mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-23 12:48:40 -05:00
Many more edits of the User Guide.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6105 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Joe Taylor
parent
e272a12062
commit
f125c22a72
@ -15,18 +15,16 @@ set (UG_SRCS
|
||||
user_guide/controls-functions-messages.adoc
|
||||
user_guide/controls-functions-status-bar.adoc
|
||||
user_guide/controls-functions-wide-graph.adoc
|
||||
user_guide/coop-prgrms.adoc
|
||||
user_guide/cooperating-programs.adoc
|
||||
user_guide/faq.adoc
|
||||
user_guide/font-sizes.adoc
|
||||
user_guide/implementation.adoc
|
||||
user_guide/install-from-source.adoc
|
||||
user_guide/install-linux.adoc
|
||||
user_guide/install-mac.adoc
|
||||
user_guide/install-windows.adoc
|
||||
user_guide/introduction.adoc
|
||||
user_guide/jt65-jt9-differences.adoc
|
||||
user_guide/jt65-protocol.adoc
|
||||
user_guide/jt9-protocol.adoc
|
||||
user_guide/protocols.adoc
|
||||
user_guide/logging.adoc
|
||||
user_guide/make-qso.adoc
|
||||
user_guide/new_features.adoc
|
||||
@ -45,7 +43,6 @@ set (UG_SRCS
|
||||
user_guide/tutorial-example2.adoc
|
||||
user_guide/tutorial-main-window.adoc
|
||||
user_guide/tutorial-wide-graph-settings.adoc
|
||||
user_guide/tx-rx.adoc
|
||||
user_guide/utilities.adoc
|
||||
user_guide/vhf-features.adoc
|
||||
user_guide/wsjtx-main.adoc
|
||||
|
||||
@ -12,4 +12,4 @@ GNU General Public License for more details.
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this documentation. If not, see {gnu_gpl}.
|
||||
|
||||
Copyright (C) 2001-2015 Joseph H Taylor, Jr, {joe_taylor}.
|
||||
Copyright (C) 2001-2015 Joseph H Taylor, Jr., K1JT.
|
||||
|
||||
@ -33,6 +33,7 @@ d). Edit lines as needed. Keeping them in alphabetic order help see dupes.
|
||||
|
||||
// General URL's
|
||||
//:launchpadac6sl: https://launchpad.net/~jnogatch/+archive/wsjtx[WSJT-X Linux Packages]
|
||||
:alarmejt: http://f5jmh.free.fr/index.php?page=english[AlarmeJT]
|
||||
:asciidoc_cheatsheet: http://powerman.name/doc/asciidoc[AsciiDoc Cheatsheet]
|
||||
:asciidoc_help: http://www.methods.co.nz/asciidoc/userguide.html[AsciiDoc User Guide]
|
||||
:asciidoc_questions: http://www.methods.co.nz/asciidoc/faq.html[AsciiDoc FAQ]
|
||||
@ -46,7 +47,7 @@ d). Edit lines as needed. Keeping them in alphabetic order help see dupes.
|
||||
:dev_guide: http://www.physics.princeton.edu/pulsar/K1JT/wsjtx-doc/wsjt-dev-guide.html[Dev-Guide]
|
||||
:devsvn1: http://sourceforge.net/p/wsjt/wsjt/HEAD/tree/[Devel-SVN]
|
||||
:devsvn: http://sourceforge.net/p/wsjt/wsjt/HEAD/tree/[SourceForge]
|
||||
:dimension4: http://www.thinkman.com/dimension4/[Dimension4]
|
||||
:dimension4: http://www.thinkman.com/dimension4/[Thinking Man Software]
|
||||
:download: http://physics.princeton.edu/pulsar/K1JT/wsjtx.html[Download Page]
|
||||
:dxatlas: http://www.dxatlas.com/[Afreet Software, Inc.]
|
||||
:dxlcommander: http://www.dxlabsuite.com/commander/[Commander]
|
||||
@ -60,9 +61,9 @@ d). Edit lines as needed. Keeping them in alphabetic order help see dupes.
|
||||
:gnu_gpl: http://www.gnu.org/licenses/gpl-3.0.txt[GNU General Public License]
|
||||
:homepage: http://physics.princeton.edu/pulsar/K1JT/[WSJT Home Page]
|
||||
:hrd: http://www.hrdsoftwarellc.com/[Ham Radio Deluxe]
|
||||
:jt4eme: http://physics.princeton.edu/pulsar/K1JT/WSJT-X_for_JT4_v6.pdf[here]
|
||||
:jt4eme: http://physics.princeton.edu/pulsar/K1JT/WSJT-X_1.6.0_for_JT4_v7.pdf[here]
|
||||
:jt65protocol: http://physics.princeton.edu/pulsar/K1JT/JT65.pdf[QEX]
|
||||
:jtalert: http://hamapps.com[JT-ALERT-X]
|
||||
:jtalert: http://hamapps.hamspots.net[JT-ALERT-X]
|
||||
:kvasd-installer: http://physics.princeton.edu/pulsar/K1JT/kv-installer.txt[here]
|
||||
:launchpadki7mt: https://launchpad.net/~ki7mt[KI7MT PPA's]
|
||||
:log4om: http://www.log4om.com[Log4OM]
|
||||
|
||||
@ -16,14 +16,14 @@ double-clicking on decoded text or a signal in the waterfall. They
|
||||
can also be adjusted with spinner controls.
|
||||
|
||||
* You can force Tx frequency to the current Rx frequency by clicking
|
||||
the *Tx<Rx* button, and vice-versa for *Rx<Tx*. (Copy is from right
|
||||
to left.) Check the box *Lock Tx=Rx* to make the frequencies always
|
||||
track one another. The on-the-air frequency of your lowest JT9 or
|
||||
JT65 tone is the sum of dial frequency and audio Tx frequency.
|
||||
the *Tx<Rx* button, and vice-versa for *Rx<Tx*. Check the box *Lock
|
||||
Tx=Rx* to make the frequencies always track one another. The
|
||||
on-the-air frequency of your lowest JT9 or JT65 tone is the sum of
|
||||
dial frequency and audio Tx frequency.
|
||||
|
||||
IMPORTANT: In general we do not recommend using *Lock Tx=Rx* since it
|
||||
encourages poor radio etiquette when running a frequency. With *Lock
|
||||
Tx=Rx* checked, your own frequency will move around following your
|
||||
Tx=Rx* checked, your own Tx frequency will move around following your
|
||||
callers.
|
||||
|
||||
* The *Report* control lets you change a signal report that has been
|
||||
|
||||
@ -19,16 +19,16 @@ format works only if a working frequency has been set up on that band,
|
||||
in which case the first working frequency on that band is
|
||||
selected.
|
||||
|
||||
* If you are using CAT control, a small colored square appears in
|
||||
* If you are using CAT control, a small colored circle appears in
|
||||
green if the CAT control is activated and functional. The green
|
||||
square contains the character S if the rig is detected to be in
|
||||
*Split* mode. The square becomes red if you have requested CAT
|
||||
circle contains the character S if the rig is detected to be in
|
||||
*Split* mode. The circle becomes red if you have requested CAT
|
||||
control but communication with the radio has been lost.
