Re: [Elecraft] Dipoles and Heat

[David Woolley (E.L)]

n...@yahoo.com wrote:

> However, using my "backwards" logic from above, consider actually
+ trying to absorb the transmitter power in the building without it
+ leaking to the outside. Having done measurements in anechoic chambers
+ and free-space antenna ranges, I can tell you that it's difficult.

This isn't about high attenuations.  The reasoning I used here is that, 
if building structure losses were negligible, loft antennas would be 
standard for the higher bands, rather than considered a last resort.

> 
> Or try to imagine purposely attempting to heat the attic with a 50 W
+ heating element. If it's a cold climate, it's not going to happen and if
+ it's like where I live where last week the air temperature was 102F and
+ the solar insolation on the roof was 1 KW/m^2, what effect would another
+ 50 W make?

I'd agree that the additional heat load would be rather small, and I 
would be curious to know the reason for the question.

PS.  Your email program has a couple of problems.  Firstly it is not 
setting an In-Reply-To header, which is breaking threading of the list 
when viewed with threading mail programs on the web interfaces. 
Secondly it is using a non-standard end of line sequence in its quoted 
printable encoding. That will probably be handled by the error recovery 
in most software.  (MIME encoding the end of line also goes against the 
design philosophy of MIME quoted printable, namely that the message 
should almost work when viewed by a plain text only email program.)
> 

-- 
David Woolley
"The Elecraft list is a forum for the discussion of topics related to 
Elecraft products and more general topics related ham radio"
List Guidelines 
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Re: [Elecraft] K3 VFO Tuning Rates (alternative: via FREQ ENT)

[pd0psb]

I've seen some "ballistic" radios working very well.
You don't notice it untill you really spin the wheel making very clear you
want to QSY.
Other radios tend to get nervous and seem to "skid" on it.
It's a matter of choosing the best switch-over point in relation to
encoder/speed/user.

The option in K3 to do course steps with with RIT encoder and fine with VFO
is really nice!
Use that all the time. It would be nice though to have the option to revert
to full .000kHz somehow.

73'
Paul 
PD0PSB



That would also "drive me wild", but then I would not have to use it 
unless I selected it explicitly, so it is quite palatable to me.  
Remember the "KISS" principle - I object to my radio doing "magic 
things" for me.

-- 
View this message in context: 
http://n2.nabble.com/K3-VFO-Tuning-Rates-tp2970398p2979579.html
Sent from the Elecraft mailing list archive at Nabble.com.

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[Elecraft] K144XV

[John Lemay]

Hi all

I'm really keen on the 2m transverter module, but having gone through the
motions of completing the order form, it looks as though the cheapest
carrier will be UPS Worldwide at $109.20.

All of a sudden I'm losing interest. There will be the cost of the
transverter and replacement interface board, carriage, and import tax to
pay.

I can't see an easy way round this 

Regards

John G4ZTR
 

__ Information from ESET NOD32 Antivirus, version of virus signature
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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[Svend Spanget]

OK, the new K144XV-F costs 349.95. Also needed is KXV3A_UPGR (39.95). A
total of 396.90.
This is 26.95 more than XV144 and you don't have the
inconvenience/pleasure of building it yourself. The noise figure is worse
and the output power less than the half.
Are there any benefits at all with K144XV-F (besides not having an extra
box on the desk)?

73 de Svend, OZ7UV




TDC Bredbånd for 0 kr.
- Spar 695 kr. Se http://tdc.dk/freemailtilbud/

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Re: [Elecraft] K144XV

[Jon K Hellan]

John Lemay wrote:
> Hi all
> 
> I'm really keen on the 2m transverter module, but having gone through the
> motions of completing the order form, it looks as though the cheapest
> carrier will be UPS Worldwide at $109.20.
> 
> All of a sudden I'm losing interest. There will be the cost of the
> transverter and replacement interface board, carriage, and import tax to
> pay.
> 
> I can't see an easy way round this 
> 

There are U.S. remailing services. And you may have friends who visit the U.S.

LA4RT Jon
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Re: [Elecraft] K144XV

[David Pratt]

In a recent message, John Lemay  wrote 
...
>All of a sudden I'm losing interest. There will be the cost of the
>transverter and replacement interface board, carriage, and import tax to
>pay.
>
>I can't see an easy way round this 

You might like to consider the XV144, John. These are occasionally to be 
seen on eBay and I believe there is at least one person in the UK on 
here who is selling an unbuilt kit now the K144XV has been launched.

The XV144 works very well with the K3 with its existing KXV3 and has the 
added advantage that it can also be used with the K2 and other 
transceivers.  It runs 20W output on most modes but half that power on 
FM/AM.  I am more than satisfied with mine.

73
-- 
David G4DMP
Leeds, England, UK
--


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[Elecraft] New K1-4 FS

[Brent Sutphin]

>I have a newly built K1-4 for sale.  It covers the lower 80khz for the 15, 
>20, 30 and 40 meter bands.  It also has the following options installed, 
>KAT1 auto antenna tuner, K1BKL back light for the display and the KNB1 
>noise blanker.  Also included is a tilt stand that was professionally made 
>of stainless steel  in a local machine shop. The tilt stand looks and works 
>great.  All manuals as well as connectors that came with the kit will also 
>be included. I enjoy building kits and have been doing it for over thirty 
>years. This one is complete and now it's time to move on to something else. 
>The radio is new and meets all Elecraft specifications. Price is $625 
>shipped to your door (US addresses).  Pictures available on request.
>
> Brent  WB4X 

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Re: [Elecraft] K3 - 2 meters and MARS/CAP

[HowardZ]

Well, the Mars mod for an ICOM 7000 gives 118-173MHz tx coverage.
The Mars mod for the ICOM 91AD handheld gives 137 to 174 MHz tx coverage.
The Mars mod for the ICOM 746PRO gives 108-174 Mhz tx coverage.

Of course the RX coverage is at least as large as the tx coverage.

Now, this is what the most popular current ICOM radios provide after the
MARs MOD.
I think the AM Air Band used by aircraft and airports is 108 to 137, so for
MARS 137 to 174 would do very well.

However, what is "needed" is probably less.

