105 lines
5.1 KiB
Plaintext
105 lines
5.1 KiB
Plaintext
Notes on WSJT-X Installation for Mac OS X
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Updated 16 July 2017
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--------------------
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If you have already downloaded a previous version of WSJT-X then I suggest
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you change the name in the Applications folder from WSJT-X to WSJT-X_previous
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before proceeding.
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If you have installed a previous version of WSJT-X before then there is no
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need to change anything on your system so proceed to NEXT.
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BEGIN:
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There are some system matters you must deal with first. Open a Terminal window
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by going to Applications->Utilities and clicking on Terminal.
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Along with this ReadMe file there is a file: sysctl.conf. Drag this file to your Desktop.
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WSJT-X makes use of a block of memory which is shared between different parts of
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the code. The normal allocation of shared memory on a Mac is insufficient and this
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has to be increased. You should use a Mac editor to examine sysctl.conf.
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There are two important parameters that you need to consider. shmmax determines the
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amount of shared memory that must be allocated for WSJT-X to operate. This is 14680064 (14MB)
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and this is defined in the sysctl.conf file and should not be changed.
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It is possible to run more than one instance of WSJT-X simultaneously. See
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"Section 14. Platform Dependencies" in the User Guide. The second important parameter
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shmall=17920 determines how many instances are permitted. This is calculated as:
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(shmall x 4096/14680064) = 5.
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The sysctl.conf file is configured to permit up to 5 instances of wsjtx to run simultaneously.
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If this limitation is acceptable then you can continue to install the sysctl.conf file without making any
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alterations. Otherwise you must edit the file to increase shmall according to this calculation.
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Now move this file into place for the system to use by typing: (Note this assumes that
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you really did drag this file to your Desktop as required earlier.)
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sudo cp $HOME/Desktop/sysctl.conf /etc/
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sudo chmod 664 /etc/sysctl.conf
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sudo chown root:wheel /etc/sysctl.conf
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and then reboot your Mac. This is necessary to install the changes. After the
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reboot you should re-open the Terminal window as before and you can check that the
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change has been made by typing:
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sysctl -a | grep sysv.shm
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If shmmax is not shown as 14680064 then contact me since WSJT-X will fail to load with
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an error message: "Unable to create shared memory segment".
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You are now finished with system changes. You should make certain that NO error messages
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have been produced during these steps. You can now close the Terminal window. It will
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not be necessary to repeat this procedure again, even when you download an updated
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version of WSJT-X.
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NEXT:
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Drag the WSJT-X app to your preferred location, such as Applications.
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You need to configure your sound card. Visit Applications > Utilities > Audio MIDI
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Setup and select your sound card and then set Format to be "48000Hz 2ch-16bit" for
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input and output.
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Now double-click on the WSJT-X app and two windows will appear. Select Preferences
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under the WSJT-X Menu and fill in various station details on the General panel.
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I recommend checking the 4 boxes under the Display heading and the first 4 boxes under
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the Behaviour heading.
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Next visit the Audio panel and select the Audio Codec you use to communicate between
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WSJT-X and your rig. There are so many audio interfaces available that it is not
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possible to give detailed advice on selection. If you have difficulties contact me.
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Note the location of the Save Directory. Decoded wave forms are located here.
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Look at the Reporting panel. If you check the "Prompt me" box, a logging panel will appear
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at the end of the QSO. Two log files are provided in Library/Application Support/WSJT-X.
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These are a simple wsjtx.log file and wsjtx_log.adi which is formatted for use with
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logging databases. The "File" menu bar items include a button "Open log directory"
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to open the log directory in Finder for you, ready for processing by any logging
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application you use.
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Finally, visit the Radio panel. WSJT-X is most effective when operated with CAT
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control. You will need to install the relevant Mac driver for your rig. This must
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be located in the device driver directory /dev. You should install your driver
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and then re-launch WSJT-X. Return to the the Radio panel in Preferences and in
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the "Serial port" panel select your driver from the list that is presented. If
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for some reason your driver is not shown, then insert the full name
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of your driver in the Serial Port panel. Such as: /dev/tty.PL2303-00002226 or
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whatever driver you have. The /dev/ prefix is mandatory. Set the relevant
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communication parameters as required by your transceiver and click "Test CAT" to
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check.
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WSJT-X needs the Mac clock to be accurate. Visit System Preferences > Date & Time
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and make sure that date and time are set automatically. The drop-down menu will
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normally offer you several time servers to choose from.
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On the Help menu, have a look at the new Online User's Guide for operational hints
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and tips.
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Please email me if you have problems.
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--- John G4KLA (g4kla@rmnjmn.co.uk)
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