[Elecraft] K2 Integration with Z90/91 Digital Panadapter

[David Cutter]

Good article in QEX on your system.

David 
G3UNA

----- Original Message ----- 
From: "Jack Smith" <Jack.Smith at cliftonlaboratories.com>
To: "Elecraft Discussion List" <elecraft at mailman.qth.net>
Sent: Friday, March 23, 2007 6:49 PM
Subject: [Elecraft] K2 Integration with Z90/91 Digital Panadapter


>I have released version 2.0 of Z90-Control software for the Z90/91 
> digital panadapters. It is available for download at 
> http://www.cliftonlaboratories.com/Software.htm..
> 
> Of  interest to this list is integration with the K2's remote control 
> interface. The new software adds the ability to click on a signal of 
> interest and see the actual frequency displayed. A second click will 
> automatically tune a K2 to that frequency.
> 
> Another K2 integration feature recognizes the K2's operating mode and 
> selects one of three IF frequency offsets. This solves a display 
> frequency error problem due to the way the K2 handles different modes 
> with a single crystal filter.
> 
> Also integrated for K2 owners is automatic sense inversion; so that 
> signals displayed on the left are always lower in frequency than those 
> to the right. Since the K2's frequency conversion scheme is 
> up-converting on some bands and down-converting on others, enabling this 
> feature avoids the need to recall upon which bands the frequency display 
> is inverted.
> 
> Note that the LCD display on the Z90 always remains in spectrum analyzer 
> sense mode; lower input frequencies are to the left of higher 
> frequencies. The automatic inversion applies only to the Windows display.
> 
> Other interesting and useful features have been added in release 2.0.
> 
> There is also a new firmware release for the Z91 that speeds up sweep 
> time about 2:1 by deleting code associated with the LCD.
> 
> Jack K8ZOA
> www.cliftonlaboratories.com
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