Should point out that the TX and RX EQ feature came later on as a
firmware upgrade, but I would definitely agree that post DSP board
upgrade and RX EQ, you can make it sound like anything you want,
including "shrill" for the contests. The K3 is the only RX that I
have ever had that can receive music on SSB and have it sound normal.
And no, we are definitely not used to "flat" response.
There have been MANY improvements since it was introduced, almost
entirely customer-requested. SDR rocks.
73, Guy.
On Sat, Apr 9, 2011 at 1:23 PM, Joe Subich, W4TV <li...@subich.com> wrote:
>
>> At first, I thought there was something in a menu setting or a
>> control I wasusing incorrectly that wasn't allowing me to add more
>> "lows" (if that's what you call it) that was causing the problem, but
>> that wasn't the case.I called Elecraft and talk to people about
> > it, but no cause could be found. I kept it for about two months
> > then sold it.
>
> There have been changes to the DSP board to allow more lows (remove
> a low frequency roll off) with low impedance headphones and a high
> cut filter has been added to remove noise from the digital to analog
> converter above 4.5 KHz. Those changes may help your perception of
> the receiver audio but I believe what you were hearing was the flat
> response of the K3.
>
> Unlike just about any other receiver I've tested, the K3 has an
> absolutely flat response 100 Hz to 4 KHz other than ripple in the
> first IF ("roofing") filter. Other receivers show a pronounced
> roll-off starting between 1000 and 1500 Hz - between 3 and 6 dB
> per octave.
>
>> Does anyone remember experiencing something similar with your K3 or
>> heard about a possible solution?
>
> It is quite easy to create that "warm" sound with the K3. Simply
> use the RX EQ to duplicate the roll-off you are used to hearing.
> Setting 1600 Hz to -3, 2400 Hz to -5 and 3200 Hz to -6 "warms up"
> the receive audio nicely. Use -6/-10/-12 if you want an even more
> "mellow" sound.
>
> 73,
>
> ... Joe, W4TV
>
>
> On 4/9/2011 12:49 PM, Tom Stone wrote:
>> I owned and assembled a K3/100 about two years ago and was impressed with
>> the high quality of the radio, its design and support from other owners and
>> Elecraft.
>>
>> Everything about it worked fine except that it seemed that I could never
>> quite adjust the sound of a person on SSB to the point where it was a
>> pleasant, (what I call)
>>
>> "mellow", armchair-type copy. It seemed too shrill, it had a "high edge" to
>> it that couldn't be adjusted out.
>>
>>
>>
>> At first, I thought there was something in a menu setting or a control I was
>> using incorrectly that wasn't allowing me to add more "lows" (if that's what
>> you call it) that was
>>
>> causing the problem, but that wasn't the case. I called Elecraft and talk to
>> people about it, but no cause could be found. I kept it for about two
>> months then sold it.
>>
>>
>>
>> Years have gone by and I am still very impressed with the quality of your
>> product and company and would like to put together an "Elecraft Shack". I
>> am wondering if the
>>
>> changes that have taken place over the past few years in the programming of
>> the K3 might have solved the "problem" I experienced a few years ago or
>> maybe it is just
>>
>> my level of hearing that is the problem.
>>
>>
>>
>> Does anyone remember experiencing something similar with your K3 or heard
>> about a possible solution?
>>
>>
>>
>> Thanks for any info you could provide.
>>
>>
>>
>> 73
>>
>>
>>
>> Tom
>>
>> N3XQ
>>
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> ______________________________________________________________
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