Re: [Elecraft] Not necessarily an Elecraft subject!

[Tony Morgan]

Another possibility:
http://extendadot.com/

73,
Tony W7GO


James Harris wrote:
> Good evening, All.
>  
> I recently acquired a Vibroplex "Original" with the idea of learning to use 
> it attached to my K3/100 [S/N 2802].  I need to slow it down until I can get 
> the "gist" of it.  I can now work at 18-22 wpm with my Iambic.  But I 
> wouldn't dare try to get on the air even at the "bugs" slowest speed 
> adjustment which is in the range of 30 wpm.
>  
> I would like to buy, lease or borrow a Varispeed {for a round shaft] until I 
> can get up to speed with my new toy.  They are no longer available from 
> Vibroplex.
>  
> I'd like to hear from anyone having such a device.   
>  
> Thanks & Best 73.
>  
> Jim.
> WA4NTM
>  
> PS - I truly appreciate being able to use my K3 as a "practice keyer".  You 
> know, in the TEST mode.  Thanks all the guys & gals @ Elecraft and the design 
> team.  What a fantastic machine which never ceases to amaze.
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[Elecraft] Varispeed!

[capobs1]

Good evening, Bob. I saw you WTB a Bug Tamer on Nabble although the posting is 
several years old.  It says you already have a Varispeed.  Is the Varispeed 
surplus to you now?  I'd be interested as I've just obtained an Original and 
need to calm it down while learning to use it.  I really could use the 
Varispeed if it'll fir an Original "round shaft".  Thanks and Best 73.  
Jim.WA4NTM
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Re: [Elecraft] KX1 headphones

[Don Wilhelm]

Wes,

I agree with you completely.  The headphone response should not be the 
limiting factor. - headphones should be designed for fidelity, not a 
constrained response.

If the audio response must be tailored, it should be done before the 
headphones - the RX response or though the use of an AF low pass filter.

Some may disagree, but I believe good high fidelity response in the 
headphones is important.  If the response is not right, the place to fix 
it is in whatever is before the headphones.

I do accept that 'communications headphones' will do the job, but they 
are usually an effective low pass filter in combination with a full 
range set of headphone transducers.

73,
Don W3FPR

Wes Stewart wrote:
> I concur 100% with Brett (for a change).  Filtering should be done 
> electronically where it can be controlled, not mechanically where all it does 
> is add distortion.
>
> It was a revelation when I was first working EME in the early eighties and 
> was still using some military "communications" headphones and I changed over 
> to some Koss "hi-fi" phones and an in-line 200 Hz wide LC filter.  There were 
> signals buried in that mush that was all I was hearing with the 
> "communications" phones.
>
> Later I bought into the brand "H" hype and got a headset at my local ham 
> emporium.  After about five minutes of listening, I took them back. They were 
> simply awful!  I don't think much of the microphones either, even though they 
> are wildly popular.
>
> It's hard to beat a nice passive LC brute force filter.  They can clean up a 
> multitude of sins that we are presented with by the afterthought audio stages 
> in modern transceivers.
>
> Wes  N7WS
>
>
>   
>
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[Elecraft] K1 Antenna Suggestions

[hmss007]

Hi Everyone:

I finished my K1 (#2606) a few months ago, and have had great luck with it.  My 
current question stems from the fact I've returned to college and am living in 
a college apartment building.  

My question, simply stated, is what antenna you might think I'll have the best 
luck with in a less than ideal setting.  My K1 has the two band filter board 
(40 and 20 Meters) and the autotuner and noise blanker are installed.  My dorm 
room has a perimeter of about 40 feet so I was thinking about some wire around 
the room with the appropriate radials hanging out the window.  

Naturally, the property management "strictly prohibits" transmitters in the 
apartments, so my antenna will need to be somewhat of a stealth installation.  
If anyone has experience with college dorm room installations, I'd really 
appreciate hearing your suggestions.  The K1 has been a joy to work with, and 
I'm hoping it'll help me get through my last year of law school!  
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[Elecraft] WTB: K2/100 RS 232 Computer Interface Cable

[Craig Maxey]

I have misplaced my K2/100 RS232 Computer Interface Cable. Does anyone have an 
extra one for sale? Craig, AH8DX
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Re: [Elecraft] Not necessarily an Elecraft subject!

[Ron D'Eau Claire]

I do the same as Bob with a Vibroplex I "inherited" when my buddy's XYL gave
it to me when he became an SK. You can see it at work with its original
owner, complete with cable clamp, at RCA station KPH in the top photograph
on this page:

http://www.radiomarine.org/historic-5.html

That Vibroplex was the second one LR (the original owner) had, purchased in
the early 1960's. (LR had served in the Merchant Marine through WWII). 

Doing some research into this key I discovered that, for reasons never
explained to me, Vibroplex made a number of bugs with a very thick pendulum
spring compared to earlier (and, I believe, later models). The impact of
that thick pendulum was to cause the pendulum to vibrate *very* fast. Not
even all the weights Vibroplex sold could bring its dit speed below 30 WPM -
way too fast for commercial or normal Ham use. Hence, the heavy weight. Some
Vibroplex keys with thinner springs are controlled nicely using just the
standard Vibroplex weights. 

The disadvantage of the cable clamp is that it gives the key a very heavy
'feel'. There's a *lot* of inertia in that weight which the thumb has to
overcome to start dits.

An option is to extend the length of the pendulum. I have "tamed" LR's key
by adding a large alligator clip to the end of the pendulum, positioned so
the jaws gripped the top and bottom of the bar so as to not interfere with
the damper. Extra weight from a few wraps of solder around the end or a nut
threaded onto the end of the alligator clip will slow it further. That
brought the pendulum speed well down below 20 WPM without adding lots of
weight. 

Some fellows have used clothes pins and other additions to accomplish the
same thing. 

There are a couple of commercial products available. One is the "bug tamer"
- an extension to the pendulum (adding length slows it down much more easily
than adding weight). Another is the "Vari Speed" that is a mixture. It is
shown here:

 http://www.visradio.com/cata/vib-vs.html

It works well provided you tighten the screws enough so that it doesn't
suddenly start to flop about in the middle of a transmission, Hi! 

But I still prefer the cable clamp like LR did. It works very well and, for
me, it's a nod to "tradition" that LR started half a century ago with that
particular key.

Ron AC7AC


-Original Message-
If you can't find one, try using a 1/4" wire rope clamp with the legs
pointing "up". It's easily adjusted but stays in place when the nuts
are hand-tightened. I use one on an Original I've set up for slower
speeds. I lined the saddle of the clamp with a piece of vinyl
electrical tape so it doesn't scratch the shaft.

Bob NW8L

On Sat, Aug 22, 2009 at 6:27 PM, James Harris wrote:
> Good evening, All.
>
> I recently acquired a Vibroplex "Original" with the idea of learning to
use it attached to my K3/100 [S/N 2802].  I need to slow it down until I can
get the "gist" of it.  I can now work at 18-22 wpm with my Iambic.  But I
wouldn't dare try to get on the air even at the "bugs" slowest speed
adjustment which is in the range of 30 wpm.
>
> I would like to buy, lease or borrow a Varispeed {for a round shaft] until
I can get up to speed with my new toy.  They are no longer available from
Vibroplex.
>
> I'd like to hear from anyone having such a device.
>
> Thanks & Best 73.
>
> Jim.
> WA4NTM
>

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Re: [Elecraft] KX1 headphones

[Mike Morrow]

>The filtering should be done before the audio gets to the headphones.
>A low end pair of headphones only acts to cover up flaws in receiver
>design.

What an imaginative and creative response!   You say in effect that all
those purpose-designed limited frequency response audio devices that
communcations engineers have created for many decades are completely
unnecessary if only one has a properly designed receiver.  Please, give us some
examples of such receivers which are not aided by the use of properly
designed narrow response audio devices.

We were discussing the KX1.  Is that on your list?  Do you contest the benefit
of narrow response headphones here?   (HINT:  I have many receivers better
than the KX1, still proper frequency response limited headsets help.)

If you have no valid list, your assertion is gratuitous.

Aside from this  list, most people do not design the receiver they are 
using,
nor do they choose one designed elsewhere, with the goal of obtaining one that
allows them to use entertainment quality headphones to no disadvantage, when
when something of narrower response is better.

Here are the facts:  Regardless of receiver design, even for communication 
receivers
of the highest quality, it is ALWAYS very helpful to use properly designed 
communications headsets, as opposed to expensive (or cheap) hi-fi entertainment 
sets.
There are NO exceptions to this.

Mike / KK5F
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Re: [Elecraft] KX1 headphones

[Wes Stewart]

I concur 100% with Brett (for a change).  Filtering should be done 
electronically where it can be controlled, not mechanically where all it does 
is add distortion.

It was a revelation when I was first working EME in the early eighties and was 
still using some military "communications" headphones and I changed over to 
some Koss "hi-fi" phones and an in-line 200 Hz wide LC filter.  There were 
signals buried in that mush that was all I was hearing with the 
"communications" phones.

Later I bought into the brand "H" hype and got a headset at my local ham 
emporium.  After about five minutes of listening, I took them back. They were 
simply awful!  I don't think much of the microphones either, even though they 
are wildly popular.

It's hard to beat a nice passive LC brute force filter.  They can clean up a 
multitude of sins that we are presented with by the afterthought audio stages 
in modern transceivers.

