[GreenKeys] copying RTTY off the air

[Russ Miller]

One regular service transmitting RTTY meteorological information is the
German Meteorological Service (Deutscher Wetterdienst or DWD)
<http://www.dwd.de/>. The DWD regularly transmit two programs on various
frequencies on LF <https://en.wikipedia.org/wiki/Low_frequency> and HF
<https://en.wikipedia.org/wiki/High_frequency> in standard RTTY (ITA-2
alphabet). The list of callsigns, frequencies, baud rates
<https://en.wikipedia.org/wiki/Baud> and shifts are as follows:[
CallsignFrequencyspeed/shift
DDH47 147.3 kHz 50 baud/85 Hz
DDK2 4583 kHz 50 baud/450 Hz
DDH7 7646 kHz 50 baud/450 Hz
DDK9 10100.8 kHz 50 baud/450 Hz
DDH9 11039 kHz 50 baud/450 Hz
DDH8 14467.3 kHz 50 baud/450 Hz
The DWD signals can be easily received in Europe, North Africa and parts of
North America.

On Mon, May 4, 2020 at 8:07 PM Nick England <navy.radio at gmail.com> wrote:

> FWIW, I have come across a couple of regular RTTY transmissions to
> exercise my machinery
> 1) The ARRL Bulletin
> http://www.arrl.org/w1aw-operating-schedule#digital
> Frequencies are 3.5975, 7.095, 14.095, 18.1025, 21.095, 28.095, 50.350,
> and 147.555 MHz.
> Weekday 2200Z and 0100Z rotating schedule of modes including 60wpm Baudot.
> Also Satellite info at 6:30pm Eastern on Tues and Fri
>
> http://www.arrl.org/files/file/W1AW/W1AW%20Daily%20Digital%20Bulletin%20Schedule.pdf
>
> 2) Weekly QSO sched W8DRM (Lima OH) and WD9GMK (Southport NC) on 7085 -
> Tuesdays around 8:30pm Eastern - I was just "reading the mail" and startled
> to hear an actual RTTY QSO lasting longer than 385 microseconds (see #4).
>
> 3) Special events station K2H (New York) on 7085 at 2200Z - I don't know
> what days. They were calling CQ but disappeared before I could get my
> 70-tube transmitter going....
>
> 4) There were lots of RTTY stations in some contest this past weekend, but
> their computers had exchanged "599 TU QRZ" before I could even tune in to
> copy anyone except for the unsuccessful folks calling CQ multiple times.
>
> Frequencies are (I think) the high MARK frequencies - I was using military
> gear and could only get close - I can tune in 100Hz increments with +/-85
> or +/-425 Hz shift. So I'd tune to 7085.9 LSB to copy a "7085"
> signal...using LSB to invert things to military MARK low with 1000 Hz +/-85
> Hz tone.
>
> 5) West coast Clatternet Saturdays 7087 USB 850 shoft
> http://www.mrcgwest.org/mrcg-radio-nets/
>
> 6) Any more???
>
> Cheers,
> Nick England K4NYW
> www.navy-radio.com
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