[Elecraft] Sherwood receiver test on KX3

[Matt Maguire]

Yes, if you are running a panadapter fed from the KX3 RX I/Q output, and you enable 8kHz shift, then all the signals are shifted up on the panadapter display by 8kHz.

Further, if you enable dual watch, then the main signal from VFO A remains at centre frequency, and VFO B is plus or minus 15 kHz from centre. If you have RX SHFT enabled, then you can't enable Dual Watch.

As I hinted earlier, a possible future enhancement may be to combine RX SHFT and dual watch to extend the range of the dual watch. In this case, if VFO B was below VFO A, you would use a positive offset for VFO A, whereas if VFO B is above VFO A, then you would use a negative offset for VFO A. It's a bit of mucking around, so you it is arguable whether the benefit of the extended range really justfies the effort.

73, Matt VK2ACL. 
 
On 15/08/2012, at 11:16 AM, webrehm <derehm2 at yahoo.com> wrote:

> So if you are running an panadapter and turn on RX shift then what happens to
> the panadapter display? Are the frequencies shifted on the display by 8 KHz?
> The Sherwood data would indicate to me that using the 8 KHz shift is a good
> thing to do all the time if you do not have the roofing filter and since the
> 2 Khz dynamic range is 96 dB without the roofing filter and with 8 KHz shift
> on, you get great performance this way.  
> 
> tks
> Dennis
> 
> 
> 
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