Wes  N7WS


--- On Sat, 8/22/09, Brett Howard  wrote:

> From: Brett Howard 
> Subject: Re: [Elecraft] KX1 headphones
> To: 
> Cc: elecraft@mailman.qth.net
> Date: Saturday, August 22, 2009, 7:05 PM
> The filtering should be done before
> the audio gets to the headphones.
> A low end pair of headphones only acts to cover up flaws in
> receiver
> design.  A good broadband pair of uncolored headphones
> should be good
> for reproducing audio as it was intended to be done
> so.  While some
> audio reproduction systems are designed to be colored they
> are by
> nature much less versatile and have narrower usage cases.
> 
> ~BTH
> 
> 
> On Sat, Aug 22, 2009 at 5:53 PM, Mike Morrow
> wrote:
> >>I would not have spent the money on my Etymotics
> just for listening to
> >>CW, but since they are great for listening to music
> with great fidelity
> >>while traveling on planes, which is something I do
> a lot of, I look at it
> >>as a bonus that they will be nice to use in
> conjunction with my KX-1
> >>once I build it.
> >
> > The absolute worst thing one can have in a speaker or
> headphones for
> > communications use is "high fidelity" and broad
> frequency response!!!
> >
> > Communications-quality audio devices are deliberately
> *designed* for limited
> > frequency response (typically about 300 to 3000 Hz).
>  Anything of higher
> > "fidelity" is adverse to quality in a communications
> device.
> >
> > One might as well eliminate receiver IF and front-end
> filtering if high
> > fidelity is the goal.  But, of course, high fidelity
> is not the goal.   Just as
> > receiver IFs with limited bandpass are desirable,
> especially for CW
> > communications, so are headphones with narrow
> frequency response.
> > Narrow frequency response helps eliminate undesired
> signals as surely
> > as that IF filter.  And since the front-end and IF
> filtering in the KX-1 is
> > limited, hi-fi entertainment headsets are the last
> thing one needs.
> >
> > QRP rig designers usually provide a headphone jack
> that accepts the common
> > entertainment-quality headphones with stereo
> connections.  That seems to
> > encourage the use of these unsatisfactory
> entertainment audio devices,
> > whether they be $5 Walmart specials or much worse,
> those wildly overpriced
> > "specialty" hi-fi headsets.
> >
> > The best earbuds for communications use that I've ever
> found are Kenwood
> > HS-7 mono earbuds, with the essential limited
> frequency response.
> > Unfortunately they haven't been available for more
> than a decade.
> >
> > If you have headsets that are spec'd for entertainment
> audio purposes, that
> > should immediately be a warning that they are far from
> optimal for communications
> > use unless nothing else is available.
> >
> > Mike / KK5F
> >




  
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[Elecraft] 3.24 Beta FW DSP comment

[Luis V. Romero]

Lyle:

Just installed the two hardware mods and the 3.24 Beta Firmware.  I was most
interested in the DSP system modifications.

The DSP parameters are now really good for SSB.  No more raspy peakyness
like before, very smooth and very effective, especially on 40 and 80 loaded
with QRN that we have here in Florida in the summer, and much less level
drop than before (but there is still some there).

Although I can understand the reticence of the CW guys who like the peaking
action of the previous DSP parameters, its very effective as it is for SSB
and not so bad for CW.

I really like it, much improved from the previous parameters.

With careful adjustment of RF gain, this combination seems like it will be a
winner in the low band battleground.  

Lu Romero - W4LT
K3 #3192 

-Original Message-
From: Lyle Johnson [mailto:k...@wavecable.com] 
Sent: Friday, August 21, 2009 8:08 PM
To: lrom...@ij.net
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] Hardware mods before update to 3.24 Beta?

> Am I correct in assuming that I *MUST* perform at least the Tuning 
> Noise Reduction hardware mod before installing 3.24 Beta and checking 
> out the new DSP NR "enhancements"?

No.

> The Automatic Front End Protection mod release notes say that the 
> firmware checks for the mod and ignores the change if the mod is not 
> there, but the Tuning Noise mod states that "erratic behavior" of the 
> rig can be expected if you install the new firmware WITHOUT adding the 
> two diodes and two resistors.

Erratic behavior *if* you go to CONFIG:VCO MD and tap "7" until you see SPI
2.

If you leave it at SPI 1, nothing has changed and it will not be erratic
(but will not have reduced noise, either).

73,

Lyle KK7P



No virus found in this outgoing message
Checked by PC Tools AntiVirus (6.0.0.19 - 10.004.078).

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Re: [Elecraft] Not necessarily an Elecraft subject!

[Bob Cunnings]

If you can't find one, try using a 1/4" wire rope clamp with the legs
pointing "up". It's easily adjusted but stays in place when the nuts
are hand-tightened. I use one on an Original I've set up for slower
speeds. I lined the saddle of the clamp with a piece of vinyl
electrical tape so it doesn't scratch the shaft.

Bob NW8L

On Sat, Aug 22, 2009 at 6:27 PM, James Harris wrote:
> Good evening, All.
>
> I recently acquired a Vibroplex "Original" with the idea of learning to use 
> it attached to my K3/100 [S/N 2802].  I need to slow it down until I can get 
> the "gist" of it.  I can now work at 18-22 wpm with my Iambic.  But I 
> wouldn't dare try to get on the air even at the "bugs" slowest speed 
> adjustment which is in the range of 30 wpm.
>
> I would like to buy, lease or borrow a Varispeed {for a round shaft] until I 
> can get up to speed with my new toy.  They are no longer available from 
> Vibroplex.
>
> I'd like to hear from anyone having such a device.
>
> Thanks & Best 73.
>
> Jim.
> WA4NTM
>
> PS - I truly appreciate being able to use my K3 as a "practice keyer".  You 
> know, in the TEST mode.  Thanks all the guys & gals @ Elecraft and the design 
> team.  What a fantastic machine which never ceases to amaze.
> __
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Re: [Elecraft] KX1 headphones

[Brett Howard]

The filtering should be done before the audio gets to the headphones.
A low end pair of headphones only acts to cover up flaws in receiver
design.  A good broadband pair of uncolored headphones should be good
for reproducing audio as it was intended to be done so.  While some
audio reproduction systems are designed to be colored they are by
nature much less versatile and have narrower usage cases.

~BTH


On Sat, Aug 22, 2009 at 5:53 PM, Mike Morrow wrote:
>>I would not have spent the money on my Etymotics just for listening to
>>CW, but since they are great for listening to music with great fidelity
>>while traveling on planes, which is something I do a lot of, I look at it
>>as a bonus that they will be nice to use in conjunction with my KX-1
>>once I build it.
>
> The absolute worst thing one can have in a speaker or headphones for
> communications use is "high fidelity" and broad frequency response!!!
>
> Communications-quality audio devices are deliberately *designed* for limited
> frequency response (typically about 300 to 3000 Hz).  Anything of higher
> "fidelity" is adverse to quality in a communications device.
>
> One might as well eliminate receiver IF and front-end filtering if high
> fidelity is the goal.  But, of course, high fidelity is not the goal.   Just 
> as
> receiver IFs with limited bandpass are desirable, especially for CW
> communications, so are headphones with narrow frequency response.
> Narrow frequency response helps eliminate undesired signals as surely
> as that IF filter.  And since the front-end and IF filtering in the KX-1 is
> limited, hi-fi entertainment headsets are the last thing one needs.
>
> QRP rig designers usually provide a headphone jack that accepts the common
> entertainment-quality headphones with stereo connections.  That seems to
> encourage the use of these unsatisfactory entertainment audio devices,
> whether they be $5 Walmart specials or much worse, those wildly overpriced
> "specialty" hi-fi headsets.
>
> The best earbuds for communications use that I've ever found are Kenwood
> HS-7 mono earbuds, with the essential limited frequency response.
> Unfortunately they haven't been available for more than a decade.
>
> If you have headsets that are spec'd for entertainment audio purposes, that
> should immediately be a warning that they are far from optimal for 
> communications
> use unless nothing else is available.
>
> Mike / KK5F
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Re: [Elecraft] KX1 headphones

[Mike Morrow]

>I would not have spent the money on my Etymotics just for listening to  
>CW, but since they are great for listening to music with great fidelity
>while traveling on planes, which is something I do a lot of, I look at it
>as a bonus that they will be nice to use in conjunction with my KX-1
>once I build it. 

The absolute worst thing one can have in a speaker or headphones for
communications use is "high fidelity" and broad frequency response!!!

Communications-quality audio devices are deliberately *designed* for limited
frequency response (typically about 300 to 3000 Hz).  Anything of higher 
"fidelity" is adverse to quality in a communications device.

One might as well eliminate receiver IF and front-end filtering if high
fidelity is the goal.  But, of course, high fidelity is not the goal.   Just as
receiver IFs with limited bandpass are desirable, especially for CW
communications, so are headphones with narrow frequency response.
Narrow frequency response helps eliminate undesired signals as surely
as that IF filter.  And since the front-end and IF filtering in the KX-1 is
limited, hi-fi entertainment headsets are the last thing one needs.

QRP rig designers usually provide a headphone jack that accepts the common
entertainment-quality headphones with stereo connections.  That seems to
encourage the use of these unsatisfactory entertainment audio devices,
whether they be $5 Walmart specials or much worse, those wildly overpriced
"specialty" hi-fi headsets.

The best earbuds for communications use that I've ever found are Kenwood
HS-7 mono earbuds, with the essential limited frequency response. 
Unfortunately they haven't been available for more than a decade.

If you have headsets that are spec'd for entertainment audio purposes, that
should immediately be a warning that they are far from optimal for 
communications 
use unless nothing else is available.

Mike / KK5F
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Re: [Elecraft] Not necessarily an Elecraft subject!

