mirror of https://github.com/saitohirga/WSJT-X.git
80 lines
3.3 KiB
Plaintext
80 lines
3.3 KiB
Plaintext
// Status=review
|
|
.Main Window:
|
|
- Select *FT8* on the *Mode* menu.
|
|
- Set Tx frequency to 1600 Hz, Rx to 1442 Hz.
|
|
- Double-click on *Erase* to clear both text windows.
|
|
|
|
.Wide Graph Settings:
|
|
|
|
- *Bins/Pixel* = 4, *Start* = 200 Hz, *N Avg* = 2
|
|
- Adjust the width of the Wide Graph window so that the upper
|
|
frequency limit is approximately 2600 Hz.
|
|
|
|
.Open a Wave File:
|
|
|
|
- Select *File | Open* and navigate to
|
|
+...\save\samples\FT8\181201_180245.wav+. The waterfall and Band
|
|
Activity window should look something like the following screen shots.
|
|
(This recording was made during the "FT8 Roundup" contest, so most
|
|
transmissions happen to be using *RTTY Roundup* message formats.)
|
|
|
|
[[X15]]
|
|
image::FT8_waterfall.png[align="left",alt="Wide Graph Decode 170709_135615"]
|
|
|
|
image::ft8_decodes.png[align="left"]
|
|
|
|
- Click with the mouse anywhere on the waterfall display. The green Rx
|
|
frequency marker will jump to your selected frequency, and the Rx
|
|
frequency control on the main window will be updated accordingly.
|
|
|
|
- Do the same thing with the *Shift* key held down. Now the red Tx
|
|
frequency marker and its associated control on the main window will
|
|
follow your frequency selections.
|
|
|
|
- Do the same thing with the *Ctrl* key held down. Now the both colored
|
|
markers and both spinner controls will follow your selections.
|
|
|
|
- Double-clicking at any frequency on the waterfall does all the
|
|
things just described and also invokes the decoder in a small range
|
|
around the Rx frequency. To decode a particular signal, double-click
|
|
near the left edge of its waterfall trace.
|
|
|
|
- Now double-click on any of the the lines of decoded text in the Band
|
|
Activity window. Any line will show the same behavior, setting
|
|
Rx frequency to that of the selected message and leaving Tx frequency
|
|
unchanged. To change both Rx and Tx frequencies, hold *Ctrl* down
|
|
when double-clicking.
|
|
|
|
TIP: To avoid QRM from competing callers, it is frequently desirable
|
|
to answer a CQ on a different frequency from that of the CQing
|
|
station. The same is true when you tail-end another QSO. Choose a Tx
|
|
frequency that appears to be not in use. You might want to check the
|
|
box *Hold Tx Freq*.
|
|
|
|
TIP: Keyboard shortcuts *Shift+F11* and *Shift+F12* provide an easy
|
|
way to move your Tx frequency down or up in 60 Hz steps.
|
|
|
|
TIP: An online {ft8_tips} by ZL2IFB offers many helpful tips on
|
|
operating procedures.
|
|
|
|
.FT8 DXpedition Mode:
|
|
|
|
This special operating mode enables DXpeditions to make FT8 QSOs at
|
|
very high rates. Both stations must use _WSJT-X_ Version 1.9 or
|
|
later. Detailed operating instructions for {ft8_DXped} are available
|
|
online. Do not try to use DXpedition mode without reading these
|
|
instructions carefully!
|
|
|
|
IMPORTANT: FT8 DXpedition mode is intended for use by rare-entity
|
|
DXpeditions and other unusual circumstances in which sustained QSO
|
|
rates well above 100/hour are expected. Do not use the multi-signal
|
|
capability unless you satisfy this requirement, and do not use
|
|
DXpedition Mode in the conventional FT8 sub-bands. If you are
|
|
contemplating operation as Fox using DXpedition Mode, find a suitable
|
|
dial frequency consistent with regional band plans and publicize it
|
|
for the operators you hope to work. Remember that on-the-air signal
|
|
frequencies will be higher than the dial frequency by up to 4 kHz.
|
|
|
|
IMPORTANT: When finished with this Tutorial, don't forget to re-enter
|
|
your own callsign as *My Call* on the *Settings | General* tab.
|