[Elecraft] Elecraft CW Net Announcement

[kevinr]

Good Evening,

    It is definitely the rainy season; only a few times has the rain 
actually stopped.  No gulley washers, just steady, soaking rain.  The 
smell of the forest changes a great deal from the dry summer spice to 
the musky, wet scents of decay.  If anything the steady rain of fir 
needles has increased.


   The sun is having its season too.  Ten days now without a spot.  But 
there have been strikes of solar wind.  SFU is in the 60s so I expect 
conditions to be weaker but quieter.


   Notice the time change.  Local time stays the same (at least in 
those parts of the world who participate in Daylight Savings Time).


Please join us tomorrow on:

   14050 kHz at 2300z Sunday (3 PM PST Sunday)
    7045 kHz at 0100z Monday (5 PM PST Sunday)

    73,
    Kevin. KD5ONS

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Re: [Elecraft] KX3: CM500 best price/use with

[Jim Brown]

On 11/11/2017 7:35 PM, Bob McGraw K4TAX wrote:
It is not deficient in high end, it has an abundance of low end. If it 
concerns you, attenuate the low end.  Never boost the high end. You'll 
have better sounding audio. 


Exactly right. Virtually all mics should have the low end rolled off for 
use in a ham station. This will also help a lot with wind noise and with 
other noise in the shack. Go to TXEQ and start by setting the bottom 
three sliders to full cut (that is, -18 dB), and the fourth slider to 
cut at least 6 dB. Most mics benefit from 3-6 dB of boost on the two 
highest bands, but no more.


For directional mics like Bob is describing, you may want to cut the 
fourth band even more. This is the time to get signal reports from 
trained listeners. The objective is to have good, crisp vocal sounds, 
but with very little bass. Bass wastes transmitter power, makes speech 
harder to understand, and also boosts noise.


73, Jim K9YC

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Re: [Elecraft] KX3: CM500 best price/use with

[Bob McGraw K4TAX]

It is a dynamic mike of which is typical of all dynamic mikes that 
exhibit proximity effect.  The closer to the mouth, the more bottom 
end.  It is a mike to mouth distance issue and 1" to 2"  or so makes a 
big difference.


It is not deficient in high end, it has an abundance of low end. If it 
concerns you, attenuate the low end.  Never boost the high end.  You'll 
have better sounding audio.


73

Bob, K4TAX


On 11/11/2017 9:07 PM, Michael Walker wrote:
I have used the Koss SB40 as well, but I think you will find there is 
no high end on the Mic and you really have to do some EQ work to make 
it sound normal.


73, mike va3mw

On Sat, Nov 11, 2017 at 5:32 PM, Bob McGraw K4TAX > wrote:


I use the Koss SB-40 which has a dynamic mike. No bias needed.

Bob, K4TAX


Sent from my iPhone

> On Nov 11, 2017, at 3:51 PM, > > wrote:
>
> I was also confused by the posts that the CM500 works best with
bias off.
> Thanks for explaining why this works only with the KX3/KX2.
>
> John KK9A
>
>
> Don Wilhelm wrote:
> Sat Nov 11 10:23:55 EST 2017
>
> Yes, all electret microphones must have bias applied in some manner.
> I am not certain why you think this is a KX3 "problem".
> The tip and ring connected together is a characteristic of all
> microphones intended primarily for computer use - and the Yamaha
CM500
> is one of those.  The ham microphones normally have a mono plug,
and do
> not apply, although with mono plugs, MIC BTN must be turned off
in the
> KX3/KX2 so that PTT is not activated when the mic plug is
inserted (the
> shell grounds the PTT ring).
> The normal computer jack applies bias to the ring, not the tip.
> In the KX3, there is residual voltage from the MIC BTN circuit
applied
> to the ring even with MIC BTN turned off - the combination of
the tip
> and ring connected together and the residual voltage from the
mic button
> circuit in the KX3/KX2 is why it works that way.
>
> That is true of both the KX2 and KX3 - yes, it does not apply to the
> K3/K3S which has no connection to the ring contact in the jack.
>
> So not a "problem", it is just the way things work.
>
> 73,
> Don W3FPR
>
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Re: [Elecraft] KX3: CM500 best price/use with

[mfsj]

I have found the best headset to be the RadioSport that has interchangeable 
mics to use with my Elecraft and Flex 6xxx series radios.73,
Fred/N0AZZ
 Original message From: Michael Walker  
Date: 11/11/17  9:07 PM  (GMT-06:00) To: Bob McGraw K4TAX  
Cc: "Elecraft@mailman.qth.net" , j...@kk9a.com 
Subject: Re: [Elecraft] KX3: CM500 best price/use with 
I have used the Koss SB40 as well, but I think you will find there is no
high end on the Mic and you really have to do some EQ work to make it sound
normal.

