[Elecraft] K3 RX Audio

[David Cutter]

I agree in contesting, perhaps the only exception I make is those one or two
stations with <<T9 note, but when I have been a dxp station I wanted to know
how my portable antennas fair, tho I must say I routinely give the callers
599.  Yes, after several hours operating in the tropics at high temp and 
humidity, it gets somewhat tiring and automated responses help a lot.

Thanks for info on the filter settings, I look forward to trying this.

David
G3UNA


----- Original Message ----- 
From: "Tree" <tree at kkn.net>
To: "David Cutter" <d.cutter at ntlworld.com>
Cc: <elecraft at mailman.qth.net>
Sent: Thursday, September 20, 2007 9:31 PM
Subject: Re: [Elecraft] K3 RX Audio


> On Thu, Sep 20, 2007 at 07:28:31PM +0100, David Cutter wrote:
>
>> What were your filter settings?  Sounds like a couple of hundred hertz.
>
> So - the filter I was using is something like this:
>
> 150 hertz in the center of the passband.  This has a rather sharp cutout, 
> but
> only goes down something like 10 or 15 db to the second filter.
>
> The second filter is wider - 400 hz.  Which matches the roofing filter.
>
> This is the context filter I keep talking about.  It really seems to
> help my ears cut down on the noise - but still leaving some of the
> energy outside the passband which I believe is useful in weak signal
> work (ask a moonbouncer what filter they prefer to use - and most of
> them will tell you an SSB filter).
>
> Also - if you are listening in stereo - your are experiencing one of
> the audio effects that have been programmed into the DSP.  It is delaying
> the sound in one ear slightly to the other ear - and to my ear, this
> makes copying signals easier.  This feature is going to be improved
> with some fancy work to spread the frequencies across the stereo
> spectrum (binaural audio) - and of course, if you get the second RX
> board, you can use it for diversity reception which will really help
> get those missing dits at the end of your callsign as the signal
> experiences QSB.  :-)
>
>> I give 599 in contests just as an "acknowledgement of reception", as I
>> would call it.  Do dx stations prefer "real" reports or is 599 adequate?
>> On the rare occasions I have been dx, I preferred real reports, but it's 
>> a
>> matter of personal preference I guess.
>
> Ah - I knew this would get asked as some point.  DX-pedition stations
> prefer a 599 report as they don't have to do anything to change the
> entry in their computer.  They get tired after many hours of operating
> field day style and anything to conserve energy is a good thing.  This
> includes only sending 599 so they don't expend the mental energy
> of computing a signal report and trying to get it logged correctly.
>
> I am sure there are those on this list who feel this is not what
> Hiram had in mind - but it is the way the game is played, for better
> or worse.  The point of this recording wasn't to provide a spark for
> a debate about DX-pedition operating technique - but rather to give
> a sample of what the K3 sounds like.
>
> I'll try to post some more sound files from an upcoming European opening
> on 160 for y'all.
>
> 73 Tree N6TR