I find that in my area, MARS tries to keep their VHF frequencies close to
the 2M ham band - probably so that existing 2m antennas will function. 
However, I know of DHS emcom frequencies that are considerably further away
from the 2m ham band.

My two cents,
Hope it helps.

Howard




Not currently. It covers 144-148 MHz, all modes.

What frequencies ranges are needed for 2M MARS/CAP?

73, Eric  WA6HHQ



-- 
View this message in context: 
http://n2.nabble.com/K3---2-meters-and-MARS-CAP-tp2978243p2980527.html
Sent from the Elecraft mailing list archive at Nabble.com.

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Re: [Elecraft] Dipoles and Heat

[Paul Gates]

On Tue, May 26, 2009 at 8:10 PM, Ron D'Eau Claire  wrote:

> Assuming the heat question was from a safety standpoint, I'd be more
> concerned with corona discharge than heat.
>
> Many attic antennas have very limited attention paid to insulating the
> high-impedance points, assuming the dry wood rafters are adequate. There
> are
> been reports of fires caused by just such assumptions where the high
> impedance end of the wire was near dust and other combustible materials.
>
> Ron AC7AC


Ron I did not realize that heat was a factor in an attic dipole. I lived in
an Apt complex in Lansing, Hich and I ran a 119ft dipole in

> Lansing, Mich. Fed with coax. The antenna wire was insulated #14 wire.


Paul Gates

>
>
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-- 
Paul, KD3JF
Glen Burnie, MD
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Re: [Elecraft] K3 VFO Tuning Rates (alternative: via FREQ ENT)

[N2TK]

I like it.
N2TK, Tony 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of wayne burdick
Sent: Wednesday, May 27, 2009 12:23 AM
To: Ken Kopp
Cc: elecraft@mailman.qth.net; d...@w3fpr.com
Subject: Re: [Elecraft] K3 VFO Tuning Rates (alternative: via FREQ ENT)

One idea already on the list is to have the VFO A and/or VFO B knobs be 
"live" after you tap FREQ ENT, so that instead of entering a numeric 
frequency, you could select the frequency in 1 MHz (VFO A) or 100 kHz 
(VFO B) steps. Tap FREQ ENT again to return to normal tuning.

Wayne
N6KR

On May 26, 2009, at 5:30 PM, Ken Kopp wrote:

> A "ballistic" tuning rate on my K3 would be below the
> bottom of my wish list.  (:-))
>
> It's faster to use the FREQ ENT method, if at all.
>
> 73! Ken Kopp - K0PP
>  elecraftcov...@rfwave.net
>  http://tinyurl.com/7lm3m5
>
>
>

---

http://www.elecraft.com

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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[Rajiv Dewan, N2RD]

I asked this very question at Dayton.

The K144XV will cover 4Mhz of the 2m band while the XV144 only covers  
2MHz.

What I do not know is if K144XV allows 2m reception on the subreceiver.

Raj, N2RD

On May 27, 2009, at 3:55 AM, Svend Spanget wrote:

> OK, the new K144XV-F costs 349.95. Also needed is KXV3A_UPGR  
> (39.95). A
> total of 396.90.
> This is 26.95 more than XV144 and you don't have the
> inconvenience/pleasure of building it yourself. The noise figure is  
> worse
> and the output power less than the half.
> Are there any benefits at all with K144XV-F (besides not having an  
> extra
> box on the desk)?
>
> 73 de Svend, OZ7UV
>
>
> 
>
> TDC Bredbånd for 0 kr.
> - Spar 695 kr. Se http://tdc.dk/freemailtilbud/
>
> Denne mail er sendt via Mail på TDC Online
> - Læs mere om TDC's mailtjeneste på http://mail.tdconline.dk/
> 
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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[Lyle Johnson]

> What I do not know is if K144XV allows 2m reception on the subreceiver.

Yes, it does.

>> OK, the new K144XV-F costs 349.95.

That's the factory built/installed version.  The "kit" version 
(K144XV-K) is listed at $299.95.

73,

Lyle KK7P

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Re: [Elecraft] K3 VFO Tuning Rates

[Brendan Minish]

I have used radios with ballistic tuning and if implemented well it's a
pleasure to use. my Icom 756pro2 did this as did the 7800 

my Racal ra3702 has ballistic tuning too but the jumps up in tuning rate
are too large and occur at the wrong rotation speeds so it's a bit of a
nuisance on this radio, thankfully it can be turned off.

Implemented well it would be a nice feature to have on the K3 
 
-- 
73
Brendan EI6IZ 

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Re: [Elecraft] Dipoles and Heat

[Ron D'Eau Claire]

David Woolley wrote:

This isn't about high attenuations.  The reasoning I used here is that, 
if building structure losses were negligible, loft antennas would be 
standard for the higher bands, rather than considered a last resort.
---

We're getting far afield from the original question (whatever it was - I
couldn't figure out if it was about fire danger or something else) but
you've hit on a point of long-standing curiosity for me: What *is* the
attenuation provided by various structures if the antenna is in the loft
(attic) space?

I've lived where outside antennas were prohibited and had considerable
success with a 60 foot doublet fed with open wire line in the attic of a
wood frame building with shingle roof. It was a two story building, so it
was about 25 feet above the ground, and the building was on a small hill. 

When cdx were decent I literally "worked the world" using 10 watts on 20
Meter CW and got out all over north America on 40 CW.

I always assumed the biggest issues with an attic antenna were generally low
height in most buildings (under 15 feet for a single story structure) and
coupling issues to house wiring, plumbing, etc. After all, outside antennas
work well even when surrounded by or running through trees, and trees
arguably carry a lot more moisture than the dry wood of a frame building. 

But I've never seen any studies about the losses to HF RF through various
construction materials. Has anyone done any studies along these lines to
collect actual data? Something like measuring the field strength from a
small signal source over a fixed distance with it in open air or in a
container of various construction materials (concrete, wood, brick, etc.)? 

Ron AC7AC 

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Re: [Elecraft] K3 Assembly Question

[Ron D'Eau Claire]

Refer to page 67 of the Rev G or H manual for more information about where
the wattmeter or sig generator are used. 

They are entirely optional, as the text explains, but some builders want to
perform the calibration procedures requiring them anyway. There are a
variety of ways to measure 1 MW other than an actual power meter. A good
oscilloscope is one option. 

