[CQ-Contest] V47T dual pileup audio

[Jukka Klemola]

I was asked why I use sidetone/monitor at all.

First, when designing the system, I wanted to be able to listen to my own
transmitted signal for any keying issues. You know, dot/dash/silent ratios
may vary when using computer keying.
Also, I wanted to be able to monitor if I had pressed the correct F key.

Second, when doing the first experiments, I noticed I want to be able to
follow my transmission to know when the PTT is free for the other radio to
time better the enter or F key pressing.

Now, after some contests I have noticed I need to be able to tell which
radio the audio comes from to recognize the keyboard I should be typing.

There may be other reasons, too, but these are the biggest ones to me.


To go deeper into audio switching, the story gets increasingly complex.
There are many ways to handle the audio switching.
One way is to have no switching at all.

In case someone wants to think how to arrange the audio switching, the key
for the operator is he must be able to do any required task as easily and
simply as possible.
The operator gets into cognitively challenged state after some 30+ hours
into the contest.
The logging/controlling system must help the operator to cope with the
complexity when fatigue comes in between the headphones.
The fatigue reaches higher levels than ever experienced with SO1R or
Run+S&P concepts.

This year CQ WW CW, I was nearly knocked out already after the first 12
hours.
One of my fatigue contributors was my audio switching device I had with me
atop OH0V was too clumsy to use.


73,
Jukka OH6LI.

PS. another article on fatigue:
http://abc7ny.com/health/abc-news-staffer-tests-sleep-deprivation-effects-by-staying-up-50-hours/1104119/



2015-12-04 23:05 GMT+02:00 Jukka Klemola <jpklemola at gmail.com>:

> I did a short audio clip for those interested:
>
>
> https://www.dropbox.com/s/6jv0dz2uxnc9nxt/OH0V%202%20Radio%202%20Cmptr%20audio%20sample.%20op%20OH6LI.wav?dl=0
>
>
> Log:
> QSO:  7061 CW 2015-11-29 1516 OH0V          599 15     RA9Y          599
> 18
> QSO: 14055 CW 2015-11-29 1517 OH0V          599 15     EA1AF         599
> 14
> QSO: 14055 CW 2015-11-29 1517 OH0V          599 15     F6AUS         599
> 14
> QSO: 14055 CW 2015-11-29 1517 OH0V          599 15     G3RTU         599
> 14
> QSO:  7061 CW 2015-11-29 1517 OH0V          599 15     JA9FAI        599
> 25
> QSO: 14055 CW 2015-11-29 1517 OH0V          599 15     KA1IOR        599
> 05
> QSO:  7061 CW 2015-11-29 1518 OH0V          599 15     RA0R          599
> 18
> QSO:  7061 CW 2015-11-29 1518 OH0V          599 15     UR3LM         599
> 16
> QSO: 14055 CW 2015-11-29 1518 OH0V          599 15     WM0CW         599
> 04
> QSO:  7061 CW 2015-11-29 1518 OH0V          599 15     RK1NA         599
> 16
> QSO: 14055 CW 2015-11-29 1518 OH0V          599 15     SQ5LTL        599
> 15
> QSO:  7061 CW 2015-11-29 1518 OH0V          599 15     R3VL          599
> 16
> QSO: 14055 CW 2015-11-29 1518 OH0V          599 15     EI6JK         599
> 14
> QSO:  7061 CW 2015-11-29 1519 OH0V          599 15     UP2F          599
> 17
> QSO: 14055 CW 2015-11-29 1519 OH0V          599 15     K9DY          599
> 05
> QSO:  7061 CW 2015-11-29 1519 OH0V          599 15     OK2LF         599
> 15
> QSO:  7061 CW 2015-11-29 1519 OH0V          599 15     DK7OG         599
> 14
>
>
> I can answer any questions about how the station is set.
>
> I used N1MM, version 13.10.01 on both computers.
> LAN connection over a LAN box. No internet connection to keep things
> simple.
> Audacity on a separate computer to record the audios.
>
> I had partially similar technical issues as Jose.
> I was experimenting too much so it affected my operating.
>
> CQ WW CW was a lot of Fun!!
>
>
> 73,
> Jukka OH6LI
>
> 2015-12-04 20:54 GMT+02:00 Andy Blank <andyn2nt at gmail.com>:
>
>> Some guys were asking about audio from dual pileups, and I was able to
>> upload an example from my operation in CQWW along with the log segment.
>>
>> Here are the links to the 20 min snippet, of 103 qsos which is over 300/hr
>> rate.
>> Not as fast as ZF2MJ but good for me :)
>> The method was the same, 2 computers. Audio was left and right, no attempt
>> to isolate.
>> For some reason the channels seem to be combined on the recording, but
>> real
>> time they were separated left and right by radio. The recording was made
>> using WinTest built in recorder.
>>
>> Audio here:
>>
>> https://www.dropbox.com/s/a3o04fq72cm4b0s/W1FM%4015CW.MP3?dl=0
>>
>> Log excerpt here:
>>
>> https://www.dropbox.com/s/k44usx7tilcp7q4/QSO.txt?dl=0
>>
>>
>>
>> 73, Andy N2NT/V47T
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>
>