Hi allWhen too much rf is present on the AUX input of the K3 sub-rx the
protection circuit is activated (relay activates)What is the minimum level in
dBm at which this protection is triggered.If no one knows I just have to
measure it..73 HenkPA0CVerzonden vanaf mijn Samsung Galaxy-smartphone.
As Jack Brindle noted (and he would know), it appears to be a stuck relay.
If you don't want to send the amp back to the mothership, I'm sure Elecraft
Support could identify the relay, and if you can do rework, you could
remove the bad one and replace it yourself.
73 Eric WD6DBM
On Tue, Nov 26,
Eric,
I reloaded the firmware tonight – no change (in fact I upgraded it from 1.47 to
1.54).
If I plug the mains cable in the fans power up immediately. If I then turn the
amplifier on, the amp works normally. When I power it off from software or the
front panel the fans spin up and
When the KPA shuts down, the power relay is switched off, then the driver
transistors for the fan are turned on. The microcontroller shortly executes a
restart, which puts the MCU into boot mode, but does not reset the I/O ports.
Thus the fans are turned on, allowing the big power capacitors to
"As Jack Brindle noted (and he would know), it appears to be a stuck relay."
Ok, I'll bite. How would a mechanically stuck relay be freed by cycling power?
Andy, k3wyc
__
Elecraft mailing list
Home:
After owning a K3 and P3 combo for several years, I put the P3SVGA (along
with a generic monitor and wireless keyboard) on my Xmas list a while
back... I had been perfectly happy with just the little P3 but the big
screen has exceeded all expectations for detail and responsiveness... In
addition,
In looking at the schematic, I see the fan is controlled by a MJE182
{Q5}. If this transistor shorts the fan runs at full speed. I didn't
see a relay in the circuit, but I could have missed it.
73
Bob, K4TAX
On 11/26/2019 3:29 AM, Eric Norris wrote:
As Jack Brindle noted (and he would
"Ok, I'll bite. How would a mechanically stuck relay be freed by cycling
power? "
Never mind. I should have checked my notes first. Stuck K1 in the PSU would
seem to fit the symptoms.
Andy, k3wyc
__
Elecraft mailing list
Home:
I have requests to do FT8 on top band from 3B8 right now. I have receive
going OK and also CAT but I can't get audio from WSJT-X on a WIndows 10
Home Pro laptop to get into my K3S. ANyone out there who can help?
73 Olof G0CKV 3B9HA 3B9M
Don,
You are correct it works fine this way. I do it that way. Only one
suggestion, use VOX. once tone is on the radio goes into transmit rather
nicely. I do this for all the digital modes and have run into no
problems. Once Elecraft added the internal sound card it really made
operating
Olof,
Are you connected to the K3S using the USB cable?
If so, check the soundcard that WSJT-X is trying to use for audio output
- it should be USB AUDIO CODEC.
You must NOT have anything plugged into the K3S LINE IN jack unless you
are using a different soundcard than the internal one.
If
If you have one for sale contact me directly.
nick[dot]ve3ey[at]gmail[dot]com
73
Nick VE3EY
Sent from my iPad
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Thank you all. I thought I had all this done but the obfuscated Windows 10
audio settings caught me out probably. It turned out that it was the transmit
chain of audio level settings wsjt pwr - windows spkr audio - K3 mic/line level
that had to be ’tuned’. So next step will be to read up on how
."So with the K3s and KPA-1500, then antennas as described, is there any
reasonable way to connect this up and if yes, should I expect a noticeable
improvement?"
Have you tried the current antenna setup with the 1026..? Did it perform at
all? If not, what were the perceived shortcomings?
What I have now is the K9AY as the main antenna on the 1026, and the
random-length vertical with two radials as the second "Aux" antenna. The
adjustment is extremely finicky. The phase control has a hair trigger
basically. Plus I can't really equalize the signals since the vertical aux
antenna
Hi all,
I'm looking at replacing my finicky MFJ-1026 with a DX Engineering NCC-2
this season but I have a couple of questions for anybody here who's got one.
At the moment I have one TX antenna for 160 (inverted-L), one TX antenna for
80 (inverted vee), a K9AY RX loop for both and an AUX
I fought noise on MW thru 20 at my QTH. I used a 1026 with great success,
but it took running a second antenna very similar to the first to null out
the noise. I was running a dipole and I put up another made out of very
small wire on the other side of my lot at about 3/4 the height, but it was
On 11/26/2019 8:38 AM, Olof Lundberg wrote:
I have requests to do FT8 on top band from 3B8 right now.
That would be wonderful, Olof! Also 80M. And thanks for the 40M Q last
weekend.
73, Jim K9YC
__
Elecraft mailing list
Home:
On 11/26/2019 5:20 PM, Peter Dougherty wrote:
So with the K3s and KPA-1500, then antennas as described, is there any
reasonable way to connect this up and if yes, should I expect a noticeable
improvement?
The NCC-1 is an excellent unit; the NCC-2 adds a TX antenna input port.
It is most
19 matches
Mail list logo
