Don,
ok, thank you. That clarifies the issue. Would be nice to hear from the Elecrafters if there are any firmware changes possible to improve the IF-message timing. If not: I already had the idea to implement a frequency counter which measures the VFO's frequency, connects to the RS-232 output and combines the two into a super-responsive frequency status message generator :-)
Anybody interested? Then maybe I'll give it a try.
73 Gernot DF5RF


Am 31.05.2018 um 23:12 schrieb Don Wilhelm:
Gernot,

The USB interface will not change anything unless your computer changes something at its end.

Realize that the K3S or K3 with the USB interface still runs internally with RS-232.  The USB interface simply moves the FTDI adapter chip inside the K3/K3S.  You still have to identify the COM port that is assigned by the computer to your software applications.

Oh yes, a soundcard chip is also added.

73,
Don W3FPR

On 5/31/2018 4:58 PM, [email protected] wrote:
Hi all,
at the WinTest-reflector people asked why the K3 does not appear "smooth" in the band map as another vendor's TRX.
I made some tests and found out the following, see below.
Now my question: will the new USB-Interface change that timing behavior?

tnx, 73, Gernot DF5RF



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