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5. Configuration

This panel is part of the QSSTV receive window Options menu. This lets you setup the QSSTV operation settings. All settings are saved to the qsstv.conf file located in the home directory. You will need to setup a new configfile if you run the program as a different user (or simply copy an existing one in your new home directory). You can click on the different tabs to switch to the different tab-windows. Note: All settings will be saved on exiting QSSTV (including the active settings in the receive and transmit window).

5.1 General

  1. RX Image

    This is the path to the Receive image folder. You can browse to the folder and then save the path by clicking <OK> in the browse window.

    default: none

  2. TX Image

    This is the path to the Transmit image folder. You can browse to the folder and then save the path by clicking <OK> in the browse window.

    default: none

  3. Audio Records

    Only usefull in debugging mode . You can browse to the folder and then save the path by clicking <OK> in the browse window.

    default: none

  4. Documentation

    This is the path to the folder where the user guide is. You can browse to the folder and then save the path by clicking <OK> in the browse window.

    default: /usr/local/doc/qsstv/

  5. Default Image

    This button lets you select the format that you can save the image files to (PNG, BMP, XBM,JPEG ...)

    Note: You cannot select the GIF-format due to patent restrictions. GIF is not a free format. If you enabled GIF read support in Qt, then you will be able to import GIF-images.

    default: PNG

  6. Timestamp uses UTC

    When on time will be UTC otherwise localtime

    default: off

5.2 Thumbnails

This lets you select the path to 6 default thumbnail pictures that get loaded into QSSTV's Thumbnail window at startup. These entries are reserved and will not be overwritten by received images. Enter the full path to the file or use the Browse button to select one.

default: none

5.3 Interfaces

  1. The clocks on soundcards are not very accurate. You can select the "true" frequency with the following options. If the soundcard uses the same clocksource for receive and transmit, then the RX and TX clock settings will be the same.
  2. RX Clock Frequency

    This setting controls the video receive sample clock frequency rate. It can also be adjusted using the SlantAdjust option.

    default: 8000 Hz

  3. TX Clock Frequency

    This setting controls the video transmit sample clock frequency rate. This value will also be changed when you use the SlantAdjust option.

    default: 8000 Hz

  4. Audio Device

    This is the default Linux audio device that QSSTV uses. Most of the time it is a symbolic link to /dev/dsp0. If you have more than one soundcard, use the correct device (e.g. /devdsp1).

    default: /dev/dsp

  5. Serial Port

    This is the default Linux serial port device, that is used to key the radios PTT circuit. (remember ttyS0 is equivalent to com1 under DOS, ttyS1 is equivalent to com2).

    default: /dev/ttyS1

5.4 CW

  1. Tone

    Set the frequency of the CW transmitting tone from 400 Hz to 2300 Hz.

    default: 1200 Hz

  2. Words Per Minute

    Set the speed at which the CW is sent from 4 to 30 WPM.

    default: 12

  3. Text to send

    Holds the text you wish to send via CW. Such as your callsign.

    default: qsstv

5.5 Banners

Lets you select the path to the 4 default banner pictures that are used by the QSSTV banner function during transmission of pictures. The images used by the banner function are normally 320 x 16 in size. You can use a different size for P3..P7 modes (i.e. 640x20).

5.6 Repeater

  1. Enable Repeater

    Enable repeater at startup images that are automatically sent when the repeater is idle for "image interval" minutes

    default: off

  2. Image 1..4

    If you only use one entry, then the interval we be 4 times "image interval". I suggest you fill in all 4 entries. You can specify 4 times the same file.

    default: none

  3. Repeater TX mode

    TX mode used when automatically sending pictures. The pictures are sent when the repeater is idle for more than "image interval" minutes.

    default: Martin 1

  4. Image Interval

    Interval time (i.e. idle time) in minutes

    default: 5 min

  5. Acknowledge

    Text sent in CW in response to a 1750 Hz toneburst.

    default K

  6. Identification

    Holds the text to be overlayed on the transmitted image.

    default: Repeater

5.7 FTP

FTP is used to automatically transfer images to a local or remote computer. When an image is received and FTP is enabled then QSSTV will transmit the image using the FTP protocol. QSSTV will login and use the specified password. This has been developed primarily for use with java-applets on webservers, this way one can publish sstv pictures in realtime on the web.

  1. Enable FTP

    Enable FTP transfer when image is received

    default: off

  2. Remote Hostname Use dotted notation (e.g.192.168.1.14) or hostname of the computer to connect to.

    default: none

  3. Remote Directory

    The relative path to the directoy (e.g. /incoming or /pub/sstvcam)

    default: none

  4. FTP loginname

    The loginname on the remote computer

    default: anonymous

  5. FTP password

    The password on the remote computer

    default: user@net

  6. FTP Filename> If left blank, the filename on the remote computer will be in a standard format (e.g. M1_YYYYMMDD_mm.jpeg). If you fill in a name, the file will be first transferred to the computer, using the standard format, and then renamed to the specified name.

    default: none

  7. Default Image Format

    Image format to be used when transferring files in ftp

    default: jpeg

Note: Test with the standard ftp command under Linux if you can transfer a file. Suppose we want to send the file im.jpg to the server my.computer (hostname) to the folder /incoming using your_loginname and your_password
>ftp my.computer
Name(my.computer:your_login_name): your_loginname
331 Guest login OK, send your complete e-mail address as password
Password:your_password
230 login ok
Remote system type is unix
Using binary mode to transfer files.
ftp> cd /incoming
250 CWD command successful
ftp>put im.jpg
local: im.jpg remote: im.jpg
200 Port command successful
150 FILE: im.jpg
225 Transfer complete
1392 bytes sent in 0.00028 secs (4.9e+03 Kbytes/sec)

If you see this (or something similar) FTP from whithin QSSTV should work. If you see errors, try to fix them first, before trying to use it in QSSTV (because you have more control over it and you can tun on the verbose mode in ftp).

5.8 FAX

You can predefine certain type of faxes (e.g. weatherfax) and give them a name. There is a selection button in the receive window to select a predefined fax-type.

Note:FAX Sync Position Pressing the left mouse button on the fax image (even while receiving) will rotate horizontally, so that the image will start from there.

  1. Name

    Name of the fax-type (choose whatever you want)

    default: fax[1..4]

  2. lpm

    Lines Per Minutes spinbox

    default: 120

  3. ioc

    Index of Cooperation spinbox: this defines the ratio width to height

    default: 288

  4. Colors

    The number of gray-levels to be used

    default: 256

  5. Lines

    Maximum number of lines to be recorded.

    default: 800

  6. Inverse Polarity

    This enables the detection of inverted phasing signals. (i.e. 5% black 95% white)

    default: NO


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