|
||||
|
||||
IMPORTANT: Many Icom rigs cannot be queried for split status, current
|
||||
VFO or split transmit frequency. Consequently you should not change
|
||||
the current VFO, split status or frequency using controls on the radio
|
||||
when using _WSJT-X_.
|
||||
when using _WSJT-X_ with an Icom radio.
|
||||
|
||||
* If *DX Grid* contains a valid Maidenhead locator, the corresponding
|
||||
great-circle azimuth and distance from your location are displayed.
|
||||
|
||||
@ -9,8 +9,8 @@ image::images/main-ui-controls.png[align="left",width=650,alt="Main UI Controls"
|
||||
about a QSO you have nearly completed. You can edit or add to this
|
||||
information before clicking *OK* to log the QSO. If you check *Prompt
|
||||
me to log QSO* on the *Setup* menu, the program will raise the
|
||||
confirmation screen automatically when you send a 73 or free-text
|
||||
message.
|
||||
confirmation screen automatically when you send a message containing
|
||||
73.
|
||||
|
||||
//.Log QSO Window
|
||||
image::images/log-qso.png[align="center",alt="Log QSO"]
|
||||
@ -30,7 +30,7 @@ return to the original frequency.
|
||||
Double-clicking *Erase* clears both text windows.
|
||||
|
||||
* *Decode* tells the program to repeat the decoding procedure at the
|
||||
Rx frequency (green marker on waterfall), using the most recently
|
||||
Rx frequency (green marker on waterfall scale), using the most recently
|
||||
completed sequence of received data.
|
||||
|
||||
* *Enable Tx* toggles the program into automatic T/R sequencing mode
|
||||
@ -43,9 +43,9 @@ s into a UTC minute.
|
||||
automatic T/R sequencing.
|
||||
|
||||
* *Tune* may be used to switch into Tx mode and generate an
|
||||
unmodulated carrier at the specified Tx frequency (red marker
|
||||
on waterfall). This process may be useful for adjusting an antenna
|
||||
tuner. The button is highlighted in red while *Tune* is
|
||||
active. Toggle the button a second time to terminate the *Tune*
|
||||
process.
|
||||
unmodulated carrier at the specified Tx frequency (red marker on
|
||||
waterfall scale). This process may be useful for adjusting an antenna
|
||||
tuner. The button is highlighted in red while *Tune* is active.
|
||||
Toggle the button a second time or click *Halt Tx* to terminate the
|
||||
*Tune* process.
|
||||
|
||||
|
||||
@ -41,6 +41,8 @@ decoded message.
|
||||
==== Help Menu
|
||||
image::images/help-menu.png[align="left",alt="Help Menu"]
|
||||
|
||||
===== Keyboard Shortcuts (F3)
|
||||
image::images/keyboard-shortcuts.png[align="left",alt="Help Menu"]
|
||||
|
||||
===== Special Mouse Commands (F5)
|
||||
image::images/special-mouse-commands.png[align="left",alt="Help Menu"]
|
||||
|
||||
@ -21,7 +21,7 @@ a transmission.
|
||||
|
||||
* All six Tx message fields are editable. You can modify an
|
||||
automatically generated message or enter a desired message, keeping in
|
||||
mind the strict limits on message content. See <<PROTOCOLS,Protocol
|
||||
mind the limits on message content. See <<PROTOCOLS,Protocol
|
||||
Specifications>> for details.
|
||||
|
||||
* Click on the pull-down arrow for message #5 to select one of the
|
||||
|
||||
@ -24,11 +24,6 @@ updating the spectral display. Values around 5 are suitable for
|
||||
normal JT9 and JT65 operation. Adjust *N Avg* to make the waterfall
|
||||
move faster or slower, as desired.
|
||||
|
||||
- *Zero* and *Gain* control the reference level and scaling for
|
||||
waterfall colors. Values around 0 for both parameters are usually
|
||||
about right, depending on the input signal level, the chosen palette,
|
||||
and your own preferences.
|
||||
|
||||
- A dropdown list below the *Palette* label lets you select from a
|
||||
wide range of waterfall color palettes.
|
||||
|
||||
@ -37,13 +32,25 @@ user-defined palette.
|
||||
|
||||
- Check *Flatten* if you want _WSJT-X_ to compensate for a sloping or
|
||||
uneven response across the received passband. For this feature to
|
||||
work properly, remember to restrict the range of displayed frequencies
|
||||
work properly, you should restrict the range of displayed frequencies
|
||||
so that only the active part of the spectrum is shown.
|
||||
|
||||
- Select *Current* or *Cumulative* for the spectrum displayed in the
|
||||
bottom one-third of the Wide Graph window. *Current* is the average
|
||||
spectrum over the most recent *N Avg* FFT calculations. *Cumulative*
|
||||
is the average spectrum since the start of the present UTC minute.
|
||||
(*Linear Avg* is not useful for JT9 or JT65; it is intended for use
|
||||
*Linear Avg* is useful in JT4 mode, especially when short-form
|
||||
messages are used.
|
||||
|
||||
for JT9 or JT65; it is intended for use
|
||||
with the yet-to-be implemented JT4 mode.)
|
||||
|
||||
- Four sliders control reference levels and scaling for waterfall
|
||||
colors and the spectrum plot. Values around midscale are usually
|
||||
about right, depending on the input signal level, the chosen palette,
|
||||
and your own preferences.
|
||||
|
||||
- *Smoothing* is active only when *Linear Average* has been selected.
|
||||
Smoothing the displayed spectrum over more than one bin can enhance
|
||||
your ability to detect weak EME signals with Doppler spread more than
|
||||
a few Hz.
|
||||
|
||||
@ -1,5 +0,0 @@
|
||||
There is one program and one service that compliment _WSJT-X_ greatly. They are as follows:
|
||||
|
||||
- {pskreporter}
|
||||
|
||||
- {jtalert}
|
||||
@ -21,3 +21,8 @@ optional alert conditions (decoding of a new DXCC, new state, etc.),
|
||||
and convenient direct access to web services such as callsign lookup.
|
||||
|
||||
image::images/jtalert.png[align="left",alt="JTAlert-X image"]
|
||||
|
||||
* {alarmejt}, by F5JMH, is available only for Linux. The program keeps
|
||||
its own logbook. It fetches contact information from _WSJT_X and
|
||||
provides visual alerts for new DXCC entities and grid squares on the
|
||||
current band, as well as other options.
|
||||
|
||||
Binary file not shown.
|
Before Width: | Height: | Size: 3.5 KiB After Width: | Height: | Size: 3.4 KiB |
Binary file not shown.
|
Before Width: | Height: | Size: 4.3 KiB After Width: | Height: | Size: 5.5 KiB |
@ -4,10 +4,9 @@
|
||||
Immediately before the start of a transmission _WSJT-X_ encodes a
|
||||
user's message and computes the sequence of tones to be sent. The
|
||||
audio waveform is computed on-the-fly, with 16-bit integer samples
|
||||
sent to the audio output device at a 48000 Hz rate. Generated JT65
|
||||
and JT9 signals have continuous phase and constant amplitude, and
|
||||
there are no key clicks. The transmitter's power amplifier need not
|
||||
be highly linear.
