Durbin'
Cc: 'Elecraft Reflector'
Subject: RE: [Elecraft] KPA1500 with K4 tracks VFOs with 1 kHz resolution
I have seen this behavior using a non-Elecraft exciter (Kenwood) and KPA1500
amp on digital modes. In my case it was right after connecting the new radio
and TX audio levels were too
PM
To: 'Wayne Burdick' ; 'Andy Durbin'
Cc: 'Elecraft Reflector'
Subject: Re: [Elecraft] KPA1500 with K4 tracks VFOs with 1 kHz resolution
Interesting ... I am seeing issues with my KAT500 not holding a setting, but
jumping to (and displaying) a frequency 200 - 300 KHz l
nt: Sunday, July 19, 2020 11:26 PM
To: Andy Durbin
Cc: Elecraft Reflector
Subject: Re: [Elecraft] KPA1500 with K4 tracks VFOs with 1 kHz resolution
Andy (K3WYC) wrote:
> I still don't see the advantage of AUX bus giving the KPA1500 the TX
frequency to 1 kHz resolution. What am I missin
Hi Wayne,
"The improved resolution ensures that the correct bin is detected when you get
within +/- 1 kHz of the target ATU LC data bin rather than +/- 8 kHz."
It has always been possible to provide the KAT500 and KPA1500 with TX frequency
to 1 kHz resolution using the serial interface.
KAT500
ly 20, 2020 12:26 AM
To: Andy Durbin
Cc: Elecraft Reflector
Subject: Re: [Elecraft] KPA1500 with K4 tracks VFOs with 1 kHz resolution
Andy (K3WYC) wrote:
> I still don't see the advantage of AUX bus giving the KPA1500 the TX
frequency to 1 kHz resolution. What am I missing?
Hi Andy,
Very, very desired!
73 Eric WD6DBM
On Sun, Jul 19, 2020, 9:26 PM Wayne Burdick wrote:
>
> This also means that, in the future, we could use smaller bin width on
> some bands if desired. This could be helpful if you were using the ATU to
> fine-tune a very narrowband antenna such as a loop or el
The K4 defaults to K3/K3S auxbus protocol, ensuring compatibility with a
KPA500, KAT500, or KPA1500.
It will only use the new protocol if the amp or tuner has been configured to
use K4 mode.
73,
Wayne
N6KR
> On Jul 19, 2020, at 7:33 PM, AL7CR wrote:
>
> Can you please confirm this means,
Andy (K3WYC) wrote:
> I still don't see the advantage of AUX bus giving the KPA1500 the TX
> frequency to 1 kHz resolution. What am I missing?
Hi Andy,
The improved resolution ensures that the correct bin is detected when you get
within +/- 1 kHz of the target ATU LC data bin rather than +/
On 7/19/2020 8:13 PM, Andy Durbin wrote:
I still don't see the advantage of AUX bus giving the KPA1500 the TX frequency
to 1 kHz resolution. What am I missing?
At this point in time, it may not matter. But who knows how we will be
using our radios 10-15 years from now? The early K3s on my o
"How does that help anything if the tuner bin width is 8 kHz? "
I had confused the rf frequency detect counter resolution with the bin width.
For KAT 500:
Below 3 MHz the segments are 10 kHz wide.
>From 3 MHz through 26 MHz the segments are 20 kHz wide.
>From 26 MHz to 38 MHz the segments are 10
That’s not at all what it means. K4 interfaces via AUXBUS with KPA500 and
KAT500 as a K3.
73 de Dick, K6KR
> On Jul 19, 2020, at 19:35, AL7CR wrote:
>
> Can you please confirm this means, at present, that the K4 does NOT
> interface with the KPA 500 and KTA 500 via the Auxbus. If so, that
Can you please confirm this means, at present, that the K4 does NOT interface
with the KPA 500 and KTA 500 via the Auxbus. If so, that is a major
disappointment. I presume operation is still possible in the frequency sensing
mode as it is with non Elecraft amps. Just writing that last sentenc
"Those using a K4 transceiver with our KPA1500 amp will have the advantage of
+/- 1 kHz resolution in VFO tracking. "
How does that help anything if the tuner bin width is 8 kHz? I could provide
any frequency update resolution I wanted with my controller but I chose to
limit it to 8 kHz to mat
Those using a K4 transceiver with our KPA1500 amp will have the advantage of
+/- 1 kHz resolution in VFO tracking. In many stations, this finer resolution
will result in lower SWR and improved amplifier performance, especially on the
lower bands. (The original resolution was +/- 8 kHz.)
This is
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