date:20150912


Thanks for that info, Myron. VERY important!

73, Jim K9YC

On Sat,9/12/2015 11:33 AM, Myron WVØH wrote:

BatterySpace does not add balance circuitry, only over/under I/V protection.


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[Elecraft] K3 Utility Save Configeration freezes


I've found that all RS-232 to USB cables / converters are not created equal.  
Some work.   Some do not.   However those containing the FTDI chipset do work.

I purchased mine from R T Systems.   100% succes on every application and 
computer I've tried.

https://www.rtsystemsinc.com/


73
Bob, K4TAX

Date: Sat, 12 Sep 2015 07:24:08 -0700 (MST)
From: way235 via Elecraft
To:elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Utility Save Configeration freezes
Message-ID:<1442067848692-7607476.p...@n2.nabble.com>
Content-Type: text/plain; charset=us-ascii

I found that my computer has a serial connector so I ordered a serial cable.
The serial cable saves the configuration in a few seconds.  I will use the
serial cable and not use the serial to USB since it does not work.  I really
like this K3  Utility and find it very useful.
Thanks.
Wayne



--

73
Bob, K4TAX
K3S s/n 10,163

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Re: [Elecraft] K3S height with stand extended?

2015-09-12 Thread ae4pb

Thank you.
   Any idea how much space I need between the top of the rig and the bottom
of the hutch to be able to get Rose's dust covers on? 

Thanks.. I need to look at my dimensions a bit. 

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne
Burdick
Sent: Saturday, September 12, 2015 4:37 PM
To: ae...@carolinaheli.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3S height with stand extended?

6.25" with the stand deployed, and about 4.5" with the stand folded against
the case.

Wayne
N6KR


On Sep 12, 2015, at 1:32 PM,  wrote:

> Hi All,
>  I'm designing a hutch for my operating desk and would like to know 
> the height of the K3S with the stand extended. The 4" dimension given 
> for the rig appears to be with the stand folded.
> 
> Thanks in advance. 
> Jerry Moore

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Re: [Elecraft] K3S/100 very low TX power

2015-09-12 Thread Ian White

Thanks for the very prompt response, Wayne!

[Continued off-list.]

73 from Ian GM3SEK


>-Original Message-
>From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
>Wayne Burdick
>Sent: 12 September 2015 22:12
>To: Ian White
>Cc: 'Elecraft Reflector'
>Subject: Re: [Elecraft] K3S/100 very low TX power
>
>Ian,
>
>This sounds like an intermittent connection somewhere, possibly in the
10-
>W amplifier stage.
>
>Try re-tightening all of the hardware on the bottom covers, including
the
>screws that hold the PA device tabs to bottom cover B. Also try
reseating
>the 10-W amp module.
>
>If this doesn't help, try measuring the 0-dBm drive at the XVTR OUT
jack.
>For this purpose you need to put CONFIG:KXV3B into TEST mode.
>
>If you get a full 0 to 1.5 dBm output at XVTR OUT (into a 50-ohm load),
but
>low power output from the 10-W amp module, then the latter is probably
>implicated. Look at both sides of the module very carefully to see if a
>component is not soldered at one end, etc. This is rare but it can
happen.
>
>Also look at the components on the RF board just behind the 10-W amp
>module.
>
>I can give you more detailed signal tracing info if needed.
>
>Wayne
>N6KR
>
>
>
>On Sep 12, 2015, at 1:57 PM, "Ian White"  wrote:
>
>> My K3S/100 has gone into an unusual state where the maximum power
>> available - on any mode, any band - is about 1.5-2W. This is
independent
>> of any PWR setting above 1W, and the PA does not engage at higher PWR
>> settings.
>>
>> All this began on Friday afternoon when I switched on the rig. The
K3S
>> had been working normally a few weeks ago, but hadn't been used for
>> transmitting in the meantime.
>>
>> An external power meter confirmed that the TX could not deliver more
>> than about  1.5-2W. This was  confirmed again by the failure messages
>> from a TX power calibration. While troubleshooting, I progressively
>> uninstalled the KPA3 followed by the KPAIO3A adapter board, but with
no
>> change. Even in the simplest 10W configuration with only the small
>> bridge board in place between the two PA connectors, the K3S would
still
>> only deliver 1.5-2W with no effective PWR control.
>>
>> I also tried most of the other common tests: unplugged everything
else;
>> reloaded an older saved configuration; EEINIT; reloaded the saved
>> configuration again. No change.
>>
>> But I also noticed that the firmware was one release behind the
times,
>> so for lack of any other ideas I did a complete firmware upgrade to
the
>> latest MCU 5.35 / DSP 2.86 / FPF 1.24 - and it started working again!
>> Normal power output up to 10W, and fully variable up to 100W after
>> reinstalling the PA module. Another TX calibration confirmed that
>> everything was fine.
>>
>> That pleasant surprise seemed to indicate that the problem had been
>more
>> related to firmware than to hardware.
>>
>> By Friday evening, I believed the problem had gone away... but I
should
>> have known better.
>>
>> Today it has failed again, exactly the same way as before. Reloading
the
>> same latest firmware didn't work a second time.
>>
>> So now it's the weekend and I'm all out of ideas.
>>
>> While I wait until Monday to contact Elecraft Support, could anyone
in
>> the group offer any suggestions, please?
>>
>>
>> 73 from Ian GM3SEK
>>
>>
>>
>>
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>
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Re: [Elecraft] K3 to IC-7800 Comparison?

2015-09-12 Thread Walter Underwood

A couple of operators have posted comparisons between the IC-7800 and K3 
recently. Look at these e-mails.

http://mailman.qth.net/pipermail/elecraft/2015-August/220182.html 

http://mailman.qth.net/pipermail/elecraft/2015-August/220169.html 


wunder
K6WRU
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Sep 12, 2015, at 2:31 PM, Jim Brown  wrote:
> 
> On Sat,9/12/2015 2:12 PM, Skip Cameron wrote:
>> If anyone has done a K3 to IC-7800 comparison, please reply direct to me
>> with your assessment.
> 
> I've never seen a 7800, so no experience. However, ARRL and Rob Sherwood 
> have. Rob's data is on his webpage. It concentrates on receiver performance. 
> I've gathered ARRL Lab test data for a selected bunch of modern rigs and 
> published it in a form making it easier to compare the rigs as TRANSMITTERS.  
> My report is at http://k9yc.com/TXNoise.pdf
> 
> The original K3 is MUCH cleaner on CW than the 7800. Also, the original K3 
> has about 15 dB less phase noise than the 7800, which matters a lot on Field 
> Day and at a multi-TX contest station. The new synth board reduces both TX 
> and RX phase noise quite a bit (I've heard numbers in the range of 10 dB).
> 
> I haven't seen ARRL Lab tests of the new K3S or a K3 with the new synth 
> board, but I suspect both will turn out to be at the head of the pack for TX 
> cleanliness. Yes, I know about Pure Signal -- NR0V is my neighbor.
> 
> 73, Jim K9YC
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Re: [Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread Phil Hystad

Wayne,

I already have a KX3 and I love it for portable QRP work.  The very idea of 
hiding it away in
an SP3 though is just wrong.  Of course, you would never do that — would you?


73, phil, K7PEH


> On Sep 12, 2015, at 11:09 AM, Wayne Burdick  wrote:
> 
> Phil,
> 
> If you ever decide to seriously downsize, you can mount a KX3 inside an SP3.
> 
> Wayne
> N6KR
> 
> 
> On Sep 12, 2015, at 11:05 AM, Phil Hystad  wrote:
> 
>> The idea of producing a matching speaker is inevitable given the history of 
>> matching speakers (Note: obviously the idea of “matching” has different 
>> interpretations by different vendors)….
>> 
>> ...But, unfortunately, I have no plans to buy one because I have no room for 
>> its matchability to be useful as
>> my current K-line sits in a nice line up: K3, P3, KPA500 and there is no 
>> more room for another
>> side-by-side box.  Making room and adding the extra box puts different parts 
>> of the K-line too far
>> apart (at least, for me and my operating comfort).
>> 
>> So, here I am with my favorite rig, the K3 and maybe the last vendor 
>> (Elecraft) that I will ever buy from as long
>> as they keep up their good work, and the first radio (K3) in my personal 
>> history without its own matching
>> speaker due merely  to the lack of space on my desk top.
> 
> 
> 
> 

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Re: [Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread edeveloper_1--- via Elecraft

My shack is a bit cramped too. Currently I have a couple of really inadequate 
computer speakers sitting atop another rig near the K3/P3 combo. That rig sits 
atop the RF deck of an ALS-600, which itself sits on top of a KAT500 that's in 
turn sitting on top of a now-unused MFJ-998.
So that's quite a "tech stack" already.
Perhaps the advent of the SP3 will give me a reason to rearrange all that stuff 
so that I can have a good speaker (or two :)). Come to think of it, replacing 
the ALS-600 with a KPA500 would free up a bit of space as well and improve 
aesthetics at the same time. Wayne, you may have just engineered another 
Elecraft tipping point.
73, Tyler, KC2LST

 On Saturday, September 12, 2015 2:23 PM, Phil Hystad  
wrote:

 Wayne,

I already have a KX3 and I love it for portable QRP work.  The very idea of 
hiding it away in
an SP3 though is just wrong.  Of course, you would never do that — would you?