|
||||
sent to the audio output device at a 48000 Hz rate. Generated signals
|
||||
have continuous phase and constant amplitude, and there are no key
|
||||
clicks. The transmitter's power amplifier need not be highly linear.
|
||||
|
||||
.Receiving
|
||||
|
||||
@ -20,14 +19,14 @@ s, half the JT9 symbol length.
|
||||
.Decoding
|
||||
|
||||
At the end of a reception sequence, about 50 seconds into the UTC
|
||||
minute, received data samples are forwarded to the decoder. For
|
||||
operator convenience the decoder goes through its full procedure
|
||||
twice: first at the selected Rx frequency, and then over the full
|
||||
displayed frequency range. Each decoding pass can be described as a
|
||||
sequence of discrete blocks. The functional blocks are different for
|
||||
the JT65 and JT9 modes. In dual-mode JT9+JT65 operation on computers
|
||||
with more than one CPU, decoding computations for the two modes are
|
||||
done in parallel.
|
||||
minute, received data samples are forwarded to the decoder. In JT9
|
||||
and JT65 modes the decoder goes through its full procedure twice:
|
||||
first at the selected Rx frequency, and then over the full displayed
|
||||
frequency range. Each decoding pass can be described as a sequence of
|
||||
discrete blocks. Details of the functional blocks are different for
|
||||
each mode. In dual-mode JT9+JT65 operation on computers with more
|
||||
than one CPU, decoding computations for the two modes are done in
|
||||
parallel.
|
||||
|
||||
The basic decoding algorithm for JT65 mode is described in the 2005
|
||||
{jt65protocol} paper. The following list summarizes the corresponding
|
||||
@ -6,7 +6,7 @@ installation notes.
|
||||
|
||||
If you have already installed a previous version, you can retain it by
|
||||
changing its name in the *Applications* folder (say, from _WSJT-X_ to
|
||||
_WSJT-X_previous_). You can then proceed to the installation phase.
|
||||
_WSJT-X_1.5_). You can then proceed to the installation phase.
|
||||
|
||||
Take note also of the following:
|
||||
|
||||
|
||||
@ -18,8 +18,9 @@ directory is ``invisible''. It's there, however, and accessible.
|
||||
An alternative (shortcut) directory name is %LOCALAPPDATA%\WSJT-X\.
|
||||
|
||||
- The built-in Windows facility for time synchronization is usually
|
||||
not adequate. We recommend the program _Meinberg NTP_: see {ntpsetup}
|
||||
for downloading and installation instructions.
|
||||
not adequate. We recommend the program _Meinberg NTP_ (see {ntpsetup}
|
||||
for downloading and installation instructions) or _Dimension 4_ from
|
||||
{dimension4}.
|
||||
|
||||
- _WSJT-X_ expects your sound card to do its raw sampling at 48000 Hz.
|
||||
To ensure that this will be so when running under recent versions of
|
||||
|
||||
@ -39,7 +39,7 @@ even if they are far below the audible threshold.
|
||||
|
||||
_WSJT-X_ provides spectral displays for passbands up to 5 kHz,
|
||||
flexible rig control for nearly all modern radios used by amateurs,
|
||||
and a wide variety of special aids such as automatic Doppler control
|
||||
and a wide variety of special aids such as automatic Doppler tracking
|
||||
for EME QSOs and Echo testing. The program runs equally well on
|
||||
Windows, Macintosh, and Linux systems, and installation packages are
|
||||
available for all three platforms.
|
||||
|
||||
@ -1,41 +0,0 @@
|
||||
// Status=review
|
||||
|
||||
The most striking difference between JT65 and JT9 is the much smaller
|
||||
occupied bandwidth of JT9: 15.6 Hz, compared with 177.6 Hz for JT65A.
|
||||
Transmissions in the two modes are essentially the same length, and
|
||||
both modes use exactly 72 bits to carry message information. At the
|
||||
user level the two modes support nearly identical message structures.
|
||||
|
||||
JT65 signal reports are constrained to the range –1 to –30 dB. This
|
||||
range is more than adequate for EME purposes, but not really enough
|
||||
for optimum use at HF and below. S/N values displayed by the JT65
|
||||
decoder are clamped at an upper limit –1 dB, and in present JT65
|
||||
decoders the S/N scale is nonlinear above –10 dB.
|
||||
|
||||
By comparison, JT9 allows for signal reports in the range –50 to +49
|
||||
dB. It manages this by taking over a small portion of ``message
|
||||
space'' that would otherwise be used for grid locators within 1 degree
|
||||
of the south pole. The S/N scale of the present JT9 decoder is
|
||||
reasonably linear (although it's not intended to be a precision
|
||||
measurement tool).
|
||||
|
||||
With clean signals and a clean noise background, JT65 achieves nearly
|
||||
100% decoding down to S/N = –22 dB and about 50% success at –24
|
||||
dB. JT9 is about 2 dB better, achieving 50% decoding at –26 dB. Both
|
||||
modes produce extremely low false-decode rates.
|
||||
|
||||
Early experience suggests that under most HF propagation conditions
|
||||
the two modes have comparable reliability. The tone spacing of JT9 is
|
||||
about two-thirds that of JT65, so in some disturbed ionospheric
|
||||
conditions in the higher portion of the HF spectrum, JT65 may perform
|
||||
better.
|
||||
|
||||
JT9 is an order of magnitude better in spectral efficiency. On a busy
|
||||
HF band, the conventional 2-kHz-wide JT65 sub-band is often filled
|
||||
with overlapping signals. Ten times as many JT9 signals can fit into
|
||||
the same frequency range, without collisions.
|
||||
|
||||
JT65 signals often decode correctly even when they overlap. Such
|
||||
behavior is much less likely with JT9 signals, which fill their occupied
|
||||
bandwidth more densely. JT65 may also be more forgiving of small
|
||||
frequency drifts.
|
||||
@ -1,51 +0,0 @@
|
||||
// Status=review
|
||||
|
||||
JT65 was designed for making minimal QSOs via EME (``moon-bounce'') on
|
||||
the VHF and UHF bands. A detailed description of the protocol and its
|
||||
implementation in program _WSJT_ was published in {jt65protocol} for
|
||||
September-October, 2005. Briefly stated, JT65 uses 60 s T/R sequences
|
||||
and carefully structured messages. Standard messages are compressed so
|
||||
that two callsigns and a grid locator can be transmitted in just 71
|
||||
information bits. A 72^nd^ bit serves as a flag to indicate that a
|
||||
message consists of arbitrary text (up to 13 characters) instead of
|
||||
callsigns and a grid locator. Special formats allow other information
|
||||
such as add-on callsign prefixes (e.g., ZA/K1ABC) or numerical signal
|
||||
reports (in dB) to be substituted for the grid locator. The basic aim
|
||||
is to compress the most common messages used for minimally valid QSOs
|
||||
into a minimum fixed number of bits. After compression, a Reed Solomon
|
||||
(63,12) error-control code converts 72-bit user messages into
|
||||
sequences of 63 six-bit channel symbols.
