APRS Digipeatersoftware DIGI_NED
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here some files are described as they are of inportance for DIGIFLOP.


This file holds the instructions to install and use DIGIFLOP.


About this software:

The enclosed DIGIFLOP.EXE version 1.3 is a self extracting 1.44 Mb disk image, build with a Freeware program called "DI" which can be found on the disk after creation. Use a fresh formatted 1.44 Mb floppy for this (format a: /U)!

After creation of the disk you will have a bootable DISK with a complete DIGI_NED digipeater. As DOS Caldera DR-DOS 7.03 is used; this version of DOS is free for non commercial personal use. Read LICENSE.TXT, please respect Caldera's License. Also read README.TXT on the disk.

After booting the first time a configuration screen appears. You can fill this in. Navigation is done with TAB and Shift-TAB and function keys. F3 gives help on a field. You can choose 16 different predefined configurations.

You can also make customized floppies by editing DNCONFIG.INI and making a matching "RUN.BAT" (in the DIGI_NED directory). You can make your own disk-image with the included disk image tool.

After configuration the DIGI_NED files are copied to Ramdisk, this is also done after a reboot. For this to work your PC shall be at least a 286 with 1 Mb memory.

Don't be alarmed if files seem to be copied to "C:", it just means that the Ramdisk was created as "C:" because your harddisk was not recognized; Caldera DR-DOS does not understand FAT32 disks. If you have many harddisks and even use drive "F:" then you should be carefull, the floppy checks from "F:" down to "C:" to find the ramdisk. If not sure make a backup copy of your "\Autoexec.bat", "\Config.sys" and "\Command.com" files, that are most likely the only ones that are overwritten should the software use your harddisk instead of the ramdisk.

This floppy includes a new "AX25_MAC" driver. It is possible to use a TH-D7, TM-D700 or TS-2000 as intelligent digipeater. A limitiation is that the TH-D7 has to understand KISS like the TH-D7E V2.0 does. The US TH-D7's do not seem to work. As far as I know the TM-D700 and TS-2000 should not give a problem with KISS. Note that the serial line speed is 9600 baud for the TH-D7, TM-D700 and TS-2000; otherwise it will not work! During operation you may notice that the TH-D7/TMD700/TS2000 is reinitialized. There are 2 possible reasons for this:

  • The TNC hangs and does not send any RX data anymore, this is the build-in recovery procedure
  • There is just no RX data and the internal watchdog runs off, this happens when there is low traffic. Initialisation takes about 3 seconds and since it is low traffic anyway this is I think acceptable (and there is just no other option...).

There is no sofisticated way to know if the TNC hangs so the drives watches if still data is received after it did a transmission. The away the driver is now it was possible to run for one day without any TNC hangup (disabled the watchdog and looked if it kept running). Watchdog time is 30 seconds after the last transmission.

If you use KISS, then the software will put the TNC in KISS mode. It will try different methods; first the method for the TheFirmware/WA8DED, then "KISS = ON" followed by "RESTART" and finaly "KISS ON" followed by "RESET". Be sure not the switch on the TNC on half way during this process as "RESET" will wipe all information in the TAPR TNC-2. In the normal sequence this is not
a problem since by the time the RESET is reached the TNC is already in KISS and ignores it.

If you TNC remembers KISS mode and you want to get it out of KISS again, use:

.\kissinit -PCOM1 -K

(for COM1, for documentation of KISSINIT look in the KISS directory on the floppy disk)

If you want to run the configurator again, remove DNCONFIG.BAT from the root directory of the floppy and reboot.

This is as out-of-the-box it gets! Good luck!

Kind regards,
Henk - PE1DNN


Is the executeable that holds the image file of the floppy-disk that holds the OS (Caledera DR-DOS) and DIGI_NED.


This file holds the instructions to install and use DIGIFLOP.


Information about this disk:

This bootable DISK uses DR-DOS 7.03. This version of DOS is free for non commercial personal use. Read LICENSE.TXT for the Caldera DR-DOS License details. Only the needed files are stored on this diskette. The complete package was downloaded via http://www.drdos.net/ also available at http://www.drdos.org/. Official web site http://www.drdos.com/.

The files in directory DIGI_NED are covered by the GNU General Public License, see COPYING for details.

Sysop specific configuration infomation, complete the following steps:

  1. BOOT form the floppy, if DIGI_NED is not configured a configuration program appears.
  2. If none of the predefined configurations matches your hardware then manually edit run.bat and specify the correct parameters at the startup of ax25_mac. For details read ax25_mac.txt (this is the hardest part, to get the correct configuration for your hardware). You may want to have a look at the preconfigured examples to get an idea how to change it for your hardware.
  3. Optionally edit ax25_mac.ini and specify the TX delay for each port. Initially they are fool-prove defaults with a 300ms TX delay, but it is better to adjust it for your TRX for better performance and less QRM.
  4. Optionally edit digi_id.ini and modify the station identification. This is only for legal station identification and is only transmitted in the stations direct area. The configurator modified this file.
  5. Optionally edit digibcon.ini and modify the APRS beacon for the station. The configurator created this file with a sensible default. Do not make the position part of the beacon larger or shorter in length, the positions of the characters are important. Later when you have the digi running review the beacon with an APRS client program to see if it shows up correctly. For information about APRS formats read the APRS specification, available at http://www.tapr.org/
  6. Optionally edit digi_ned.ini. This is a large file which controls how packets are digipeated. The configurator created this file with your configuration data and a sensible default for the rules.
  7. When done, insert the floppy in the target PC, reboot from it and you are in business!

If you want to reactivate the configurator then either create a new floppy or delete DNCONFIG.BAT in the root directory. Note that the configurator overwrites DIGI_NED.INI, DIGIBCON.INI and DIGI_ID.INI.

Special Sysop queries (only by calls configured as digi owner):

Query Purpose
?SETDATE Clear all MHeard entries for port 2
?SETTIME Used to remotely adjust the time
!clear Completly clear the MHeard list
!clear 2 Clear all MHeard entries for port 2
!clear pe1dnn-7 Clear call PE1DNN-7 from the list (can be used to wipe out bogus entries)

This is as out-of-the-box it gets! Good luck!

Kind regards,

Henk - PE1DNN

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