy in
RTTY, CW and even SSB contests.
John KK9A
Michael Ritz w7vo wrote:
The ARRL Bandplan on the website shows:
7.040 RTTY/Data DX
7.080-7.125 RTTY/Data
I don't know where the 7047 kHz frequency came from, but that choice
kind of surprised me when I first loaded FT8/FT4 onto one of my
station computers a couple of weeks ago. The FT8 frequencies are hard
coded into the software, but there are no pre-loaded frequencies for
FT4. I had to research on-line to figure out where they were.
The FCC limits for data are 7000 to 7125 kHz, (for Extras, and of
course it varies by class). Exactly what do you want the Board to do
here, come up with a recommended special ARRL bandplan for FT8/FT4?
73;
Mike Ritz, W7VO
Director, NW Division
----- End forwarded message -----
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