As an aside, the K3 with the KXV3 module providing milliwatt level output
makes a nice signal generator for bench testing :-)

Ron AC7AC

-Original Message-

I'm considering ordering a K3 kit soon.  I wonder how 'optional' these 
items listed in the assembly manual really are:

Optional Equipment:
1.  RF Power Meter with accurate readout from 1 mW to 5 watts, minimum.
2.  Signal generator with calibrated 50 uV output at 20 or 40 meters. 

I have a Bird 43 wattmeter, but don't know of any element in the HF 
range that would read 1 mW.

--Dave, W8OV

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Re: [Elecraft] K3 Assembly Question

[Mike Harris]

Serious QRO.

| perform the calibration procedures requiring them anyway. There are a
| variety of ways to measure 1 MW other than an actual power meter. A good
| oscilloscope is one option.

Regards,

Mike VP8NO 

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[Elecraft] [K3] New 2M add-on

[Larry Christensen]

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Re: [Elecraft] K3 Assembly Question

[Ron D'Eau Claire]

A very big oscilloscope attenuator for a megawatt, I agree ;-)

Ron 

-Original Message-


Serious QRO.

| perform the calibration procedures requiring them anyway. There are a
| variety of ways to measure 1 MW other than an actual power meter. A good
| oscilloscope is one option.

Regards,

Mike VP8NO 

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Re: [Elecraft] K3 Assembly Question

[Dave, W8OV]

Dave, W8OV wrote:
> I'm considering ordering a K3 kit soon.  I wonder how 'optional' these 
> items listed in the assembly manual really are:
> 
> Optional Equipment:
> 1.  RF Power Meter with accurate readout from 1 mW to 5 watts, minimum.
> 2.  Signal generator with calibrated 50 uV output at 20 or 40 meters. 

Thanks to all who have responded in such a helpful manner.

73 de Dave, W8OV
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Re: [Elecraft] K144XV

[Graham Kimbell (G3TCT)]

John
USPO priority mail looks a lot cheaper?

Graham
- Original Message - 
From: "John Lemay" 
To: 
Sent: Wednesday, May 27, 2009 8:43 AM
Subject: [Elecraft] K144XV


> Hi all
> 
> I'm really keen on the 2m transverter module, but having gone through the
> motions of completing the order form, it looks as though the cheapest
> carrier will be UPS Worldwide at $109.20.

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Re: [Elecraft] KXV3A upgrade - shipping weight

[Johnny Siu]

Hello Group,
 
I find the shipping weight of KXV3A is 1.5 lb.  I trust there must be some 
wrong calculation.  I suppose the tiny KXV3A can be shipped in a bubble 
envelope, can't it?  The shipping cost of the KXV3A upgrade is in fact the same 
as the upgrade itself.
 
In the past, I picked up the wrong shipping weight calculation of the mini 
modules and advised elecraft accordingly.
 
73
 
Johnny VR2XMC

--- 2009年5月27日 星期三，Graham Kimbell (G3TCT)  寫道﹕


寄件人: Graham Kimbell (G3TCT) 
主題: Re: [Elecraft] K144XV
收件人: "Elecraft reflector" , "John Lemay" 

日期: 2009年5月27日,星期三,下午11:38


John
USPO priority mail looks a lot cheaper?

Graham
- Original Message - 
From: "John Lemay" 
To: 
Sent: Wednesday, May 27, 2009 8:43 AM
Subject: [Elecraft] K144XV


> Hi all
> 
> I'm really keen on the 2m transverter module, but having gone through the
> motions of completing the order form, it looks as though the cheapest
> carrier will be UPS Worldwide at $109.20.

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  Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多!
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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[wayne burdick]

Rajiv Dewan, N2RD wrote:

> What I do not know is if K144XV allows 2m reception on the subreceiver.

We have made provisions for this on an optional daughter board that 
plugs into the main K144XV module. This option board will have at least 
three features: (1) sub receiver AUX RF patch (to let the sub RX 
receive on 2 m even if the main RX is on a different band); (2) 144 MHz 
low-level I/O (for higher-band transverters); (3) a PLL to lock the 
K144XV's crystal oscillator to the K3's 49.38 MHz reference oscillator.

This option will be available somewhat later than the K144XV itself, 
and the price has not yet been set. It will be very easy to install.

73,
Wayne
N6KR


---

http://www.elecraft.com

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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[wayne burdick]

Svend Spanget wrote:

> Are there any benefits at all with K144XV-F (besides not having an 
> extra box on the desk)?

- coverage of entire 2-m band (144-148 MHz, U.S.)

- diode-switched T/R (no relays)

- full integration with K3 (including power-out bar graph, status 
monitoring, etc.)

- future option module provides phase locking of crystal osc. to
   K3's internal reference; sub-receiver access to 2 m; 144-MHz 
low-level I/O

- simplified station wiring (RF, DC, control)

The K144XV increasing K3 band coverage to 160-2 m, which will be great 
for those with limited space or the need for 2 m for 
portable/mobile/marine operation. But it isn't for everyone, of course. 
Some 2-m ops will prefer the slightly better NF and higher power output 
of an external transverter.

73,
Wayne
N6KR

---

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[Elecraft] Successfully using a micro fan to keep K2 cool

[dw]

I happened to have one of these in my parts bins and it seems to work
just fine.
It sets on top of the unit in right-rear, on the heatsync.
I have it limited by a 47ohm resister soldered to the switched DC inside
the unit.
For standard qso usage, it keeps the heatsync just slightly warm to the
touch.
And its so tiny it has very little cosmetic effect on the unit.

I would suggest Elecraft manufacture this as an accessory, providing a
clamp assembly.

12VDC Micro Fan 
Model: 273-240  |  Catalog #: 273-240 
1.6" square, .39" depth



-- 
 bw...@fastmail.net

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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[Ken Kopp]

I've mounted several sizes of "muffin" fans to rubber
pipe caps.  They're handy for cooling projects and
the rather soft rubber caps won't scratch finishes.

73! Ken Kopp - K0PP
  elecradftcov...@rfwave.net
  http://tinyurl.com/7lm3m5
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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[W B Reese]

How noisy is it ?