73, phil, K7PEH

> On Sep 12, 2015, at 11:09 AM, Wayne Burdick  wrote:
> 
> Phil,
> 
> If you ever decide to seriously downsize, you can mount a KX3 inside an SP3.
> 
> Wayne
> N6KR
> 
> 
> On Sep 12, 2015, at 11:05 AM, Phil Hystad  wrote:
> 
>> The idea of producing a matching speaker is inevitable given the history of 
>> matching speakers (Note: obviously the idea of “matching” has different 
>> interpretations by different vendors)….
>> 
>> ...But, unfortunately, I have no plans to buy one because I have no room for 
>> its matchability to be useful as
>> my current K-line sits in a nice line up: K3, P3, KPA500 and there is no 
>> more room for another
>> side-by-side box.  Making room and adding the extra box puts different parts 
>> of the K-line too far
>> apart (at least, for me and my operating comfort).
>> 
>> So, here I am with my favorite rig, the K3 and maybe the last vendor 
>> (Elecraft) that I will ever buy from as long
>> as they keep up their good work, and the first radio (K3) in my personal 
>> history without its own matching
>> speaker due merely  to the lack of space on my desk top.
> 
> 
> 
> 

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Re: [Elecraft] K3S height with stand extended?

2015-09-12 Thread Fred Townsend

Was that measured top to bottom or bottom to top?

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne
Burdick
Sent: Saturday, September 12, 2015 1:37 PM
To: ae...@carolinaheli.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3S height with stand extended?

6.25" with the stand deployed, and about 4.5" with the stand folded against
the case.

Wayne
N6KR


On Sep 12, 2015, at 1:32 PM,  wrote:

> Hi All,
>  I'm designing a hutch for my operating desk and would like to know 
> the height of the K3S with the stand extended. The 4" dimension given 
> for the rig appears to be with the stand folded.
> 
> Thanks in advance. 
> Jerry Moore

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[Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread Don Putnick via Elecraft

"- custom-built, high-quality 4-ohm oval speaker with outstanding passband 
characteristics"I have the honor of knowing the speaker designer and his 
reputation in the audio community. He put a lot of talent, love and care into 
that design. I'm putting it on my Christmas list!73 Don NA6Z
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[Elecraft] K3 to ProIII

2015-09-12 Thread Alan Geller via Elecraft

Hello All,
I have a terrific relative who looked at one of my few successful watercolor 
paintings and said “ I don’t like it, there isn’t enough detail “. Those of you 
who look inside
of the K3 and compare it to the ProIII by weight and contents represent one 
specific target market in this hobby and could possibly enjoy some good history 
books. 8^)

I enjoyed my ICOM products many years ago, but the Ele in EleCraft is well 
placed. 
Talk to your children more.


Alan/K6ADG
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Re: [Elecraft] K3 Utility Save Configeration freezes

2015-09-12 Thread G4GNX - Alan



Most of the issues with the Prolific cable/converters is with a flood of 
fakes and Prolific's policy of changing the drivers to reject them. They can 
be made to work using an older driver and disabling Windows Update for that 
driver.


I have both, but I do prefer the FTDI.

I've just ordered a multi-port serial converter, so we'll see how that works 
out.


73,

Alan. G4GNX

-Original Message- 
From: Bob McGraw - K4TAX

Sent: Saturday, September 12, 2015 8:34 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Utility Save Configeration freezes

I've found that all RS-232 to USB cables / converters are not created equal. 
Some work.   Some do not.   However those containing the FTDI chipset do 
work.


I purchased mine from R T Systems.   100% succes on every application and 
computer I've tried.


https://www.rtsystemsinc.com/


73
Bob, K4TAX 


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[Elecraft] K144XV How to use fm repeaters

2015-09-12 Thread Amateur Radio Operator N5GE

How dose one set the access tones and and offsets on repeaters when
using K144XV.
Amateur Radio Operator 
N5GE

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Re: [Elecraft] K3S/100 very low TX power

Ian,

This sounds like an intermittent connection somewhere, possibly in the 10-W 
amplifier stage. 

Try re-tightening all of the hardware on the bottom covers, including the 
screws that hold the PA device tabs to bottom cover B. Also try reseating the 
10-W amp module. 

If this doesn't help, try measuring the 0-dBm drive at the XVTR OUT jack. For 
this purpose you need to put CONFIG:KXV3B into TEST mode.

If you get a full 0 to 1.5 dBm output at XVTR OUT (into a 50-ohm load), but low 
power output from the 10-W amp module, then the latter is probably implicated. 
Look at both sides of the module very carefully to see if a component is not 
soldered at one end, etc. This is rare but it can happen. 

Also look at the components on the RF board just behind the 10-W amp module.

I can give you more detailed signal tracing info if needed.

Wayne
N6KR



On Sep 12, 2015, at 1:57 PM, "Ian White"  wrote:

> My K3S/100 has gone into an unusual state where the maximum power
> available - on any mode, any band - is about 1.5-2W. This is independent
> of any PWR setting above 1W, and the PA does not engage at higher PWR
> settings.
> 
> All this began on Friday afternoon when I switched on the rig. The K3S
> had been working normally a few weeks ago, but hadn't been used for
> transmitting in the meantime.
> 
> An external power meter confirmed that the TX could not deliver more
> than about  1.5-2W. This was  confirmed again by the failure messages
> from a TX power calibration. While troubleshooting, I progressively
> uninstalled the KPA3 followed by the KPAIO3A adapter board, but with no
> change. Even in the simplest 10W configuration with only the small
> bridge board in place between the two PA connectors, the K3S would still
> only deliver 1.5-2W with no effective PWR control.
> 
> I also tried most of the other common tests: unplugged everything else;
> reloaded an older saved configuration; EEINIT; reloaded the saved
> configuration again. No change.
> 
> But I also noticed that the firmware was one release behind the times,
> so for lack of any other ideas I did a complete firmware upgrade to the
> latest MCU 5.35 / DSP 2.86 / FPF 1.24 - and it started working again!
> Normal power output up to 10W, and fully variable up to 100W after
> reinstalling the PA module. Another TX calibration confirmed that
> everything was fine. 
> 
> That pleasant surprise seemed to indicate that the problem had been more
> related to firmware than to hardware.
> 
> By Friday evening, I believed the problem had gone away... but I should
> have known better. 
> 
> Today it has failed again, exactly the same way as before. Reloading the
> same latest firmware didn't work a second time.
> 
> So now it's the weekend and I'm all out of ideas.
> 
> While I wait until Monday to contact Elecraft Support, could anyone in
> the group offer any suggestions, please?
> 
> 
> 73 from Ian GM3SEK
> 
> 
> 
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Re: [Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread F5vjc

You guys must be drunk on KoolAid,

180$ for an, OK Wow... 'Matching' SP3 Speaker,  and most will need two,
 not one
Yikes !

Shipped to Europe, I don't think so!





73,  Deni - F5VJC



On 12 September 2015 at 22:54, Wayne Burdick  wrote:

> > The joy of living in a resource rich country with nowhere to sell it :-(
>
> Bet you could solar-power the entire country, Gary. I'm picturing one
> colossal array aimed at a boiler on top of Ayers Rock :)
>
> Wayne
> N6KR
>
>
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Re: [Elecraft] Elecraft SP3 External Speaker details

Tyler (KC2LST) wrote:

> ...from the photos on Twitter it looks like a very nice unit. As I recall 
> there have been a number of discussions on this reflector debating the merits 
> of various third-party external speakers and quite a few called on Elecraft 
> to produce one of its own, to match the K-Line. Congratulations to Elecraft 
> for once again listening to its customers and responding. I look forward to 
> hearing the new SP3 in action!

We certainly have had many requests for a matching, front-firing speaker. Sorry 
it took so long!

73,
Wayne
N6KR




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[Elecraft] Elecraft SP3 External Speaker: built-in power supply?

"Fred Townsend"  wrote:

> Will the speaker housing have a place to slide the Powerwerx supply into the 
> back?

Hi Fred,

The SP3 has a lot of room inside and is very solidly constructed, so it's a 
great platform for a DIY add-in like a power supply. You would only have to 
modify one piece of sheet metal -- the bottom cover -- since that is also the 
mounting point for the A/B switch in front and jacks in back. 

Available interior space is approximately 3.3"H x 5.9"W x 7.3"D. Audio jacks 
are arranged vertically along one edge of the rear panel, leaving several 
inches of space for additional connectors, possibly even a small fan.

Of course you'd have to remove some of the acoustic baffle material, altering 
the AF response curve in an unpredictable manner. Just thinking out loud, here, 
but I wouldn't use it as a hiding place for your collection of rare idiophones. 

73,
Wayne
N6KR

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Re: [Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread Phil Hystad

The idea of producing a matching speaker is inevitable given the history of 
matching speakers (Note: obviously the idea of “matching” has different 
interpretations by different vendors).  But,

1.  When I was nine years old, when my interest in radio started, my dad 
brought home
 the radios from his ship (because they were being replaced during a 
remodel).  This
 was the year 1956.  The radio receiver was EH Scott, model SLR: 12-B 
designed to
 fit in a rack cabinet.  It had a huge (boat anchor quality) matching 
speaker.

2.  My Hammarlund HQ-170AC, circa 1965, had a matching speaker (color and 
general
 design features).

3.  My Icom 756 (non-pro) had a matching Icom speaker (and, matching power 
supply).

4.  My Icom 756 Pro III had the newer version of the matching Icom speaker 
(SP-23).

5.  And, now, Elecraft has a matching speaker to go along with the K3/K3S.

But, unfortunately, I have no plans to buy one because I have no room for its 
matchability to be useful as
my current K-line sits in a nice line up: K3, P3, KPA500 and there is no more 
room for another
side-by-side box.  Making room and adding the extra box puts different parts of 
the K-line too far
apart (at least, for me and my operating comfort).

