Thank you very much Don;
I have been testing and when do a tune the power is always 100 w although I
have it set to 15 w in the TUN PWR menu., always 100 w.
In normal operation, cw or ssb, I can choose the power between 0 and 100 w
without problem.
I will start checking the wattmeter.
Thank y
On 2/8/2020 21:45, Joe Subich, W4TV wrote:
Note: this is into a *non reactive* 50 Ohm load. If the load
differs from 50 ± j0 Ohms, IMD is likely to be worse due to
the mismatched load.
Joe makes a very good point. Even with 14.5 V and a perfect 50 Ohm load,
12 V PA's have marginal IMD at 100
On 2020-02-08 7:22 PM, hb9...@hispeed.ch wrote:
>
> My K3S / K3 voltage under load (72W) was 13.1V DC.
13.1 V is too low for reasonable IMD with *any* 12V "100W" PA.
Get the power supply up to 14.0-14.5V. If you can't get at
least 14.0 V at full output, do not try to run more than 60W.
Note: t
Good Evening,
We had a burst of solar wind this week. That should help the
ionosphere. The auroral oval was strong this morning, it is less so
now. I expect some QSB for tomorrow due to the wind but it shouldn't be
deep.
There are a few flowers at lower elevations. I uncovered some
Normally, I would think maybe a transient power issue, due to ALC overshoot
or poor 110/220 volt mains regulation. I don't think the latter would be the
case with a KPA500.
The LP-700 is very fast, and will respond to very short transients of power.
You can slow the meter response down using the P
Perhaps the addition of a thermite infused case for those bad "crypto"
moments...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 2/8/20 4:38 PM, Fred Jensen wrote:
Can't imagine how a K
As a former DoD contractor: Both the FAR and DFARS have specific
sections defining the requirements for the DoD to purchase Commercial
Off-The-Shelf [COTS] hardware and software products. Much of those
sections is devoted to who owns the patents/copyrights and distribution
rights. It's nearl
Hi from HB9CVQ Andy
My K3S / K3 voltage under load (72W) was 13.1V DC.
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of K9MA
Sent: Sonntag, 9. Februar 2020 00:01
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] FW: Testing IMD3 (dB) K3S (#10490)
Supply voltage
Hi Mike,
> Mike Morrow wrote:
>
> 1. Is the KX2 supplied by Elecraft identical to those supplied to amateurs?
Yes. They may be using aftermarket accessories -- not sure.
>
> 2. Is the KX2 being supplied by external DC power?
I believe they use it with both internal and external batte
Supply voltage, under load, at the radio?
73,
Scott K9MA
On 2/8/2020 16:14, Conrad PA5Y wrote:
I have some comments.
My TX IMD is even worse and I was not very happy with the advice I got from
Elecraft. I was advised to use the radio in test mode and use an external
amplifier.
Periodicall
I know for the KX3 that it can be “unlocked” to be used outside the ham
bands. I would assume the KX2 has the same facility. For my KX3 I needed
to show my operating authority as an Army MARS operator.
On Sat, Feb 8, 2020 at 17:08 Mike Morrow wrote:
> Wayne,
>
> This information is extremely in
I have some comments.
My TX IMD is even worse and I was not very happy with the advice I got from
Elecraft. I was advised to use the radio in test mode and use an external
amplifier.
Periodically I have a complain about it. My 10W PA is also poor even after the
FW upgrade that allows additio
Wayne,
This information is extremely interesting and more than a little unexpected. I
am fascinated by the capability of the KX2 (mine is 2.5 years old), but its
internals have very little isolation and protection from adverse ambient
conditions...an essemtial requirement for most gear in mili
Pedro,
If it were a K2, I could tell you that the diodes in the wattmeter have
been damaged and need to be replaced. Those symptoms are almost the same.
The K3 controls power in a similar manner, and I would suggest you start
with the wattmeter - I believe it is on the KAT3 board in the K3.
>From yesterday my k3 always gives 100 w in any band although select any
other power from 0 to 100, always 100 w in the external meter.
Also the swr display shows "- -" and power 0 in any case.
Does anyone know where I can look for the problem?
73 DX de Pedro, EA4KD
_
I would have traded redundant parts of my anatomy for something like the
KX2 back in my day. There are few things worse than NOT being able to
talk to the folks you need to talk to. And not far away on that
list is having to hump a heavier ruck.
__
Clay Autery, KY5G
FYI:
I asked one of our U.S. military KX2 customers (a special forces commander) to
describe how they use the rig. Here's the verbatim quote:
* * *
"We use the KX2 to enable us to communicate in emergency situations where
military-issue gear is unsuitable, impractical, or has failed. Its form
Mitch
Did you receive any answers to your question in this post.
I currently control my KPA500 KAT500 combo using a Win 7 machine and the
server in the Elecraft remote s/w. I connect to both from my control
location using shack PC and the client side of the software. I want to
eliminate the P
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