[Kevin Rock]

All you need to do is increase the inertia of the swinging arm.  Solder turned 
around the end, an alligator clip, or a tiny magnet will do the trick.  As you 
grow more accustomed to using the bug your speed will increase and you can cut 
off some of the solder.
   73 and good luck!
   Kevin.  KD5ONS


-Original Message-
>From: James Harris 
>Sent: Aug 22, 2009 8:27 PM
>To: elecraft@mailman.qth.net
>Subject: [Elecraft] Not necessarily an Elecraft subject!
>
>Good evening, All.
> 
>I recently acquired a Vibroplex "Original" with the idea of learning to use it 
>attached to my K3/100 [S/N 2802].  I need to slow it down until I can get the 
>"gist" of it.  I can now work at 18-22 wpm with my Iambic.  But I wouldn't 
>dare try to get on the air even at the "bugs" slowest speed adjustment which 
>is in the range of 30 wpm.
> 
>I would like to buy, lease or borrow a Varispeed {for a round shaft] until I 
>can get up to speed with my new toy.  They are no longer available from 
>Vibroplex.
> 
>I'd like to hear from anyone having such a device.   
> 
>Thanks & Best 73.
> 
>Jim.
>WA4NTM
> 
>PS - I truly appreciate being able to use my K3 as a "practice keyer".  You 
>know, in the TEST mode.  Thanks all the guys & gals @ Elecraft and the design 
>team.  What a fantastic machine which never ceases to amaze.
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>
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Re: [Elecraft] K2 Problem ???

[Don Wilhelm]

I have never heard it, the KAF2 clock setting is much different than the 
KDSP2. 
In either case, it does not interfere with normal operation of the DSP

73,
Don W3FPR


Hisashi T Fujinaka wrote:
> Does it happen on the KAF2 as well? I thought about getting one of those
> to play with.
>
> On Sat, 22 Aug 2009, Don Wilhelm wrote:
>
>   
>> Jim,
>>
>> That 'ticking' noise when in the DSP menu is present on all K2s with the
>> KDSP2 option.
>> I believe it is the sound of the clock updating.  It is not a problem
>> and goes away when you exit the DSP menus.  I am surprised that you just
>> now noticed it.
>>
>> 73,
>> Don W3FPR
>>
>> Jim Harris wrote:
>> 
>>> Hi,
>>>
>>> My K2 is slightly over four years old.  I only use it for portable 
>>> operations about once per month.  It has all the bells and whistles 
>>> including DSP and all needed mods are installed.  I power it with an 
>>> external battery through an MFJ battery booster.  I had to add the booster 
>>> because as the battery voltage would drop below about 11.5 volts at the 
>>> radio I would get reports of transmitted audio distortion.  I now get good 
>>> audio reports on my transmitted audio.  Since I've added the booster when I 
>>> set the display function to show the DSP parameters there is a crackling 
>>> buzzing sound in the received audio.  The other display settings do not 
>>> cause the noise.  Apparently there is no ill effect other than the annoying 
>>> noise.  Has anyone experienced this previously?  Any idea as to what is 
>>> causing the noise and how to get rid of it.
>>>
>>> Thank you.  Have a good day and 73.
>>>
>>> Jim, W0EM
>>>
>>>
>>> __
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>>>
>>>
>>> No virus found in this incoming message.
>>> Checked by AVG - www.avg.com
>>> Version: 8.5.409 / Virus Database: 270.13.64/2319 - Release Date: 08/22/09 
>>> 06:06:00
>>>
>>>
>>>   
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>> 
>
>   
> 
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com 
> Version: 8.5.409 / Virus Database: 270.13.64/2319 - Release Date: 08/22/09 
> 06:06:00
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>   
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Re: [Elecraft] Not necessarily an Elecraft subject!

[Ken Kopp]

It's crude, but you can wrap solder around the present weight, 
or add the needed number of alligator clips ... maybe even
themselves weighted with solder.

Or a wooden clothes-pin or two (;-)

73! Ken Kopp - K0PP
 elecraftcov...@rfwave.net
 http://tinyurl.com/7lm3m5



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[Elecraft] Not necessarily an Elecraft subject!

[James Harris]

Good evening, All.
 
I recently acquired a Vibroplex "Original" with the idea of learning to use it 
attached to my K3/100 [S/N 2802].  I need to slow it down until I can get the 
"gist" of it.  I can now work at 18-22 wpm with my Iambic.  But I wouldn't dare 
try to get on the air even at the "bugs" slowest speed adjustment which is in 
the range of 30 wpm.
 
I would like to buy, lease or borrow a Varispeed {for a round shaft] until I 
can get up to speed with my new toy.  They are no longer available from 
Vibroplex.
 
I'd like to hear from anyone having such a device.   
 
Thanks & Best 73.
 
Jim.
WA4NTM
 
PS - I truly appreciate being able to use my K3 as a "practice keyer".  You 
know, in the TEST mode.  Thanks all the guys & gals @ Elecraft and the design 
team.  What a fantastic machine which never ceases to amaze.
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Re: [Elecraft] K2 Problem ???

[Hisashi T Fujinaka]

Does it happen on the KAF2 as well? I thought about getting one of those
to play with.

On Sat, 22 Aug 2009, Don Wilhelm wrote:

> Jim,
>
> That 'ticking' noise when in the DSP menu is present on all K2s with the
> KDSP2 option.
> I believe it is the sound of the clock updating.  It is not a problem
> and goes away when you exit the DSP menus.  I am surprised that you just
> now noticed it.
>
> 73,
> Don W3FPR
>
> Jim Harris wrote:
>> Hi,
>>
>> My K2 is slightly over four years old.  I only use it for portable 
>> operations about once per month.  It has all the bells and whistles 
>> including DSP and all needed mods are installed.  I power it with an 
>> external battery through an MFJ battery booster.  I had to add the booster 
>> because as the battery voltage would drop below about 11.5 volts at the 
>> radio I would get reports of transmitted audio distortion.  I now get good 
>> audio reports on my transmitted audio.  Since I've added the booster when I 
>> set the display function to show the DSP parameters there is a crackling 
>> buzzing sound in the received audio.  The other display settings do not 
>> cause the noise.  Apparently there is no ill effect other than the annoying 
>> noise.  Has anyone experienced this previously?  Any idea as to what is 
>> causing the noise and how to get rid of it.
>>
>> Thank you.  Have a good day and 73.
>>
>> Jim, W0EM
>>
>>
>> __
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>> 
>>
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.409 / Virus Database: 270.13.64/2319 - Release Date: 08/22/09 
>> 06:06:00
>>
>>
> __
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-- 
Hisashi T Fujinaka - ht...@twofifty.com
BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte
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[Elecraft] N2CQ QRP Contest Calendar: Aug 22 - Sep 22, 2009

[Ken Newman]

~
N2CQ QRP CONTEST CALENDAR
August 22 - September 22, 2009
~
Worked All ARCI Challenge (CW/Dig/Ph) QRP Event!
Aug 1 thru Dec 31
Info: http://www.qrparci.org/waac
~
Summer FOX Hunt - QRP 20M CW... QRP Contest!
EDT: Each Tue, 9 PM  to 1029 PM
UTC: Each Wed, 0100z to 0229z
Info: http://www.qrpfoxhunt.org/
~
Russian Euro. PSK Club Contest (PSK63)
Aug 22, 0300z to Aug 23, 0300z
Rules: http://eu.srars.org/index.php?
~
Hawaii QSO Party (CW/SSB/Digital) ... QRP Category
Aug 22, 0700z to Aug 23, 2200z
Rules: 
http://www.karc.net/NewWebLayout/OperatingEvents/HawaiiQSOParty/hi_qso_party.html
~
Ohio QSO Party (CW/SSB) ... QRP Category
Aug 22, 1600z to Aug 23, 0400z
Rules: http://www.ohqp.org
~
SKCC Sprint (Straight Key CW)  ... QRP Awards
Aug 26, z to 0200z
Rules: http://www.skccgroup.com/sprint/sks/
~
SLOVENIA CONTEST CLUB RTTY Championship .. 100W Category
Aug 29, 1200z to Aug 30, 1159z
Rules: http://lea.hamradio.si/~scc/rtty/htmlrules.htm
~
Kansas QSO Party (CW/SSB/Digi) ... QRP Category
Aug 29, 1400z to Aug 30, 0200z and
Aug 30, 1400z to Aug 30, 2000z
Rules: http://www.ksqsoparty.org/
~
MQFD Monthly Sprint (CW/PH/Digital) *** QRP Contest ***
Aug 29, 1800z to 2200z
Rules: http://w2agn.net/mqfdsprint.html
~
Worked All ARCI Challenge (CW/Dig/Ph) QRP Event!
thru Dec 31
Info: http://www.qrparci.org/waac
~
Summer FOX Hunt - QRP 20M CW
EDT: Tue Sep 1, 9 PM  to 1029 PM
UTC: Wed Sep 2, 0100z to 0229z
Info: http://www.qrpfoxhunt.org/
~
Colorado QSO Party (SSB/CW/Digital) ... QRP Category
Sep 05, 1200z to Sep 6, 0400z
Rules: http://www.ppraa.org/coqp/
~
IARU Region 1 Fieldday (SSB)... QRP Category
Sep 05, 1300z to Sep 06, 1259z
Rules: http://www.sk3bg.se/contest/iarur1fd.htm
~
AGCW Straight Key Party (CW - 40 Meters) ... QRP Category
Sep 06, 1300z to 1600z
Rules: http://www.agcw.org/en/?Contests:Straight_Key_Party
~
Tennessee QSO Party (SSB/CW/Dig) ... QRP Category
Sep 6, 1800z to Sep 7, 0300z
Rules: http://www.tnqp.org/
~
Brazil Independence Day (PSK31) ... QRP Category
Sep 7, 000z to 2350z
Rules: http://www.cantareiradx.com/portal/
~
Michigan QRP Labor Day Sprint (CW) *** QRP CONTEST! ***
Sep 07, 2300z to Sep 08, 0300z
Rules: http://www.qsl.net/miqrpclub/contest.html
~
Adventure Radio Spartan Sprint (CW) *** QRP EVENT ***
Sep 08, 0100z to 0300z  (First Monday 9 PM EDT)
Info:
http://adventure-radio.org/wiki/index.php?title=Spartan_Sprints
~
JAY HUDAK MEMORIAL 80M SPRINT (PSK31) ... QRP Category
Sep 11, 2000 Local to 0200 Local
Rules:
http://www.podxs070.com/contests/80m_sprint_rules09.htm
~
Ohio State Parks On The Air (All) ... QRP Category
Sep 12, 1600z to 2400z
Rules: http://parks.portcars.org/
~
Worked All Europe DX Contest (SSB)   100W Power Category
Sep 12, z to Sep 13, 2400z
Rules: http://www.darc.de/referate/dx/xedcwr.htm
~
Swiss HTC QRP Sprint (CW) *** QRP Contest ***
Sep 12, 1300z to 1859z
Rules: http://www.htc.ch/de/htc_sprint_contest.htm
or: http://www.sk3bg.se/contest/htcqrpsp.htm
~
Arkansas QSO Party (CW/SSB/PSK31) ... QRP Category
Sep 12, 1400z to Sep 13, 0600z and
Sep 13, 1500z to Sep 13, 2400z
Rules: http://www.arkan.us/
~
ARRL September VHF QSO Party (All)  Low Power Category
Sep 12, 1800z to Sep 14, 0300z
Rules: http://www.arrl.org/contests/rules/2009/sepvhf.html
~
Second Class Operator Club Marathon (CW) *** QRP Contest ***
Sep 12, 1800z to 2400z
Rules: http://www.qsl.net/soc/contests.htm#top
~
QRP ARCI VHF 

