SLOWSCAN MULTI FTP 1.0
======================

Automatic multi-band SSTV uploader for SlowscanTV.com
Windows release - 3 October 2026
Developed for the SlowscanTV community by PD2F

OVERVIEW
--------
Slowscan Multi FTP can monitor up to THREE SSTV receive folders at the same
time while you enter the FTP server, username and password only ONCE.

Example:

  Channel 1   20m   C:\SSTV\20M
  Channel 2   40m   C:\SSTV\40M
  Channel 3   80m   C:\SSTV\80M

Each enabled channel has its own band, local source folder, upload history,
server image state and rolling image1.jpg ... image30.jpg archive.

All enabled channels share one FTP account.

SUPPORTED BAND PRESETS
----------------------
20m
40m
80m
10m
11m
2m
70cm
10GHz
ISS

SlowscanTV automatically provisions the standard remote band folders for
station FTP accounts. Empty folders remain invisible on the live site until
an image is actually uploaded.

ROLLING SERVER ARCHIVE
----------------------
Each band keeps its own rolling archive:

image1.jpg  = newest image
image30.jpg = oldest image

A full archive remains at exactly 30 images. Every new upload becomes
image1.jpg and the older images move down one position.

The FTP engine verifies rename and delete results and can recover when the
server returns an interrupted or misleading FTP response.

LOCAL FILE HANDLING
-------------------
After a confirmed successful upload you can choose:

Keep
    Leave the local source image in place.

Archive
    Move the local source image to one archive root. Multi FTP automatically
    creates a separate subfolder for every band, for example:

      C:\SSTV\Archives\20m
      C:\SSTV\Archives\40m
      C:\SSTV\Archives\80m

Delete
    Delete the local source image after the upload has been confirmed.

Archive and Delete are never performed before a successful confirmed upload.

INSTALLATION
------------
1. Extract the ZIP file.
2. Run:
      INSTALL Slowscan Multi FTP 1.0.cmd
3. Keep the default installation folder or choose another folder.
4. Start Slowscan Multi FTP.
5. Open Settings.
6. Enter the FTP server, username and password once.
7. Enable one, two or three channels.
8. Choose the band and local SSTV folder for every enabled channel.
9. Choose Keep, Archive or Delete.
10. Click Test all.
11. Save the settings.
12. Press Start.

Uploading never starts automatically. You decide when to press Start.

MULTI-BAND SAFETY
-----------------
The enabled bands are processed sequentially. Multi FTP never starts a second
band scan while another band is still performing an FTP rolling operation.

Settings remain visible while the program is running, but changing them is
blocked until you press Stop. This prevents a band or local source folder from
changing in the middle of an upload.

Do not run Slowscan FTP 2.0 and Slowscan Multi FTP at the same time for the
same station account.

PROVEN RELEASE WORKFLOW
-----------------------
The release engine was tested with:
- three active bands using one FTP account;
- a full 20m server archive at 30/30;
- repeated new uploads while remaining exactly 30/30;
- partially filled 40m and 80m archives;
- queued images processed oldest first;
- local Archive handling in separate band folders;
- FTP rename verification when a server response was interrupted;
- protection against overlapping multi-band scan cycles.

FILES
-----
INSTALL Slowscan Multi FTP 1.0.cmd
    Graphical installer launcher.

Install-Slowscan-Multi-FTP.ps1
    Installer used by the launcher.

Slowscan-Multi-FTP.ps1
    Main program.

Start-Slowscan-Multi-FTP.ps1
    Bootstrap launcher.

SlowscanMultiFTP.vbs
    Hidden-window launcher used by shortcuts.

Uninstall-Slowscan-Multi-FTP.cmd
    Removes the installed program. Saved Multi FTP settings and logs are kept.

SlowscanFTP.ico
    Application icon.

SlowscanTV.com
PD2F
