Unit is now in transit to Elecraft for repair.
Jim ab3cv
> On Nov 11, 2019, at 9:03 AM, Jim Miller wrote:
>
I participated in the WAE RTTY contest this past weekend and was having
problems with thermal tripping.
I have resonant antennas for 80, 40 and 20m and had SWR between 1:1 and 1.2:
Unit is now in transit to Elecraft for repairs.
Jim ab3cv
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Post:
I have two KX3s, both with PX3 panadapters, and one with a KXPA-100. Both are
from a non-smoking environment with no children or pets.
System no. 1:
KX3, factory assembled
Automatic antenna tuner
Dual passband filter
MH3 mic
The usual cable package
Owners manual
It is a late model unit with the
"The KAT500 utility was updated a few months ago to specifically correct this
problem"
Thanks. I updated and the problem is fixed.
73,
Andy, k3wyc
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Help:
This config save problem is generally caused by a permissions issue to the
configuration file folder.
You need a folder that a non-admin can create files and write into. The default
folder is c:\Users\yourname\Appdata\Roaming\Elecraft\KAT500 configuration. You
should be able to create a file i
The KAT500 utility was updated a few months ago to specifically correct this
problem (I was the reporter and the guinea pig).
The current version is 1.19.8.5
73
Lyn, WØLEN
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of A
Hi Wayne,
That's the sort of thing I was thinking of. I think Collins did
something like that back in the 50's. Even if it meant dedicating the
sub RX to noise detection, it would be worthwhile in high noise
environments. I've thought of trying to modify the K3 to do something
like this, but
Very nice set up, Dave.
But what really caught my eye is that you have 2 kitties with exactly the same
colorings as ours.
Must be a ham thing, only in our case the tiger kitty is 'Da Boss.'
73
Lyn, WØLEN
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun..
I operated the contest with over 1200 contacts. I never saw temps over
80c. I too have a low serial number but have installed all the firmware
updates. Only on 40m did I hear the fan speed get to a very high speed. I
was running about 1200w at all times.
Richard
*W7ZR* ex:5C5Z, CN2ZR, K2JSP, W
I've been having a problem with my installation that requires me to run the
KAT500 utility 'As Administrator'.
When I do this, it works. When I don't, it fails - hangs, actually.
Perhaps this is related?
- 73 and good DX de Mike, K6MKF, NCDXC Secretary
> -Original Message-
> From: ele
Hi Scott,
We could trigger the main RX noise blanker from the sub RX, though we haven't
tried this yet. I believe this would achieve what you're describing. For
example, the sub RX could be tuned to 13.975 while the main is tuned to the 20
meter CW band.
73,
Wayne
N6KR
> On Nov 10, 2019, at
As indicated on my K3S current display, at a PWR setting of 100 watts,
to a 50 ohm dummy load:
160M = 18.0A
80M = 17.6A
40M =16.0A
30M = 16.4A
20M = 20.2A
17M = 20.2A
15M = 17.0A
12M = 17.7A
10M = 17.0A
6M = 18.8A
I'd consider these values to be typical and normal. Actual power
out
Thank you for the information. RTTY contests are the acid test of an
amp
On Mon, Nov 11, 2019 at 8:35 AM Jim Miller wrote:
> It trips off at 105C.
>
> It starts warning with a yellow indication at 100c
>
> Power reduced to 1kw helped slow the rate of temperature increase but
> still require
FS: K3/100 s/n 64xx. kit built by myself. never out of non-smoking, no pet
shack. no problems at all. ever.
configuration: KPA3, KAT100, DVR3, KRX3 (sub-RX), KSYN3 (original, not
upgrade A version), KXV3B (upgrade) and KIO3B (upgrade).
main filters: 2.8/400; sub filters: 2.7/500.
photos on
It trips off at 105C.
It starts warning with a yellow indication at 100c
Power reduced to 1kw helped slow the rate of temperature increase but still
required a cold room and max fan speed at the beginning to contain it. It
never stopped climbing.
Jim ab3cv
On Mon, Nov 11, 2019 at 9:32 AM Fred M
What output power did that reduce too ultimately, is 105c the design temp
limit?
On Mon, Nov 11, 2019 at 8:30 AM Jim Miller wrote:
> " I rode the drive power downward as the power increased to stay below the
> trip point of 105c."
>
> Should have been "as the temperature increased"
>
> jim ab3c
" I rode the drive power downward as the power increased to stay below the
trip point of 105c."
Should have been "as the temperature increased"
jim ab3cv
On Mon, Nov 11, 2019 at 9:03 AM Jim Miller wrote:
> I participated in the WAE RTTY contest this past weekend and was having
> problems with
"I rode the drive power downward as the power increased to stay below the trip
point of 105c."
Was that intended to be "as the temperature increased"? If so, do you have any
data that shows PA dissipation is lower at reduced power levels for the
KPA1500? For the KPA500 PA dissipation increase
I participated in the WAE RTTY contest this past weekend and was having
problems with thermal tripping.
I have resonant antennas for 80, 40 and 20m and had SWR between 1:1 and
1.2:1, power nominally set between 1400-1500w.
I found that I couldn't repeatedly CQ without temperature creeping up so I
Measurements on my K3S into a 50 ohm load, at 100 watts PWR setting did
show the current does vary from band to band. I found that 20M and 17M
were the highest at 20.2 amps as indicated by the current display in the
K3S. The lowest current was 16.0 amps on 40M. I would consider this
to be
NW4JF should be WW4JF.
Eric WB9JNZ net control.
Sent from AT&T Yahoo Mail on Android
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If you attempt to use KAT Utility version 1.19.5.30 to restore a saved
configuration it may hang up when progress bar shows complete (full green bar).
Config files can be restored with Utility version 1.16.7.25 which is the
previous released version. 1.19.5.30 fixed a problem with writing SWR
Something that I have recently noticed on my K3S/100 : DC current draw on 20
meters is significantly higher (+4 amps) than the other HF bands at the same
power setting and input conditions into a dummy load (into antenna, same
thing). This is both before and after performing a TX Gain Cal.
Te
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