73, mike va3mw

On Sat, Nov 11, 2017 at 5:32 PM, Bob McGraw K4TAX 
wrote:

> I use the Koss SB-40 which has a dynamic mike. No bias needed.
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
> > On Nov 11, 2017, at 3:51 PM,   wrote:
> >
> > I was also confused by the posts that the CM500 works best with bias off.
> > Thanks for explaining why this works only with the KX3/KX2.
> >
> > John KK9A
> >
> >
> > Don Wilhelm wrote:
> > Sat Nov 11 10:23:55 EST 2017
> >
> > Yes, all electret microphones must have bias applied in some manner.
> > I am not certain why you think this is a KX3 "problem".
> > The tip and ring connected together is a characteristic of all
> > microphones intended primarily for computer use - and the Yamaha CM500
> > is one of those.  The ham microphones normally have a mono plug, and do
> > not apply, although with mono plugs, MIC BTN must be turned off in the
> > KX3/KX2 so that PTT is not activated when the mic plug is inserted (the
> > shell grounds the PTT ring).
> > The normal computer jack applies bias to the ring, not the tip.
> > In the KX3, there is residual voltage from the MIC BTN circuit applied
> > to the ring even with MIC BTN turned off - the combination of the tip
> > and ring connected together and the residual voltage from the mic button
> > circuit in the KX3/KX2 is why it works that way.
> >
> > That is true of both the KX2 and KX3 - yes, it does not apply to the
> > K3/K3S which has no connection to the ring contact in the jack.
> >
> > So not a "problem", it is just the way things work.
> >
> > 73,
> > Don W3FPR
> >
> > __
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Re: [Elecraft] KX3: CM500 best price/use with

[Ignacy]

VOX is KX3 is pretty good. But outside it is activated by wind. 
Elecraft sells  KX3-PCKT cables that include the PTT connection. 
CM-500 is fine if you are on a limited budget or don't try anything else.
After buying Sennheiser PC350, CM500 (worn by time) is gathering dust.  
For KX3, I am using GE foldable headset. Good sound but not closed. Much
smaller than CM-500 and $8.75 at Walmart.
Ignacy, NO9E



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Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] KX3: CM500 best price/use with

[Michael Walker]

I have used the Koss SB40 as well, but I think you will find there is no
high end on the Mic and you really have to do some EQ work to make it sound
normal.

73, mike va3mw

On Sat, Nov 11, 2017 at 5:32 PM, Bob McGraw K4TAX 
wrote:

> I use the Koss SB-40 which has a dynamic mike. No bias needed.
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
> > On Nov 11, 2017, at 3:51 PM,   wrote:
> >
> > I was also confused by the posts that the CM500 works best with bias off.
> > Thanks for explaining why this works only with the KX3/KX2.
> >
> > John KK9A
> >
> >
> > Don Wilhelm wrote:
> > Sat Nov 11 10:23:55 EST 2017
> >
> > Yes, all electret microphones must have bias applied in some manner.
> > I am not certain why you think this is a KX3 "problem".
> > The tip and ring connected together is a characteristic of all
> > microphones intended primarily for computer use - and the Yamaha CM500
> > is one of those.  The ham microphones normally have a mono plug, and do
> > not apply, although with mono plugs, MIC BTN must be turned off in the
> > KX3/KX2 so that PTT is not activated when the mic plug is inserted (the
> > shell grounds the PTT ring).
> > The normal computer jack applies bias to the ring, not the tip.
> > In the KX3, there is residual voltage from the MIC BTN circuit applied
> > to the ring even with MIC BTN turned off - the combination of the tip
> > and ring connected together and the residual voltage from the mic button
> > circuit in the KX3/KX2 is why it works that way.
> >
> > That is true of both the KX2 and KX3 - yes, it does not apply to the
> > K3/K3S which has no connection to the ring contact in the jack.
> >
> > So not a "problem", it is just the way things work.
> >
> > 73,
> > Don W3FPR
> >
> > __
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> >
>
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Re: [Elecraft] KX3: CM500 best price/use with

[Bob McGraw K4TAX]

I use the Koss SB-40 which has a dynamic mike. No bias needed. 