So, here I am with my favorite rig, the K3 and maybe the last vendor (Elecraft) 
that I will ever buy from as long
as they keep up their good work, and the first radio (K3) in my personal 
history without its own matching
speaker due merely  to the lack of space on my desk top.

73, phil, K7PEH

P.S.  I currently use West Mountain Radio Comspkr (stereo units) but most of 
the time headphones (cm-500).

> On Sep 12, 2015, at 9:26 AM, Wayne Burdick  wrote:
> 
> Tyler (KC2LST) wrote:
> 
>> ...from the photos on Twitter it looks like a very nice unit. As I recall 
>> there have been a number of discussions on this reflector debating the 
>> merits of various third-party external speakers and quite a few called on 
>> Elecraft to produce one of its own, to match the K-Line. Congratulations to 
>> Elecraft for once again listening to its customers and responding. I look 
>> forward to hearing the new SP3 in action!
> 
> We certainly have had many requests for a matching, front-firing speaker. 
> Sorry it took so long!
> 
> 73,
> Wayne
> N6KR
> 
> 
> 
> 
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Re: [Elecraft] [K2] LiFePO4 replacement for internal SLA battery in K2

2015-09-12 Thread Myron WVØH

BatterySpace does not add balance circuitry, only over/under I/V protection. 
What that means is when you charge, the first cell to reach its full voltage, 
the charge terminates leaving the other cells undercharged. Nothing offered on 
their website contains any balancing function.

You can get balancing circuitry added but you have to contact them and then 
they will add what they call "equilibrium" circuitry, to perform the balance 
function that you and I know.

Myron WVØH
Printed on Recycled Data

> On Sep 12, 2015, at 10:46 AM, Jim Brown  wrote:
> 
>> On Sat,9/12/2015 8:37 AM, inventor61 . wrote:
>> I had strongly considered the LiPo type secondary-cell power packaging 
>> option and rejected it.
> 
> There are mfrs of well protected LiFePO4 battery packs. Two I found are 
> Battery Space and Bioenno Power. Both make packs in a wide variety of shapes 
> to fit in the space available in existing products. They include the 
> circuitry inside the pack required to equalize charge and avoid unsafe 
> conditions. These batteries are not cheap, but you'll appreciate the 
> increased energy density.
> 
> If you're concerned about fitting the battery inside the radio, buy a battery 
> and use it outboard. I bought a 20Ah battery from Bioenno Power. It came with 
> two connectors, one a concentric connector for charging, the other a Power 
> Pole. I'm past the backpacking stage, but I bought the battery to support a 
> 6M grid trip to CM79 by a younger ham. He really appreciated the reduced 
> weight.
> 
> Both of these companies sell 12V LiFePO4 batteries range from 3Ah to 125Ah.
> 
> 73, Jim K9YC
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[Elecraft] K3s, K3, K3+ definitions.

2015-09-12 Thread John Buck


I was trying to come up with a good label for my Highly Upgraded K3 S/N 125.
Elecraft is using K3*S. *So I thought K3s for my unit after I get the 
USB interface added.
But K3s is being used by everyone in email for the real thing because 
the Stylized K3 with the slightly smaller large S is too hard to emulate 
on my standard keyboard.


So K3s is used for the real thing and I am looking for a good label for 
S/N 125 with new synthesizers and the new interface and the low band mod 
etc., etc.


K3+
K3u

Maybe I will use a silver pen to add a small stylized + after the K3 on 
the panel.  Disfigurement, bad Idea?


I kind of like K3+

What do you folks think?

Aloha,
John KH7T

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[Elecraft] K3S height with stand extended?

2015-09-12 Thread ae4pb

Hi All, 
  I'm designing a hutch for my operating desk and would like to know the
height of the K3S with the stand extended. The 4" dimension given for the
rig appears to be with the stand folded.

Thanks in advance. 
Jerry Moore
AE4PB, K3S SN# I should know Sunday when the big brown truck (BBT) arrives
with my setup.

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Re: [Elecraft] K144XV How to use fm repeaters

See "FM" at the bottom of the right column on page 31 of the K3 or K3S manual. 
Let me know if you need further info.

73,
Wayne
N6KR



On Sep 12, 2015, at 1:55 PM, Amateur Radio Operator N5GE  wrote:

> How dose one set the access tones and and offsets on repeaters when
> using K144XV.
> Amateur Radio Operator 
> N5GE


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Re: [Elecraft] K3S height with stand extended?

In my case, with the stand deployed,  I measured 6.375" from the desk 
top to the upper most front corner of the radio.



73
Bob, K4TAX
K3S s/n 10,163

On 9/12/2015 4:33 PM, Fred Townsend wrote:

Was that measured top to bottom or bottom to top?

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne
Burdick
Sent: Saturday, September 12, 2015 1:37 PM
To: ae...@carolinaheli.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3S height with stand extended?

6.25" with the stand deployed, and about 4.5" with the stand folded against
the case.

Wayne
N6KR


On Sep 12, 2015, at 1:32 PM,  wrote:


Hi All,
  I'm designing a hutch for my operating desk and would like to know
the height of the K3S with the stand extended. The 4" dimension given
for the rig appears to be with the stand folded.

Thanks in advance.
Jerry Moore

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Re: [Elecraft] Elecraft SP3 External Speaker details

I use a pair of "off the shelf" brand speakers which have 2" x 4" ovals 
in a nice efficient solid enclosure that is 5" deep.  They stand the 
same height as the K3S and are matte  black.  With the 2 channel 
features  and audio of the radio they sure sound nice. New, $49.95 for 
the pair.


73
Bob, K4TAX
K3S s/n 10,163

On 9/12/2015 7:02 PM, Don Putnick via Elecraft wrote:

"- custom-built, high-quality 4-ohm oval speaker with outstanding passband 
characteristics"I have the honor of knowing the speaker designer and his reputation 
in the audio community. He put a lot of talent, love and care into that design. I'm 
putting it on my Christmas list!73 Don NA6Z
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Re: [Elecraft] [K2] LiFePO4 replacement for internal SLA battery in K2


On Sat,9/12/2015 8:37 AM, inventor61 . wrote:

I had strongly considered the LiPo type secondary-cell power packaging option 
and rejected it.


There are mfrs of well protected LiFePO4 battery packs. Two I found are 
Battery Space and Bioenno Power. Both make packs in a wide variety of 
shapes to fit in the space available in existing products. They include 
the circuitry inside the pack required to equalize charge and avoid 
unsafe conditions. These batteries are not cheap, but you'll appreciate 
the increased energy density.


If you're concerned about fitting the battery inside the radio, buy a 
battery and use it outboard. I bought a 20Ah battery from Bioenno Power. 
It came with two connectors, one a concentric connector for charging, 
the other a Power Pole. I'm past the backpacking stage, but I bought the 
battery to support a 6M grid trip to CM79 by a younger ham. He really 
appreciated the reduced weight.


Both of these companies sell 12V LiFePO4 batteries range from 3Ah to 125Ah.

73, Jim K9YC
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Re: [Elecraft] Elecraft SP3 External Speaker details

Phil,

If you ever decide to seriously downsize, you can mount a KX3 inside an SP3.

Wayne
N6KR


On Sep 12, 2015, at 11:05 AM, Phil Hystad  wrote:

> The idea of producing a matching speaker is inevitable given the history of 
> matching speakers (Note: obviously the idea of “matching” has different 
> interpretations by different vendors)….
> 
> ...But, unfortunately, I have no plans to buy one because I have no room for 
> its matchability to be useful as
> my current K-line sits in a nice line up: K3, P3, KPA500 and there is no more 
> room for another
> side-by-side box.  Making room and adding the extra box puts different parts 
> of the K-line too far
> apart (at least, for me and my operating comfort).
> 
> So, here I am with my favorite rig, the K3 and maybe the last vendor 
> (Elecraft) that I will ever buy from as long
> as they keep up their good work, and the first radio (K3) in my personal 
> history without its own matching
> speaker due merely  to the lack of space on my desk top.




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Re: [Elecraft] K3 to Pro III, my thoughts to Jeff, wb0m

2015-09-12 Thread Fred Smith

I bought my IC-9100 after I started my K line and it’s a keeper as nothing will 
do all that it does 160m-1.2 gig including D-Star. It is the last of my base 
radios that aren't Elecraft and has no match out there as far as all band all 
modes. It just leaves a bit to be desired in the HF bands for me anyway 
compared to my K3 or KX3.