Re: [Elecraft] K3 + transverter

[Ken_ke2n]

>>Try hitting A>B twice after setting up the CONFIG:XVn RF menu entry.

Thanks Eric, but that is not the problem - (by after I assume you mean after
leaving the config menu)

I have both VFO's on 216.987 (more or less) but when I try to retrieve a
value from the memory like 216.(anything) it forces the active VFO to
219.9992 (in USB).

That seems to be the lower limit of what the K3 finds "acceptable" for a
RF=222 transverter when the frequency is entered all at once (memory or
keypad+enterkey)

So it looks like there is a lower limit of 2 Mhz below the transverter
frequency.*
See my other note. My fictitious 215/21 MHz transverter lets me use
frequencies down to 212.999 - not lower.  The magic 2 MHz limit again.

The problem I am having with recalling a frequency now is that the K3 thinks
the 216.987 frequency belongs to my transverter #3 (the real 222
transverter) and automatically switches to that band - and of course with
that transverter defined as a 222 transverter, it will not accept the
frequency.  

I think maybe I need to insert the fictitious one as transverter #3 and
re-enter all the other ones up through 8.  But that is too much of a pain
since I only need two frequencies I am happy with what is memorized in vfo A
and B.

* I just thought it was really strange that I could tune the radio to that
frequency, memorize it OK and then find that the radio refuses to use the
stored frequency later ...

-- 
View this message in context: 
http://n2.nabble.com/K3-XV144-XV432-tp448253p3496538.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] Elecraft SSB Net Announcement

[Phil and Christina]

Hi gang,

The weekly Elecraft SSB net will meet Sunday, 8/23/09 at 1800Z on 14.316
MHz.  I will be away from my station and unable to be there.  Hopefully by
the net time there will be someone to step forward and act as the net
control station.  Thank you.

73,

Phil, NS7P

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Re: [Elecraft] P3 button alterations (maybe not too late)

[Brett Howard]

That has already been stated that it will work that way...


On Sat, 2009-08-22 at 11:51 -0500, Michael B wrote:
> How about being able to set the Programmable Function Buttons to change to
> what ever band you like, but not making that permanent for those of us that
> have other uses in mind.
> 
> On Sat, Aug 22, 2009 at 8:17 AM, ka9zap  wrote:
> 
> > I use the same method to band hop as Brett I still would rather operate
> > the rig with out the
> > computer soft ware controlling it old habits die slowly.
> > snip
> >
> > I honestly have gotten well used to using M>V then a number to change
> > bands and never use the BAND rocker.  I'll have things that I'd like to
> > put on those PF's but my rig won't be using them as band switching
> > buttons.  Honestly with two taps I can get a bands witch done in less
> > time than a tap and hold takes.
> >
> > Snip
> >
> > But I still miss the Band Stacking Register because I like to separate
> > my favorite cw spots from voice, might it be possiable to have this
> > [M>V] function remember two frequency's or more that might be controlled by
> > [mode] first being selected?
> >
> > Regards
> > Art
> > ka9zap
> >
> >
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> >
> 
> 
> 

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Re: [Elecraft] P3 button alterations (maybe not too late)

[Brett Howard]

I use M1-M4 for doing some of this I setup M1 for the CW portion of
the band.  I setup VFOA to the bottom of the band setup VFOB to the top
and then setup the mode and everything.  Then I do the same for SSB on
M2.  This not only gives me a quick way to go to the two band segments
but it also allows for scanning after recalling one of these memories.

~Brett 

On Sat, 2009-08-22 at 08:17 -0500, ka9zap wrote:
> I use the same method to band hop as Brett I still would rather operate 
> the rig with out the
> computer soft ware controlling it old habits die slowly.
> snip
> 
> I honestly have gotten well used to using M>V then a number to change
> bands and never use the BAND rocker.  I'll have things that I'd like to
> put on those PF's but my rig won't be using them as band switching
> buttons.  Honestly with two taps I can get a bands witch done in less
> time than a tap and hold takes.
> 
> Snip
> 
> But I still miss the Band Stacking Register because I like to separate
> my favorite cw spots from voice, might it be possiable to have this 
> [M>V] function remember two frequency's or more that might be controlled by 
> [mode] first being selected?
> 
> Regards
> Art
> ka9zap
> 
> 
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Re: [Elecraft] K3 + transverter

[Eric Swartz WA6HHQ - Elecraft]

Try hitting A>B twice after setting up the CONFIG:XVn RF menu entry.

The first time you set up a new transverter band, you should force the 
VFOs to both be in-band relative to each other.

73, Eric  WA6HHQ

_..._



Ken_ke2n wrote:
>
> I have a related question. I would like to listen on 216.99 with my 222/28
> MHz transverter. I can tune down there and hear stuff (this is 22 MHz,
> within range of the 15 meter band on the K3.) Sensitivity down a bit, but it
> works.
>
> The problem is that the K3 will not allow me to enter this frequency
> directly.  After spinning the dial a thousand times I arrived there and put
> the frequency in a memory.  Guess what? it will not accept the memorized
> frequency when I recall it.  Kicks me to 219.99 or so ...  what gives?
>
> Ken
>
> PS - I do not have the general coverage receiver, if that makes a
> difference.
>   
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[Elecraft] Elecraft CW Net Announcement

[Kevin Rock]

Good Evening,
   Another short spate of hot weather and now it is quite pleasant.  The smell 
of autumn is in the air with a crisp blue sky.  Instead of cutting and 
splitting I am busily transporting wood back to the house.  The wood I cut in 
May and June is quite dry and the wheelbarrow feels light even when fully 
loaded.  No matter what else goes on in my life, good, bad, or indifferent, I 
always feel good when I see the woodpile in front of the house growing.  A 
large pile of well seasoned wood means that no matter what I will be warm this 
winter.  Everything else in the world can go crazy but I will be able to sit by 
a cozy fire and read as the snow falls and the wind howls.  
   Propagation on 20, 40, and 80 meters was good this week.  I made contacts on 
each band and had some long ragchews.  There was some QSB but nothing too deep. 
 Sometimes it would have a flutter to it which would coincide with the dit rate 
but that was easy to counteract by either speeding up or slowing down my 
sending.  The weather is too good for antenna work so I think I will wait until 
Tuesday when wind and rain are expected to do some soldering on my window line. 
 Currently the flattop is fed with window line which is patched together with 
wirenuts.  A soldered connection may be better over the winter because the 
joint will be wet most of the time.  Copper develops a monomolecular oxide 
coating over time but this does not have the same resistance as pure copper.  A 
soldered joint with good strain relief will make me feel better and may just 
work more efficiently than those wirenuts.

Please join us tomorrow evening.
 
1) Hail signs  (first letter or two of the suffix of your call)
2) NCS help  (as well as QSP/QNP  help)

Sunday 2300z (Sunday 4 PM PDT) 14050 kHz
Monday 0100z (Sunday 6 PM PDT)  7045 kHz

   Stay well,
  Kevin.  KD5ONS

-
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Re: [Elecraft] P3 display size? (more P3 pics)

[Eric Swartz WA6HHQ - Elecraft]

The IF output buffer mod is perfectly OK with the P3. We've refined and 
simplified the mod to a 1 resistor change and will be posting a mod note 
next week.

73, Eric  WA6HHQ

_..._



Pete Connors wrote:
> Eric Swartz -WA6HHQ, Elecraft wrote:
>
>   
>> The P3 has excellent sensitivity and can display signals down close to 
>> the K3s noise floor. Actually, with signal averaging enabled, the P3 can 
>> show -very- weak signals, especially on the waterfall display. I'm 
>> already hooked on the short time I've had it in my lab to use.
>>
>> 
>
> I assume those who have done the IF buffer mod for their LP-PANs will 
> experience a lower noise floor with the P3 unless it is going to 
> incorporate extra IF gain, in which case how will the IF buffer mod 
> affect the performance/use of the P3? Would it be better if the IF 
> buffer mod came out?
>
> Pete, F5VNB
>
>
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Re: [Elecraft] P3 display size? (more P3 pics)

[Pete Connors]

Eric Swartz -WA6HHQ, Elecraft wrote:

> 
> The P3 has excellent sensitivity and can display signals down close to 
> the K3s noise floor. Actually, with signal averaging enabled, the P3 can 
> show -very- weak signals, especially on the waterfall display. I'm 
> already hooked on the short time I've had it in my lab to use.
> 

I assume those who have done the IF buffer mod for their LP-PANs will 
experience a lower noise floor with the P3 unless it is going to 
incorporate extra IF gain, in which case how will the IF buffer mod 
affect the performance/use of the P3? Would it be better if the IF 
buffer mod came out?