One idea I've had for a long time is to remove the elecraft fan on 
the rear of K2 and find a hose of the proper diameter, somehow 
mounting it in a semi-permanent fashon.  at the other end of the 
hose, a box with a big fan that can really blast some serious air 
through the K2.  Put the box on the floor or in the next room so you 
don't have to hear it.

Any thoughts ?

TR, WB6TMY K2 S/N 838

At 09:24 AM 5/27/2009 -0700, you wrote:
>I happened to have one of these in my parts bins and it seems to work
>just fine.
>It sets on top of the unit in right-rear, on the heatsync.
>I have it limited by a 47ohm resister soldered to the switched DC inside
>the unit.
>For standard qso usage, it keeps the heatsync just slightly warm to the
>touch.
>And its so tiny it has very little cosmetic effect on the unit.
>
>I would suggest Elecraft manufacture this as an accessory, providing a
>clamp assembly.
>
>12VDC Micro Fan
>Model: 273-240  |  Catalog #: 273-240
>1.6" square, .39" depth

Tel: . . . 707-832-4304 

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[Elecraft] Spectrogram 16 download

[Kevin Rock]

   For some silly reason I was digging around on my network and found an old 
version of Spectrogram.  Well, the unlock password did not work.  Even though I 
had purchased it and received the password it kept telling me I had gone beyond 
the ten day window of opportunity.  Oh well, but I kept looking and found the 
web site for Spectrogram.  It appears he is ceasing operations at the end of 
May.  The good news is there is a free download available for Spectrogram 16.  
I grabbed it, installed it, and have played with it some.  Looks like it will 
work for all those bird songs I am hearing as the critters return with the 
improving weather.  As an aside (like there aren't enough of these already) 
Spectrogram was developed to analyze bird songs but it has been used by those 
of us on this list who own K2s to adjust our rigs.  Don Wilhelm and Tom Hammond 
both have some notes on their respective sites for its use in this capacity.  
All that being said if you want a copy of Spectrogram 
 16 get it now before the site is pulled down.  
   73,
  Kevin.

www.visualizationsoftware.com/gram.html

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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[Ron D'Eau Claire]

Good grief! How cool do you want to keep the K2? 

Several years ago I ran some tests for one of the engineers to check the
K2's frequency stability vs. temperature. Several testers and I cycled the
K2's internal temperature by hooking on a suitable dummy load and
transmitting for extended periods so the 100 watt PA would cook the insides.
(Some actually did the "brick on the key" routine from what I recall.) 

Mine was heated enough I couldn't keep my hand on the PA heat sink and the
internal air temperature was well above 120F. That was done dozens of times
with no deleterious effects on the K2 or the amp, then or since.

I have used a 4" square muffin fan sitting in rubber feet on top of the K2
running at a slow speed, not to keep it any cooler but to avoid the noisy
little fan on the back from running. 

Ron AC7AC



-Original Message-
How noisy is it ?

One idea I've had for a long time is to remove the elecraft fan on 
the rear of K2 and find a hose of the proper diameter, somehow 
mounting it in a semi-permanent fashon.  at the other end of the 
hose, a box with a big fan that can really blast some serious air 
through the K2.  Put the box on the floor or in the next room so you 
don't have to hear it.

Any thoughts ?

TR, WB6TMY K2 S/N 838


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[Elecraft] Elecraft in Antarctica

[Mike Clarke]

Hi all,

I'm quite new to ham radio, and have only gained my UK Full license
relatively recently.  I'm enjoying exploring various different aspects
of the hobby, and decided to try my hand at building a kit.

Following strong recommendations from other local amateurs, I purchased a
K1.  The kit itself is still 'in progress', but I'm enjoying the process
enormously, and, with a bit of help from this list (and especially Don,
W3FPR), it's on track to be finished soon.

However, despite the fact that the kit isn't complete yet, it's already
been instrumental in getting me my dream new job!  I took it with me to
a recent interview with the British Antarctic Survey; being able to
demonstrate practical work I had done, and talk about experiences
building and trouble-shooting the kit was very valuable.  Thanks to
that K1, I'll be off to spend 18 months in the Antarctic, and, although
the K1 itself won't be coming along for the ride, K3#2847 _will_.

So thank you Elecraft for such great kits and superb instructions!  All
I need to do now is get saving for the extras I need (ok, ok, _want_) to
take along.

On to the question of the post: does anyone have any experience running
K3s at lower ambient temperatures?  How low can they safely go?  Any
other 'gotchas' to watch out for with low temperature operating?

Thanks,

-- 
Mike, M0PRL, hoping the W2 and (oh! please!) the fabled pan adaptor
actually ship before I leave.
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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[W B Reese]

Well, I like mine cool.  In my experience, cool equipment has fewer 
breakdowns and lasts longer.  Not only that, it has less drift.

There is a menu in K2 to calibrate the temperature probe that 
controls the fan.  I have mine set to a much higher temperature than 
what it actually is.  This makes the fan come on at a lower 
temperature.  I just put up with the noise.

My K2/100 drifts about 70 Hz from a cold turn on in the mornings to 
"ambiant."  If I begin rag chewing and really pound away it will 
drift another 40 Hz.  I live with this every day, and although it 
gives me something to do while rag chewing, but I'd be happy to 
improve the temperature stability further and reduce it a bit more.

So, Ron,

It got hot enough you couldn't put your hand on it...  How far did it drift ?