73,
Fred/N0AZZ



-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Cole
Sent: Saturday, September 12, 2015 12:34 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 to Pro III, my thoughts to Jeff, wb0m

I must second Phil's thoughts here...  I also did the A/B, and now have only a 
K3...  
--
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net

For MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
For Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
For MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info


On Fri, 2015-09-11 at 10:30 -0700, Phil Hystad wrote:
> OK, before this thread gets the whack of Eric, my two bits.
> 
> When I got my K3, I also owned an Icom 756 Pro III.  My plan was to keep both 
> — I am the original owner of the Pro III and I had this feeling that every 
> time I sold a radio I regretted the decision.
> 
> Right from the start I did a detailed comparison and being mostly interested 
> in CW, my comparison tests were all about CW.  
> 
> Picking out weak signals — absolutely no contest.  I could copy a signal Q5 
> on the K3 that I couldn’t even hear on the Pro III even though both were 
> using the same antenna (switching back and forth).
> 
> Pulling out a signal amongst QRM and QRN — absolutely no contest.  The 
> filters on the K3 made a big difference that could not be matched by the 
> filters on the Pro III.
> 
> So, I became hooked on the K3.  When the P3 came out, since I was a lover of 
> the spectrum display on the Pro III, I bought it right away.  Now, the die 
> was cast.  The Pro III took up valuable room in the shack and collected 
> worthless dust I didn’t want to clean.  This went on for two years of total 
> non-use.  Finally, I decided to sell.  Turned on the Pro III for the first 
> time in two years to test it out and then sold it within one day via 
> Craigslist for $1850 (two years ago).
> 
> No, after two years, I have not regretted my decision to sell the Pro III.  I 
> am done with Icom unless they come out with something really great and 
> different (despite the fact that Icom HQ (USA) and their main service shop is 
> just five blocks from my home QTH).
> 
> Note:  if you operate SSB only (or, mostly) then the performance differences 
> between the Icom Pro III and the K3 are probably less dramatic although I 
> never did any comparison tests in SSB mode.
> 
> 73, phil, K7PEH
> 
> 
> 
> 
> > On Sep 11, 2015, at 9:41 AM, Tom Fitzgerald via Elecraft 
> >  wrote:
> > 
> > 
> > I have both radios..bought both new...I'd advise you to keep your Pro III & 
> > add a K3 or K3s but if that's not an option then I would say keep your Pro 
> > III & wait a bit longer for the inevitable "next incarnation" of the 
> > K3...possibly a K4. I think you will find that you will miss your Pro III 
> > greatly if you let it go and you might not be convinced that you made a 
> > good decision after you get your new K3 in your hands. When/if you do get 
> > it in your hands, your first thought will be why is this K3 so much lighter 
> > than my Pro III???Yeah, it's a bit smaller (mine sets on top of my Pro III) 
> > but your Icom weighs in at over 20 pounds and your K3 might only weigh 7 or 
> > 8 pounds...both use an external PS so that's not the reason??? To many 
> > peeps that's awesome while to others it suggests something (or a lot) might 
> > be missing. I'll tell you right now that the Pro III is FAR easier to use 
> > than the K3 and you will need to purchase Fred Cady's (KE7X) manual to 
> > really learn the K3...IMO. You will also likely sense a certain "cheapness" 
> > to the K3 as compared to your old Icom. Depending on what you do with your 
> > radio, you may not notice any performance advantage at 
> > all...again...depends on what you do with it. I like both radios & don't 
> > want to start an argument about this radio vs that radio yet again...there 
> > have been zillions of such debates already, you can spend hours reading 
> > them online. If your Pro III is as flawless as mine (& one of the last ones 
> > produced) and not used that often (I have 3 radios which reduces wear & 
> > tear on any single radio), I would think very long & hard before parting 
> > with it. Hopefully you've sat down in front of a K3 and operated it so that 
> > your not surprised when you open the box, if you haven't done that...you 
> > need to do so. I know some that bought the radio and sold it soon after 
> > buying it because it wasn't what they expected. For those that

[Elecraft] OT - phones

2015-09-12 Thread Dauer, Edward

Sorry, Eric; I sent mine at 02:40 before I saw yours (18:30).  Didn¹t mean
to be a scofflaw.


Ted, KN1CBR 

>
>--
>
>Message: 7
>Date: Fri, 11 Sep 2015 18:30:48 -0700
>From: "Eric Swartz - WA6HHQ, Elecraft" 
>To: Elecraft Reflector Reflector 
>Subject: Re: [Elecraft] K3 vs K3s..."to be or not to be an "s"
>Message-ID: <963c15ac-76aa-4553-a2fa-db3d345b9...@elecraft.com>
>Content-Type: text/plain;  charset=us-ascii
>
>Let's drop the OT apple iPhone portion of this thread as its drifting a
>little far afield.
>
>73,
>Eric 
>moderator etc. (at the ARRL Sw show selling lots of SP3s :-)
>elecraft.com
>_..._
>

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Re: [Elecraft] K3 and Yamaha CM500

2015-09-12 Thread Cady, Fred

Plug the CM500 mic connector into the rear panel mic jack and the phones 
connector into the rear panel Headphones jack.  Then select MIC r.PL bias from 
the Main menu.
Cheers,
Fred KE7X


Author of:
"The Elecraft K3: Design, Configuration and Operation 2nd ed"
"The Elecraft KX3 - Going for the summit"
"The Elecraft KPA500 and KAT500 - the K-Line Dream Station"
Printed, coil bound copies of these are all available at www.elecraft.com

KPA500 and KAT500 Quick Set Up Guide
http://www.ke7x.com/home/k-line-introduction-and-set-up-guide

KAT500 and KXPA500 Tuner Operation
http://www.ke7x.com/home/kat500-and-kxpa100-tuners

"The Elecraft KXPA100, PX3 and 2M/4M Transverters - Assembling the KX3-Line 
Station" available at www.lulu.com.
"The Elecraft K3S and P3"  and a 3rd Edition of the K3 book with K3S upgrade 
parts are works in progress.


> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
> Chris Hallinan
> Sent: Saturday, September 12, 2015 12:33 PM
> To: 
> Subject: [Elecraft] K3 and Yamaha CM500
> 
> I've heard good things about the Yamaha CM500 for the Elecraft K3.  It
> also is quite attractively priced.  However, I noted that it has two
> connectors, presumably one each for mic and headphones, mono and stereo
> respectively.
> 
> However, my K3 is setup as follows:
> 
> Line in|
> Line out  | -> goes to my SignaLink USB
> 
> Speaker Out ---> Goes to a beautiful pair of logitech speakers that
> make the AFX quite dramatic, and I love that setup.  You can see it on
> my QRZ page here:
> https://s3.amazonaws.com/files.qrz.com/y/k1ay/k3p3.jpg
> 
> So, what are my options for using the CM500?  What are others using?
> Should I just build a cable adapter for the front panel mic connector?
> Seems like a kludge and therefore might steer me to the Heil setup.
> 
> Thoughts?
> 
> Thanks and 73,
> Chris - K1AY
> 
> --
> Life is like Linux - it never stands still.
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Re: [Elecraft] K3 and Yamaha CM500


On Sat,9/12/2015 11:32 AM, Chris Hallinan wrote:

So, what are my options for using the CM500?


Easy. Everyone I know of uses the rear panel Mic and Headphone jacks. 
That will mute the speaker by default, so I assign the SPKR+PHONES 
toggle to PF2. Also, you'll need to go into the menu to set the MIC to 
rear panel, and turn on bias. Details are in the menu section of the 
manual.


73, Jim K9YC
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[Elecraft] K3S/100 very low TX power

2015-09-12 Thread Ian White

My K3S/100 has gone into an unusual state where the maximum power
available - on any mode, any band - is about 1.5-2W. This is independent
of any PWR setting above 1W, and the PA does not engage at higher PWR
settings.

All this began on Friday afternoon when I switched on the rig. The K3S
had been working normally a few weeks ago, but hadn't been used for
transmitting in the meantime.

An external power meter confirmed that the TX could not deliver more
than about  1.5-2W. This was  confirmed again by the failure messages
from a TX power calibration. While troubleshooting, I progressively
uninstalled the KPA3 followed by the KPAIO3A adapter board, but with no
change. Even in the simplest 10W configuration with only the small
bridge board in place between the two PA connectors, the K3S would still
only deliver 1.5-2W with no effective PWR control.

I also tried most of the other common tests: unplugged everything else;
reloaded an older saved configuration; EEINIT; reloaded the saved
configuration again. No change.

But I also noticed that the firmware was one release behind the times,
so for lack of any other ideas I did a complete firmware upgrade to the
latest MCU 5.35 / DSP 2.86 / FPF 1.24 - and it started working again!
Normal power output up to 10W, and fully variable up to 100W after
reinstalling the PA module. Another TX calibration confirmed that
everything was fine. 

That pleasant surprise seemed to indicate that the problem had been more
related to firmware than to hardware.

By Friday evening, I believed the problem had gone away... but I should
have known better. 

Today it has failed again, exactly the same way as before. Reloading the
same latest firmware didn't work a second time.

So now it's the weekend and I'm all out of ideas.

While I wait until Monday to contact Elecraft Support, could anyone in
the group offer any suggestions, please?


73 from Ian GM3SEK



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Re: [Elecraft] Elecraft SP3 External Speaker details

Gary  wrote:

> Your offering free postage and upsize with fries with the SP3?

No, just a built-in stereo A/B source switch :)

OTOH, the fries are on me if you ever visit California.

Wayne
N6KR


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Re: [Elecraft] Elecraft SP3 External Speaker details

Ok, I give up, you got me. Will check airline tickets soon :)

Aaaah, what a deal
Grin

Gary 

-Original Message-
From: "Wayne Burdick" 
Sent: ‎13/‎09/‎2015 7:41 AM
To: "Gary" 
Cc: "edevelope...@yahoo.com" ; "Phil Hystad" 
; "Elecraft@mailman.qth.net" 
Subject: Re: Elecraft SP3 External Speaker details

Gary  wrote:

> Your offering free postage and upsize with fries with the SP3?

No, just a built-in stereo A/B source switch :)

OTOH, the fries are on me if you ever visit California.