Pete, F5VNB


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Re: [Elecraft] P3 ideas (room for a rocker switch?)

[Eric Swartz WA6HHQ - Elecraft]

Not at this time.

We've designed the rear panel so it can easily be changed should 
something like this be added in the future.

73, Eric  WA6HHQ

_..._



Michael B wrote:
> I believe he means a separate switch for an internal 12 volt supply.
>
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Re: [Elecraft] P3 ideas (room for a rocker switch?)

[Michael B]

I believe he means a separate switch for an internal 12 volt supply.

On Sat, Aug 22, 2009 at 12:06 PM, Eric Swartz -WA6HHQ, Elecraft <
e...@elecraft.com> wrote:

> The power switch is already part of the existing switch array. Look at
> the lower left corner of the P3.
>
> http://www.elecraft.com/K3/pics/K3%20and%20P3%20full%20spect%201024.JPG
>
> P3 can also be powered from the K3 or from an alternate DC source if you
> wish. (wall wart, Astron ps etc..) It can be internally jumpered to
> either follow the external 12V on/off from the K3 accessory power jack
> or to use its own power switch button.
>
> Frankie Hunt wrote:
> > Wayne, where do you plan on putting the power supply on/off switch?
> >
> > I too envision installing a power supply in the P3 cabinet, (Samlex 1223)
> >
> > Would it be possible to have space for the rocker switch on the front
> panel?
> > Perhaps a cutout  already in place with some kind of filler such as an
> > aluminum Elecraft logo inserted in it?
> > Perhaps just an empty spot somewhere?
> >
> > How about offering a rear fan option for the P3 cabinet?
> >
> > Frankie
> > K4TEN
> > K3   1688
> >
> >
> >
> > - The P3 can go on either side of the rig, or on top, even upside
> > down. But we'll supply simple P3-to-K3 support hardware to ensure that
> > the P3 doesn't move when you push the buttons. Or you can weight it
> > down by putting your own power supply inside, which is what I plan to
> > do :)
> >
> > 73,
> > Wayne
> > N6KR
> >
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-- 
W2CVZ,
Michael
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[Elecraft] small feature wish for K3

[Wolfgang Schwarz -DK9VZ-]

sorry did forget, that the list doesn?t accept html-mails ...
Here is my wish again

Within WAE CW one week ago we did record all QTCs to MP3
just to be able to relisten to them if something went wrong

The line output of the K3 is the ideal port to do so.
Unfortunately there is a small issue when pressing a button
on the front panel. The "beep" is much louder on the
recoring than the recorded signals.

Isn?t it possible to disable these keyboard beeps for the line-out jack???
Or is the only possiblity to disable them at all?

-- 
/*73 de*/
/*Wolfgang DK9VZ*/
w...@dk9vz.com 


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Re: [Elecraft] K2 Problem ???

[Don Wilhelm]

Jim,

That 'ticking' noise when in the DSP menu is present on all K2s with the 
KDSP2 option.
I believe it is the sound of the clock updating.  It is not a problem 
and goes away when you exit the DSP menus.  I am surprised that you just 
now noticed it.

73,
Don W3FPR

Jim Harris wrote:
> Hi,
>
> My K2 is slightly over four years old.  I only use it for portable operations 
> about once per month.  It has all the bells and whistles including DSP and 
> all needed mods are installed.  I power it with an external battery through 
> an MFJ battery booster.  I had to add the booster because as the battery 
> voltage would drop below about 11.5 volts at the radio I would get reports of 
> transmitted audio distortion.  I now get good audio reports on my transmitted 
> audio.  Since I've added the booster when I set the display function to show 
> the DSP parameters there is a crackling buzzing sound in the received audio.  
> The other display settings do not cause the noise.  Apparently there is no 
> ill effect other than the annoying noise.  Has anyone experienced this 
> previously?  Any idea as to what is causing the noise and how to get rid of 
> it.
>
> Thank you.  Have a good day and 73.
>
> Jim, W0EM
>
>
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[Elecraft] Adaptive predistortion

[William Carver]

Phase is preserved through heterodyning, so if the DSP can handle
(interlace?) ADC and DAC is there any basic reason wny TX adaptive
predistortion could not be applied within the K3 architecture?

Bill


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[Elecraft] K3-EZ and Windows 7

[E Glenn Wolf Jr]

Has anybody had any luck getting K3-EZ to work under Windows 7?  I've 
tried several compatibility modes and as administrator and it still 
won't install.

On another note the K3-Util installed and seems to be working fine.

TIA -

glenn
n5rn
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Re: [Elecraft] K3 weight

[Eric Swartz -WA6HHQ, Elecraft]

The K3 keypad is extremely strong and much hardier than the softer 
keypads on HTs etc. We specifically used a hardened top covering over 
the lettering to protect it. These keypads will probably outlast the 
rest of the radio. The keypads on our demo radios, which see a -lot- of 
abuse and use, still look new.

The power pole connectors are very rugged. They have been chosen as the 
standard for emergency usage here in the states for that very reason. 
That's why they have been wildly popular on product offerings from West 
Mountain Radio and many others. We've been using them since we 
introduced the 100W K2, and on out XV series transverters, for almost 9 
years now with great feedback.

Lastly, the K3 will be an evolving radio for its complete lifetime. We 
have stable firmware in the radio, but we plan to add new features that 
make sense on a regular basis to improve the radio. That's why we made 
it an internally s/w defined architecture with easy firmware 
download-ability. To be honest, the few features mentioned in our manual 
that are not in the rig crept into the documentation inadvertently and 
we missed it. I personally apologize for the resulting confusion. They 
were actually not part of the original planned first release feature set 
and were included in the docs incorrectly. That said, the few features 
in this category -are- being actively worked on, especially sync AM, 
which Lyle is close to releasing.

Stay tuned!  We're working very hard in Aptos.

73, Eric  WA6HHQ
--

rfenab...@gmail.com wrote:
> (Snip)
>
> It remains to be seen how well the K3's rubber buttons hold up over the 
> years, or whether the power pole connectors break with extensive mobile 
> or portable use
> (End snip)
>
> I have wondered his myself. Remember when cell phones had similar 
> buttons...the letters and numbers wore off.
>
> If I had a choice of only one thing I could change then I think this might 
> well make the list to choose from.
>
> I like the weight and feel of the K3 and will wait and see what the P3 comes 
> out at. 
>
> I will hold off ordering a P3 until the FW is better developed after the K3 
> experience. 
>
> 73's
> Gary. VK4WT/P
>   

_..._

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Re: [Elecraft] ADT-200A Fully DSP transceiver [End of thread]

[Eric Swartz -WA6HHQ, Elecraft]

Lots of good info on this new design.

Let's rest this thread for now, as its rapidly reaching the max posting 
threshold for a single topic :-)

Now, back to our regularly scheduled mayhem..

73, Eric  WA6HHQ
Elecraft List Moderator



_..._

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Re: [Elecraft] P3 display size? (more P3 pics)

[Eric Swartz -WA6HHQ, Elecraft]

One note on these early P3 pictures.

Several people noted in private emails that the absolute dbM range on 
these screen shots (see email below) implied a high noise floor and that 
the scale did not go down to the K3s noise floor. The development 
firmware used for these pictures was an early version and was not 
calibrated or tracking the K3's internal gain, so the scale is somewhat 
arbitrary and does not match reality on these pics. Signal averaging was 
also not enabled for these pictures.

These pictures were taken to highlight the sharp display and a couple of 
our display modes (spectrum, split waterfall - spectrum etc.) Noting is 
set in stone on these display layouts. Also, we took these pictures with 
a fairly short antenna in an electrically noisy office environment :-)

The P3 has excellent sensitivity and can display signals down close to 
the K3s noise floor. Actually, with signal averaging enabled, the P3 can 
show -very- weak signals, especially on the waterfall display. I'm 
already hooked on the short time I've had it in my lab to use.

Stay tuned ( tired of that phrase yet? ;-)  for more pics as we get 
closer to P3 release.

One other note: For normal day to day operation, the P3 is extremely 
simple to use. I basically only need to push 2-3 dedicated buttons to 
select full vs split display, select a signal with the cursor and center 
the K3 on it, set the sweep span, reference level etc. Anyone can sit 
down and start using it without reading the manual. All the other 
configurable option buttons are there for more advanced usage. We'll 
talk more about their features as we proceed with the design.

73, Eric   WA6HHQ
--

Eric Swartz - WA6HHQ, Elecraft wrote:
> Here a link to the P3 and K3 with the P3 in full spectrum display mode.
> (Note that our text fonts are now larger than that shown and are very 
> easy to read. We will have selectable font sizes on the release version 
> of P3.)
>
> http://www.elecraft.com/K3/pics/K3%20and%20P3%20full%20spect%201024.JPG
>
> As you can see, the display is extremely sharp, bright and easy to read.
>
> And in split screen, spectrum and waterfall mode:
> http://www.elecraft.com/K3/pics/P3%20w%20K3%20a.JPG
>
> We also have a full screen waterfall mode, among others. I'll add pics 
> of that soon
>
> These are very early versions of the f/w and display layouts. We are 
> roaring ahead refining the f/w and various displays.
>
> More pics soon!
>
> 73, Eric  WA6HHQ
> =
> _..._
>   
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Re: [Elecraft] P3 ideas (room for a rocker switch?)

