[TenTec] Barry's recordings

[al_lorona at agilent.com]

Yeh, I guess you're done for the day, Barry. Have a good one. 

I don't know why the SSB splatter would be artifact of MP3 if all you're
doing is recording audio output from the rig. Wouldn't that have to be
generated in the FT1000? Whatever. 

By my last statement, I mean try to copy the CW signal in your
recording! Let's see who can do it... some of the big contesters should
have little difficulty doing it.

Al W6LX

 

> -----Original Message-----
> From: tentec-bounces at contesting.com 
> [mailto:tentec-bounces at contesting.com] On Behalf Of Barry N1EU
> Sent: Wednesday, February 11, 2004 12:52 PM
> To: tentec at contesting.com
> Subject: Re: [TenTec] Barry's recordings
> 
> 
> 
> --- al_lorona at agilent.com wrote:
> > 
> > Hi, Barry,
> > 
> > If you hadn't told me that the bandwidth was the
> > same on both, I would
> > have sworn that the Yaesu was set to a wide
> > bandwidth. Maybe it's just
> > the center frequency of the filter, which sounds
> > definitely higher on
> > the Yaesu, but there seems to be a lot more of the
> > high frequency SSB
> > splatter audible on the Yaesu.
> 
> I already posted a message to the reflector explaining
> that the "SSB splatter" on the FT-1000 audio is
> actually mp3 encoding artifact and to please ignore
> it.  That's the price of squeezing WAV files down to
> manageable mp3 size. 
> 
> The FT-1000 has much higher internal noise, perhaps
> from the audio stages.  That's all the hiss you hear
> from the FT-1000 - not from a wide filter.  It's quite
> evident when you run a audio spectrum analyzer on its
> audio compared to the Orion.  Both radios are running
> 250hz bandwith.
> 
> I repeated the test after my initial postings and
> optimized the Orion's AGC and filtering further.  In
> that final test (the current mp3 file is from this
> last test), the Orion did not seem substantially
> noisier than the FT-1000 and weak signal detection was
> at least a toss up or maybe even a slight edge to the
> Orion.  It put to rest in my mind any doubts of
> Orion's weak signal capability in the face of K6SE's
> original test and questions raised by K3BU.
>  
> > By the way, I challenge the reflector: post here
> > your copy of as much of
> > the transmission as you can.
> 
> Not sure what this means?  From my end, the book is
> closed on this experiment.
> 
> Sorry for being brief, but trying to get out the door
> here at work.
> 
> 73,
> Barry N1EU
> 
> 
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