David,
Bandwidth might not be a good argument. I'm not convinced
ALC transients are a major universal problem with SSB
signals when they are compared to other reasons for
bandwidth problems. This isn't the appropriate forum for
that discussion.
I have looked at ALC overshoot because of my
Hi Dave,
I'm not sure that the embedded picture I received from you would be passed
by the reflector, so I'm just quoting your text below.
The graphics show that peak distortion in the adjacent channel was only down
25 db from in-channel max power. This even though your trebled up voice is
still
Hi Guy,
Apparently the reflector does not pass emails with large attachments. I think
it is pretty graphic and I would like others to see it if I can figure out how.
I'll call SteppIR tomorrow and discuss it with them. I support your
recommendation
that they take that recommended method of
The usual way is to put it up on a web page somewhere, and put the
link in the email.
73, Guy
On Sun, May 16, 2010 at 5:07 PM, David M. Elliott
immondi...@earthlink.net wrote:
Hi Guy,
Apparently the reflector does not pass emails with large attachments. I
think it is pretty graphic and I
2010/4/22, LA8AW odd...@gmail.com:
Here is the statement from the developer of the SPE Expert 1K-FA - regarding
ALC, quoted from an early Expert Reflector:
I hope this will clarify the SPE Expert vs K3 - and ALC !!
*We really suggest to always leave the transceiver's output power
: [Elecraft] K3 - SPE Expert 1K-FA and ALC
2010/4/22, LA8AW odd...@gmail.com:
Here is the statement from the developer of the SPE Expert
1K-FA - regarding
ALC, quoted from an early Expert Reflector:
I hope this will clarify the SPE Expert vs K3 - and ALC !!
*We really suggest to always leave
Sorry, with all due respect this is HORRIBLE advice.
I won't argue with those that say that the ALC should be connected for its
protective
value. But it should not be depended on to control output level -- the exciter
should be
adjusted to produce approximately the drive required for full
If increased distortion is guaranteed, why doesn't it show on the spectrum
scope?
We are obviously missing something here.
73 de W6BK
On May 15, 2010, at 11:03 AM, Vic K2VCO wrote:
Sorry, with all due respect this is HORRIBLE advice.
I won't argue with those that say that the ALC should
Because if you are using something you can measure, like two tone, the
gains are already set and steady. To measure leading edge distortions
before an AGC loop or loops bite and settle takes some pretty
expensive lab equipment, both before and after the transmitter/amp.
What you got?
It IS
: Saturday, May 15, 2010 11:03 AM
Subject: Re: [Elecraft] K3 - SPE Expert 1K-FA and ALC
Sorry, with all due respect this is HORRIBLE advice.
I won't argue with those that say that the ALC should be connected for its
protective
value. But it should not be depended on to control output level
there are enough bad sounding stations already on
the air, especially on sideband.
Rob K6RB
- Original Message -
From: Vic K2VCO v...@rakefet.com
To: elecraft@mailman.qth.net
Sent: Saturday, May 15, 2010 11:03 AM
Subject: Re: [Elecraft] K3 - SPE Expert 1K-FA and ALC
Sorry
Any time the gain of the system changes, there's distortion. In SSB mode, I
would expect
it to occur when the ALC voltage changes, such as at the beginning of
syllables, etc.
On 5/15/2010 3:10 PM, David M. Elliott wrote:
In general, I would agree with You and Guy and Vic.
However,
or TGA(transmitter gain
adjustment) knob.
John
--- On Sat, 5/15/10, Vic K2VCO v...@rakefet.com wrote:
From: Vic K2VCO v...@rakefet.com
Subject: Re: [Elecraft] K3 - SPE Expert 1K-FA and ALC
To: David M. Elliott immondi...@earthlink.net
Cc: elecraft@mailman.qth.net
Date: Saturday, May 15, 2010
However, Gianfranco of SPE (Expert) suggests running the
exciter at full power. He says there is no splatter and
the proof of the pudding is in the eating. That seems
to be true. I can't see any splatter on the WaveNode and
several on the air tests report fine audio with no
splatter.
I
Hi Dave,
Thank you for the pictures. Worth thousand words, etc. And there IS
difference between the two. Can you detail the setup from end to end,
particularly your RX setup and K3 TX voice settings?
I'm not sure what your audio waveform is from exactly in A and B,
you'll need to tell us. But
Thanks Guy for the well thought out response. Now we are getting somewhere.
The setup is a K3 using an Elecraft hand microphone feeding an Expert 1K FA
solid state linear to a Windom antenna. The detector is a WaveNode WM2. The
RF sensor module is between the Expert and the Antenna. The
All,
Here is the statement from the developer of the SPE Expert 1K-FA - regarding
ALC, quoted from an early Expert Reflector:
I hope this will clarify the SPE Expert vs K3 - and ALC !!
Please excuse me if I step on someones toes..
quote
*The Elecraft K3 had positive-going ALC, too.
*We really suggest to always leave the transceiver's output
power manual*
*control to its maximum level because the EXPERT, thanks to
its exclusive*
*design, will provide to control that level as long as the
required optimal*
*value will be reached.*
*Elecraft has only to implement a very fast
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