Bob, K4TAX


Sent from my iPhone

> On Nov 11, 2017, at 3:51 PM,   wrote:
> 
> I was also confused by the posts that the CM500 works best with bias off.
> Thanks for explaining why this works only with the KX3/KX2.
> 
> John KK9A
> 
> 
> Don Wilhelm wrote: 
> Sat Nov 11 10:23:55 EST 2017
> 
> Yes, all electret microphones must have bias applied in some manner.
> I am not certain why you think this is a KX3 "problem".
> The tip and ring connected together is a characteristic of all 
> microphones intended primarily for computer use - and the Yamaha CM500 
> is one of those.  The ham microphones normally have a mono plug, and do 
> not apply, although with mono plugs, MIC BTN must be turned off in the 
> KX3/KX2 so that PTT is not activated when the mic plug is inserted (the 
> shell grounds the PTT ring).
> The normal computer jack applies bias to the ring, not the tip.
> In the KX3, there is residual voltage from the MIC BTN circuit applied 
> to the ring even with MIC BTN turned off - the combination of the tip 
> and ring connected together and the residual voltage from the mic button 
> circuit in the KX3/KX2 is why it works that way.
> 
> That is true of both the KX2 and KX3 - yes, it does not apply to the 
> K3/K3S which has no connection to the ring contact in the jack.
> 
> So not a "problem", it is just the way things work.
> 
> 73,
> Don W3FPR
> 
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[Elecraft] WTB XV222

[Robert Lusby]

WTB XV222.  Looking for an XV-222 transverter.  Contact off list please 
k9...@comcast.net mailto:k9...@comcast.net .  Thanks, Bob. 
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[Elecraft] KX3: CM500 best price/use with

[john]

I was also confused by the posts that the CM500 works best with bias off.
Thanks for explaining why this works only with the KX3/KX2.

John KK9A


Don Wilhelm wrote: 
Sat Nov 11 10:23:55 EST 2017

Yes, all electret microphones must have bias applied in some manner.
I am not certain why you think this is a KX3 "problem".
The tip and ring connected together is a characteristic of all 
microphones intended primarily for computer use - and the Yamaha CM500 
is one of those.  The ham microphones normally have a mono plug, and do 
not apply, although with mono plugs, MIC BTN must be turned off in the 
KX3/KX2 so that PTT is not activated when the mic plug is inserted (the 
shell grounds the PTT ring).
The normal computer jack applies bias to the ring, not the tip.
In the KX3, there is residual voltage from the MIC BTN circuit applied 
to the ring even with MIC BTN turned off - the combination of the tip 
and ring connected together and the residual voltage from the mic button 
circuit in the KX3/KX2 is why it works that way.

That is true of both the KX2 and KX3 - yes, it does not apply to the 
K3/K3S which has no connection to the ring contact in the jack.

So not a "problem", it is just the way things work.

73,
Don W3FPR

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Re: [Elecraft] KX3: CM500 best price/use with

[Brian Hunt]

Don, thanks for the explanation.  When I set up my KX2 for SSB (rarely 
used) I tried a lite weight Logitech computer headset. Going against 
conventional wisdom, I found it sounded better with the MIC BIAS OFF, 
now I know why.  The MIC BIAS entry in the Menu Functions section of the 
manual does say "try it both ways" so I didn't feel bad leaving it off.  
Learn something every day reading this forum!


73,
Brian, K0DTJ


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Re: [Elecraft] KX3: CM500 best price/use with

[Edward R Cole]

Walter had the best suggestions so I will follow up in that direction.

VOX is not a good choice so PTT is needed and Walter has it 
covered.  Interesting info on logic vs mic bias, etal.


Microwave gear is near as complicated as doing eme.  I have 
transverter, separate 2w PA, separate preamp, sma TR relay, sequencer 
and KX3-2M driving transverter with 1w.  All has to be mounted with 
18-inch dish on  a tripod for hand transportable station (since good 
operating spots are often not drivable).