TR, WB6TMT K2 S/N 838

At 10:24 AM 5/27/2009 -0700, you wrote:
>Good grief! How cool do you want to keep the K2?
>
>Several years ago I ran some tests for one of the engineers to check the
>K2's frequency stability vs. temperature. Several testers and I cycled the
>K2's internal temperature by hooking on a suitable dummy load and
>transmitting for extended periods so the 100 watt PA would cook the insides.
>(Some actually did the "brick on the key" routine from what I recall.)
>
>Mine was heated enough I couldn't keep my hand on the PA heat sink and the
>internal air temperature was well above 120F. That was done dozens of times
>with no deleterious effects on the K2 or the amp, then or since.
>
>I have used a 4" square muffin fan sitting in rubber feet on top of the K2
>running at a slow speed, not to keep it any cooler but to avoid the noisy
>little fan on the back from running.
>
>Ron AC7AC
>
>
>
>-Original Message-
>How noisy is it ?
>
>One idea I've had for a long time is to remove the elecraft fan on
>the rear of K2 and find a hose of the proper diameter, somehow
>mounting it in a semi-permanent fashon.  at the other end of the
>hose, a box with a big fan that can really blast some serious air
>through the K2.  Put the box on the floor or in the next room so you
>don't have to hear it.
>
>Any thoughts ?
>
>TR, WB6TMY K2 S/N 838
>
>
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>
>No virus found in this incoming message.
>Checked by AVG - www.avg.com
>Version: 8.5.339 / Virus Database: 270.12.42/2137 - Release Date: 
>05/27/09 07:50:00

Tel: . . . 707-832-4304 

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Re: [Elecraft] Elecraft in Antarctica

[Paul Fletcher]

Well done Mike! I'm only ever so slightly envious (understatement if ever
there was one). I read on the web somewhere that the first thing to cause
problems is LCD displays (assuming your battery hasn't died first) but this
should only be a problem if you are operating in the open. I guess Wayne or
Eric are best placed to comment about design parameters.

There are folks with experience of operating at sub-zero temps out there but
not sure if they used Elecraft kit. If you are in contact with other members
of the survey they might be able to help with experiences using ham gear in
those conditions.

Very best wishes and have a great time
Paul M1PAF
-- 
View this message in context: 
http://n2.nabble.com/Elecraft-in-Antarctica-tp2982647p2982718.html
Sent from the Elecraft mailing list archive at Nabble.com.

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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[David Wilburn]

With so many high volume low speed (and thus low noise) fans out 
there,  I would have a hard time justifying doing more than setting 
one up on the heat sink on top (for 100w version).  But operating 
styles and locations vary, so YMMV.

73

Dave Wilburn
NM4M

W B Reese wrote:
> How noisy is it ?
> 
> One idea I've had for a long time is to remove the elecraft fan on 
> the rear of K2 and find a hose of the proper diameter, somehow 
> mounting it in a semi-permanent fashon.  at the other end of the 
> hose, a box with a big fan that can really blast some serious air 
> through the K2.  Put the box on the floor or in the next room so you 
> don't have to hear it.
> 
> Any thoughts ?
> 
> TR, WB6TMY K2 S/N 838
> 
> At 09:24 AM 5/27/2009 -0700, you wrote:
>> I happened to have one of these in my parts bins and it seems to work
>> just fine.
>> It sets on top of the unit in right-rear, on the heatsync.
>> I have it limited by a 47ohm resister soldered to the switched DC inside
>> the unit.
>> For standard qso usage, it keeps the heatsync just slightly warm to the
>> touch.
>> And its so tiny it has very little cosmetic effect on the unit.
>>
>> I would suggest Elecraft manufacture this as an accessory, providing a
>> clamp assembly.
>>
>> 12VDC Micro Fan
>> Model: 273-240  |  Catalog #: 273-240
>> 1.6" square, .39" depth
> 
> Tel: . . . 707-832-4304 
> 
> __
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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[Phil Kane]

On 5/27/2009 10:24 AM, Ron D'Eau Claire wrote:

> I have used a 4" square muffin fan sitting in rubber feet on top
> of the K2 running at a slow speed, not to keep it any cooler but
> to avoid the noisy little fan on the back from running.

  How are you feeding power to the fan?  I have one on top, but
  it runs from a separate connection to the line that feeds the
  K2, so it runs even when the front panel switch is turned
  "off".  I have to open the breaker that feeds the K2, the
  KAT100, and the Rigrunner Plus as well as the fan to stop the
  fan if I am not running the radio.  I would really like to have
  the fun turned on and off with the K2.

--  73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

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Re: [Elecraft] K3 VFO Tuning Rates (alternative: via FREQ ENT)

[Merv Schweigert]

As usual it seems the thread has mutated into different conceptions of what
is going on.   Ballistic tuning is when the knob is turned faster the 
freq moves
faster, 
I had a FT-847 and the tuning on it was "jog shuttle" an extra ring 
around the
tuning knob that would move freq very fast depending on how far the ring
was moved.  Was a bear to get used to.   The ballistic is much 
different, there
is no learning curve and works well,  you dont even know its there 
unless you
spin the dial fast. 
It would be like a no hands rate button.   I for one vote for it. 
Merv KH7C
> That would also "drive me wild", but then I would not have to use it 
> unless I selected it explicitly, so it is quite palatable to me.  
> Remember the "KISS" principle - I object to my radio doing "magic 
> things" for me.
>
> 73,
> Don W3FPR
>
> wayne burdick wrote:
>   
>> One idea already on the list is to have the VFO A and/or VFO B knobs be 
>> "live" after you tap FREQ ENT, so that instead of entering a numeric 
>> frequency, you could select the frequency in 1 MHz (VFO A) or 100 kHz 
>> (VFO B) steps. Tap FREQ ENT again to return to normal tuning.
>>
>> Wayne
>> N6KR
>>
>> On May 26, 2009, at 5:30 PM, Ken Kopp wrote:
>>
>>   
>> 
>>> A "ballistic" tuning rate on my K3 would be below the
>>> bottom of my wish list.  (:-))
>>>
>>> It's faster to use the FREQ ENT method, if at all.
>>>
>>> 73! Ken Kopp - K0PP
>>>  elecraftcov...@rfwave.net
>>>  http://tinyurl.com/7lm3m5
>>>
>>>
>>>
>>> 
>>>   
>> ---
>>
>> http://www.elecraft.com
>>
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>>
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com 
>> Version: 8.5.339 / Virus Database: 270.12.40/2135 - Release Date: 05/26/09 
>> 08:53:00
>>
>>   
>> 
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>   

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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[Ron D'Eau Claire]

My tests were done as part of the work John, KI6WX, did in developing and
testing the thermister frequency compensator that is now a part of the K2
design. That was back in 2002. 

As you know, the drift is worse on higher frequencies, and it depends upon
the stability of both the BFO and VFO variable crystal oscillators. My K2
was pretty typical of the day. On 15 meters I'd expect to see about 150 Hz
drift just receiving for 30 minutes from a "cold start". Normal transmitting
might pushed the drift to 210 Hz.

