You can pull them via the KPA500 utility; Configuration Tab, Fault table.
Rick nhc
On 2/28/2019 9:08 PM, Dave Cole (NK7Z) wrote:
Logs? Can you expand on that a bit? Does the KPA500 keep logs? How
are they available please?
73s and thanks,
Dave (NK7Z)
https://www.nk7z.net
Award Manager,
Thanks for that. I never understood the Ameritron ALC instruction for my
ALS-600 so I just never used the ALC. That attached instruction was much
clearer and made sense.
Brian Denley
KB1VBF
Sent from my iPad
> On Feb 28, 2019, at 10:19 PM, Bob McGraw K4TAX wrote:
>
> This fellow seems to
Logs? Can you expand on that a bit? Does the KPA500 keep logs? How
are they available please?
73s and thanks,
Dave (NK7Z)
https://www.nk7z.net
Award Manager, 30MDG Grid Awards
ARRL Technical Specialist
ARRL Volunteer Examiner
ARRL OOC for Oregon
On 2/28/19 1:35 PM, Kevin der Kinderen wrote:
Thank you to Don, Alan, Bob, and Grant for your responses to my question. When
I use it for AM, I will keep it to around 75 to 80 watts to have a safety
margin. 73 Mike KF6KXG
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This fellow seems to have a good handle on the ALC issue as it relates
to overshoot in the transceiver.
https://www.w8ji.com/alc_exciter_power_overshoot.htm
Here Tom goes into the discussion of good ALC vs. bad ALC systems.
https://www.w8ji.com/ameritron_alc_adjustment.htm
73
Bob, K4TAX
Mitch:
> On Feb 28, 2019, at 5:50 PM, Mitch Wolfson DJ0QN / K7DX wrote:
>
> Barry,
>
> Understand your standpoint now, but that is the opposite of what you wrote
> below. You said that you wanted to be able to run the KAT-500 utility
> remotely, which prompted me to let you know about the
Many years ago, I built a tube amplifier with what I thought was a
fairly sophisticated ALC circuit. I could never get the ALC loop to be
stable. I know a lot more about control systems now, but I still don't
know how to get ALC around an amplifier to work, and apparently neither
does anyone
Barry,
Understand your standpoint now, but that is the opposite of what you
wrote below. You said that you wanted to be able to run the KAT-500
utility remotely, which prompted me to let you know about the serial
servers that would be the solution. The Apple part of course makes that
The report that a KPA500 was damaged by 100 W drive had me coding a new
enhancement to my Kenwood/Elecraft control interface the same day. I now
continuously monitor the TS-590 power setting and, if it exceeds 35 W, I assert
the KAT500 key line inhibit. The key line stays inhibited until the
how about the entire front , or maybe just a thin portion of the front
panel of the new K_ come off showing a connector for the internet, and
or maybe a internal wifi node ..like a raspberry pi type
walk off and log on !!!
Do not forget the 50V finals & the inclusion of predistortion.
And now the voice of caution.
I think the KPA500 with the KAT500 and my Flex are a wonderful combination.
That said, my KPA500 stopped working. It appears, after reviewing the logs,
I hit it with 75 watts and probably blew one of the diodes in the front
end. I can dig up the explanation if
I have had my KPA500 for around 5 years. I frequently feed through 200w from my
TS990S.
I have also accidentally abused it many times by putting 100w or more into it
or using the wrong antenna or some such operator error.
It has always just faulted appropriately and come back up smiling.
It
Mitch:
> On Feb 28, 2019, at 11:27 AM, Mitch Wolfson DJ0QN / K7DX wrote:
>
> Barry,
>
> I have been using serial to ethernet servers for over 10 years to control
> rotors, amplifiers and other serial devices. You set these up once and can
> forget about them. You install a virtual serial
Yes, improperly or incorrectly using ALC with any amp or any
transceiver, for that matter, can and usually does produce distortion
and splatter. Just look at some of the signals on the bands and
observe the ALC overshoot which exists with many radios. And it is
made worse by the addition
On 2/28/2019 11:04 AM, j...@kk9a.com wrote:
I have not used ALC with any amplifier since transceivers switched to
transistor finals. From what I have read on this list, using ALC
improperly can cause distortion.