|
||||
|
||||
JT65 requires tight synchronization of time and frequency between
|
||||
transmitting and receiving stations. Each transmission is divided into
|
||||
126 contiguous time intervals or symbols of length 4096/11025 = 0.372
|
||||
s. Within each interval the waveform is a constant-amplitude sinusoid
|
||||
at one of 65 pre-defined frequencies. Frequency steps between
|
||||
intervals are accomplished in a phase-continuous manner. Half of the
|
||||
channel symbols are devoted to a pseudo-random synchronizing vector
|
||||
interleaved with the encoded information symbols. The sync vector
|
||||
allows calibration of time and frequency offsets between transmitter
|
||||
and receiver. A transmission nominally begins at t = 1 s after the
|
||||
start of a UTC minute and finishes at t = 47.8 seconds. The
|
||||
synchronizing tone is at 11025 × 472/4096 = 1270.46 Hz, and is normally
|
||||
sent in each interval having a “1” in the following pseudo-random
|
||||
sequence:
|
||||
|
||||
100110001111110101000101100100011100111101101111000110101011001
|
||||
101010100100000011000000011010010110101010011001001000011111111
|
||||
|
||||
Encoded user information is transmitted during the 63 intervals not
|
||||
used for the sync tone. Each channel symbol generates a tone at
|
||||
frequency 11025 × 472/4096 + 11025/4096 × (N+2) × m, where N is the
|
||||
value of the six-bit symbol, 0 ≤ N ≤ 63, and m is 1, 2, or 4 for JT65
|
||||
sub-modes A, B, or C. Sub-mode JT65A is always used at HF.
|
||||
|
||||
For EME (but, conventionally, not on the HF bands) the signal report
|
||||
OOO is sometimes used instead of numerical signal reports. It is
|
||||
conveyed by reversing sync and data positions in the transmitted
|
||||
sequence. Shorthand messages for RO, RRR, and 73 dispense with the
|
||||
sync vector entirely and use time intervals of 16384/11025 = 1.486 s
|
||||
for pairs of alternating tones. The lower frequency is always 1270.46
|
||||
Hz, the same as that of the sync tone, and the frequency separation is
|
||||
110250/4096 = 26.92 Hz multiplied by n × m, with n = 2, 3, 4 for the
|
||||
messages RO, RRR, and 73.
|
||||
@ -1,20 +0,0 @@
|
||||
// Status=review
|
||||
//Needs work!
|
||||
|
||||
JT9 is designed for making minimally valid QSOs at LF, MF, and HF. It
|
||||
uses 72-bit structured messages nearly identical (at the user level)
|
||||
to those in JT65. Error control coding (ECC) uses a strong
|
||||
convolutional code with constraint length K=32, rate r=1/2, and a zero
|
||||
tail, leading to an encoded message length of (72+31) × 2 = 206
|
||||
information-carrying bits. Modulation is nine-tone frequency-shift
|
||||
keying, 9-FSK. Eight tones are used for data, one for
|
||||
synchronization. Eight data tones means that three data bits are
|
||||
conveyed by each transmitted information symbol. Sixteen symbol
|
||||
intervals are devoted to synchronization, so a transmission requires a
|
||||
total of 206 / 3 + 16 = 85 (rounded up) channel symbols. The sync
|
||||
symbols are those numbered 1, 2, 5, 10, 16, 23, 33, 35, 51, 52, 55,
|
||||
60, 66, 73, 83, and 85 in the transmitted sequence. Each symbol lasts
|
||||
for 6912 sample intervals at 12000 samples per second, or about 0.576
|
||||
seconds. Tone spacing of the 9-FSK modulation is 12000/6912 = 1.736
|
||||
Hz, the inverse of the symbol duration. The total occupied bandwidth
|
||||
is 9 × 1.736 = 15.6 Hz.
|
||||
@ -22,10 +22,10 @@ before'' status for this callsign (according to log file
|
||||
background color, as follows:
|
||||
|
||||
[horizontal]
|
||||
!:: (default color bright purple) -- New DXCC entity
|
||||
~:: (light pink) -- You have already worked this DXCC entity but not
|
||||
!:: default color bright purple: -- New DXCC entity
|
||||
~:: light pink: -- You have already worked this DXCC entity but not
|
||||
this station
|
||||
:: (green) -- You have previously worked the calling station
|
||||
:: green: -- You have previously worked the calling station
|
||||
|
||||
In this respect the program does not distinguish between modes, but it
|
||||
does differentiate between bands.
|
||||
|
||||
@ -7,16 +7,12 @@ minimal QSOs using short, structured messages. The process works best
|
||||
if you use these formats and follow standard operating practices. The
|
||||
recommended basic QSO goes something like this:
|
||||
|
||||
[width="90%",cols="3,7,12",options="header"]
|
||||
|=======================================
|
||||
|UTC|Transmitted Message|Comment
|
||||
|0001|CQ K1ABC FN42|K1ABC calls CQ
|
||||
|0002|K1ABC G0XYZ IO91|G0XYZ answers
|
||||
|0003|G0XYZ K1ABC –19|K1ABC sends report
|
||||
|0004|K1ABC G0XYZ R–22|G0XYZ sends acknowledgment and report
|
||||
|0005|G0XYZ K1ABC RRR|K1ABC sends acknowledgment
|
||||
|0006|K1ABC G0XYZ 73|G0XYZ sends 73
|
||||
|=======================================
|
||||
CQ K1ABC FN42 #K1ABC calls CQ
|
||||
K1ABC G0XYZ IO91 #G0XYZ answers
|
||||
G0XYZ K1ABC –19 #K1ABC sends report
|
||||
K1ABC G0XYZ R–22 #G0XYZ sends R+report
|
||||
G0XYZ K1ABC RRR #K1ABC sends RRR
|
||||
K1ABC G0XYZ 73 #G0XYZ sends 73
|
||||
|
||||
*Standard messages* consist of two callsigns (or CQ, QRZ, or DE and
|
||||
one callsign) followed by the transmitting station’s grid locator, a
|
||||
@ -35,9 +31,10 @@ lie in the range –30 to –1 dB, and values are significantly compressed
|
||||
above about -10 dB. JT9 supports the extended range –50 to +49 dB and
|
||||
assigns more reliable numbers to relatively strong signals.
|
||||
|
||||
IMPORTANT: Signals become visible on the waterfall around S/N = –26 dB and
|
||||
audible (to someone with very good hearing) around –15 dB. Thresholds
|
||||
for decodability are around –24 dB for JT65, –26 dB for JT9.
|
||||
IMPORTANT: Signals become visible on the waterfall around S/N = –26 dB
|
||||
and audible (to someone with very good hearing) around –15
|
||||
dB. Thresholds for decodability are around -23 dB for JT4, –24 dB for
|
||||
JT65, –26 dB for JT9.
|
||||
|
||||
=== Free Text Messages
|
||||
|
||||
@ -46,7 +43,7 @@ Free-format messages such as ``TNX ROBERT 73'' or ``5W VERT 73 GL''
|
||||
are supported, up to a maximum of 13 characters, including spaces. In
|
||||
general you should avoid the character / in free-text messages, as the
|
||||
program may then try to interpret your construction as part of a
|
||||
compound callsign. It should be obvious that the JT9 and JT65
|
||||
compound callsign. It should be obvious that the JT4, JT9, and JT65
|
||||
protocols are not designed or well suited for extensive conversations
|
||||
or rag-chewing.
