Hello Tobias,
Thanks for the good explanation.
Well, i remember some further problems. Do i remember correctly that it
is no actual NAVTEX mode, i.e. no sync tone to the beginning? The
message "ZCZC [incrementing number]" is there, or not? What about the
automatically updating transmission time in the text? Is it there too?
These are important functions i find.
Well, i may give it a try soon, thanks again. But this night is for LF!! :-)
73, Stefan/DK7FC
Am 29.03.2014 23:21, schrieb Tobias DG3LV:
Hi Stefan, MF !
A small introduction to beaconing by MultiPSK (for any mode):
MultiPSK calls its long macros "sequences". There can be 1 to 24
sequences, each stored in a file named "Fxx.SER", where xx is the
sequence number ranging from 1 to 24. My example file is called
"F1.SER", it is a replacement for the original file.
Install MultiPSK, then first replace old "F1.SER" file in the programs
directory by the supplied one. Start MultiPSK and go to "configuration
screen" (=first screen at startup), set your soundcard settings for
"input" and "output" and define your PTT-COMport at "serial port". At
the left middle of the configuration screen there is a panel for
"beacon mode (all modes)". Set both sequence numbers to "1". Set
"pause" to a suitable time between two consecutive transmissions. Set
"duration" to several hours, if you want to stay in beacon-mode all
night long. (meant is NOT the duration of the single transmission!!!)
When setting "prior serial number", there will be a "Message nnn" at
the start of each beacon transmission, where "nnn" is incremented
automatically starting at "1".
Leave configuration screen by a click on "rx/tx screen".
Now you are in the main window.
Select "AMTOR-FEC-Navtex" in the mode-selection-panel at the upper
right. (and please select Shift = 170 at the panel just above the
middle of the waterfall.)
Next click on the item "configuration" in the main menu line on top of
the screen. Select/click on "personal Data" and set your call, name,
city etc.
Your texts for <MY CALL>, <MY NAME>, <MY QTH>, <MY LOCATOR>,
<ANTENNA>, <RIG>, <WEB ADRESS> are used by the F1.SER sequence.
Please enter your personal data. After completion click on "save" and
you are back in the main window.
That's all for configuration. (the audio frequency used -1500 Hertz-
is defined in the F1.SER file already, = need not be set)
Now we can test it for a first time :
Start a first single beacon transmit by pressing the "F1" function key
on the keyboard, or by clicking on "Call 1 F1" at the very left just
below the waterfall. You can watch the echo of the transmitted
characters at the Tx-area.
Verify that the text of the message is ok. ("Message nnn" is not shown
yet, it is inserted later at beaconing)
Now we are ready to start beaconing. There is a "Beacon" button
situated just below the "help" item of the main menu. You start the
beacon-mode by clicking on this "Beacon" button (click again to stop).
A big yellow band with "Beacon : AMTOR transmission" just below the
weaterfall verifies that the beacon-mode is on.
That's it.
Beaconing-mode will stop automatically after "duration" time is over,
or at a click on the "beacon" button.
(There is a help function on the right mouse button for most items
used here, but you are warned : the help function of MultiPSK is
extensive and detailled, you could end up reading a manual)
Give it a try, maybe it's worth it.
73 de dg3lv Tobias
Am 29.03.2014 17:32, schrieb Stefan Schäfer:
Hi Tobias,
Thanks for the report.
How do i use this macro? Last night i tried to use MultiPSK again but it
takes a long time to get a rough overview over the
100000000000000000000000000000000000000000000000000000000000 buttons.
BTW decoding works well in fldigi here...
About the 170 Hz shift, still the old problem. Actually i informed an OM
who is in the group of people who work/improve the program. However i
did not try to look for a recent update. I'm going to ask him again if
the change has been done.
73, Stefan/DK7FC
Am 29.03.2014 12:45, schrieb Tobias DG3LV:
Hi Mal !
Hi Wolf !
To use MultiPSK for transmission of an AMTOR-FEC beacon in the style
received yesterday, here comes a MACRO file to be used as a template.
MultiPSK is capable of sending standard-conform AMTOR-FEC at 170 Hertz
shift. This can be decoded by all programs/Decoders (including
"fldigi") that decode "NAVTEX" aka "AMTOR-FEC".
That signal of yesterday was received from sequence number 19
(2014-03-27, 2349 UTC) to 25 (2014-03-28, 0014 UTC) with some QSB.
Sequences 23 and 24 were decoded just partly because of deep QSB.
(After seq 25 I was QRT)
73 de dg3lv Tobias
Am 29.03.2014 10:07, schrieb mal hamilton:
I heard this Wolf it was hi speed rtty possibly 75 or 100 baud. I did
not try a decode
It was a strong signal
73 MAL/G3KEV
----- Original Message ----- From: "wolf_dl4yhf" <[email protected]>
To: "RSGB LF Group at blacksheep" <[email protected]>
Sent: Saturday, March 29, 2014 8:50 AM
Subject: LF: MF : RTTY ?
Greetings all,
There was a powerful RTTY signal around 476.4 (?) kHz yesterday,
european night, which didn't look like the military stuff but an
amateur transmission. Tone spacing about 200 Hz.
I tried -in vain- to decode it with MMTTY but no luck, whatever
combination of buttons on the main screen were clicked.
Anyone with more luck here ? Try another software ?
It's been many years since I last used that mode, with a DJ6HP
"Filter-Konverter"...
73, Wolf DL4YHF .
|