Wayne
N6KR


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Re: [Elecraft] K3 to Pro III, my thoughts to Jeff, wb0m

2015-09-12 Thread David Cole

I must second Phil's thoughts here...  I also did the A/B, and now have
only a K3...  
-- 
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net

For MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
For Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
For MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info


On Fri, 2015-09-11 at 10:30 -0700, Phil Hystad wrote:
> OK, before this thread gets the whack of Eric, my two bits.
> 
> When I got my K3, I also owned an Icom 756 Pro III.  My plan was to keep both 
> — I am the original owner of the Pro III and I had this feeling that every 
> time I sold a radio I regretted the decision.
> 
> Right from the start I did a detailed comparison and being mostly interested 
> in CW, my comparison tests were all about CW.  
> 
> Picking out weak signals — absolutely no contest.  I could copy a signal Q5 
> on the K3 that I couldn’t even hear on the Pro III even though both were 
> using the same antenna (switching back and forth).
> 
> Pulling out a signal amongst QRM and QRN — absolutely no contest.  The 
> filters on the K3 made a big difference that could not be matched by the 
> filters on the Pro III.
> 
> So, I became hooked on the K3.  When the P3 came out, since I was a lover of 
> the spectrum display on the Pro III, I bought it right away.  Now, the die 
> was cast.  The Pro III took up valuable room in the shack and collected 
> worthless dust I didn’t want to clean.  This went on for two years of total 
> non-use.  Finally, I decided to sell.  Turned on the Pro III for the first 
> time in two years to test it out and then sold it within one day via 
> Craigslist for $1850 (two years ago).
> 
> No, after two years, I have not regretted my decision to sell the Pro III.  I 
> am done with Icom unless they come out with something really great and 
> different (despite the fact that Icom HQ (USA) and their main service shop is 
> just five blocks from my home QTH).
> 
> Note:  if you operate SSB only (or, mostly) then the performance differences 
> between the Icom Pro III and the K3 are probably less dramatic although I 
> never did any comparison tests in SSB mode.
> 
> 73, phil, K7PEH
> 
> 
> 
> 
> > On Sep 11, 2015, at 9:41 AM, Tom Fitzgerald via Elecraft 
> >  wrote:
> > 
> > 
> > I have both radios..bought both new...I'd advise you to keep your Pro III & 
> > add a K3 or K3s but if that's not an option then I would say keep your Pro 
> > III & wait a bit longer for the inevitable "next incarnation" of the 
> > K3...possibly a K4. I think you will find that you will miss your Pro III 
> > greatly if you let it go and you might not be convinced that you made a 
> > good decision after you get your new K3 in your hands. When/if you do get 
> > it in your hands, your first thought will be why is this K3 so much lighter 
> > than my Pro III???Yeah, it's a bit smaller (mine sets on top of my Pro III) 
> > but your Icom weighs in at over 20 pounds and your K3 might only weigh 7 or 
> > 8 pounds...both use an external PS so that's not the reason??? To many 
> > peeps that's awesome while to others it suggests something (or a lot) might 
> > be missing. I'll tell you right now that the Pro III is FAR easier to use 
> > than the K3 and you will need to purchase Fred Cady's (KE7X) manual to 
> > really learn the K3...IMO. You will also likely sense a certain "cheapness" 
> > to the K3 as compared to your old Icom. Depending on what you do with your 
> > radio, you may not notice any performance advantage at 
> > all...again...depends on what you do with it. I like both radios & don't 
> > want to start an argument about this radio vs that radio yet again...there 
> > have been zillions of such debates already, you can spend hours reading 
> > them online. If your Pro III is as flawless as mine (& one of the last ones 
> > produced) and not used that often (I have 3 radios which reduces wear & 
> > tear on any single radio), I would think very long & hard before parting 
> > with it. Hopefully you've sat down in front of a K3 and operated it so that 
> > your not surprised when you open the box, if you haven't done that...you 
> > need to do so. I know some that bought the radio and sold it soon after 
> > buying it because it wasn't what they expected. For those that tell you 
> > that "you won't regret it", maybe they really do regret parting with their 
> > Pro III but just want some company in the dunces corner!  I say that you 
> > may very definitely regret it! Mine is staying right where it is. 
> > 
> > kd0bcf
> > 
> > 
> >  "If the knowledge of a God is the most necessary, why is it not 
> > the most evident and the clearest?”
> >   -Percy Bysshe Shelley,
> >  "The Necessity of Atheism" 1811
> > __
> > Elecraft mailing list
> > Home:

Re: [Elecraft] Elecraft SP3 External Speaker details

Yikes...the SP3 price converted to Australian Dollars comes out to $253.00 plus 
freight.

The joy of living in a resource rich country with nowhere to sell it :-(

Time to start saving the pennies

Gary 

-Original Message-
From: "edeveloper_1--- via Elecraft" 
Sent: ‎13/‎09/‎2015 4:39 AM
To: "Phil Hystad" ; "Wayne Burdick" 
Cc: "Elecraft@mailman.qth.net" 
Subject: Re: [Elecraft] Elecraft SP3 External Speaker details

My shack is a bit cramped too. Currently I have a couple of really inadequate 
computer speakers sitting atop another rig near the K3/P3 combo. That rig sits 
atop the RF deck of an ALS-600, which itself sits on top of a KAT500 that's in 
turn sitting on top of a now-unused MFJ-998.
So that's quite a "tech stack" already.
Perhaps the advent of the SP3 will give me a reason to rearrange all that stuff 
so that I can have a good speaker (or two :)). Come to think of it, replacing 
the ALS-600 with a KPA500 would free up a bit of space as well and improve 
aesthetics at the same time. Wayne, you may have just engineered another 
Elecraft tipping point.
73, Tyler, KC2LST

 On Saturday, September 12, 2015 2:23 PM, Phil Hystad  
wrote:

 Wayne,

I already have a KX3 and I love it for portable QRP work.  The very idea of 
hiding it away in
an SP3 though is just wrong.  Of course, you would never do that — would you?

73, phil, K7PEH

> On Sep 12, 2015, at 11:09 AM, Wayne Burdick  wrote:
> 
> Phil,
> 
> If you ever decide to seriously downsize, you can mount a KX3 inside an SP3.
> 
> Wayne
> N6KR
> 
> 
> On Sep 12, 2015, at 11:05 AM, Phil Hystad  wrote:
> 
>> The idea of producing a matching speaker is inevitable given the history of 
>> matching speakers (Note: obviously the idea of “matching” has different 
>> interpretations by different vendors)….
>> 
>> ...But, unfortunately, I have no plans to buy one because I have no room for 
>> its matchability to be useful as
>> my current K-line sits in a nice line up: K3, P3, KPA500 and there is no 
>> more room for another
>> side-by-side box.  Making room and adding the extra box puts different parts 
>> of the K-line too far
>> apart (at least, for me and my operating comfort).
>> 
>> So, here I am with my favorite rig, the K3 and maybe the last vendor 
>> (Elecraft) that I will ever buy from as long
>> as they keep up their good work, and the first radio (K3) in my personal 
>> history without its own matching
>> speaker due merely  to the lack of space on my desk top.
> 
> 
> 
> 

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Re: [Elecraft] K3S height with stand extended?

6.25" with the stand deployed, and about 4.5" with the stand folded against the 
case.

Wayne
N6KR


On Sep 12, 2015, at 1:32 PM,  wrote:

> Hi All, 
>  I'm designing a hutch for my operating desk and would like to know the
> height of the K3S with the stand extended. The 4" dimension given for the
> rig appears to be with the stand folded.
> 
> Thanks in advance. 
> Jerry Moore

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Re: [Elecraft] Elecraft SP3 External Speaker details

> The joy of living in a resource rich country with nowhere to sell it :-(

Bet you could solar-power the entire country, Gary. I'm picturing one colossal 
array aimed at a boiler on top of Ayers Rock :)

Wayne
N6KR


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[Elecraft] K3 to IC-7800 Comparison?

2015-09-12 Thread Skip Cameron

If anyone has done a K3 to IC-7800 comparison, please reply direct to me
with your assessment.
Thanks,
Skip W5GAI
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Re: [Elecraft] K3 to IC-7800 Comparison?


On Sat,9/12/2015 2:12 PM, Skip Cameron wrote:

If anyone has done a K3 to IC-7800 comparison, please reply direct to me
with your assessment.


I've never seen a 7800, so no experience. However, ARRL and Rob Sherwood 
have. Rob's data is on his webpage. It concentrates on receiver 
performance. I've gathered ARRL Lab test data for a selected bunch of 
modern rigs and published it in a form making it easier to compare the 
rigs as TRANSMITTERS.  My report is at http://k9yc.com/TXNoise.pdf


The original K3 is MUCH cleaner on CW than the 7800. Also, the original 
K3 has about 15 dB less phase noise than the 7800, which matters a lot 
on Field Day and at a multi-TX contest station. The new synth board 
reduces both TX and RX phase noise quite a bit (I've heard numbers in 
the range of 10 dB).


I haven't seen ARRL Lab tests of the new K3S or a K3 with the new synth 
board, but I suspect both will turn out to be at the head of the pack 
for TX cleanliness. Yes, I know about Pure Signal -- NR0V is my neighbor.


73, Jim K9YC
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[Elecraft] Elecraft SP3 External Speaker Details

2015-09-12 Thread Dauer, Edward


Yes, I know I could RT_M; but I am working today while following the SP3 
news, and wondered if anyone knows this offhand:

K3 has sub-RX.  When in more intense operations (DX, contest), when using 
Split I have the two receivers each in one side of a headset (no speakers 
- I don’t even own one).  For casual rag chewing, stereo not necessary for 
me and sometimes having a speaker might be better than using a headset.  
So, the question:  Could there be an assigned programmable function which 
with a single push would switch from stereo headset to mono speaker, thus 
requiring only one SP3 for these applications?  If the answer is yes, I’ll 
be in line for an SP3.

