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Re: LF: WSQ2 new version uploaded

To: [email protected]
Subject: Re: LF: WSQ2 new version uploaded
From: wolf_dl4yhf <[email protected]>
Date: Tue, 11 Mar 2014 18:51:44 +0100
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Hi Domenico,

At the moment, there is only a subtle difference in the way the center frequency is measured (it uses interpolation between the center bin and its neighbours). The difference is neglectable unless the tones fall 'right between two FFT bins'. But there will be further refinements soon. When finished, I will document them in my modified sourcecodes (the current one doesn't have the interpolation algorithm enabled).
Actually, as tested by DL3ZID recently, there seem to be cases where the interpolation *degrades* the decoding process, for reasons I don't fully understand yet ... maybe a bug in my algorithm, or maybe a problem with the principle itself :o)

More later,
  73,   Wolf .




Am 10.03.2014 23:27, schrieb ing.lindo:
Good evening Wolf and all,
Wolf, can you briefly explain differencies in algorithms of  ZL2AFP and DL4YHF decoders?
Thanks in advance.

73 Domenico, iz7slz

Sent by Saturn 3S.90 with okitex

-------- Original message --------
From: wolf_dl4yhf
Date:09/03/2014 11:49 PM (GMT+01:00)
To: [email protected]
Subject: Re: LF: WSQ2 new version uploaded

Hi Michel,

Ok, thanks for testing, and nice to hear the synthesizer 'drive' works properly again.


You wrote:


- According to me, sentence "Select another comport to turn off PTT" is wrong and confusing. 


Maybe the intention is to emphasize 'after selecting another COM port, the PTT is initally off" because that's what the function calls in the PTT dialog window, after "OK", are doing.

The new serial port, if any, is not saved, therefore the correct port number has to be set in setup.txt 
The serial port is opened at launch time if the Synthesizer checkbox  is already checked. Sometimes it's better to 
open the port just before outputing data and release it when done, sometimes not  ( ie bluetooth serial port)

So we will have the option "leave the serial port open" or "close after switching from TX to RX" added in the configuration.
IMHO, 'setup.txt' should describe the synthesizer hardware but not the port to which it is connected (on a particular machine). Here, for example, windows has the bad habit to assign different COM port numbers for the same hardware (an old 'Prolific' USB<->RS-232 adapter), depending into which USB port / hub / etc it is plugged : "COM4 today, COM5 tomorrow" :o)

73,
  Wolf .


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