[Elecraft] K3 and recording SSB & CW

[hank k8dd]

N1MM records QSO's where Writelog records continuously.

Using N1MM in the NA QSO Party, for  424 QSOs, I used 500 Mb.
A 25 second QSO took 1,101 KB Audio Format PCM 11.025, 16 Bit, Stereo.

With Writelog one hour (3582.78 seconds) is 6,998 KB Audio format MPEG 
Layer-3 16 kBits/s, 11,025 Hz, Mono.

Quite possibly I could have cut down the audio format to something like PCM 
8 kHz, 8 Bit, Mono 7 kb/sec.   That would have saved about 4,000 KB.  But 
the 8 kHz quality was a fair amount less quality than the 11025 Hz in WPX 
SSB using an IC-746 with fixed line output.

So I guess it depends on which program you are using to record, how much 
quality you want and how big your hard drive is!

73    Hank    K8DD



----- Original Message ----- 
From: "David Cutter" <d.cutter at ntlworld.com>
To: "Elecraft" <elecraft at mailman.qth.net>
Cc: "Elecraft Reflector" <elecraft at mailman.qth.net>
Sent: Saturday, August 16, 2008 12:07 PM
Subject: Re: [Elecraft] K3 and recording SSB & CW


> Is there an optimum setting for digital recording (bit rate?) that will 
> maximise memory capacity?  I presume that ssb and cw being narrow audio 
> need <<than hi fi.   Has anyone done the sums to record a 48 hour contest? 
> This would be brilliant for training.
>
> Even better to record a segment of the band that can be replayed using LP 
> PAN etc.  What memory capacity would be needed for that and is it 
> practical to do?
>
> David
> G3UNA
>
> ----- Original Message ----- 
> From: "Jeff Kinzli N6GQ" <jeff at N6GQ.com>
> To: <w3fpr at arrl.net>
> Cc: "Elecraft Reflector" <elecraft at mailman.qth.net>
> Sent: Saturday, August 16, 2008 4:51 AM
> Subject: Re: [Elecraft] K3 and recording SSB
>
>
>> Thanks guys...I have Audacity, and that's what I was thinking of using
>> unless someone had a better idea.
>>
>> I'm still wondering if there's a way to get the monitor audio out the
>> line-out output from the rear. It would be there out the headphone
>> jack but as K8DD pointed out, that is going to be controlled by the AF
>> Gain, which isn't optimal.
>>
>> Jeff N6GQ
>>
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