|
||||
|
||||
@ -73,8 +70,8 @@ compound callsigns:
|
||||
The following messages are _not_ valid, because a third word is not
|
||||
permitted in any message containing a *Type 1* compound callsign:
|
||||
|
||||
ZA/K1ABC G0XYZ -22 #These messages will be sent
|
||||
G0XYZ K1ABC/4 73 #without the third "word"
|
||||
ZA/K1ABC G0XYZ -22 #These messages are invalid; each would
|
||||
G0XYZ K1ABC/4 73 # be sent without its third "word"
|
||||
|
||||
A QSO between two stations using *Type 1* compound-callsign messages
|
||||
might look like this:
|
||||
@ -108,8 +105,8 @@ messages containing *Type 2* compound callsigns:
|
||||
DE W4/G0XYZ RRR
|
||||
DE W4/G0XYZ 73
|
||||
|
||||
In each case, the message is treated as *Type 2* because the add-on
|
||||
prefix or suffix is _not_ one of those in the fixed list. Note
|
||||
In each case, the compound callsign is treated as *Type 2* because the
|
||||
add-on prefix or suffix is _not_ one of those in the fixed list. Note
|
||||
that a second callsign is never permissible in these messages.
|
||||
|
||||
IMPORTANT: Remember that during a transmission your transmitted message is
|
||||
@ -162,5 +159,6 @@ as the following checklist:
|
||||
|
||||
- Radio filters centered and set to widest available passband (up to 5 kHz).
|
||||
|
||||
IMPORTANT: Remember that JT9 and J65 generally do not require high
|
||||
power. Under most HF propagation conditions, QRP is the norm.
|
||||
IMPORTANT: Remember that JT4, JT9, J65, and WSPR generally do not
|
||||
require high power. Under most HF propagation conditions, QRP is the
|
||||
norm.
|
||||
|
||||
@ -19,25 +19,26 @@ be always on-frequency to within about 1 Hz.
|
||||
- Mode-specific standard working frequencies accessible from the
|
||||
drop-down band selector.
|
||||
|
||||
- A number of corrections have been made to the Hamlib library, thereby
|
||||
fixing balky rig-control features. A few unreliable features peculiar
|
||||
to particular radios have been removed.
|
||||
- A number of corrections to the Hamlib library, fixing balky
|
||||
rig-control features. A few unreliable features peculiar to
|
||||
particular radios have been removed.
|
||||
|
||||
=== Future releases
|
||||
|
||||
Much work has already been done on Version 1.7 of _WSJT-X_. (Up to
|
||||
now it has been called v1.6.1.) More than 100 people have been
|
||||
building this version for themselves, as development progresses, and
|
||||
reporting on their experiences. The next release will likely have the
|
||||
following features not present in Version 1.6.0, and perhaps others as
|
||||
well:
|
||||
now this branch has been called v1.6.1.) More than 100 people have
|
||||
been building this version for themselves, as development progresses,
|
||||
and reporting on their experiences. The next release will likely have
|
||||
the following features not present in Version 1.6.0, and perhaps
|
||||
others as well:
|
||||
|
||||
- *JTMSK* mode, intended for meteor scatter, ionospheric scatter,
|
||||
aircraft scatter, and the like. Unlike the FSK441, ISCAT, and JTMS
|
||||
modes present in the older program _WSJT_, *JTMSK* uses strong forward
|
||||
error correction and structured messages identical to those in JT4,
|
||||
JT9, and JT65.
|
||||
modes present in the older program _WSJT_, *JTMSK* uses forward error
|
||||
correction and structured messages identical to those in JT4, JT9, and
|
||||
JT65.
|
||||
|
||||
- A significantly improved decoder for JT65, especially advantageous
|
||||
when used in crowded HF bands. Starting with Version 1.7, _WSJT-X_
|
||||
will longer use the patented, closed-source Koetter-Vardy algorithm.
|
||||
will no longer use the patented, closed-source Koetter-Vardy
|
||||
algorithm.
|
||||
|
||||
137
doc/user_guide/protocols.adoc
Normal file
137
doc/user_guide/protocols.adoc
Normal file
@ -0,0 +1,137 @@
|
||||
[[JT65PRO]]
|
||||
=== JT65
|
||||
|
||||
JT65 was designed for making minimal QSOs via EME (``moon-bounce'') on
|
||||
the VHF and UHF bands. A detailed description of the protocol and its
|
||||
implementation in program _WSJT_ was published in {jt65protocol} for
|
||||
September-October, 2005. Briefly stated, JT65 uses 60 s T/R sequences
|
||||
and carefully structured messages. Standard messages are compressed so
|
||||
that two callsigns and a grid locator can be transmitted in just 71
|
||||
information bits. A 72^nd^ bit serves as a flag to indicate that a
|
||||
message consists of arbitrary text (up to 13 characters) instead of
|
||||
callsigns and a grid locator. Special formats allow other information
|
||||
such as add-on callsign prefixes (e.g., ZA/K1ABC) or numerical signal
|
||||
reports (in dB) to be substituted for the grid locator. The basic aim
|
||||
is to compress the most common messages used for minimally valid QSOs
|
||||
into a minimum fixed number of bits. After compression, a Reed Solomon
|
||||
(63,12) error-control code converts 72-bit user messages into
|
||||
sequences of 63 six-bit channel symbols.
|
||||
|
||||
JT65 requires tight synchronization of time and frequency between
|
||||
transmitting and receiving stations. Each transmission is divided into
|
||||
126 contiguous tone intervals or ``symbols'' of length 4096/11025 =
|
||||
0.372 s. Within each interval the waveform is a constant-amplitude
|
||||
sinusoid at one of 65 pre-defined frequencies. Frequency steps between
|
||||
intervals are accomplished in a phase-continuous manner. Half of the
|
||||
channel symbols are devoted to a pseudo-random synchronizing vector
|
||||
interleaved with the encoded information symbols. The sync vector
|
||||
allows calibration of time and frequency offsets between transmitter
|
||||
and receiver. A transmission nominally begins at t = 1 s after the
|
||||
start of a UTC minute and finishes at t = 47.8 seconds. The
|
||||
synchronizing tone is at 11025 × 472/4096 = 1270.46 Hz, and is
|
||||
normally sent in each interval having a “1” in the following
|
||||
pseudo-random sequence:
|
||||
|
||||
100110001111110101000101100100011100111101101111000110101011001
|
||||
101010100100000011000000011010010110101010011001001000011111111
|
||||
|
||||
Encoded user information is transmitted during the 63 intervals not
|
||||
used for the sync tone. Each channel symbol generates a tone at
|
||||
frequency 11025 × 472/4096 + 11025/4096 × (N+2) × m, where N is the
|
||||
value of the six-bit symbol, 0 ≤ N ≤ 63, and m is 1, 2, or 4 for JT65
|
||||
sub-modes A, B, or C. Sub-mode JT65A is always used at HF.