I'm thinking to bring my handtruck for hauling battery, portable 
station in Pelican 1620 case, tripod and antenna.  Area on Keweenaw 
Peninsula of UP Michigan near Copper Harbor going to be an 
adventure.  Photos on FB and my website (after).  Janet does a fine 
job posting a daily photo record of our travels on her FB (Janet Cole).


Thanks for all the info and tips.  CM500 will get good use in my home 
station with the K3 and FT-736R, as well.


73, Ed - KL7UW

From: Walter Underwood 
To: Edward R Cole ,Elecraft Reflector

Subject: Re: [Elecraft] KX3: CM500 best price/use with
Message-ID: 
Content-Type: text/plain;   charset=utf-8

You can plug the CM500 mic straight in to the KX3. You need to 
disable the mic button and make sure mic bias is on.


Or, a regular stereo to mono splitter will give cleaner bias for the 
mic and will pull out the PTT line to a separate jack. Details here:


https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/


73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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Re: [Elecraft] kxpd3 question

[Jim Brown]

On 11/11/2017 9:45 AM, dyarnes wrote:

I don’t think it is accurate to suggest that CW was used to keep people out of 
the hobby.


For at least the last 20-30 years of the 20th century, CW was used as a 
means of keeping the hobby "pure," a "rite of passage" that all current 
licensees had had to take, and that, anyone else wanting to enter their 
hallowed ground must also take. You had to be not paying attention not 
to be aware of this. It was easy to not be paying attention -- many of 
us, including me, were on and off the air for decades at a time as we 
lived our lives with jobs, families, even other interests. This was not 
unique to the US -- the CW requirement was from international 
governmental bodies.


Our large contesting club includes at least a dozen no-code licensees 
who have developed into fine CW operators and serious contesters. 
Recently, I heard of a ham club a few hours away from me that developed 
out of the interest of a local community organization in emergency 
communications -- this is a low population density community in the 
Santa Cruz mountains north of me, where the potential hazards are 
wildland fires, winter storms, and earthquakes.


Here's a link to photos from this year's Field Da. Notice the number of 
young hams on the air in the photos of the stations.


http://www.sc4arc.org/groups/general/forum/topic/field-day-photos/

Some of the photos show a pretty serious effort with antennas, and 
communications on their blog show well organized planning. There's a 
photo of their score summary in one of the photos. All SSB and digital. 
Here's their home page.


http://www.sc4arc.org/

73, Jim K9YC

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Re: [Elecraft] kxpd3 question

[dyarnes]

Eric and all,

Will all due respect, I couldn’t disagree with you more!  First, I don’t think 
it is accurate to suggest that CW was used to keep people out of the hobby.  
The requirement for this skill was much less obtuse than that.  It was simply 
due to the fact that CW was/is probably the most basic method of 
communicating—at least it was for a long time.  You could touch two wires 
together and send a coherent message!  The device necessary to transmit such a 
signal was about as simple as it gets.  CW is still far more efficient and 
effective than voice modes unless you use considerably more power with the 
latter.  One shouldn’t lose sight of the fact that a dominant reason for us 
even being allowed to practice this hobby was that we could be a reliable 
alternative in case of emergency.  There was a lot of competition for our place 
in the spectrum.

I don’t disagree that “perfect code” isn’t a mandate, but I do think it should 
be an objective.  The farther away you get from perfect code, the less coherent 
it becomes.  The closer you get to perfect code, the easier it is to interpret! 
 Plain and simple!  

I hear a lot of crap CW on the bands.  Some of it comes from folks who are just 
not very good at it, but are trying to get better.  I’m not so bothered by 
that.  However, those who don’t do CW very well, and don’t care, and don’t have 
any intention of getting better at it, don’t interest me very much.  Trying to 
copy bad CW is a lot of work, and it is rather frustrating.  If I’m helping 
someone get better, it is worth it, but if I am just enabling someone to not 
get better, I don’t see the point of it.  

As to the comparisons to accents that Ron made in his post, I would suggest 
that there is a distinction as to degree.  It’s one thing to be “identifiable” 
because of some slight variation from perfect code, much like an accent in 
language is, but it is a completely different thing to be so far from perfect 
code that you become hard to interpret.  That’s not just an accent, but more 
like using poor grammar!  CW is, in effect, a language, and should be 
recognizable without excessive strain.  