Tnx,

Ted, KN1CBR


>Message: 1
>Date: Sat, 12 Sep 2015 12:22:12 -0600
>From: Rose 
>To: Phil Hystad , Elecraft Reflector
>   
>Subject: [Elecraft]  Elecraft SP3 External Speaker details
>Message-ID:
>   
>Content-Type: text/plain; charset=UTF-8
>
>Phil echoes my situation .
>
>I have a full K-Line and no more space in the line-up.
>
>I'm one of those asking for one early on.  I'd -love- to
>add the speaker, but since I have the 2nd receiver in
>my K3 I need two of 'em. (;-)  I do have two KLM
>bookcase speakers laying on their sides hidden away
>under a raised shelf that holds the K-Line.
>
>When someone gets one Rose will want to know the
>measurements that will apply to a dust cover.  (The
>feet enter into the equation.)
>
>73!
>
>Ken Kopp - K0PP
>
>
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Re: [Elecraft] K3 to IC-7800 Comparison?

2015-09-12 Thread Bill

Every now and then I will think of how many dollars I have tied up in my 
K-Line and how it is way overkill for what I do. Then I read some of 
this type of thread - and I am again convinced that I spent wisely.


Over 55 years on the air and the K-Line beats everything I have ever had 
- no contest.


But, these threads are sure interesting to read.

Bill W2BLC K3-Line

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Re: [Elecraft] K3S height with stand extended?


Mine measures 6. 375" at the highest point.

73
Bob, K4TAX
K3S s/n 10,163

On 9/12/2015 3:32 PM, ae...@carolinaheli.com wrote:

Hi All,
   I'm designing a hutch for my operating desk and would like to know the
height of the K3S with the stand extended. The 4" dimension given for the
rig appears to be with the stand folded.

Thanks in advance.
Jerry Moore
AE4PB, K3S SN# I should know Sunday when the big brown truck (BBT) arrives
with my setup.

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Re: [Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread Don Wilhelm


Hams have historically paid big bucks for speakers that match their rigs.

73,
Don W3FPR

On 9/12/2015 5:11 PM, F5vjc wrote:

You guys must be drunk on KoolAid,

180$ for an, OK Wow... 'Matching' SP3 Speaker,  and most will need two,
  not one
Yikes !

Shipped to Europe, I don't think so!



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Re: [Elecraft] Elecraft SP3 External Speaker details

Wayne

Hand as soon as figure out how to tap into the battery bank I will do 
my damnedness to deplete it with my K-Linegrin

Your offering free postage and upsize with fries with the SP3?

Ducking for cover now :-)

Gary 

-Original Message-
From: "Wayne Burdick" 
Sent: ‎13/‎09/‎2015 6:54 AM
To: "Gary" 
Cc: "edevelope...@yahoo.com" ; "Phil Hystad" 
; "Elecraft@mailman.qth.net" 
Subject: Re: [Elecraft] Elecraft SP3 External Speaker details

> The joy of living in a resource rich country with nowhere to sell it :-(

Bet you could solar-power the entire country, Gary. I'm picturing one colossal 
array aimed at a boiler on top of Ayers Rock :)

Wayne
N6KR


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Re: [Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread Marc Veeneman

Wayne, you know we need 2 of these things to handle pileups with split.  

One for the battery (no heat) and one for the PS ($13 fan from Amazon).

I hope there's a "Buy one, get second for XX%" deal coming to the price list.

And for the KX3?  Same 2-speaker need, but in a smaller form factor.  Again, I 
hope we see a BOGO price structure -- as soon as the SPX3 is ready to ship.

:-)
-- 
Marc  W8SDG




> On Sep 12, 2015, at 8:44 PM, Wayne Burdick  wrote:
> 
> Marc,
> 
> The SP3 is so solid you could park a truck on it. It might even be EMP-proof, 
> but we don't have adequate test equipment to determine this.
> 
> So...good place to stick a battery or power supply. But if there's any risk 
> of it getting too hot inside, add some ventilation holes and possibly a fan.
> 
> Wayne
> N6KR
> 
> 
>> On Sep 12, 2015, at 5:40 PM, Marc Veeneman  wrote:
>> 
>> You might consider it.  I'd love to hide my LiFePO4 pack and the PowerWerx 
>> power supply inside  one.  My PowerWerx V/A display just died anyway, no 
>> reason to have it visible anymore.
>> -- 
>> Marc  W8SDG
>> 
>> 
>>> On Sep 12, 2015, at 8:33 PM, Wayne Burdick  wrote:
>>> 
>>> We don't have any current plan to offer the enclosure by itself. 
>>> 
>>> 73,
>>> Wayne
>>> N6KR
>>> 
 On Sep 12, 2015, at 5:28 PM, "Richard W. Solomon"  
 wrote:
 
 Would it be possible to buy just the enclosure ?
 It is said the P3 and the SP3 are the same size.
 
 73, Dick, W1KSZ
> 
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Re: [Elecraft] K3 and Yamaha CM500

2015-09-12 Thread Chris Hallinan

Duh. I shoulda looked at the rear panel before asking.  :-P

On Sat, Sep 12, 2015 at 3:16 PM, Jim Brown 
wrote:

> On Sat,9/12/2015 11:32 AM, Chris Hallinan wrote:
>
>> So, what are my options for using the CM500?
>>
>
> Easy. Everyone I know of uses the rear panel Mic and Headphone jacks. That
> will mute the speaker by default, so I assign the SPKR+PHONES toggle to
> PF2. Also, you'll need to go into the menu to set the MIC to rear panel,
> and turn on bias. Details are in the menu section of the manual.
>
> 73, Jim K9YC
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>



-- 
Life is like Linux - it never stands still.
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Re: [Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread Richard W. Solomon

Would it be possible to buy just the enclosure ?
It is said the P3 and the SP3 are the same size.

73, Dick, W1KSZ

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob
McGraw - K4TAX
Sent: Saturday, September 12, 2015 5:15 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Elecraft SP3 External Speaker details

I use a pair of "off the shelf" brand speakers which have 2" x 4" ovals in a
nice efficient solid enclosure that is 5" deep.  They stand the same height
as the K3S and are matte  black.  With the 2 channel features  and audio of
the radio they sure sound nice. New, $49.95 for the pair.

73
Bob, K4TAX
K3S s/n 10,163

On 9/12/2015 7:02 PM, Don Putnick via Elecraft wrote:
> "- custom-built, high-quality 4-ohm oval speaker with outstanding 
> passband characteristics"I have the honor of knowing the speaker 
> designer and his reputation in the audio community. He put a lot of 
> talent, love and care into that design. I'm putting it on my Christmas 
> list!73 Don NA6Z 
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Re: [Elecraft] K3 to IC-7800 Comparison?

2015-09-12 Thread George Fritkin via Elecraft

You guys are right, the Elecraft radio are great.  But I have lots of radios 
from many manufacturers, current stuff, and Elecraft will have to keep on there 
toes to stay up there.

Sent from my iPad

> On Sep 12, 2015, at 4:57 PM, Bill  wrote:
> 
> Every now and then I will think of how many dollars I have tied up in my 
> K-Line and how it is way overkill for what I do. Then I read some of this 
> type of thread - and I am again convinced that I spent wisely.
> 
> Over 55 years on the air and the K-Line beats everything I have ever had - no 
> contest.
> 
> But, these threads are sure interesting to read.
> 
> Bill W2BLC K3-Line
> 
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Re: [Elecraft] Elecraft SP3 External Speaker: built-in power supply?

The it would no be badges UPS3S
:-)
Gary 

-Original Message-
From: "Wayne Burdick" 
Sent: ‎13/‎09/‎2015 3:46 AM
To: "Fred Townsend" 
Cc: "elecraft@mailman.qth.net" ; "'Mike K2MK'" 

Subject: [Elecraft] Elecraft SP3 External Speaker:  built-in power supply?

"Fred Townsend"  wrote:

> Will the speaker housing have a place to slide the Powerwerx supply into the 
> back?

Hi Fred,

The SP3 has a lot of room inside and is very solidly constructed, so it's a 
great platform for a DIY add-in like a power supply. You would only have to 
modify one piece of sheet metal -- the bottom cover -- since that is also the 
mounting point for the A/B switch in front and jacks in back. 

Available interior space is approximately 3.3"H x 5.9"W x 7.3"D. Audio jacks 
are arranged vertically along one edge of the rear panel, leaving several 
inches of space for additional connectors, possibly even a small fan.

Of course you'd have to remove some of the acoustic baffle material, altering 
the AF response curve in an unpredictable manner. Just thinking out loud, here, 
but I wouldn't use it as a hiding place for your collection of rare idiophones. 

73,
Wayne
N6KR

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Re: [Elecraft] K3 to Pro III, my thoughts to Jeff, wb0m

2015-09-12 Thread Jim Lowman

I did something similar last year at the SeaPac Convention, buying a 
Kenwood TS-2000X for the same coverage.


However, the 2000X is my dedicated VHF/UHF radio.
For HF, my K3 and new K3S is the go-to option.

73 de Jim - AD6CW

On 9/12/2015 11:17 AM, Fred Smith wrote:

I bought my IC-9100 after I started my K line and it’s a keeper as nothing will 
do all that it does 160m-1.2 gig including D-Star. It is the last of my base 
radios that aren't Elecraft and has no match out there as far as all band all 
modes. It just leaves a bit to be desired in the HF bands for me anyway 
compared to my K3 or KX3.