|
||||
|
||||
For EME (but, conventionally, not on the HF bands) the signal report
|
||||
OOO is sometimes used instead of numerical signal reports. It is
|
||||
conveyed by reversing sync and data positions in the transmitted
|
||||
sequence. Shorthand messages for RO, RRR, and 73 dispense with the
|
||||
sync vector entirely and use time intervals of 16384/11025 = 1.486 s
|
||||
for pairs of alternating tones. The lower frequency is always 1270.46
|
||||
Hz, the same as that of the sync tone, and the frequency separation is
|
||||
110250/4096 = 26.92 Hz multiplied by n × m, with n = 2, 3, 4 for the
|
||||
messages RO, RRR, and 73.
|
||||
|
||||
[[JT4PRO]]
|
||||
=== JT4
|
||||
|
||||
JT4 uses 72-bit structured messages nearly identical to those in
|
||||
JT65. Error control coding (ECC) uses a strong convolutional code with
|
||||
constraint length K=32, rate r=1/2, and a zero tail, leading to an
|
||||
encoded message length of (72+31) x 2 = 206 information-carrying
|
||||
bits. Modulation is 4-tone frequency-shift keying at 11025 / 2520 =
|
||||
4.375 baud. Each symbol carries one information bit (the most
|
||||
significant bit) and ony synchronizing bit (the least signicifant
|
||||
bit). The pseudo-random sync vector is the following sequence:
|
||||
|
||||
000011000110110010100000001100000000000010110110101111101000
|
||||
100100111110001010001111011001000110101010101111101010110101
|
||||
011100101101111000011011000111011101110010001101100100011111
|
||||
10011000011000101101111010
|
||||
|
||||
[[JT9PRO]]
|
||||
=== JT9
|
||||
|
||||
JT9 is designed for making minimally valid QSOs at LF, MF, and HF. It
|
||||
uses 72-bit structured messages nearly identical (at the user level)
|
||||
to those in JT65. Error control coding (ECC) uses a strong
|
||||
convolutional code with constraint length K=32, rate r=1/2, and a zero
|
||||
tail, leading to an encoded message length of (72+31) × 2 = 206
|
||||
information-carrying bits. Modulation is nine-tone frequency-shift
|
||||
keying, 9-FSK. Eight tones are used for data, one for
|
||||
synchronization. Eight data tones means that three data bits are
|
||||
conveyed by each transmitted information symbol. Sixteen symbol
|
||||
intervals are devoted to synchronization, so a transmission requires a
|
||||
total of 206 / 3 + 16 = 85 (rounded up) channel symbols. The sync
|
||||
symbols are those numbered 1, 2, 5, 10, 16, 23, 33, 35, 51, 52, 55,
|
||||
60, 66, 73, 83, and 85 in the transmitted sequence. Each symbol lasts
|
||||
for 6912 sample intervals at 12000 samples per second, or about 0.576
|
||||
seconds. Tone spacing of the 9-FSK modulation is 12000/6912 = 1.736
|
||||
Hz, the inverse of the symbol duration. The total occupied bandwidth
|
||||
is 9 × 1.736 = 15.6 Hz.
|
||||
|
||||
[[PROTOCOL_SUMMARY]]
|
||||
=== Summary
|
||||
|
||||
Frequency spacing between tones, total occupied bandwidth, and
|
||||
approximate decoding thresholds are given for the various submodes of
|
||||
JT4, JT9, and JT65 in the following table:
|
||||
|
||||
Submode Spacing BW S/N
|
||||
(Hz) (Hz) dB
|
||||
----------------------------
|
||||
JT4A 4.375 17.5 -23
|
||||
JT4B 8.75 35.0 -22
|
||||
JT4C 17.5 70.0 -21
|
||||
JT4D 39.375 157.5 -20
|
||||
JT4E 78.75 315.0 -19
|
||||
JT4F 157.5 630.0 -18
|
||||
JT4G 315.0 1260.0 -17
|
||||
|
||||
JT9 1.7361 15.625 -27
|
||||
|
||||
JT65A 2.6917 177.6 -25
|
||||
JT65B 5.3833 355.3 -24
|
||||
JT65C 10.767 710.6 -23
|
||||
|
||||
|
||||
Transmissions in all three modes are essentially the same length, and
|
||||
all use 72 bits to carry message information. At user level the modes
|
||||
support nearly identical message structures.
|
||||
|
||||
JT4 and JT65 signal reports are constrained to the range –1 to –30
|
||||
dB. This range is more than adequate for EME purposes, but not enough
|
||||
for optimum use at HF. S/N values displayed by the JT4 and JT65
|
||||
decoders are clamped at an upper limit –1 dB, and the S/N scale is
|
||||
nonlinear above –10 dB.
|
||||
|
||||
By comparison, JT9 allows for signal reports in the range –50 to +49
|
||||
dB. It manages this by taking over a small portion of ``message
|
||||
space'' that would otherwise be used for grid locators within 1 degree
|
||||
of the south pole. The S/N scale of the present JT9 decoder is
|
||||
reasonably linear (although it's not intended to be a precision
|
||||
measurement tool).
|
||||
|
||||
JT9 is an order of magnitude better than JT65 in spectral
|
||||
efficiency. On a busy HF band, the conventional 2-kHz-wide JT65
|
||||
sub-band is often filled with overlapping signals. Ten times as many
|
||||
JT9 signals can fit into the same frequency range, without collisions.
|
||||
@ -11,8 +11,8 @@ IMPORTANT: If you select the audio output device that is also your
|
||||
computer's default audio device, be sure to turn off all system sounds
|
||||
to prevent transmitting them over the air.
|
||||
|
||||
IMPORTANT: If necessary, be sure that your audio device in configured to
|
||||
sample at 48000 Hz, 16 bits.
|
||||
IMPORTANT: Be sure that your audio device in configured to sample at
|
||||
48000 Hz, 16 bits.
|
||||
|
||||
- _Save Directory_: _WSJT-X_ can save its received audio sequences as
|
||||
+.wav+ files. A default directory for these files is provided; you
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
[[FIG_BAND_SETTINGS]]
|
||||
image::images/settings-frequencies.png[align="center",alt="Frequency Screen"]
|
||||
|
||||
_Working Frequencies_: By default the *Working Frequency* table
|
||||
_Working Frequencies_: By default the *Working Frequencies* table
|
||||
contains a list of currently recommended dial frequencies for each
|
||||
mode. You can modify the frequency table as desired.
|
||||
|
||||
@ -23,22 +23,22 @@ configuration.
|
||||
|
||||
_Frequency Calibration_: If you have calibrated your radio using WWV
|
||||
or other reliable frequency references, or perhaps with the technique
|
||||
described {fmt_wspr}, enter the measured values for Intercept A and
|
||||
Slope B in the equation
|
||||
described {fmt_wspr}, enter the measured values for _Intercept_ A and
|
||||
_Slope_ B in the equation
|
||||
|
||||
Dial error = A * B*f
|
||||
Dial error = A + B*f
|
||||
|
||||
where ``Dial error'' and A are in Hz, f is frequency in MHz, and B is
|
||||
parts per million (ppm).
