So the issue is that the pop on turn-on is much worse with powered
speakers than passive speakers? That's exactly what you'd expect if the
powered speakers have a higher input impedance. The series capacitor in
the K3 output along with the load impedance forms a high-pass filter.
The higher the
At the risk of resurrecting the Speakers thread, my experience is that
I've never been able to make any full range speaker, powered or
otherwise, sound acceptable on any amateur rig. No matter what I try, I
keep returning to my trusty pair of unpowered Motorola 2 way radio
speakers. The Moto
: [Elecraft] Turn on turn off transients
At the risk of resurrecting the Speakers thread, my experience is that
I've never been able to make any full range speaker, powered or otherwise,
sound acceptable on any amateur rig. No matter what I try, I keep returning
to my trusty pair of unpowered Motorola 2 way
Probably of more consequence in the powered speakers is that they all are
targeted at music use on PC's. They are in tiny enclosures and have a huge
bass pre-emphasis to keep them from sounding tinny. The pre-emphasis
will increase with increasingly lower frequency, likely meaning that
something
Is there any way to stop the tooth rattling turn on and turn off thump from the
K3? It can't be good to have a blast of DC go through my external speakers I
jump every time this happens.
K6CG
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What tooth rattling turn on and turn off thump from the K3?
Never heard that myself. I use the K3 power button to turn off and on.
Some folks I know turn off the power supply. Maybe that's different?
Exactly how do you turn rig on and off?
73, Guy.
On Tue, May 1, 2012 at 12:26 PM, Richard
My K3 thumps the powered external speakers pretty good when I turn it
on/off using the power switch on the front of the rig.
Tim
On Tue, May 1, 2012 at 10:24 AM, Guy Olinger K2AV olin...@bellsouth.netwrote:
What tooth rattling turn on and turn off thump from the K3?
Never heard that myself.
Hi Richard,
Do you have the problem if you only use the internal speaker? Is your
firmware up to date?
73,
Mike K2MK
Richard Thorpe-2 wrote
Is there any way to stop the tooth rattling turn on and turn off thump
from the K3? It can't be good to have a blast of DC go through my external
I have had the same issue as K6CG. There is a thump or spike with the K3
on
turn
on, I also use powered external speakers, M Audio AV40's. I have a master
kill
switch
that kills the shack with the exception of lights and clock. Turn on of the
master switch
and having left the accessories
Something seems wrong with your particular set-up. I have a K3/100 + P3,
and it makes no audio sounds whatever when turned on or off. There is a
slight relay click, but it is not particularly noticeable.
John Ragle -- W1ZI
=
On 5/1/2012 2:31 PM, Mike K2MK wrote:
Hi Richard,
Do you have
My K3 also thumps with power on and off transitions. In my case, I use
the SPKRS output to drive either a set of headphones (Yamaha CM-500 or
Sony MDR-7650) or the inputs of an old Radio Shack SA-155 amplifier,
depending on whether the headphones are plugged into my headphone box.
Looking at
Randy Farmer wrote:
My K3 also thumps with power on and off transitions
This is an important part of the power-on self-test sequence. It
allows you, and others, to verify even at some distance from the radio
that your speaker(s), KIO3 interconnections, large electrolytic
coupling
In other words, it's not a bug, it's a feature. :)
Rob
NV5E
From: n...@elecraft.com
To: w...@tx.rr.com
Date: Tue, 1 May 2012 19:35:12 -0700
CC: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Turn on turn off transients
Randy Farmer wrote:
My
And, that is what I thought the K3 thump feature was all about!
On May 1, 2012, at 7:35 PM, Wayne Burdick wrote:
Randy Farmer wrote:
My K3 also thumps with power on and off transitions
This is an important part of the power-on self-test sequence. It
allows you, and others, to
Those thumps may be bothersome for those using powered speakers, I am
using unpowered speakers and while I hear ag the intensity couple of
thumps at turn on and turn off, neither are offensive and bothersome.
Perhaps you are increasing with your powered speakers
Do your powered speakers run
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