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K3 Autoinfo speed - different with USB?

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gt-i

K3 Autoinfo speed - different with USB?

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

> I just checked, here is my result:
> K3 (FW 5.6)
> set AutoInfo to 1: K3 sends out IF-msgs while moving the VFO knob,
> even
> on 10Hz changes.
> The K3 rather slows down message output to about one second,
> whatever you'll do with the VFO knob. The timing behavior is
> identical to Autoinfo=2.
> set AutoInfo to 2: K3 sends out FA/FB messages, WT does not react
> to them
>
> KX3: (FW 2.9)
> same as K3
>
> K2: (FW 2.04)
> same as K3, except it only sends messages after the VFO knob stops
> with
> a delay of about 1-2 seconds.
>
> Gernot, DF5RF
>
>

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Don Wilhelm

Re: K3 Autoinfo speed - different with USB?

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, [hidden email] 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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Help: http://mailman.qth.net/mmfaq.htm
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gt-i

Re: K3 Autoinfo speed - different with USB?

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, [hidden email] 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
>