73,
Fred/N0AZZ

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Re: [Elecraft] OT - phones

2015-09-12 Thread Eric Swartz - WA6HHQ, Elecraft

No problem. That happens all the time. :-)

73,

Eric
elecraft.com
_..._



> On Sep 12, 2015, at 11:47 AM, Dauer, Edward  wrote:
> 
> Sorry, Eric; I sent mine at 02:40 before I saw yours (18:30).  Didn¹t mean
> to be a scofflaw.
> 
> 
> Ted, KN1CBR 
> 
>> 
>> --
>> 
>> Message: 7
>> Date: Fri, 11 Sep 2015 18:30:48 -0700
>> From: "Eric Swartz - WA6HHQ, Elecraft" 
>> To: Elecraft Reflector Reflector 
>> Subject: Re: [Elecraft] K3 vs K3s..."to be or not to be an "s"
>> Message-ID: <963c15ac-76aa-4553-a2fa-db3d345b9...@elecraft.com>
>> Content-Type: text/plain;charset=us-ascii
>> 
>> Let's drop the OT apple iPhone portion of this thread as its drifting a
>> little far afield.
>> 
>> 73,
>> Eric 
>> moderator etc. (at the ARRL Sw show selling lots of SP3s :-)
>> elecraft.com
>> _..._
> 
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Re: [Elecraft] Elecraft SP3 External Speaker details

Me too.
I suppose I could just get another kat500 for Ant. 2, but I don't have 6 
antennas.

Anyone done this?

Gary 

-Original Message-
From: "Wes (N7WS)" 
Sent: ‎13/‎09/‎2015 12:28 PM
To: "elecraft@mailman.qth.net" 
Subject: Re: [Elecraft] Elecraft SP3 External Speaker details

I'd love to have an (unpunched) KAT500 enclosure. I have some misc stuff that 
could mount in one and it would get the K3 to the same height as the 
KAT500/KPA500 combo.

Maybe a new product line?

On 9/12/2015 5:33 PM, Wayne Burdick wrote:
> We don't have any current plan to offer the enclosure by itself.
>
>

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Re: [Elecraft] Elecraft SP3 External Speaker details

We don't have any current plan to offer the enclosure by itself. 

73,
Wayne
N6KR

On Sep 12, 2015, at 5:28 PM, "Richard W. Solomon"  wrote:

> Would it be possible to buy just the enclosure ?
> It is said the P3 and the SP3 are the same size.
> 
> 73, Dick, W1KSZ
> 
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob
> McGraw - K4TAX
> Sent: Saturday, September 12, 2015 5:15 PM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Elecraft SP3 External Speaker details
> 
> I use a pair of "off the shelf" brand speakers which have 2" x 4" ovals in a
> nice efficient solid enclosure that is 5" deep.  They stand the same height
> as the K3S and are matte  black.  With the 2 channel features  and audio of
> the radio they sure sound nice. New, $49.95 for the pair.
> 
> 73
> Bob, K4TAX
> K3S s/n 10,163
> 
> On 9/12/2015 7:02 PM, Don Putnick via Elecraft wrote:
>> "- custom-built, high-quality 4-ohm oval speaker with outstanding 
>> passband characteristics"I have the honor of knowing the speaker 
>> designer and his reputation in the audio community. He put a lot of 
>> talent, love and care into that design. I'm putting it on my Christmas 
>> list!73 Don NA6Z 
>> __
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>> This list hosted by: http://www.qsl.net Please help support this email 
>> list: http://www.qsl.net/donate.html Message delivered to 
>> rmcg...@blomand.net
>> 
>> 
>> 
> 
> 
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Re: [Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread Marc Veeneman

You might consider it.  I'd love to hide my LiFePO4 pack and the PowerWerx 
power supply inside  one.  My PowerWerx V/A display just died anyway, no reason 
to have it visible anymore.
-- 
Marc  W8SDG


> On Sep 12, 2015, at 8:33 PM, Wayne Burdick  wrote:
> 
> We don't have any current plan to offer the enclosure by itself. 
> 
> 73,
> Wayne
> N6KR
> 
>> On Sep 12, 2015, at 5:28 PM, "Richard W. Solomon"  
>> wrote:
>> 
>> Would it be possible to buy just the enclosure ?
>> It is said the P3 and the SP3 are the same size.
>> 
>> 73, Dick, W1KSZ
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[Elecraft] K3/0_Mini Operator Manual

2015-09-12 Thread George via Elecraft

I am setting up a K3/0-Mini for a friend who will use it to operate  remote 
stations accessible via remotehams.com service.  The operator  of the 
K3/0-Mini, although licensed for many year and a very accomplished op,  has 
never 
used a K3 and, therefore, is unfamiliar with the controls on the  
K3/0-Mini.  

The K3/0-Mini was delivered with an Owner's Manual.  However, the  manual 
is limited to describing how  to set up the Mini to  work with a PC, how to 
operate with the RemoteRig 1258 MKII System (which  we are not using), and 
how to update the Mini's firmware.  
 
The K3/0-Mini Owner's Manual does not contain any information about how to  
use all of the controls on the Mini, or any information about its Menu and  
Config selections. In the meantime, I have loaned the op my K3 manual, and  
held training session on the basics of operating a K3.
 
Please let me know if there is a more complete user-oriented K3/0-Mini  
Operator's Manual, or if will one be forthcoming in the future.
 
Thanks, George.

 
George  Wagner, K5KG
Sarasota, FL  34242
941-400-1960
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Re: [Elecraft] Elecraft SP3 External Speaker details

Wouldn't putting something inside the enclosure change the acoustic 
properties?   I'd seem to think so.



73
Bob, K4TAX
K3S s/n 10,163

On 9/12/2015 7:44 PM, Wayne Burdick wrote:

Marc,

The SP3 is so solid you could park a truck on it. It might even be EMP-proof, 
but we don't have adequate test equipment to determine this.

So...good place to stick a battery or power supply. But if there's any risk of 
it getting too hot inside, add some ventilation holes and possibly a fan.

Wayne
N6KR


On Sep 12, 2015, at 5:40 PM, Marc Veeneman  wrote:


You might consider it.  I'd love to hide my LiFePO4 pack and the PowerWerx 
power supply inside  one.  My PowerWerx V/A display just died anyway, no reason 
to have it visible anymore.
--
Marc  W8SDG



On Sep 12, 2015, at 8:33 PM, Wayne Burdick  wrote:

We don't have any current plan to offer the enclosure by itself.

73,
Wayne
N6KR


On Sep 12, 2015, at 5:28 PM, "Richard W. Solomon"  wrote:

Would it be possible to buy just the enclosure ?
It is said the P3 and the SP3 are the same size.

73, Dick, W1KSZ

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Re: [Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread Wes (N7WS)

I'd love to have an (unpunched) KAT500 enclosure. I have some misc stuff that 
could mount in one and it would get the K3 to the same height as the 
KAT500/KPA500 combo.


Maybe a new product line?

On 9/12/2015 5:33 PM, Wayne Burdick wrote:

We don't have any current plan to offer the enclosure by itself.




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[Elecraft] Weekly Elecraft SSB Net Announcement

2015-09-12 Thread Ian - Ham

All,

 

The weekly Elecraft SSB net meets tomorrow, 9/13/15, at 18:00 UTC, on
14.3035 +/-. I will be net control from the suburbs north of Atlanta. Please
join us.

 

73 de,

 

--Ian

Ian Kahn, KM4IK
Roswell, GA  EM74ua
km4ik@gmail.com  

10-10 #74624, North Georgia Chapter #2038

PODXS 070 #1962
K3# 281, P3 #688, KAT500 #860, KPA500 #1468

 



---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
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[Elecraft] SP3 External Speaker details

2015-09-12 Thread Alan Geller via Elecraft

Wayne,
Could you comment on what steps you took for RF isolation. I assume that since 
it wasn’t mentioned, there
is no small audio amp in the speaker box.

Thanks and Regards,

alan/K6ADG
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Re: [Elecraft] [K1] Band Configs

2015-09-12 Thread Phil Wheeler

It's a two-band radio, Lane.  You can do a board 
change to change which two bands, but only two at 
one time.


There was a 4-band K1 at one time, but a parts 
issue has eliminated that kit. Some still have 
time, and you might see a used 4-band K1 
advertized occasionally.


73, Phil W7OX

On 9/12/15 8:44 PM, Lane wrote:

Help me in understanding the K1 please.

Without the KFL1-2 mod, it supports two bands.
With the KFL1-2 mod, it's supports an additional two bands.
With a 2nd KFL1-2 mod, it supports a change of the two bands if swapped out
w/ the first KFL1-2 mod.

Total enclosed number of max bands at any one time is 4

Is that correct?


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Re: [Elecraft] [K1] Band Configs

2015-09-12 Thread Matt Maguire

Not quite. Without the KFL1-2 module, it supports zero bands. with the KFL1-2 
module it supports two bands. You can swap this KFL1-2 module with another one 
to get two other bands. But you can only equip one KFL1-2 module in the radio 
at any one time. Maximum bands at any one time is 2.
73, Matt VK2RQ

Envoyé à partir d'Outlook

_
From: Lane 
Sent: dimanche, septembre 13, 2015 1:44 PM
Subject: [Elecraft] [K1] Band Configs
To:  


Help me in understanding the K1 please.

Without the KFL1-2 mod, it supports two bands.
With the KFL1-2 mod, it's supports an additional two bands.
With a 2nd KFL1-2 mod, it supports a change of the two bands if swapped out
w/ the first KFL1-2 mod.

Total enclosed number of max bands at any one time is 4

Is that correct?
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Re: [Elecraft] Elecraft SP3 External Speaker details

Marc,

The SP3 is so solid you could park a truck on it. It might even be EMP-proof, 
but we don't have adequate test equipment to determine this.

So...good place to stick a battery or power supply. But if there's any risk of 
it getting too hot inside, add some ventilation holes and possibly a fan.

