Topics

1200 baud good …. 9600 baud no joy

Julie McGrew
 

A few days ago I setup my 2nd UDRC-II with an Rpi3. I added 2.2 k pull-down resistors to GPIO 12 and 23. Also added 4.7 k pull-up resistors to the sql lines on the din6 and the HD Sub-15 to 3.3 vdc. I did the now famous Basil N7NIX script install of the core and AX25 services. At first I tried doing Basil’s script after the compass install and following the NWDigital instructions of “sudo apt-get remove bluez pi-bluetooth and sudo apt-mark hold libasound2 libasound2-data” …. BUT doing that prevented Basil’s script from running properly. So I skipped the remove bluetooth and hold libasound steps in favor of Basil’s script. Did the install to the letter. And I ran ./set-udrc-din6.sh

Now …. using Winlink Express over my wireless network 1200 baud packet works fine from both the din6 and the HD Sub15 BUT 9600 no joy. Tested this with a couple different radios ….. and I’m baffled. I put serious training wheel settings on the 9600 baud setup and tried a couple known good nodes.

Here’s the tail -f /var/log/direwolf/direwolf.log results:
Jul 15 17:27:05 xi direwolf[541]: Ready to accept KISS client application on port 8001 ...
Jul 15 18:02:46 xi direwolf[541]: Connected to KISS client application ...
Jul 15 18:02:46 xi direwolf[541]: KISS protocol set Persistence = 128, port 1
Jul 15 18:02:46 xi direwolf[541]: KISS protocol set SlotTime = 20 (*10mS units = 200 mS), port 1
Jul 15 18:02:46 xi direwolf[541]: KISS protocol set TXDELAY = 50 (*10mS units = 500 mS), port 1
Jul 15 18:02:46 xi direwolf[541]: KISS protocol set FullDuplex = 0, port 1
Jul 15 18:02:46 xi direwolf[541]: [1L] AC0WN>N7RCF-10:(SABM cmd, p=1)
Jul 15 18:02:51 xi direwolf[541]: [1L] AC0WN>N7RCF-10:(SABM cmd, p=1)
Jul 15 18:02:53 xi direwolf[541]: [1L] AC0WN>N7RCF-10:(SABM cmd, p=1)
Jul 15 18:02:56 xi direwolf[541]: [1L] AC0WN>N7RCF-10:(SABM cmd, p=1)
Jul 15 18:03:01 xi direwolf[541]: Error reading KISS byte from client application. Closing connection.
Jul 15 18:03:02 xi direwolf[541]: Ready to accept KISS client application on port 8001 ...

The UDRC-II / Rpi3 rig queries the gateway node, gets a response …. but acts like it doesn’t hear the response … after the 4 attempts set in Winlink it gives up. The responses from the queried node are solid on the S meter.

Pretty sure I probably over looked something simple, or did something stupid …. both genuine possibilities … but I’d really appreciate a bit of help.

If anyone has an idea as to what direction my troubleshooting should follow I’d be most appreciative.

Many thanks to NW Digital Radio for their great products and support!

73,
julie
AC0WN