Read: http://www.comportco.com/~w5alt/cw/cwindex.php?pg=5
"CW Bandwidth" by W5ALT
seems everyone in this debate has some valid points. I found this by
searching on "CW bandwidth".
73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com
Thread has been ended.
Eric
Moderator
/elecraft.com/
On 3/30/2016 9:01 AM, Jim Brown wrote:
Guy has it exactly right.
73, Jim K9YC
On Wed,3/30/2016 8:18 AM, Guy Olinger K2AV wrote:
If the rise and fall data curves used for "keying" vary their "sharpness"
according to speed, then the
Guy has it exactly right.
73, Jim K9YC
On Wed,3/30/2016 8:18 AM, Guy Olinger K2AV wrote:
If the rise and fall data curves used for "keying" vary their "sharpness"
according to speed, then the description bandwidth increases by speed
certainly does apply. But if not, the bandwidth is governed
Let's end this thread at this time in the interest of relieving other readers
from overload.
If you feel compelled to continue the CW b/w discussion, please take it to
private email.
73,
Eric
/elecraft.com/
On 3/30/2016 8:18 AM, Guy Olinger K2AV wrote:
One could discourse all day on what
One could discourse all day on what "proper" is in this context without
ever a precise consensus among educated gentlemen. At some point of "ugly"
we would all agree that anything that sounds like that is improper.
When the only stateful levels were strictly on and off, and the rise and
fall
aft@mailman.qth.net>
Sent: Wednesday, March 30, 2016 9:21 AM
Subject: Re: [Elecraft] [K3] Tokyo Hy-Power HL-1.2KFX amp interfacing (to
ALC or not to ALC?)
Unfortunately the guys who wrote the rules failed to understand the
physics and the math. They were WRONG, and it is a misconception und
On 3/30/2016 12:21 AM, Jim Brown wrote:
> Unfortunately the guys who wrote the rules failed to understand the
> physics and the math.
No Jim, you are wrong here. CW is a carrier modulated by a digital
(on/off keyed) signal of a given (baud) rate. That keying will
generate sidebands +/- the
Unfortunately the guys who wrote the rules failed to understand the
physics and the math. They were WRONG, and it is a misconception under
which we have been laboring for as long as I've been a ham. It was Henry
Ott who woke me up to this when I took his 3-day class on EMC around
2003-4. Henry
>> On 3/29/2016 10:38 AM, Jim Brown wrote:
WRONG! CW speed has NOTHING to do with bandwidth, which is
determined by RISE and FALL times of the keying waveform and
distortion in the RF stages.
The standard word "paris" has 48 elements. That makes the baud rate
for CW (48/60) x WPM or 0.80 x
On Tue,3/29/2016 11:28 AM, Lynn W. Taylor, WB6UUT wrote:
On 3/29/2016 10:38 AM, Jim Brown wrote:
WRONG! CW speed has NOTHING to do with bandwidth, which is determined
by RISE and FALL times of the keying waveform and distortion in the
RF stages.
So, I can occupy zero bandwidth at 10,000 wpm CW
On Tue,3/29/2016 10:13 AM, Edward R Cole wrote:
CW actually has bandwidth though at 5wpm probably not measurable
WRONG! CW speed has NOTHING to do with bandwidth, which is determined by
RISE and FALL times of the keying waveform and distortion in the RF stages.
I strongly agree that
I thought the best way to drive an amplifier was to increase drive
until output no longer increased proportional to input; eg output
increases 3-dB with an 3-dB increase in drive is linear. Isn't the
point the increase drops 1-dB the upper limit?
That is how I determine best drive level on
I have a THP HL-1.2KFX that I used before the acquisition of my K3. It is a
reliable and resilient amp and I have had the ALC connected to the K3 for a
year. However
I tend to take Don Wilhelms advice and there have been times when the ALC and
SWR inputs to the AMP’s logic seem to fight each
John,
I don't know what other folks do, and I don't have an amplifier, BUT ---
Using amplifier ALC is a good way to create splatter on the bands, so it
should not be used if you are to present a clean signal. ALC can be
used as a crude means of power control - the amplifier is overdriven, so
I'm considering adding a THP HL-1.2KFX solid state amp to the K3S station I
have, and was wondering how others have done this. There seems to be
conflicting info on the "right way" to do things.
1. The THP manual states that ALC should be used to control the amp, but
2. Elecraft support (and
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