[Eric Swartz -WA6HHQ, Elecraft]

The power switch is already part of the existing switch array. Look at 
the lower left corner of the P3.

http://www.elecraft.com/K3/pics/K3%20and%20P3%20full%20spect%201024.JPG

P3 can also be powered from the K3 or from an alternate DC source if you 
wish. (wall wart, Astron ps etc..) It can be internally jumpered to 
either follow the external 12V on/off from the K3 accessory power jack 
or to use its own power switch button.

Frankie Hunt wrote:
> Wayne, where do you plan on putting the power supply on/off switch?
>
> I too envision installing a power supply in the P3 cabinet, (Samlex 1223)
>
> Would it be possible to have space for the rocker switch on the front panel?
> Perhaps a cutout  already in place with some kind of filler such as an
> aluminum Elecraft logo inserted in it?
> Perhaps just an empty spot somewhere?
>
> How about offering a rear fan option for the P3 cabinet?
>
> Frankie
> K4TEN
> K3   1688
>
>
>
> - The P3 can go on either side of the rig, or on top, even upside  
> down. But we'll supply simple P3-to-K3 support hardware to ensure that  
> the P3 doesn't move when you push the buttons. Or you can weight it  
> down by putting your own power supply inside, which is what I plan to  
> do :)
>
> 73,
> Wayne
> N6KR
>
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Re: [Elecraft] P3 display size?

[Eric Swartz -WA6HHQ, Elecraft]

We already plan to offer a VGA output option.

To clarify this a bit, there its is not as simple as connecting a VGA 
connector to the display. VGA output actually required additional memory 
and a display procesor dedicated to that output path. WE've thought this 
through carefully and have provided the hooks to support this additional 
h/w in the P3.

Font sizes are already user changeable. That one is important for me 
too.. ;-)

As usual, stay tuned!

73, Eric   WA6HHQ


Peter Sinclair wrote:
> Well said Dave.It is a must for us oldies along with 
> the ability to change font size and display digital modes.
> Peter G3UCA
>
>
>
>   
>>
>> Maybe a video out connector for a PC monitor might be good to have.  That 
>> way, if a P3 is purchased but proves a bit too difficult for older eyes to 
>> resolve, there would always be the option of using a larger, outboard 
>> display while still retaining the K3/P3 functionality.
>>
>> 73  DaveL  G3TJP
>> 
>  l
>
>
>
> 
>
>
>
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[Elecraft] small feature wish for K3

[Wolfgang Schwarz -DK9VZ-]

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Re: [Elecraft] P3 display size?

[Eric Swartz -WA6HHQ, Elecraft]

We're happy with the number and placement of the buttons and switches at 
this time. This front panel and active matrix display parts of the 
design (except for the silkscreen button labels, which will be changing 
a bit) is already final, due to the long lead time on these components.

Note that we have an incredible amount of flexibility in s/w. We already 
do provide screen labels for the Fn buttons in different pages of the P3 
display.

I'll post more screen shots as we proceed on the f/w.

73, Eric


Fred Atchley wrote:
> Eric, have you considered placing some of the buttons on the top of the
> enclosure near the front. This 
>
> would make room for a larger display size and the push down pressure would
> also help hold the P3 in-place.  
>
> Just a thought. 73, Fred AE6IC
>
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Re: [Elecraft] P3 display size? (more P3 pics)

[Eric Swartz -WA6HHQ, Elecraft]

Not until later. We are hot in development at the moment and there are a 
limited number of P3s.

Ask anyone who was at the Santa Barbara show last weekend and they will 
tell you it was very fast :-)

73, Eric


Brett Howard wrote:
> I know that the refresh rate is planned to be going faster here soon but
> is there any chance of a simple video so that we may see it in its
> active state?
>
>   

_..._

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Re: [Elecraft] P3 button alterations (maybe not too late)

[Michael B]

How about being able to set the Programmable Function Buttons to change to
what ever band you like, but not making that permanent for those of us that
have other uses in mind.

On Sat, Aug 22, 2009 at 8:17 AM, ka9zap  wrote:

> I use the same method to band hop as Brett I still would rather operate
> the rig with out the
> computer soft ware controlling it old habits die slowly.
> snip
>
> I honestly have gotten well used to using M>V then a number to change
> bands and never use the BAND rocker.  I'll have things that I'd like to
> put on those PF's but my rig won't be using them as band switching
> buttons.  Honestly with two taps I can get a bands witch done in less
> time than a tap and hold takes.
>
> Snip
>
> But I still miss the Band Stacking Register because I like to separate
> my favorite cw spots from voice, might it be possiable to have this
> [M>V] function remember two frequency's or more that might be controlled by
> [mode] first being selected?
>
> Regards
> Art
> ka9zap
>
>
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-- 
W2CVZ,
Michael
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Re: [Elecraft] ADT-200A Fully DSP transceiver

[Paul Christensen]

And here's the English version...

http://216.229.20.37/images/ADAT%20Presentation_Hamfest_22-09-07.pdf

Paul, W9AC

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[Elecraft] K2 Problem ???

[Jim Harris]

Hi,

My K2 is slightly over four years old.  I only use it for portable operations 
about once per month.  It has all the bells and whistles including DSP and all 
needed mods are installed.  I power it with an external battery through an MFJ 
battery booster.  I had to add the booster because as the battery voltage would 
drop below about 11.5 volts at the radio I would get reports of transmitted 
audio distortion.  I now get good audio reports on my transmitted audio.  Since 
I've added the booster when I set the display function to show the DSP 
parameters there is a crackling buzzing sound in the received audio.  The other 
display settings do not cause the noise.  Apparently there is no ill effect 
other than the annoying noise.  Has anyone experienced this previously?  Any 
idea as to what is causing the noise and how to get rid of it.

Thank you.  Have a good day and 73.

Jim, W0EM


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Re: [Elecraft] ADT-200A Fully DSP transceiver

[Lyle Johnson]

> ...Also unique to the ADT-200A is a built-in 
> 2-tone IMD generator for testing purposes.

K3 has this

CONFIG:2 TONE ON|OFF

:-)

73,

Lyle KK7P

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Re: [Elecraft] ADT-200A Fully DSP transceiver

[Paul Christensen]

> For anyone else interested, the .ppt presentation is downloadable here:

Bill

I think that's the German language version.  I'll upload the English 
version.from Adam Farson and post a link.

Paul, W9AC

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Re: [Elecraft] ADT-200A Fully DSP transceiver

[Bill W4ZV]

P.B. Christensen wrote:
> 
> I'll send you a PowerPoint presentation by private E-mail that address
> this 
> point on page 27.  It was prepared by HB9CBU and translated by Adam
> Farson, 
> VA7OJ.  
> 

For anyone else interested, the .ppt presentation is downloadable here:

http://www.adat.ch/pub/Vortrag_Hamfest_22-09-07.pdf

73,  Bill

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Re: [Elecraft] ADT-200A Fully DSP transceiver

[Paul Christensen]

> I assume the BPF shown is simply one LPF anti-aliasing filter for 
> rejecting
> signals >30 MHz.  Since the ADT was designed in Europe where 40m BCI is
> (still) a significant issue, how can the 112 dB BDR cope with the dynamic
> range of nearby broadcast stations?  Is that BPF actually a set of band
> limited filters?

Hi Bill,

Yes, the ADT-200A uses a total of nine automatically-switched half-octave 
filters in the preselector.  The specified 112 BDR figure is quoted for 2.4 
kHz BW.  As I recall, that number approaches 120 dB for typical CW BW.

I'll send you a PowerPoint presentation by private E-mail that address this 
point on page 27.  It was prepared by HB9CBU and translated by Adam Farson, 
VA7OJ.  The same presentation looks at diversity reception as an "add on" 
under development.  The four "receivers" presently come directly off one ADC 
(Lyle, there's your answer!).  So, the diversity add-on requires a companion 
ADC board for true diversity (akin to the K3's need for the 2nd Rx module).

Also, regarding adaptive predistortion, one may think ADAT is achieving 
spectacular Tx IMD numbers by under-utilizing a PA of higher power 
capability (e.g., taking a 100W PA and simply running it at half-level). 
However, the same PowerPoint presentation (page 21) shows the effect of Tx 
IMD with and without AP engaged.  Without AP, 3rd-order IMD is typical of 
+13VDC PA transceivers at roughly -33dBc.  With AP engaged, 3rd-order IMD is 
driven down to -65 dBc at 14 MHz.  In this instance, the algorithm alone 
reduced IMD by a whopping 30 dB.  Also unique to the ADT-200A is a built-in 
2-tone IMD generator for testing purposes.

I also failed to mention in past posts that the ADT-200A uses solid-state 
T/R switching like the K3 and an optically-isolated, solid-state MOSFET for 
amp switching.  The ADT unit produces no mechanical noise when transmitting 
with or without an amp.

Paul, W9AC


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[Elecraft] The real P3 Objectives

[Fred Atchley]

There have been many very good suggestions for P3 options. For me it boils
down to simple use during normal operations.

Normal operations may be meeting friends, DXing, or contesting.

 

If you are meeting up with friends, someone may ask you to look at their
signal. You have lots of time to fiddle with buttons.

 

But if you are DXing or contesting, you must focus on the moment. The last
thing you want to do is tweak buttons.

Therefore you want a limited setup of preferred options that minimize the
need for your attention during the event.

 

I've never used a panadaptor so I have concerns about what features are best
suited for the event and how to apply them. 

 

A.  Contesting has made Ham radio a new hobby for me. I could use the P3
to check if a band is open. For CQing,

I would like to know where the least amount of QRM & QRN is located. For S&P
I need to know when the strong new 

signals present themselves. I also would like to know if a nearby signal
might be wiping me out.

 

B.  I'm not a DXer but I can imagine that a very narrow BW would be
handy to see if the DX station was favoring a particular 

response frequency or to visualize the clearest point in response time.