|
||||
in parts per million (ppm).
|
||||
|
||||
Frequency values sent to the radio and received from it will
|
||||
then be adjusted accordingly so that frequencies displayed by _WSJT-X_
|
||||
are correct.
|
||||
are accurate.
|
||||
|
||||
_Station Information_: You can save *Band*, *Offset* and *Antenna
|
||||
Description* information for your station. The antenna information
|
||||
will be included in reception reports sent to {pskreporter}. By
|
||||
default the frequency *Offset* for each band is zero. Nonzero offsets
|
||||
default the frequency offset for each band is zero. Nonzero offsets
|
||||
may be added if (for example) a transverter is in use.
|
||||
|
||||
- For a simple setup approach you might want to delete any unwanted
|
||||
@ -47,7 +47,7 @@ on a *Frequency* entry and type *Ctrl+A* to ``select all,'' and
|
||||
drag-and-drop the entries onto the _Station Information_ table. You
|
||||
can then add any transverter offsets and antenna details.
|
||||
|
||||
- To avoid typing the same information multiple times, you can
|
||||
- To avoid typing the same information many times, you can
|
||||
drag-and-drop entries between the lines of the _Station Information_
|
||||
table.
|
||||
|
||||
|
||||
@ -38,7 +38,8 @@ for the proper parameter values.
|
||||
|
||||
* _Force Control Lines_: A few station setups require the CAT serial
|
||||
port’s *RTS* and/or *DTR* control lines to be forced high or
|
||||
low. Check these boxes only if you are sure they are needed.
|
||||
low. Check these boxes only if you are sure they are needed (for
|
||||
example, to power the radio serial interface).
|
||||
|
||||
- _PTT Method_: select *VOX*, *CAT*, *DTR*, or *RTS* as the desired
|
||||
method for T/R switching. If your choice is *DTR* or *RTS*, select
|
||||
|
||||
@ -4,7 +4,7 @@
|
||||
image::images/tx-macros.png[align="center",alt="Tx Macros Screen"]
|
||||
|
||||
*Tx Macros* are an aid for sending brief, frequently used free-text
|
||||
messages.
|
||||
messages such as the examples shown above.
|
||||
|
||||
- To add a new message to the list, enter the desired text (up to 13
|
||||
characters) in the entry field at top, then click *Add*.
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
=== Setup Help
|
||||
=== Help with Setup
|
||||
|
||||
The best source of help in setting up your station or configuring
|
||||
_WSJT-X_ is the {wsjt_yahoo_group} at email address
|
||||
|
||||
@ -21,9 +21,9 @@ mode, you should normally choose the widest one possible, up to about
|
||||
5 kHz. This choice has the desirable effect of allowing the *Wide
|
||||
Graph* (waterfall and 2D spectrum) to display the conventional JT65
|
||||
and JT9 sub-bands simultaneously on most HF bands. Further details
|
||||
are provided in the <<TUTORIAL,Tutorial>> section. A wider displayed
|
||||
bandwidth may also be helpful at VHF and above, where usage of JT65
|
||||
and JT4 is found over a much wider range of frequencies.
|
||||
are provided in the <<TUTORIAL,Basic Operating Tutorial>>. A wider
|
||||
displayed bandwidth may also be helpful at VHF and above, where JT4
|
||||
and JT65 signals are found over much wider ranges of frequencies.
|
||||
|
||||
- If you have only a standard SSB filter you won’t be able to display
|
||||
more than about 2.7 kHz bandwidth. Depending on the exact dial
|
||||
@ -58,6 +58,6 @@ digital slider labeled *Pwr* at the right edge of the main window.
|
||||
IMPORTANT: Windows Vista and later incorrectly configure audio devices
|
||||
using the Texas Instruments PCM2900 series CODEC for microphone input
|
||||
rather line input. (This chip is used in many radios with built-in
|
||||
USB CODECs, as well as various other audio interfaces.) If using such
|
||||
a device, be sure to set the mic level in the Recording Device
|
||||
Properties to 0 dB.
|
||||
USB CODECs, as well as various other audio interfaces.) If you are
|
||||
using such a device, be sure to set the mic level in the Recording
|
||||
Device Properties to 0 dB.
|
||||
|
||||
@ -16,13 +16,14 @@ image::images/main-ui-1.6.png[align="center",alt="Main UI and Wide Graph"]
|
||||
|
||||
.Decoding Overview
|
||||
|
||||
Decoding takes place at the end of a receive sequence and is proceeds
|
||||
in two steps. The first decode takes place at the selected Rx
|
||||
frequency, indicated by the U-shaped green marker on the waterfall
|
||||
scale. Results appear in both the left (*Band Activity*) and right
|
||||
(*Rx Frequency*) text windows on the main screen. The program then
|
||||
finds and decodes all signals in the selected mode over the displayed
|
||||
frequency range. The red marker indicates your Tx frequency.
|
||||
Decoding takes place at the end of a receive sequence and proceeds in
|
||||
two steps. The first decode is done at the selected Rx frequency,
|
||||
indicated by the U-shaped green marker on the waterfall scale.
|
||||
Results appear in both the left (*Band Activity*) and right (*Rx
|
||||
Frequency*) text windows on the main screen. The program then finds
|
||||
and decodes all signals in the selected mode over the displayed
|
||||
frequency range. The red marker on the waterfall scale indicates your
|
||||
Tx frequency.
|
||||
|
||||
Seven JT9 signals are present in the example file, all decodable.
|
||||
When this file was recorded KF4RWA was finishing a QSO with K1JT.
|
||||
@ -80,7 +81,8 @@ automatically generated and selected for your next transmission.
|
||||
(Alternatively, you might choose to send a free text message or to
|
||||
call CQ again.)
|
||||
|
||||
- Click somewhere on the waterfall to set Rx frequency (green marker).
|
||||
- Click somewhere on the waterfall to set Rx frequency (green marker
|
||||
on waterfall scale).
|
||||
|
||||
- Ctrl-click on the waterfall to set both Rx and Tx frequencies.
|
||||
|
||||
|
||||
@ -38,8 +38,8 @@ for JT9 and JT65 modes run simultaneously, so their results will be
|
||||
interspersed. The *Band Activity* window contains all decodes (you
|
||||
might need to scroll back in the window to see some of them). A
|
||||
signal at the frequency specified by the green marker is given
|
||||
decoding priority, and its message is displayed in the *Rx Frequency*
|
||||
window.
|
||||
decoding priority, and its message is displayed also in the *Rx
|
||||
Frequency* window.
|
||||
|
||||
[[FigDecodes]]
|
||||
image::images/decodes.png[align="center"]
|
||||
@ -102,16 +102,16 @@ The signals in this file are all JT9 signals. To decode them
|
||||
automatically in *JT9+JT65* mode you’ll need to move the *JT65 nnnn JT9*
|
||||
delimiter down to 1000 Hz or less.