That's correct. And it's not limited to solid state amplifiers. The
owner's
I have not used ALC with any amplifier since transceivers switched to
transistor finals. From what I have read on this list, using ALC
improperly can cause distortion. Just be very careful with your drive
level. I believe that the KPA500 can handle 100 watts in bypass, 200
watts may be
I agree with Rick just keep the drive power to the minimum needed to get
the 500 watts out. Over driving will do nothing but distort the signal and
most likely eventually damage the amp. I use 18 to 20 watts to get 500 out
on 160 mtrs and a bit more to get same results on the higher bands.
Bruce
When I read in the manual where it says "never exceed 40 watts" that
leads me to believe one should not do that. While the protection
circuit is fast and there is a 3 dB attenuator that switches in
automatically, from 100 watts down 3 dB is still over 40 watts. I think
I read here where
The fault ability of the KPA500 is fast, BUT I would not test that with
100 watts. The tuned input can only take so much abuse.
ALC should be used as a secondary (emergency) limiter, not for everyday
use. It will cause distortion (in part from overdriving the amp).
Proper management of the
I have never owned an amp before and recently put together a KPA500. All
seems to be working well, but I have a few questions. I am using with a
IC-7300.
How important is the ALC cable? I notice it is not included in the Basic
Cabling Diagram in the manual but is discussed later in the manual.
Barry,
I have been using serial to ethernet servers for over 10 years to
control rotors, amplifiers and other serial devices. You set these up
once and can forget about them. You install a virtual serial port on the
control PC for which you can use any kind of client software to control
that
That is something that I requested some years ago and again this year.
To make a box that allows control of the K3(S) using the same port as
the KPod plus a connection to Line in/out for audio.
Using something like an FPGA, with networking integrated, it appears to
be a simple matter to
Fred:
> On Feb 28, 2019, at 8:20 AM, Fred Massey wrote:
>
> A K3/0 that could directly connect over the internet with a K3s (K3s+ or
> K4) is really needed. The remoterig is relatively difficult and old tech.
> The client server architecture like flex is using is what is needed.
I use the
It would be ideal to also include the band scope of the p3 into the
solution. Perhaps the integration of the solution could be encapsulated
into a new P3. The functionality of remoterig can be in the new P3, and
the P3 scope data could be sent digitally over the internet as well.
On Thu, Feb
That’s the idea, all contained in one box, wired internally
I know is possible, and already done, but never to sell it
But Fred’s idea is better, just don’t know if it’s possible with actual K3 or
K3s or will need a complete new radio
73,
Jorge
Enviado desde mi iPhone
El 28 feb. 2019, a
I couldn't agree more. I'd buy the hell out of that combination. I'd go
further, and would like to see a smaller physical sized remote for easy
traveling. Fewer physical controls but much less size and weight.
- pjd
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of
Hi Mike,
I had to perform the temp compensation a few times. A couple of those
times necessitated a retry due to operator error in the setup :-) I
eventually achieved a level of proficiency in preparing to apply the heat
source. Initially, I used a hair dryer the first couple of times. But
Back when I was traveling a lot I considered getting the old style K3/0(the
full size one)and building all of the remote hardware into it, so it would be
all self contained in one box.
On Thursday, February 28, 2019, 9:12:51 AM EST, Jorge Diez - CX6VM
wrote:
Hello
any idea if will
A K3/0 that could directly connect over the internet with a K3s (K3s+ or
K4) is really needed. The remoterig is relatively difficult and old tech.
The client server architecture like flex is using is what is needed.
73,
Fred
AE4ED
On Thu, Feb 28, 2019 at 8:12 AM Jorge Diez - CX6VM
wrote:
>
Hello
any idea if will be a new control radio for remote? Like K3/0 Mini with
remoterig integrated inside it?
Maybe for Dayton will have it?
--
73,
Jorge
CX6VM/CW5W
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The other day I finally got up the nerve to perform the temp compensation
procedure on my KX3. The process went fine as far as I could tell (the
Elecraft instructions we great), I tried very hard to limit the temp rise
to only one degree every min or two. So then this morning, I am looking at
my
Has anyone used the T1 remote cable with the Yaesu FT-818Elecraft says they
have not tested it.
73! Tomy KF7GC
AZ STM, A1-Operator
NM AZ Section Net,
ORS, www.atenaz.net
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