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Changing the callsign in your Netrom software
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NETROM
Subject: How to CHANGE the CALLSIGN in the NETROM Software
THIS MOD IS NOT TO BE USED FOR PIRATING THE PRODUCT OF SOFTWARE 2000
OR ANY COPYRIGHT PRODUCT OR MATERIAL.
A bit of History...
When NETROM was first announced, most of the packet community realized that
it was another significant contribution to the growth of packet radio.
Contributions from the WA7MBL and W0RLI authors, the hundreds of digipeater
owners, sysops of countless PBBS's and "packeteers" who have DONATED their time
and efforts to packet, have been the backbone of packet growth.
Despite the many complaints from many amateurs over the cost of the NETROM
"contribution", Digipeater owners once again dug deep into their pockets and
DONATED their efforts to the cause of Packet Amateur Radio and NETROM Nodes
have been appearing everywhere.
Now with the emerging controversy over Nord-Link's "THENET" (a NETROM
"look-alike" being distributed FREE with source code for the Amateur community
to modify and improve), Mike Bush and Ron Weekes of Software 2000 (owners of
NETROM) have made harsh comments of theivery, etc.. towards Nord-Link for their
efforts. Amateurs who have viewed the code are questioning the validity of such
comments by Software 2000.
As a "packeteer" and a PBBS sysop, I can only view these comments as
"wimpering" over the possible loss to the "padding of their pockets"
Something I feel Amateur Packet should NOT be about! Software 2000 HAS made a
worthy addition to the world of packet, and they are deserving of credit in
that aspect, but with the current cost of the initial NETROM software, PLUS the
fact that a callsign change requires another COMPLETE purchase of that software,
and now this "blubbering and name-calling" over Nord-Links release of "THENET",
I can only conclude that Software 2000 is not interested in the "advancement of
the art and science of Amateur Radio" as much as they are interested in the
"advancement of the size of their wallet".
If all of the fore-mentioned contributors (i.e. PBBS authors, digi owners,
sysops, etc...) had this attitude, the packet network we ALL enjoy today would
not exist! Luckily, we still have hams who hold the advancement of the art and
the enjoyment of amateur radio above the almighty dollar.
The following file was passed to me recently, and "In the spirit of Amateur
Packet Radio and for the advancement of the Art and Science" I am passing this
on for widest possible distribution. I ask only that this file be distributed
in its entirety to preserve its intent.
Mark Marston KA1NNN Sysop CoCoPBBS
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How to CHANGE the CALLSIGN in the NETROM Software
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Remove the code from the following areas by setting values in these areas to
Hex $00.
Address (PC Tools Reference)
Hex: $ 0786 to $ 0797 Location 3 Lines 390 - 407
$ 2629 to $ 263A Location 19 Lines 41 - 58
$ 3A75 to $ 3A86 Location 29 Lines 117 - 134
$ 4BAF to $ 4BBC Location 37 Lines 431 - 444
Insert the following 18 bytes into location starting at $ 0786
(PC Tools Reference: Location 3 Line 390)
Address Insert (PC Tools Reference: Location 3)
Hex: $ 0786 $ 21 Line 390
$ 0787 $ xx <-- 1st Letter of Callsign in ASCII Hex Line 391
$ 0788 $ xx <-- 2nd Letter of Callsign in ASCII Hex Line 392
$ 0789 $ 22 Line 393
$ 078A $ 30 Line 394
$ 078B $ 82 Line 395
$ 078C $ 21 Line 396
$ 078D $ xx <-- 3rd Letter of Callsign in ASCII Hex Line 397
$ 078E $ xx <-- 4th Letter of Callsign in ASCII Hex Line 398
$ 078F $ 22 Line 399
$ 0790 $ 32 Line 400
$ 0791 $ 82 Line 401
$ 0792 $ 21 Line 402
$ 0793 $ xx <-- 5th Letter of Callsign in ASCII Hex Line 403
$ 0794 $ xx <-- 6th Letter of Callsign in ASCII Hex Line 404
$ 0795 $ 22 Line 405
$ 0796 $ 34 Line 406
$ 0797 $ 82 Line 407
If the Callsign is less than 6 characters, pad the remaining characters with
spaces which is a Hex $20.
Insert the following 5 bytes starting at Location $ 4BAF
(PC Tools Reference: Location 37 Line 431)
Address Insert (PC Tools Reference: Location 37)
Hex: $ 4BAF $ 3E Line 431
$ 4BB0 $ xx <-- SSID Code (Explained Below) Line 432
$ 4BB1 $ 32 Line 433
$ 4BB2 $ 36 Line 434
$ 4BB3 $ 82 Line 435
Place the Hex value for the desired SSID in Location $ 4BB0
from the chart below: (PC Tools Reference: Location 37 Line 432)
SSID Hex Value
0 $ 60
1 $ 62
2 $ 64
3 $ 66
4 $ 68
5 $ 6A
6 $ 6C
7 $ 6E
8 $ 70
9 $ 72
10 $ 74
11 $ 76
12 $ 78
13 $ 7A
14 $ 7C
15 $ 7E
This completes the modification for the change of NETROM callsign.
73's
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