My CW is far from perfect, but I try to make it sound as much “by the book” as 
I can.  I definitely don’t try to jazz it up like some people do.  Every so 
often someone comments that they find it easy to copy.  I’d much rather hear  a 
comment like that than have someone say they recognized my because of my accent!

Cheers!

Dave W7AQK


From: Eric J 

I'm with Ron. I've been in the hobby since 1957. CW has always been used 
as some sort of ham radio purity test. It was used to keep people out of 
the hobby altogether for decades. Many of those who persevered, learned 
the code under duress to get their license, then never touched a key 
again. And there's no evidence CW as a gatekeeper prevented lids as many 
of the worst offenders were General class or higher who had to have 
passed a code test.

As empty as the CW portions are now, except during any contest, I 
welcome anyone who knows enough code to make a QSO. Perfect code is not 
necessary for reliable communication. Besides, I love hearing all the 
various fists, and enjoy recognizing individuals by their fist.

Eric KE6US

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Re: [Elecraft] KX3: CM500 best price/use with

[Don Wilhelm]

Knut,

Yes, all electret microphones must have bias applied in some manner.
I am not certain why you think this is a KX3 "problem".
The tip and ring connected together is a characteristic of all 
microphones intended primarily for computer use - and the Yamaha CM500 
is one of those.  The ham microphones normally have a mono plug, and do 
not apply, although with mono plugs, MIC BTN must be turned off in the 
KX3/KX2 so that PTT is not activated when the mic plug is inserted (the 
shell grounds the PTT ring).

The normal computer jack applies bias to the ring, not the tip.
In the KX3, there is residual voltage from the MIC BTN circuit applied 
to the ring even with MIC BTN turned off - the combination of the tip 
and ring connected together and the residual voltage from the mic button 
circuit in the KX3/KX2 is why it works that way.


That is true of both the KX2 and KX3 - yes, it does not apply to the 
K3/K3S which has no connection to the ring contact in the jack.


So not a "problem", it is just the way things work.

73,
Don W3FPR

On 11/11/2017 9:12 AM, ab2tc wrote:

Hi,

This thread had me thoroughly confused for a while, but I now realize that
it applies to the KX3 and KX3 *only*. It does *not* apply to the K3 which
*must* have bias turned on to use any Electret microphone, whether by Heil,
Yamaha or Koss. In the K3 the ring on the microphone socket is *floating*
and can obviously not by used for an alternate source of bias.

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Re: [Elecraft] KX3: CM500 best price/use with

[ab2tc]

Hi,

This thread had me thoroughly confused for a while, but I now realize that
it applies to the KX3 and KX3 *only*. It does *not* apply to the K3 which
*must* have bias turned on to use any Electret microphone, whether by Heil,
Yamaha or Koss. In the K3 the ring on the microphone socket is *floating*
and can obviously not by used for an alternate source of bias. I verified
that the Yamaha and Koss both have the tip and ring connected together. The
Heil comes with a mono (TS) plug. All of this is compatible with the K3 if
the bias is turned on. I am not sure what's up with the KX3 and the
"cleaner" audio achieved with the bias turned off. It seems to me that this
is not a choice that users should have to make. Until I saw this thread, as
far as I know the advice was to always (for both the K3 and the KX3) turn
bias on to use any Electret microphone

AB2TC - Knut


Don Wilhelm wrote
> Ed,
> 
> You can use the stereo mic connector directly into the KX3 if you turn 
> MIC BTN off in the menu.  You should also turn off MIC BIAS which 
> results in a cleaner signal - the mic then gets its bias from the LOGIC 
> residual voltage that is normally applied to the ring.
> 
> You can use the XMIT button to initiate transmit, or use VOX.
> That may be inadequate for your purposes since you need to activate PTT 
> from your sequencer.  The only alternative is to build a special cable 
> or as has been suggested several times on this reflector, use an adapter 
> with a stereo male plug and one jack that connects to the ring and 
> another to the tip.  You might search the archives to see some of the 
> sources and part numbers.  If you use an adapter like that, you do not 
> have to turn off MIC BTN and MIC BIAS.
> The stereo plug does connect the LOGIC ground and the Signal ground 
> together, but no apparent harm has been mentioned because of that.
> 
> 73,
> Don W3FPR
> 





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[Elecraft] WTB: KXV3-KXV3A - Found

[Dany VE2EBK]

Hi all,

Thanks for responses

Module is found

Dany VE2EBK


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