 

I'm sure you all have many great P3 operating ideas and I sincerely hope you
will post them for all Elecraft users to share.

 

Have fun. 73, Fred AE6IC

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Re: [Elecraft] ADT-200A Fully DSP transceiver

[Bill W4ZV]

Bill W4ZV wrote:
> 
> Is that BPF actually a set of band limited filters?
> 

I think I found the answer in the FAQ:

"With 4 Rx and 4 Tx VFO's, can I set each one to a different band and work
cross band?"

"Yes, the VFO's can all be set to the same or to different bands,
independant from its Rx-frequencies. The user must keep in mind, that each
selection of a band will also switch in the appropriate halfband filter in
the preselector."

Still it seems like a 40m preselector would not be sharp enough to prevent
BDR issues with BC stations.

73,  Bill




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Re: [Elecraft] ADT-200A Fully DSP transceiver

[Bill W4ZV]

P.B. Christensen wrote:
> 
> The ADT-200A does not have a perfect receiver.  It's a different kind of 
> receiver.  As technology allows for nearly Herculean receiver performance, 
> it becomes more difficult to classify one type as being "better" than 
> another.  That largely depends on what measurement category is most useful 
> to the individual operator (e.g., close-in DR, phase noise, Tx IMD, etc).
> 

Paul I did a brief scan of the manual and have a question.  The overall
block diagram shows a BPF ahead of the ADC, yet I saw the following comment:

"In the digital receiver the full signal spectrum is fed directly to a high
resolution A/D converter. All signal processing is made digitally, which is
ideal as it relates to distortions and noise. Since algorithms are
determined by software, uniform performance parameters are obtained. Another
benefit of this technology is the high degree of functional flexibility. New
functions can be added by simple software download."

I assume the BPF shown is simply one LPF anti-aliasing filter for rejecting
signals >30 MHz.  Since the ADT was designed in Europe where 40m BCI is
(still) a significant issue, how can the 112 dB BDR cope with the dynamic
range of nearby broadcast stations?  Is that BPF actually a set of band
limited filters?

73,  Bill


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Re: [Elecraft] K3 Channel Hopping

[Lu Romero]

Yes, I stand corrected... Serves me right for checking email
and responding at 3 in the morning...  

-lu-

- Original Message Follows -
From: Wes Stewart 
To: Lu Romero - W4LT 
Subject: Re: [Elecraft] K3 Channel Hopping
Date: Sat, 22 Aug 2009 05:57:54 -0700 (PDT)

>--- On Sat, 8/22/09, Lu Romero - W4LT 
>wrote:Yes, this is exactly the point.  Moving the
Multi/CH
>knob on my TS570 resetsthe vfo to 5kHz steps from wherever
>I was previously.  That is handy forquick QSY.Brett
>describes how I use the feature exactly (nice to know Im
>not unique!)-lu-w4lt-Except it was I who described it.
>Brett doesn't want it to work that way.Wes  N7WS   
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[Elecraft] P3 ideas (room for a rocker switch?)

[Frankie Hunt]

Wayne, where do you plan on putting the power supply on/off switch?

I too envision installing a power supply in the P3 cabinet, (Samlex 1223)

Would it be possible to have space for the rocker switch on the front panel?
Perhaps a cutout  already in place with some kind of filler such as an
aluminum Elecraft logo inserted in it?
Perhaps just an empty spot somewhere?

How about offering a rear fan option for the P3 cabinet?

Frankie
K4TEN
K3   1688



- The P3 can go on either side of the rig, or on top, even upside  
down. But we'll supply simple P3-to-K3 support hardware to ensure that  
the P3 doesn't move when you push the buttons. Or you can weight it  
down by putting your own power supply inside, which is what I plan to  
do :)

73,
Wayne
N6KR

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Re: [Elecraft] ADT-200A Fully DSP transceiver

[Paul Christensen]

> "The ADAT appears to be a finished product,  all its core features have 
> been delivered with excellent styling and  engineering."

The ADT-200A's core architecture is complete, leaving room for a 
considerable amount of future upgrades.  The unit includes an Ethernet port 
for a web server, in addition to a USB port, and a plethora of other 
connectivity.

In many respects, the ADT-200A is very much at a stage where the K3 was at 
the time of its product launch.  For example, the K3 did not have true 
diversity at first, and yet many folks went ahead and made the purchase 
anyway (myself included), realizing that it would come -- and it did. 
Neither the K3, nor the ADT-200A will ever be "complete" products.  But 
that's a positive attribute since the designs can evolve as consumer demand 
changes.  The same is true of the Flex series.

> "I dont know how so many can be so critical of this well designed radio."

I do not see the comments here as being negatively critical of the ADT-200A. 
Without knowledge of the the tranceiver's capabilities, there's a tendency 
to be skeptical.  Nothing wrong with that.

>" It has a perfect receiver, transmitter, S-meter, CW keying sidebands and 
>probably the worlds best IMD performance from a transmitter. It really 
>delivers a knockout blows against the K3. These several  key feature 
>advantages over the K3 would be attractive to more operators than few Db in 
>receiver performance. If Ulrich Rhode N1UL owns one, it says a lot about 
>the radios design excellence!"

My purchase of the ADT-200A was based largely on Ulrich Rhode's comments. 
The ADT-200A does not have a perfect receiver.  It's a different kind of 
receiver.  As technology allows for nearly Herculean receiver performance, 
it becomes more difficult to classify one type as being "better" than 
another.  That largely depends on what measurement category is most useful 
to the individual operator (e.g., close-in DR, phase noise, Tx IMD, etc).

> "Anyway if I had to choose today between buying a K3 or an ADAT I would 
> probably buy the ADAT, which I only found out about  from reading this 
> list! I dont see how the K3 could be improved  to feature match the ADAT, 
> it would take a new design from Elecraft."

Careful!  The ADT-200A users a basic front panel user interface with many 
menus.  I suspect that contesters may not like it without use of a software 
control program.

I have no intention of selling my K3.  Both the K3 and ADT-200A are unique 
for the attributes they offer.  That said, I would really like to see 
Elecraft design their own rendition of a direct-RF-sampled transceiver as 
just another product in their mix.  I would like to see a black box design 
with a built-in web server, use of interchangeable front panels sizes for 
portable and base station use, and implementation of adaptive 
pre-distortion.

Paul, W9AC 

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Re: [Elecraft] Case for noise generator

[Ron D'Eau Claire]

An option would be to use the wide-band noise generator and your receiver as
a tunable RF voltmeter. If you have a K3, it'll give you a direct readout,
but any receiver will work if you can disable the AGC and measure the audio
output level.

Ron AC7AC

-Original Message-

And if someone figures out how to make it or the  XG1 work on 10M I would be
very interested. Tried a 10M fundamental crystal and played a little with
the caps, but no luck so far.  I use 10M to measure coax loss to the tower
on all my buried coax lines.
I changed the crystal to 160M with a XG1, that works well with a whip
antenna for checking receive antennas.

Maybe Elecraft will come  out with an XG6 in a case?

N2TK, Tony 


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Re: [Elecraft] K3 Utility fails to recognize K3

[Guido Tedeschi]

2Cents wrote:
> I can't get the K3 Utility to talk to the K3. When I test communications I
> get no dialog boxes at all, and it doesn't populate the "Installed in Radio"
> column.
Chuck,
test the RS232 TXD output: in idle state should be at least at -5V.
If it is about 0V and goes negative when you increase the power supply 
to 14V, there would be a problem in the circuit that generates the 
negative voltage for RS232.
A friend of mine had this problem and, after receiving and installing a 
new KIO3 sent very quickly from Elecraft, I checked the faulty KIO3 and 
found that the value of R1 (1K) was too low: changing that resistor with 
2K2 made the oscillator working fine even with 10V of power supply.
73 de Guido, ik2bcp
 
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Re: [Elecraft] P3 display size?

[Peter Sinclair]

Well said Dave.It is a must for us oldies along with 
the ability to change font size and display digital modes.
Peter G3UCA



>I finally obtained an answer to my question..
>
> The display area is 4.5 inches diagonal.  That's about the same screen 
> size as my SatNav, assuming a similar aspect ratio.
>
> I was also unsure whether the display was LCD or OLED.  It has been 
> confirmed that  it is a TFT LCD.
>
> I'm certainly concerned about the size of the display.  It may well be 
> able to display to VGA/XGA resolution, but I wonder if my eyes can cope 
> with something so small.  At least my SatNav talks to me HI!
>
> Maybe a video out connector for a PC monitor might be good to have.  That 
> way, if a P3 is purchased but proves a bit too difficult for older eyes to 
> resolve, there would always be the option of using a larger, outboard 
> display while still retaining the K3/P3 functionality.
>
> 73  DaveL  G3TJP
 l







No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.409 / Virus Database: 270.13.64/2319 - Release Date: 08/22/09 
06:06:00


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Re: [Elecraft] P3 button alterations (maybe not too late)

[ka9zap]

I use the same method to band hop as Brett I still would rather operate 
the rig with out the
computer soft ware controlling it old habits die slowly.
snip

I honestly have gotten well used to using M>V then a number to change
bands and never use the BAND rocker.  I'll have things that I'd like to
put on those PF's but my rig won't be using them as band switching
buttons.  Honestly with two taps I can get a bands witch done in less
time than a tap and hold takes.

Snip

But I still miss the Band Stacking Register because I like to separate
my favorite cw spots from voice, might it be possiable to have this 
[M>V] function remember two frequency's or more that might be controlled by 
[mode] first being selected?

