[pskmail] Re: Help me to understand this ...

  • From: "Rein Couperus" <rein@xxxxxxxxxxxx>
  • To: pskmail@xxxxxxxxxxxxx
  • Date: Sun, 20 Nov 2011 09:29:38 +0100 (CET)

Robert,

To answer the first question, yes, the client is asking the server to use PSK500, 
meaning he has set a wrong default mode.
This is a problem, and I will try to fix that for the server next week.

The question is, how we should react to this request, one option is to send a reject frame 
with a proper message like "mode PSk500 not available here".

The second question, why is the server going to MFSK32?
This is definitely wrong, as MFSK is not in the requested mode table.
Maybe the client was sending an MFSK32 rsid?
I will try to reproduce the error here...

Which server version are you running?

Rein PA0R

.

Hi
within last few days I had few stations connecting to my server. I see a lot of mode switch and long empty communications. Below is a copy from my log. Tell me please what is going on. Few things I think I understand :


I: ParseMode: ARQ new modem set to PSK250
I: apply: RSID: PSK250R @ 991 Hz
23:52 UTC Nov-19-2011: > Connect: N2TIF:1024 KB2PNM:24 776593d   Is  that wrong request from Client that is not set up for US modes?? Request for mode 7 which is PSK500 - Am I correct?

Final connect status:  Asymmetric link:1 , tx mode: PSK250R , rx mode: MFSK32  Why receive is on MFSK32? Is that base on S/N ratio?
23:52 UTC Nov-19-2011: Added N2TIF to link list
N2TIF->KB2PNM
23:52 UTC Nov-19-2011: Send>APRS-IS:KB2PNM>PSKAPR,TCPIP*::PSKAPR   :GATING N2TIF

I: ParseMode: ARQ new modem set to PSK250R
MAXIDLE=13.4175416327812
I: ParseMode: ARQ new modem set to MFSK32
4 acks left...
23:52 UTC Nov-19-2011: Added N2TIF to link list
N2TIF->KB2PNM
23:52 UTC Nov-19-2011: Send>APRS-IS:KB2PNM>PSKAPR,TCPIP*::PSKAPR   :GATING N2TIF

I: ParseMode: ARQ new modem set to PSK250R
MAXIDLE=21.6428571428571
I: ParseMode: ARQ new modem set to MFSK32
3 acks left...
23:53 UTC Nov-19-2011: Added N2TIF to link list
N2TIF->KB2PNM
23:53 UTC Nov-19-2011: Send>APRS-IS:KB2PNM>PSKAPR,TCPIP*::PSKAPR   :GATING N2TIF

I: ParseMode: ARQ new modem set to PSK500R
MAXIDLE=21.6428571428571
I: ParseMode: ARQ new modem set to MFSK32
2 acks left...
23:53 UTC Nov-19-2011: Added N2TIF to link list
N2TIF->KB2PNM
23:53 UTC Nov-19-2011: Send>APRS-IS:KB2PNM>PSKAPR,TCPIP*::PSKAPR   :GATING N2TIF

I: ParseMode: ARQ new modem set to PSK250R
MAXIDLE=21.6428571428571
I: ParseMode: ARQ new modem set to MFSK32
1 acks left...
23:54 UTC Nov-19-2011: Added N2TIF to link list
N2TIF->KB2PNM
23:54 UTC Nov-19-2011: Send>APRS-IS:KB2PNM>PSKAPR,TCPIP*::PSKAPR   :GATING N2TIF

I: ParseMode: ARQ new modem set to PSK125
MAXIDLE=21.6428571428571
I: ParseMode: ARQ new modem set to MFSK32
0 acks left...
Aborting connect
~ABORTSEND
23:55 UTC Nov-19-2011: Call N2TIF o.k.
23:55 UTC Nov-19-2011: Connected to N2TIF
Stationname =N2TIF
Mail count =-1
23:55 UTC Nov-19-2011:
Listening to the radio



At the same time on Fldigi display I see unreadable text  transmitted from N2TIF. I think we have a situation that Server - Client try to talk to each other in different mode. Is that the case??

Best regards
de KB2PNM


 

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