> David Stout wrote:
> 
> I would like to see a comparison of the P3 and K4 in full screen mode. Is the 
> K4 scope faster, higher res?


Hi David,

The K4's LCD has nearly 3x the area of the P3's, and 5x as many pixels. The 
resolution (pixels per inch) is about 30% greater. It's faster as well as 
brighter -- the K4 screen was easily readable in diffuse daylight during Field 
Day, while some other rigs' displays were not.

The K4's panadapter area using the standard display format is 25% greater than 
the P3's. This doesn't include the per-VFO "mini-pan" displays that overlay the 
S-meters, when desired, for fine tuning of signals.

Thanks to the much larger LCD, variations on the panadapter could be created 
that are much larger than this, at the expense of some per-receiver icons and 
the S-meters. So far we haven't felt the need, partly because the K4 includes 
an HDMI output that can drive an external monitor of any required size. This 
external monitor can be configured to display just the panadapter, with 
independent settings from the panadapter on the LCD.

Beyond this the K4 display provides:

- dual-pan mode (separate panadapters for main/A and sub/B)

- single or dual text decode windows

- far more digital signal processing horsepower (in aggregate, 
  roughly an order of magnitude greater than the K3S+P3)

- built-in IQ data streaming for use with computer applications

- a configurable multi-band mode to allow a quick check of activity
  on your favorite bands
 
- more flexibility in terms of display functions

- overlays for various functions (e.g.: DX call station list, 
  help information on all controls, RX/TX graphic EQ, alphanumeric
  keyboard for message/macro/menu entry, etc.); 

- virtually unlimited code space for future expansion; examples
  might include high-performance data decoders, AZ/EL display,
  custom station controls, image display, etc.

In short, the K4's display is much larger and more versatile, providing the 
kind of control visibility and convenience that's only possible by integrating 
the display into the transceiver itself.

Oh, and it's really fun to use :)

Wayne
N6KR



 
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