Regards
Art
ka9zap


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Re: [Elecraft] ADT-200A Fully DSP transceiver

[Bill W4ZV]

juergen piezo wrote:
> 
> I have been wanting to buy a K3 now  since its release, which is almost
> two years now. However I am unwilling to invest in a product that is
> essentially unfinished.
> 

Fore me, any radio without true diversity is "unfinished" (and the ADAT does
not yet have it).  I'll never buy another radio without true diversity.  

Definitions of "unfinished" may depend on whether the user plans to use the
feature in question.  I don't SWL so features like Synchronous Detection for
AM are completely unimportant to me.

73,  Bill  W4ZV

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Re: [Elecraft] Case for noise generator

[N2TK]

And if someone figures out how to make it or the  XG1 work on 10M I would be
very interested. Tried a 10M fundamental crystal and played a little with
the caps, but no luck so far.  I use 10M to measure coax loss to the tower
on all my buried coax lines.
I changed the crystal to 160M with a XG1, that works well with a whip
antenna for checking receive antennas.

Maybe Elecraft will come  out with an XG6 in a case?

N2TK, Tony 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm
Sent: Friday, August 21, 2009 9:45 PM
To: 'Elecraft'
Subject: Re: [Elecraft] Case for noise generator

Joe,

Not required IMHO.  Dave said they would be made with a sliding cover.
It should be easy enough to slide the cover back and access these 
controls - IMHO that is easier than providing screwdriver access holes.

Perhaps I am speaking only from my own experience, but I use the XG2 a 
lot, and the bandswitch stays on 40 meters and the slide switch stays at 
the 50 uV setting almost all the time.  Yes, I am typically adjusting 
the CAL S HI setting, and I do that on 40 meters with the preamp off.  
The other settings are used but very seldom.

I realize I am not the 'normal' user, and I have an HP8640 on the 
workbench too if I need additional levels and frequencies, but the XG2 
is just so handy, I can't resist using it.

Now if Elecraft would provide another mini-module - the same high level 
xtal oscillator circuit as shown in the K1 and K2 manual troubleshooting 
section, that would make a great addition to the set of test instruments 
- I use my HP8640 (which goes up to +20 dBm) for that, but most builders 
do not have that capability, and an inexpensive high level signal source 
would be a real asset.

73,
Don W3FPR

Joe Subich, W4TV wrote:
>   
>> I would not advocate expansion to any other controls such as the 
>> XG2 bandswitch or the pots on the 2T-GEN since they are not used 
>> as often as an on/off switch.
>> 
>
> I would be interested in a case for the XG2 but it would need at 
> least a screwdriver hole for the bandswitch and possibly one 
> to reach the output level (slide) switch. 
>
> 73, 
>
>... Joe, W4TV 
>   
>
>
>   
>> -Original Message-
>> From: elecraft-boun...@mailman.qth.net 
>> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm
>> Sent: Friday, August 21, 2009 4:05 PM
>> To: Dave Van Wallaghen
>> Cc: Elecraft
>> Subject: Re: [Elecraft] Case for noise generator
>>
>>
>> Dave,
>>
>> If you do make enclosures for the mini-module test devices, your plan 
>> sounds good with the sliding top, but consider making room to mount a 
>> toggle switch on the enclosure - most have a BNC connector on one end 
>> and I would like to have room to mount a switch on the same 
>> end the BNC 
>> is located - wire the extra switch in parallel with the normal switch 
>> and no need to open the cover to turn it on.
>>
>> I would not advocate expansion to any other controls such as the XG2 
>> bandswitch or the pots on the 2T-GEN since they are not used 
>> as often as 
>> an on/off switch.
>>
>> I am only asking for a bit of extra space to mount that 
>> optional switch, 
>> not for inclusion of the switch or even a hole to mount it - 
>> I have my 
>> own drills and switches.
>> Yes, it would be nice if these test devices had a cover so 
>> they could be 
>> stacked on the bench more neatly.
>>
>> 73,
>> Don W3FPR
>>
>> Dave Van Wallaghen wrote:
>> 
>>> Hi Alan,
>>>
>>> I make enclosures for some of the other mini-modules, but 
>>>   
>> have yet to
>> 
>>> come up with enclosures for some of the test bench kit 
>>>   
>> versions. Looking 
>> 
>>> at the NGen, it looks like it would be pretty simple. I 
>>>   
>> just came up 
>> 
>>> with a way to use a sliding top on the enclosure so that in 
>>>   
>> this case 
>> 
>>> you would slide the top back to turn it off and on and also 
>>>   
>> replace the 
>> 
>>> battery.
>>>
>>> They are made with polycarbonate or acrylic plastic and are 
>>>   
>> clear so 
>> 
>>> you
>>> can still see the LED (and of course your beautiful assembly work).
>>>
>>> I have an NGen that is a couple of years old. If they have 
>>>   
>> not changed
>> 
>>> the design at all, I could try to make one up if you like. 
>>>   
>> I would guess 
>> 
>>> a price range of $15 - $18 dollars or so.
>>>
>>> Here are examples of the other work I've done on the mini-modules: 
>>> http://w8fgu.home.comcast.net/~w8fgu/enclosures.html
>>>
>>> Feel free to contact me off list if your interested.
>>>
>>> Take care & 73,
>>> Dave W8FGU
>>>   
>>>
>>>   
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Re: [Elecraft] Case for noise generator

[Phil & Debbie Salas]

"I would be interested in a case for the XG2 but it would need at least a 
screwdriver hole for the bandswitch and possibly one
to reach the output level (slide) switch.  73,... Joe, W4TV "

Check out the way I enclosed my XG2 in a metal case in the "Equipment 
Modifications" section at www.ad5x.com.  Not difficult to do, and all 
functionality of the XG2 is readily available.  Includes a band-switch knob, 
and the hi/lo output power switch.

Phil - AD5X 

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Re: [Elecraft] Case for noise generator

[David Gilbert]

Actually, you should be able to cut a hole on the end by carefully 
carving a relief channel in the wood for the rolled lip.  You'd probably 
need to be a bit more careful, though, since the rolled lip isn't solid 
inside and the metal would be somewhat more likely to tear there.

By the way, I've never tried it but I suspect you'd be able to cut a 
hole in almost any irregular surface by casting the material in 
something hard that can be later softened or dissolved ... like drywall 
plaster or hard candy.

73,
Dave   AB7E



David Ferrington, M0XDF wrote:
> Good idea David and one I'll bear in mind, but you can't clamp like 
> that into an Altoids tin, because it has a rolled lip, come to think 
> of it, would a 1/2 hole go in the side? Great idea though Joe
> 73 de M0XDF, K3 #174
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Re: [Elecraft] TIC P3 request

[Dave G4AON]

That's a neat idea, I used to have a Philips digital storage scope with
a pale green "auto set" button that gave you a nice display of an pretty
much any input without further button pushing... You could then adjust
it further manually if necessary.

My vote is for a pale green "default" button!

73 Dave, G4AON
K3/100 #80

How about a green button that resets everything back to defaults if you
get a bunch of options set that you want to clear quickly or to clear
things up if it gets into a strange state... ;)


Hopefully there are enough people who have used Agilent's spectrum
analyzers to get the joke...

Even funnier with the new display it looks a lot like the PSA series of
their current product line. Not sure how many of those people have
gotten to use. I consider my time with that box a pure pleasure! What
a unit! But it should be for the nearly 100 grand it cost!

~Brett (KC7OTG)

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[Elecraft] TIC P3 request

[Brett Howard]

How about a green button that resets everything back to defaults if you
get a bunch of options set that you want to clear quickly or to clear
things up if it gets into a strange state...   ;)


Hopefully there are enough people who have used Agilent's spectrum
analyzers to get the joke...  

Even funnier with the new display it looks a lot like the PSA series of
their current product line.  Not sure how many of those people have
gotten to use.  I consider my time with that box a pure pleasure!  What
a unit!  But it should be for the nearly 100 grand it cost!

~Brett (KC7OTG)

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Re: [Elecraft] P3 weight

[David Ferrington, M0XDF]

I'd prefer it to be light, but anchored to the K3, I'd much rather  
carry less weight when portable.
73 de M0XDF, K3 #174
-- 
They know enough who know how to learn. -Henry Adams (1838-1918)

On 22 Aug 2009, at 02:13, Dave-Boat Guy wrote:

> A quick comment for those that may think the P3 may slide around.   
> If it is going to use the 2-dimensional fasteners, there is an easy  
> way to add weight and structural rigidity at the same time.
>
> I replaced all the 2-D fasteners (where possible) with 1/2" copper  
> bar stock on a K2.  I drilled and tapped the appropriate holes and  
> not only did it add weight, it added some rigidity as well.  It  
> doesn't fit everywhere due to interference, however, with a little  
> machining (filing...it's soft) or going to a smaller size, it's and  
> easy and inexpensive upgrade.

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Re: [Elecraft] Case for noise generator

[David Ferrington, M0XDF]

Good idea David and one I'll bear in mind, but you can't clamp like  
that into an Altoids tin, because it has a rolled lip, come to think  
of it, would a 1/2 hole go in the side? Great idea though Joe
73 de M0XDF, K3 #174
-- 
A society grows great when old men plant trees whose shade
they know they shall never sit in. -Greek proverb

On 22 Aug 2009, at 05:25, David Gilbert wrote:

>
> To cut a nice hole in almost anything (thin metal, plastic, leather,
> cloth, etc), TIGHTLY clamp a piece of smooth plywood or particle board
> (say 5/8 inch thick) on both sides of the material and just drill
> through the entire sandwich with a sharp drill bit.
>
> 73,
> Dave   AB7E

> Joe Planisky wrote:
>> If one has the equipment and skill to drill a 1/2 inch hole in very
>> thin sheet metal, the XG2 fits perfectly in an Altoids mint box.   
>> Take
>> the rubber feet off and put an old credit card in the bottom to
>> prevent the solder joints from shorting to the case.  The top pops
>> open for easy access to all the controls.

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