After installing the temperature compensator, the worst case situation,
running the internal air temp from 70F to 120F (which made the heat sink too
hot to leave my hand on) resulted in a worst band drift of 50 Hz and less
than 20 Hz on most bands. It's much lower than that in normal use. Even
though I'm a long-winded CW rag chewer the temperature never approaches what
it was while testing the compensator. 

The temp compensation circuit became part of the production units at about
S/N 3446. If you have an earlier unmodified K2 this would be a worthwhile
change. IIRC it also included a change to a NPO cap in the BFO circuit to
improve that oscillator's stability as well. 

You can further "tweak" the compensation circuit by changing the value of Ra
in the circuit. That's the 27K resistor in series with the input to the op
amp in the compensator. Values from 15k to 56k can be used to adjust the
compensation further. 

Ron AC7AC 


-Original Message-
Subject: Re: [Elecraft] Successfully using a micro fan to keep K2 cool

Well, I like mine cool.  In my experience, cool equipment has fewer 
breakdowns and lasts longer.  Not only that, it has less drift.

There is a menu in K2 to calibrate the temperature probe that 
controls the fan.  I have mine set to a much higher temperature than 
what it actually is.  This makes the fan come on at a lower 
temperature.  I just put up with the noise.

My K2/100 drifts about 70 Hz from a cold turn on in the mornings to 
"ambiant."  If I begin rag chewing and really pound away it will 
drift another 40 Hz.  I live with this every day, and although it 
gives me something to do while rag chewing, but I'd be happy to 
improve the temperature stability further and reduce it a bit more.

So, Ron,

It got hot enough you couldn't put your hand on it...  How far did it drift
?

TR, WB6TMT K2 S/N 838


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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[Ron D'Eau Claire]

Mine is connected directly to the power supply too, Phil, but I switch off
the supplies when I leave the shack, so it's off when the rigs are shut
down.  

Ron AC7AC

-Original Message-

On 5/27/2009 10:24 AM, Ron D'Eau Claire wrote:

> I have used a 4" square muffin fan sitting in rubber feet on top
> of the K2 running at a slow speed, not to keep it any cooler but
> to avoid the noisy little fan on the back from running.

  How are you feeding power to the fan?  I have one on top, but
  it runs from a separate connection to the line that feeds the
  K2, so it runs even when the front panel switch is turned
  "off".  I have to open the breaker that feeds the K2, the
  KAT100, and the Rigrunner Plus as well as the fan to stop the
  fan if I am not running the radio.  I would really like to have
  the fun turned on and off with the K2.

--  73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[Don Ehrlich]

This has been suggested many times by others.. now it is my turn to repeat 
it I guess:

I mounted a 12 volt  4 inch muffin fan in a simple enclosure and placed it 
on top of my K2 blowing downward.  I put a suitable resistor in series with 
the 12 volt supply so that the fan turned slowly and made no noise at all. 
The muffin fan ran all of the time and the little microfan in the K2 
(almost) never came on while running cw or ssb.

Don K7FJ


 > How noisy is it ?
>
> One idea I've had for a long time is to remove the elecraft fan on
> the rear of K2 and find a hose of the proper diameter, somehow
> mounting it in a semi-permanent fashon.  at the other end of the
> hose, a box with a big fan that can really blast some serious air
> through the K2.  Put the box on the floor or in the next room so you
> don't have to hear it.
>
> Any thoughts ?
> 
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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[Don Wilhelm]

Phil,

Solder some wires to the terminals of D12 inside the K2 (the cathode is 
positive 12 volts and turns off with the K2 switch).  Make a small notch 
in the rear panel above the coaxial power jack sufficiently large to run 
the wires through would be my preferred routing for the wire, but make 
your own choices on the routing..

73,
Don W3FPR

Phil Kane wrote:
> On 5/27/2009 10:24 AM, Ron D'Eau Claire wrote:
>
>   
>> I have used a 4" square muffin fan sitting in rubber feet on top
>> of the K2 running at a slow speed, not to keep it any cooler but
>> to avoid the noisy little fan on the back from running.
>> 
>
>   How are you feeding power to the fan?  I have one on top, but
>   it runs from a separate connection to the line that feeds the
>   K2, so it runs even when the front panel switch is turned
>   "off".  I have to open the breaker that feeds the K2, the
>   KAT100, and the Rigrunner Plus as well as the fan to stop the
>   fan if I am not running the radio.  I would really like to have
>   the fun turned on and off with the K2.
>
> --  73 de K2ASP - Phil Kane
> Elecraft K2/100   s/n 5402
>   
>
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[Elecraft] KXV3A/KXV3 mods

[Giuliano]

I am to order new*  K144XV-K internal  
 transverter.*
Question is:
it is possible to use the standard KXV3 or modify it myself  ?
What are the differences?
This because cost to return KXV3  from Italy  is very  high 
73
Giuliano I0CG
ITALY
K3-10  #1814
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Re: [Elecraft] KXV3A/KXV3 mods

[Lyle Johnson]

> I am to order new*  K144XV-K internal  
>  transverter.*
> Question is:
> it is possible to use the standard KXV3 or modify it myself  ?

It would be pretty difficult.  You'd need to add a DPDT relay, two TMP 
jacks and several other components to allow multiplexing certain control 
signals onto the internal jacks.

73,

Lyle KK7P

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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[Greg - AB7R]

If someone is looking for something with a bracket, the fan option for the TT 
Orion 
actually fits very nicely onto the K2/100 heatsink.  I used it often especially 
when running RTTY.

-
73,
Greg - AB7R
Whidbey Island WA
NA-065


On Wed May 27 13:05 , "Ron D"Eau Claire"  sent:

>Mine is connected directly to the power supply too, Phil, but I switch off
>the supplies when I leave the shack, so it's off when the rigs are shut
>down.  
>
>Ron AC7AC
>
>-Original Message-
>
>On 5/27/2009 10:24 AM, Ron D'Eau Claire wrote:
>
>> I have used a 4" square muffin fan sitting in rubber feet on top
>> of the K2 running at a slow speed, not to keep it any cooler but
>> to avoid the noisy little fan on the back from running.
>
>  How are you feeding power to the fan?  I have one on top, but
>  it runs from a separate connection to the line that feeds the
>  K2, so it runs even when the front panel switch is turned
>  "off".  I have to open the breaker that feeds the K2, the
>  KAT100, and the Rigrunner Plus as well as the fan to stop the
>  fan if I am not running the radio.  I would really like to have
>  the fun turned on and off with the K2.
>
>--  73 de K2ASP - Phil Kane
>Elecraft K2/100   s/n 5402
>
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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[Don Wilhelm]

Don,

Not to argue with your success, it is generally more efficient to use 
the fan to direct air AWAY from the surface to be cooled rather than 
toward it.  The heat of the fan energy is not added to the air that is 
doing the cooling, but then those muffin fans do not add very much heat 
energy, so it may be a moot point for the KPA100 heat sink.

