Haines Brown | 19 Jun 15:54 2016
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fldigi setup question

I'm a newbie with a very simple question, and so hope folks will be
tolerant.

I'm running an Elecraft K3 through a SignaLink USB to fldigi
interface, and aim to operate PSK31 on 20 meters.

My transmitter is tuned to 14.070.15. In fldigi, I selected Op-Mode
BPSK31. In band list I select 14070.000 USB BPSK-31. I set the Xcvr Freq
to 14070.150.

However, the waterfall ranges between about 14070.184 to 14073.014. This
is outside the PKS31 20 meter band. All I see is vertical lines
(carriers?) 100 Hz apart, but no signals. How do I move the waterfall to
the proper frequency range?

Haines Brown KB1GRM
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Stewart, Jennifer | 17 Jun 16:53 2016

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Basil Gunn | 16 Jun 18:42 2016

PATCH 1/1] AX.25: Close socket connection on session completion

A socket connection made in ax.25 is not closed when session is
completed.  The heartbeat timer is stopped prematurely and this is
where the socket gets closed. Allow heatbeat timer to run to close
socket. Symptom occurs in kernels >= 4.2.0

Originally sent 6/15/2016. Resend with distribution list matching
scripts/maintainer.pl output.

Signed-off-by: Basil Gunn <basil <at> pacabunga.com>
---
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index fbd0acf..2fdebab 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
 <at>  <at>  -976,7 +976,8  <at>  <at>  static int ax25_release(struct socket *sock)
 			release_sock(sk);
 			ax25_disconnect(ax25, 0);
 			lock_sock(sk);
-			ax25_destroy_socket(ax25);
+			if (!sock_flag(ax25->sk, SOCK_DESTROY))
+				ax25_destroy_socket(ax25);
 			break;

 		case AX25_STATE_3:
diff --git a/net/ax25/ax25_ds_timer.c b/net/ax25/ax25_ds_timer.c
index 951cd57..5237dff 100644
--- a/net/ax25/ax25_ds_timer.c
+++ b/net/ax25/ax25_ds_timer.c
 <at>  <at>  -102,6 +102,7  <at>  <at>  void ax25_ds_heartbeat_expiry(ax25_cb *ax25)
 	switch (ax25->state) {
(Continue reading)

Basil Gunn | 15 Jun 21:20 2016

[PATCH 1/1] AX.25: Close socket connection on session completion

A socket connection made in ax.25 is not closed when session is
completed.  The heartbeat timer is stopped prematurely and this is
where the socket gets closed. Allow heatbeat timer to run to close
socket. Symptom occurs in kernels >= 4.2.0

Signed-off-by: Basil Gunn <basil <at> pacabunga.com>
---
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index fbd0acf..2fdebab 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
 <at>  <at>  -976,7 +976,8  <at>  <at>  static int ax25_release(struct socket *sock)
 			release_sock(sk);
 			ax25_disconnect(ax25, 0);
 			lock_sock(sk);
-			ax25_destroy_socket(ax25);
+			if (!sock_flag(ax25->sk, SOCK_DESTROY))
+				ax25_destroy_socket(ax25);
 			break;

 		case AX25_STATE_3:
diff --git a/net/ax25/ax25_ds_timer.c b/net/ax25/ax25_ds_timer.c
index 951cd57..5237dff 100644
--- a/net/ax25/ax25_ds_timer.c
+++ b/net/ax25/ax25_ds_timer.c
 <at>  <at>  -102,6 +102,7  <at>  <at>  void ax25_ds_heartbeat_expiry(ax25_cb *ax25)
 	switch (ax25->state) {

 	case AX25_STATE_0:
+	case AX25_STATE_2:
(Continue reading)

Basil Gunn | 3 Jun 22:16 2016

Re: Can only connect to RMS gateway once

> Have you tried to disable smp (in grub, boot the kernel with the
> cmdline option nosmp)? Did then the problem still occur?

I disabled SMP and the problem of socket remains open after disconnect
still occurs with kernels >= 4.2.

cat /boot/cmdline.txt
dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1
root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes
maxcpus=0 rootwait

I built a 4.1.21 kernel from the raspbian repo
https://github.com/raspberrypi/linux/tree/rpi-4.1.y

and the problem does NOT exist with that kernel.

I built a 4.2.8 kernel from the raspbian repo
https://github.com/raspberrypi/linux/tree/rpi-4.2.y

and the problem DOES exist with that kernel.
Showing connection listening after final disconnect.

Active AX.25 sockets
Dest       Source     Device  State        Vr/Vs    Send-Q  Recv-Q
N7NIX-0    N7NIX-11   ax0     LISTENING    001/004  0       0
*          N7NIX-11   ax0     LISTENING    000/000  0       0

/Basil n7nix
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(Continue reading)

Basil Gunn | 2 Jun 21:46 2016

Can only connect to RMS gateway once

This problem was was originally described on the Linux RMS-Gateway
group in March.

I've done a little investigation on the 'Can only connect to gateway
once' problem. RMS Gateway is definitely broken when running on
kernels after 4.1.6 or so. My 4.1.6 kernel didn't exhibit symptoms but
as mentioned previously a 4.2.0 kernel didn't work. My 4.4.10 kernel
doesn't work as well and I'm assuming the problem persists in the
latest kernels.

Using 'netstat --ax25' this is the expected reponse. You can see the
connection in operation between N7NIX-0 & N7NIX-11.

Active AX.25 sockets
Dest       Source     Device  State        Vr/Vs    Send-Q  Recv-Q
N7NIX-0    N7NIX-11   ax0     ESTABLISHED  000/001  2112    0
*          N7NIX-11   ax0     LISTENING    000/000  0       0

After the connection the sockect for N7NIX-0 should go away as shown
below:

Active AX.25 sockets
Dest       Source     Device  State        Vr/Vs    Send-Q  Recv-Q
*          N7NIX-11   ax0     LISTENING    000/000  0       0

On kernels newer then 4.1.6 the N7NIX-0 socket connection lingers
around and N7NIX can no longer connect to N7NIX-11.

Active AX.25 sockets
Dest       Source     Device  State        Vr/Vs    Send-Q  Recv-Q
(Continue reading)

folkert | 31 May 19:58 2016
Gravatar

TAP device & ax25 call

Hi,

While trying to use tap-devices for ax.25 I noticed some issues.
Biggest issue being that I could not get it to work. Now some guy on
stackoverflow dug a bit further and apparently something goes wrong
with the ssid.
http://stackoverflow.com/questions/22465138/creating-a-tun-network-device-with-ax-25-encapsulation/37534385#37534385
I thought you may wanted to know this.
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Miroslav Skoric | 25 May 00:49 2016

RIGblaster P&P + FM handies ?

Hi,

I wonder if there is available some cable/adapter that can link together 
a VHF handy talkie ADI AF-16 (Taiwan made) that has MIC & SPK/PTT 
'stereo' connectors, to a West Mountain's RIGblaster Plug & Play 
interface that has a 6-pin DIN connector for various HF radios.

(I even do not know if RIGblaster P&P could be used with portable 
VHF/UHF FM transceivers, however I am very interested in experimenting 
with such combination, and a laptop with some packet radio software 
running via a sound card.)

Regards, 73

Misko YT7MPB
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hi | 19 May 07:51 2016
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salve

hello
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Suazo, Francelia | 5 May 12:56 2016

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我的相片在 | 2 May 07:59 2016
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