[nos-bbs] Setting up JNOS with a KPC-3 modem

[John Kristian]

The problem isn't clear to me. For what it's worth, here's what works 
for me, using a Kantronics KPC-3+. The AX.25 parameters are very 
conservative, I'm told.

Before JNOS starts, make sure the TNC is not in KISS mode. I run a shell 
command 'echo -e "\xc0\xff\xc0" > /dev/ttyS0'. This works for a 
Kantronics KPC-3+ or a Timewave PK-96.

In autoexec.nos:

attach asy ttyS0 - ax25 p144 4096 256 9600
ifconfig p144 description "p144 - 144 Mhz - 1200 baud"
ifconfig p144 ax25 bbscall w3xsc-1
ax25 digipeat p144 off
ifconfig p144 tcp mss  216
ifconfig p144 tcp window  432
arp eaves p144 on
source p144.local
# Pause a sec to make sure the TNCs have time to reset
pause 1
trace p144 0111
ax25 bcport p144 on
trace p144 0111 ./logs/p144.trace 1000

In p144.local:

# Serial interface
comm p144 "xxx"
comm p144 "INTFACE TERM"
comm p144 "ABAUD 9600"
comm p144 "XFLOW OFF"
comm p144 "START $00"
comm p144 "STOP $00"
comm p144 "XON $00"
comm p144 "XOFF $00"
comm p144 "TXFLOW OFF"
comm p144 "TRFLOW OFF"
comm p144 "MONITOR OFF"
# Radio interface
comm p144 "HBAUD 1200"
comm p144 "XMITOK ON"
comm p144 "CD SOFTWARE"
# Services
comm p144 "DIGIPEAT OFF"
comm p144 "NUMNODES 0"
comm p144 "USERS 0"
comm p144 "PBBS 0"
# 'PBBS 0' causes a soft reset if not already set to 0
pause 2
# Identification
comm p144 "MYCALL w3xsc-15"
comm p144 "MYPBBS w3xsc-14"
comm p144 "BTEXT SCCo ARES/RACES W3XSC BBS - Mountain View - Offline"
comm p144 "BEACON EVERY 15"
# AX.25 channel
comm p144 "PACLEN 0"
comm p144 "MAXFRAME 2"
comm p144 "RETRY 8"
comm p144 "FRACK 5"
comm p144 "SLOTTIME 10"
comm p144 "PERSIST 96"
comm p144 "DWAIT 0"
comm p144 "DIGIPEAT OFF"
comm p144 "TXDELAY 40"
comm p144 "CHECK 30"
# KISS mode
comm p144 "INTFACE KISS"
pause 1
comm p144 "RESET"
pause 2
# KISS Parameters
param p144 TxDelay 40
param p144 Persist 96
param p144 SlotTime 10
param p144 FullDup 0

Best regards,
John Kristian W6JMK


> On 3/2/21 5:15 AM, debiani386 via nos-bbs wrote:
>> Hi Everyone,
>>
>> I am working to set up JNOS with a KPC-3. I come from the PK232 world,
>> so im not too experienced with the KAM modems. The problem I am
>> running in to when connecting to any station is that jnos will connect
>> to the station, but not display any text. It does this no matter what
>> station I connect to.
>>
>> Here is the configuration I have in autoexec.nos for the KPC-3 modem:
>>
>> attach asy ttyS0 - ax25 vhf 576 256 1200
>> com tnc0 "HB 1200"???? # 1200baud RF
>> com tnc0 "int kiss"
>> com tnc0 "reset"
>>
>> I know on my PK232, I had to set 8bitconv to "On", however it is on by
>> default on the KPC.
>>
>> Is there anything else I need to configure on the KPC itself?
>>
>> Christopher Kelley
>> KG7UJH
>> *******