73,
Don W3FPR

Don Ehrlich wrote:
> This has been suggested many times by others.. now it is my turn to repeat 
> it I guess:
>
> I mounted a 12 volt  4 inch muffin fan in a simple enclosure and placed it 
> on top of my K2 blowing downward.  I put a suitable resistor in series with 
> the 12 volt supply so that the fan turned slowly and made no noise at all. 
> The muffin fan ran all of the time and the little microfan in the K2 
> (almost) never came on while running cw or ssb.
>
> Don K7FJ
>   
>
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Re: [Elecraft] K3 VFO Tuning Rates (alternative: via FREQ ENT)

[David Ferrington, M0XDF]

make that two
--  
73 de M0XDF

On 27 May 2009, at 20:56, Merv Schweigert wrote:

> As usual it seems the thread has mutated into different conceptions  
> of what
> is going on.   Ballistic tuning is when the knob is turned faster the
> freq moves
> faster,
> I had a FT-847 and the tuning on it was "jog shuttle" an extra ring
> around the
> tuning knob that would move freq very fast depending on how far the  
> ring
> was moved.  Was a bear to get used to.   The ballistic is much
> different, there
> is no learning curve and works well,  you dont even know its there
> unless you
> spin the dial fast.
> It would be like a no hands rate button.   I for one vote for it.
> Merv KH7C
>> That would also "drive me wild", but then I would not have to use it
>> unless I selected it explicitly, so it is quite palatable to me.
>> Remember the "KISS" principle - I object to my radio doing "magic
>> things" for me.
>>
>> 73,
>> Don W3FPR
>>
>> wayne burdick wrote:
>>
>>> One idea already on the list is to have the VFO A and/or VFO B  
>>> knobs be
>>> "live" after you tap FREQ ENT, so that instead of entering a numeric
>>> frequency, you could select the frequency in 1 MHz (VFO A) or 100  
>>> kHz
>>> (VFO B) steps. Tap FREQ ENT again to return to normal tuning.
>>>
>>> Wayne
>>> N6KR
>>>
>>> On May 26, 2009, at 5:30 PM, Ken Kopp wrote:
>>>
>>>
>>>
 A "ballistic" tuning rate on my K3 would be below the
 bottom of my wish list.  (:-))

 It's faster to use the FREQ ENT method, if at all.

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





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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[John Frerichs]

The order form states for the K144XV-K:  "IMPORTANT: Check one: __ For a K3/10  
 __ For a K3/100"

1. If I order the K144XV-K for the K3/10 and later upgrade to the K3/100 (by 
installing KPA3), what will this affect?  Nothing seems to be mentioned on the 
order form nor the Press Release PDF as to *why* it's important.

2. I'm glad I didn't yet purchase the "old" KXV3 interface before the KXV3A was 
"released" for the K144XV-K option.  I may have just saved myself $30, plus the 
cost of shipping the KXV3 back to Elecraft.  Timing is everything!

Thanks,

John
N6VCW
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[Elecraft] Successfully using a micro fan to keep K2 cool

[Roy Morris]

I also was a field tester on frequency stability vs. temperature tests.  During 
one of these tests I set my K2 to 20 watts and keyed it for one continuous 
hour.  The heat sink was too hot to put my hand on it, but the over-heat 
message did not appear.  The K2 final transistors are very rugged and can stand 
up to very high temperatures.  My K2 is still going strong like the Eveready 
bunny.  Ron, AC7AC is right.  You don't need to be concerned about the heat 
generated during the everyday QSOs.  In a word the K2 is a brute when it comes 
to thermal properties.  Roy Morris  W4WFB
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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[Iain MacDonnell - N6ML]

John Frerichs wrote:
> The order form states for the K144XV-K:  "IMPORTANT: Check one: __ For a 
> K3/10   __ For a K3/100"
> 
> 1. If I order the K144XV-K for the K3/10 and later upgrade to the K3/100 (by 
> installing KPA3), what will this affect?  Nothing seems to be mentioned on 
> the order form nor the Press Release PDF as to *why* it's important.

I was mentioned in Eric's announcement yesterday - the antenna jack for
the K144XV is mounted on a replacement rear panel - if you have the
KPA3, you get a new fan panel. If not, you get a new "blank" panel.

I wonder if new KPA3's will be shipping with the new-style fan-panel
by default. I'm sure you could at least request the right panel if/when
you order the KPA3.

 ~Iain / N6ML

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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[Lyle Johnson]

> The order form states for the K144XV-K:  "IMPORTANT: Check one: __ For a 
> K3/10   __ For a K3/100"
> Nothing seems to be mentioned on the order form nor the Press Release PDF as 
> to *why* it's important.

The K144XV adds a BNC connector for the 2 meter antenna.  10 watt and 
1200 watt K3s have a different rear panel plate.

73,

Lyle KK7P

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[Elecraft] UPGRADE VERSION 3.11

[py5eg]

Hi Folks:
 
During a upgrade procedure of one of my K3 to version 3.11 a malfunction has 
occurred
 
1) A message asking to turn the K3 of and on again to continue the upgrade
2) I tried to turn of and didn´t succeed 
3) I turned the power supply off and turned on again,and turned the K3 on
4) The process crushed and with the display was off  with  "MCU LD"
5) The TX led blinking and no way to turn off
 
What should I do?
 
Atilano
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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[Ron D'Eau Claire]

It probably doesn't make much difference, but I have the fan pushing air
upward so it doesn't "fight" the air coming out of the slots at the forward
end of the heat sink driven by the small fan when it is running. 