Wayne
N6KR


On Sep 12, 2015, at 5:40 PM, Marc Veeneman  wrote:

> You might consider it.  I'd love to hide my LiFePO4 pack and the PowerWerx 
> power supply inside  one.  My PowerWerx V/A display just died anyway, no 
> reason to have it visible anymore.
> -- 
> Marc  W8SDG
> 
> 
>> On Sep 12, 2015, at 8:33 PM, Wayne Burdick  wrote:
>> 
>> We don't have any current plan to offer the enclosure by itself. 
>> 
>> 73,
>> Wayne
>> N6KR
>> 
>>> On Sep 12, 2015, at 5:28 PM, "Richard W. Solomon"  
>>> wrote:
>>> 
>>> Would it be possible to buy just the enclosure ?
>>> It is said the P3 and the SP3 are the same size.
>>> 
>>> 73, Dick, W1KSZ

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Re: [Elecraft] K3 to IC-7800 Comparison?

2015-09-12 Thread Wes (N7WS)


I'd like a comparison with the IC-7851.  
https://www.youtube.com/watch?v=-sVpoPJKgo8

On 9/12/2015 2:31 PM, Jim Brown wrote:

On Sat,9/12/2015 2:12 PM, Skip Cameron wrote:

If anyone has done a K3 to IC-7800 comparison, please reply direct to me
with your assessment.


I've never seen a 7800, so no experience. However, ARRL and Rob Sherwood have. 
Rob's data is on his webpage. It concentrates on receiver performance. I've 
gathered ARRL Lab test data for a selected bunch of modern rigs and published 
it in a form making it easier to compare the rigs as TRANSMITTERS.  My report 
is at http://k9yc.com/TXNoise.pdf


The original K3 is MUCH cleaner on CW than the 7800. Also, the original K3 has 
about 15 dB less phase noise than the 7800, which matters a lot on Field Day 
and at a multi-TX contest station. The new synth board reduces both TX and RX 
phase noise quite a bit (I've heard numbers in the range of 10 dB).


I haven't seen ARRL Lab tests of the new K3S or a K3 with the new synth board, 
but I suspect both will turn out to be at the head of the pack for TX 
cleanliness. Yes, I know about Pure Signal -- NR0V is my neighbor.


73, Jim K9YC
_


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Re: [Elecraft] SP3 External Speaker details

The SP3 is passive. The K3's AF amp has plenty of audio drive.

We have seen zero RFI issues during our testing.

73,
Wayne
N6KR


On Sep 12, 2015, at 7:56 PM, Alan Geller via Elecraft 
 wrote:

> Wayne,
> Could you comment on what steps you took for RF isolation. I assume that 
> since it wasn’t mentioned, there
> is no small audio amp in the speaker box.


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Re: [Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread Wes (N7WS)

I've thought of making my own.  I can't bend sheet steel or even aluminum in 
such narrow cross section but some 1 1/2" aluminum channel should work for the 
front and back panels. Everything else is flat stock.


The sharp edges on the channel could be dressed by filing.  I'd probably try it 
on a router table with a carbide round over bit for better precision.  I haven't 
done this before but I've successfully cut aluminum plate on a table saw.  I 
would assemble the plates using bar stock and screws like I did 30 years ago 
when I was building amplifiers. For example: 
http://sadxa.org/n7ws/Left%20Interior%20View.jpg   Sort of like Elecraft's "2D" 
fasteners.



On 9/12/2015 7:46 PM, Gary wrote:

Me too.
I suppose I could just get another kat500 for Ant. 2, but I don't have 6 
antennas.

Anyone done this?

Gary

-Original Message-
From: "Wes (N7WS)" 
Sent: ‎13/‎09/‎2015 12:28 PM
To: "elecraft@mailman.qth.net" 
Subject: Re: [Elecraft] Elecraft SP3 External Speaker details

I'd love to have an (unpunched) KAT500 enclosure. I have some misc stuff that
could mount in one and it would get the K3 to the same height as the
KAT500/KPA500 combo.

Maybe a new product line?

On 9/12/2015 5:33 PM, Wayne Burdick wrote:

We don't have any current plan to offer the enclosure by itself.



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[Elecraft] [K1] Band Configs

2015-09-12 Thread Lane

Help me in understanding the K1 please.

Without the KFL1-2 mod, it supports two bands.
With the KFL1-2 mod, it's supports an additional two bands.
With a 2nd KFL1-2 mod, it supports a change of the two bands if swapped out
w/ the first KFL1-2 mod.

Total enclosed number of max bands at any one time is 4

Is that correct?
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[Elecraft] How to recover from P3 Firmware load failure

2015-09-12 Thread Amateur Radio Operator N5GE

The title says it all...


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Re: [Elecraft] [K2] LiFePO4 replacement for internal SLA battery in K2

2015-09-12 Thread Bill W4ZV

Hi Steve,

I'm following this topic with great interest! I've been using my K2 for
extended operations (8 hours) from SOTA summits and have been lugging a 5
pound 7AH SLA. Needless to say I'm very interested in going on a weight
diet for the K2!

I've had good success using external 1AH LiPOs for smaller rigs (ATS-3 and
Weber Tri-Bander) but they're CW only and band limited. They're also very
inflexible for quick band/mode, where the K2 shines. I've had zero problems
with LiPOs but I religiously charge and store them per manufacturer's specs.
I'm also a little leery of internal batteries of any type. Since I already
have a balancing charger for LiPOs, I've been considering a larger capacity
LiPO (e.g. 4.5 AH available on eBay for <$25) for the K2. For comparison,
this battery weighs <12 ounces versus the 5 pound 7 AH SLA, so it weighs 86%
less and probably has sufficient life for most of my operations.

I'd be interested to hear any comments from others about any leakage
problems with internal batteries.

73, Bill W4ZV

--
View this message in context:
http://elecraft.365791.n2.nabble.com/K2-LiFePO4-replacement-for-internal-SLA-battery-in-K2-tp7607467p7607473.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] [K2] LiFePO4 replacement for internal SLA battery in K2

2015-09-12 Thread inventor61 .

I had strongly considered the LiPo type secondary-cell power packaging
option and rejected it.

Energy density in that chemistry/package is amazing of course.  But that
equation is also true of a bomb.  I have no problem with the LiPo in my
iPad, Galaxy S5 phone, and laptop, so, it's not a blind bias.

It doesn't take too much YouTube searching to find dramatic examples of
LiPo powered RC vehicles and the like bursting into flames.

There's a good reason that *all* these lithium cells are considered hazmat
now, not just the lithium thionyl chloride ones ... on failure, those burn
and emit nerve gas; they are Class 9 hazmat!  They are also not
rechargeable anyway.

Because this particular power pack would be fully enclosed in the
metal-cased K2, and would be in the 9 ampere-hour range in this desired
form factor ... if such a LiPo pack decided to self-immolate, the rig would
not only be destroyed but I'd have a real secondary incendiary hazard on my
hands.

The charging, power regulation and protective circuitry, etc., needed to
use the LiPo chemistry/packaging inside a K2 took that consideration off
the table for me.  YMMV.

The 'safe-failure-mode' secondary-cell chemistries I considered were NiMH
and LiFePO4.

The NiMH almost won.

By the way, I have the special spot-welder device and strap/bracket
supplies needed to fabricate my own packs.  Extensive experimenting with
NiMH cells really had me convinced to go that way for some time.

Then, I got some newer LiFePO4 cells and also some new LiCoO2 cells, and
started the "2015 edition" revisiting of the selection analysis.  I had
last looked at the issue in 2010.

It didn't take long before my own clumsiness lit one of the 18650-size
LiCoO2 cells up.  I caught the mistake just as it was about to get really
serious.  Lesson learned.  Now I know why the manufacturers of those
include the built-in-per-cell safety circuit option!  The cells I tried
were the 'raw' and unprotected type, selected purposefully so as to not
have the size, cost, and loss of the protective circuitry.  For these and
other reasons, this chemistry/packaging option was rejected for the
particular use-case.

I could not achieve a better-than-the-SLA result with NiMH.

Hope my describing a portion of the ferreting process in a bit more depth
is of use to others.

The K2 is a remarkably competent field radio.  Being able to actually use
it in the field, conveniently, makes my now-teenage rig all the more
valuable to me.  Having a modern internal power source will just be icing
on an already tasty cake.

73  Steve KZ1X
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Re: [Elecraft] Elecraft SP3 External Speaker details

2015-09-12 Thread edeveloper_1--- via Elecraft

Hi Wayne,
Thanks for the update - from the photos on Twitter it looks like a very nice 
unit. As I recall there have been a number of discussions on this reflector 
debating the merits of various third-party external speakers and quite a few 
called on Elecraft to produce one of its own, to match the K-Line.
Congratulations to Elecraft for once again listening to its customers and 
responding. I look forward to hearing the new SP3 in action!
73, Tyler, KC2LST
--Message: 28
Date: Fri, 11 Sep 2015 17:30:20 -0700
From: Wayne Burdick 
To: Elecraft Reflector 
Subject: [Elecraft] Elecraft SP3 External Speaker details
Message-ID: 
Content-Type: text/plain; charset=us-ascii

Hi all,

The SP3 is our new external speaker. We'll have a product brochure and photos 
soon, but here's a brief list of features:

- styled to match the Elecraft K-Line

- same size as the Elecraft P3 Panadapter, with matching fold-up tilt stand

- works with any transceiver, but optimized for use with the K3 and K3S

- custom-built, high-quality 4-ohm oval speaker with outstanding passband 
characteristics

- A/B source selector switch

- two jacks for mono or stereo input sources, and one mono extension output, 
allowing
  convenient switching of the following configurations:

  - one transceiver, one speaker
  - two transceivers, one speaker, selected by A/B switch
  - one transceiver, two speakers (stereo)
  - two transceivers, two speakers, selected by A/B switch (stereo)

The SP3 will be sold assembled/tested only.

73,
Wayne
N6KR
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[Elecraft] Switching the K3 or K3S to 600 meters with a macro