|
||||
|
||||
.Start, Zero, and Gain
|
||||
.Waterfall Controls
|
||||
|
||||
Now is a good time to experiment with the *Start*, *Zero*, and *Gain*
|
||||
parameters. *Start* determines the frequency displayed at the left
|
||||
side of the waterfall scale. *Zero* sets the baseline level for
|
||||
colors, and *Gain* sets the sensitivity for color changes. For the
|
||||
receiver setup of this file good values are close to *Zero*=0,
|
||||
*Gain*=0. You may want to uncheck *Flatten* when adjusting the *Zero*
|
||||
and *Gain* controls. Re-open the wave file after each change, to see
|
||||
the new results.
|
||||
Now is a good time to experiment with the *Start* control and the
|
||||
sliders controlling gain and zero-point of the waterfall and spectrum
|
||||
plots. *Start* determines the frequency displayed at the left side of
|
||||
the waterfall scale. Sliders set the baseline level and gain for the
|
||||
waterfall and the several types of spectra. Good starting values
|
||||
should be close to mid-scale. You might want to uncheck *Flatten*
|
||||
when adjusting the sliders. Re-open the wave file after each change,
|
||||
to see the new results.
|
||||
|
||||
IMPORTANT: When finished with this Tutorial, don’t forget to re-enter
|
||||
your own callsign as *My Call* on the *Settings | General* tab.
|
||||
|
||||
@ -4,13 +4,13 @@
|
||||
|
||||
- Select *JT9* from the *Mode* menu and *Deep* from the *Decode* menu.
|
||||
|
||||
- Set the audio frequencies to *Tx 1224 Hz* and *Rx 1224 Hz*. You
|
||||
can type numbers directly into these controls, as well as using their
|
||||
up/down arrows.
|
||||
- Set the audio frequencies to *Tx 1224 Hz* and *Rx 1224 Hz*.
|
||||
|
||||
IMPORTANT: Sliders and spinner controls respond to *Arrow* key presses
|
||||
and *Page Up/Down* key presses, with the *Page* keys moving the
|
||||
controls in larger steps. You can also type numbers directly into
|
||||
the spinner controls.
|
||||
|
||||
- Select *Tab 2* (below the *Decode* button) to choose the alternative
|
||||
set of controls for generating and selecting Tx messages.
|
||||
|
||||
IMPORTANT: Sliders and spin-box controls respond to arrow key presses
|
||||
and Page Up/Down key presses, with the Page keys moving the controls
|
||||
in larger steps.
|
||||
|
||||
@ -57,8 +57,7 @@ one-way shift is +3096.5 Hz. Therefore, the receive frequency is set
|
||||
to 10,360.103097 Hz. When a transmission is started, the frequency
|
||||
is reset to 3096.5 Hz below the nominal frequency.
|
||||
|
||||
|
||||
- Spinner controls at top right of the Astronomical Data window let you
|
||||
- Spinner controls at top right of the *Astronomical Data* window let you
|
||||
set a working frequency above the nominal band edge. The frequency above
|
||||
band edge is the sum of the numbers in these two controls (kHz + Hz).
|
||||
|
||||
@ -74,7 +73,7 @@ the 10 GHz band.
|
||||
- If using a transverter, set the appropriate offset on the *Settings
|
||||
| Frequencies* tab. Offset is defined as (desired transceiver dial
|
||||
reading) minus (desired on-the-air frequency). For example, when
|
||||
using a 144 MHz radio at 10368 MHz, offset = (144 - 10368) =
|
||||
using a 144 MHz radio at 10368 MHz, _Offset (MHz)_ = (144 - 10368) =
|
||||
-10224.000. If the band is already in the table, you can edit the
|
||||
offset by double clicking on the offset field itself. Otherwise a new
|
||||
band can be added by right clicking in the table and selecting _Insert_.
|
||||
@ -83,10 +82,11 @@ image::images/Add_station_info.png[align="center",alt="Station information"]
|
||||
|
||||
- The JT4 decoder in _WSJT-X_ includes optional facilities for
|
||||
averaging over successive transmissions and also correlation decoding,
|
||||
sometimes known as ``Deep Search''. The *Decode* menu appears to
|
||||
provide options to set different decoding behavior. However, in JT4 mode
|
||||
this program version always behaves as if you have selected _Include
|
||||
correlation_.
|
||||
sometimes known as ``Deep Search''.
|
||||
|
||||
IMPORTANT: The *Decode* menu appears to provide options to set
|
||||
different decoding behavior. However, in JT4 mode _WSJT-X_ Version
|
||||
1.6 always behaves as if you have selected _Include correlation_.
|
||||
|
||||
image::images/decoding_depth.png[align="center",alt="Decoding Depth"]
|
||||
|
||||
@ -94,9 +94,8 @@ image::images/decoding_depth.png[align="center",alt="Decoding Depth"]
|
||||
activate automatic generation of these messages, check the box labeled
|
||||
_Sh_ on the main window.
|
||||
|
||||
IMPORTANT: Many additional hints for using JT4 and Echo mode on the
|
||||
EME path are available {jt4eme}. (Thanks to G3WDG for preparing this
|
||||
useful document.)
|
||||
IMPORTANT: Thanks to G3WDG, many additional hints for using JT4 and
|
||||
Echo mode on the EME path are available {jt4eme}.
|
||||
|
||||
=== Echo Mode
|
||||
|
||||
|
||||
@ -102,11 +102,14 @@ include::transceiver-setup.adoc[]
|
||||
[[TUTORIAL]]
|
||||
== Basic Operating Tutorial
|
||||
|
||||
Sections <<TUT_MAIN,7.1>> through <<TUT_EX2,7.4>> cover basic
|
||||
<<TUT_MAIN,Sections 6.1>> through <<TUT_EX2,6.4>> cover basic
|
||||
operation for making two-way QSOs with modes JT9 and JT65 on the HF
|
||||
bands. Section <<TUT_WSPR,7.5>> covers WSPR mode. If you are a new user
|
||||
of _WSJT-X_ we suggest that you go through the full tutorial. It should
|
||||
take no more than 20 minutes.
|
||||
bands. <<WSPR,Section 7>> covers WSPR mode, and
|
||||
<<VHF_AND_UP,Section 8>> covers VHF+ features. If you are a new
|
||||
user of _WSJT-X_ we suggest that you go through the full HF-oriented
|
||||
tutorial while at your radio. It should take no more than 20 minutes.
|
||||
If your main interests are WSPR of VHF+, you may then proceed to
|
||||
Sections 7 and 8.
|
||||
|
||||
[[TUT_MAIN]]
|
||||
=== Main Window Settings
|
||||
@ -187,18 +190,8 @@ include::faq.adoc[]
|
||||
|
||||
[[PROTOCOLS]]
|
||||
== Protocol Specifications
|
||||
include::protocols.adoc[]
|
||||
|
||||
[[JT65PRO]]
|
||||
=== JT65
|
||||
include::jt65-protocol.adoc[]
|
||||
|
||||
[[JT9PRO]]
|
||||
=== JT9
|
||||
include::jt9-protocol.adoc[]
|
||||
|
||||
[[JT65_JT9]]
|
||||
=== JT65 & JT9 Differences
|
||||
include::jt65-jt9-differences.adoc[]
|
||||
|
||||
[[TXRX]]
|
||||
== Implementation Details
|
||||
|
||||
Loading…
Reference in New Issue
Block a user