[Elecraft] K3 Display and Eye Glasses for OTs only

[Mike]

Thanks, Doug.

You missed the post where I said I have the extra glasses. Without them, 
I probably would have to put one of those 'page magnifiers' on the front 
panel..... :-)

73, Mike NF4L

Doug Turnbull wrote:
> Mike,
>     Another solution is to have a pair of glasses for radio use.   I have
> set of bifocals which are used for computer and radio with roughly a thirty
> inch focal length and reading at roughly fourteen inches.   I find them very
> convenient in the radio shack.
>              73 Doug EI2CN
> PS What have we come to talking this way.
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mike K2MK
> Sent: 04 June 2010 19:50
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 filter display size
>
>
> Hi Joe:
>
> Here's a low tech solution: "trifocals". I sit about 28" from my computer
> screen and about the same from the K3. The middle range of my trifocals is
> perfect. Same problem and solution for the speedometer on the car's
> dashboard.
>
> 73,
> Mike K2MK
>
>
>
>
>
> Don,
>
>  > Yes, there is a lot of granularity to that display, but it still
>  > give a good idea of the filter placement within the audio spectrum
>
> The problem is that there is no change between 500/400 Hz or between
> 250/200 Hz.  That means it is not possible to determine if a 400 Hz
> or 200 Hz filter are selected only from the filter width display.
> In the case where the "FLn" icons are too small to be read with one's
> distance lenses and the radio is too far away for the reading lenses
> the filter width display should be an important clue to the selected
> filter.
>
> 73,
>
>     ... Joe, W4TV
>
> On 6/4/2010 10:00 AM, Don Wilhelm wrote:
>   
>> Mike,
>>
>> That truncated pyramid should change as you move the HI/LO CUT or
>> SHIFT/WIDTH knobs.  In other words, it should respond to changes in the
>> DSP filter controls.  Set the K3 to SSB and if the HI/LO indicators are
>> not illuminated, push one of the two buttons in - then turn the HI CUT
>> knob counterclockwise.  The segments to the right should drop off as you
>> rotate the knob.
>>
>> Then switch to the SHIFT/WIDTH display - rotate the shift knob and the
>> display should move left to right (no change in width), and rotate the
>> WIDTH knob to change the width - when you go counterclockwise, it should
>> go down to 50 Hz and the number of bars will be only two.
>>
>> Yes, there is a lot of granularity to that display, but it still give a
>> good idea of the filter placement within the audio spectrum
>>
>> 73,
>> Don W3FPR
>>
>> Mike wrote:
>>     
>>> The truncated pyramid icon that displays a filter's width only has 2
>>> sizes, a wide one (11 'segments') for my 2.8 and a narrower (7
>>> 'segments') for both the 400 and 250 filters. Is that the way it's
>>> supposed to be? The wording on the xfil display is getting too small for
>>> these eyes.
>>>
>>>