The fan draws air in along the fins from the sides and expels it upward. I
added a 100 ohm resistor in series with the power to cut the speed of mine
to reduce the noise in a quiet room. 

Ron AC7AC

-Original Message-
This has been suggested many times by others.. now it is my turn to repeat 
it I guess:

I mounted a 12 volt  4 inch muffin fan in a simple enclosure and placed it 
on top of my K2 blowing downward.  I put a suitable resistor in series with 
the 12 volt supply so that the fan turned slowly and made no noise at all. 
The muffin fan ran all of the time and the little microfan in the K2 
(almost) never came on while running cw or ssb.

Don K7FJ
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Re: [Elecraft] K3 VFO Tuning Rates (alternative: via FREQ ENT)

[Craig D. Smith]

<> The ballistic is much different, there
<> is no learning curve and works well, you don't even know its there
<> unless you spin the dial fast.
<> It would be like a no hands rate button.   I for one vote for it.

I like it as well on my ICOM rig, and would be in favor of including it on
the K3.  I assume that it could be a firmware option so that those who are
bothered by the concept aren't by the reality.
In the meantime, I enjoy fast QSYs around each band by using the RIT knob
option.

73   Craig  AC0DS


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Re: [Elecraft] K3 VFO Tuning Rates

[Bill NY9H]

2 votes for a good ballistic tuning VFO , ( defeatable)


icom does do it very well on the  756 & 7800


bill  ny9h

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Re: [Elecraft] K3 VFO Tuning Rates (alternative: via FREQ ENT)

[Andrew Faber]

I agree with Merv's analysis.  The 756 Pros have this variable rate tuning 
and it is very convenient and unobtrusive.
  73, andy, ae6y
- Original Message - 
From: "Merv Schweigert" 
Cc: 
Sent: Wednesday, May 27, 2009 12:56 PM
Subject: Re: [Elecraft] K3 VFO Tuning Rates (alternative: via FREQ ENT)


> As usual it seems the thread has mutated into different conceptions of 
> what
> is going on.   Ballistic tuning is when the knob is turned faster the
> freq moves
> faster,
> I had a FT-847 and the tuning on it was "jog shuttle" an extra ring
> around the
> tuning knob that would move freq very fast depending on how far the ring
> was moved.  Was a bear to get used to.   The ballistic is much
> different, there
> is no learning curve and works well,  you dont even know its there
> unless you
> spin the dial fast.
> It would be like a no hands rate button.   I for one vote for it.
> Merv KH7C
>> That would also "drive me wild", but then I would not have to use it
>> unless I selected it explicitly, so it is quite palatable to me.
>> Remember the "KISS" principle - I object to my radio doing "magic
>> things" for me.
>>
>> 73,
>> Don W3FPR
>>
>> wayne burdick wrote:
>>
>>> One idea already on the list is to have the VFO A and/or VFO B knobs be
>>> "live" after you tap FREQ ENT, so that instead of entering a numeric
>>> frequency, you could select the frequency in 1 MHz (VFO A) or 100 kHz
>>> (VFO B) steps. Tap FREQ ENT again to return to normal tuning.
>>>
>>> Wayne
>>> N6KR
>>>
>>> On May 26, 2009, at 5:30 PM, Ken Kopp wrote:
>>>
>>>
>>>
 A "ballistic" tuning rate on my K3 would be below the
 bottom of my wish list.  (:-))

 It's faster to use the FREQ ENT method, if at all.

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





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>>> Checked by AVG - www.avg.com
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>>> 05/26/09 08:53:00
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>>>
>>>
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Re: [Elecraft] K3 VFO Tuning Rates

[Steven . Zabarnick]

On May 26, 2009 Wayne wrote:

-This is referred to as "ballistic" tuning. We experimented with it but
-rejected it when we did the K2 design. I haven't tried it on the K3
-yet, but I've added it to my list.
-
-73,
-Wayne
-N6KR

Back in Jan 2008 there was a discussion of this on the reflector, and on
Jan 17, 2008 Greg wrote:

-A ballistic type of tuning is already on the list.
-
-73
-Greg
-AB7R

Personally I vote yes on ballistic tuning, but I thought it was already on
the list.

Steve N9SZ
Dayton OH

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Re: [Elecraft] Successfully using a micro fan to keep K2 cool

[Phil-W6TQG]

If you want the external fan to run only while transmitting, connect one
side of the fan to power and the other to the PA Key Out connector of
the K2/100. Of course the optimum method depends on the operator.

73 de Phil/W6TQG


> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Kane
> Sent: Wednesday, May 27, 2009 12:51 PM
> To: Ron D'Eau Claire
> Cc: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Successfully using a micro fan to keep K2 cool
> 
> On 5/27/2009 10:24 AM, Ron D'Eau Claire wrote:
> 
> > I have used a 4" square muffin fan sitting in rubber feet on top
> > of the K2 running at a slow speed, not to keep it any cooler but
> > to avoid the noisy little fan on the back from running.
> 
>   How are you feeding power to the fan?  I have one on top, but
>   it runs from a separate connection to the line that feeds the
>   K2, so it runs even when the front panel switch is turned
>   "off".  I have to open the breaker that feeds the K2, the
>   KAT100, and the Rigrunner Plus as well as the fan to stop the
>   fan if I am not running the radio.  I would really like to have
>   the fun turned on and off with the K2.
> 
> --  73 de K2ASP - Phil Kane
> Elecraft K2/100   s/n 5402
> 
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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[Dave Reed]

Can I get one of these "1200 watt" K3s???   ;-)



-Original Message-
From: Lyle Johnson [mailto:k...@wavecable.com] 
Sent: Wednesday, May 27, 2009 1:48 PM
To: John Frerichs
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

The K144XV adds a BNC connector for the 2 meter antenna.  10 watt and 
1200 watt K3s have a different rear panel plate.

73,

Lyle KK7P

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Re: [Elecraft] UPGRADE VERSION 3.11

[Don Wilhelm]

Atilano,

The K3 is waiting for a firmware load - MCU LD plus a blinking TX 
indicator is how that condition is displayed.

I suggest you download the firmware again to assure that you do not have 
a corrupt firmware file on your computer, then run K3 Utility again to 
load the firmware.  Load all the firmware, including the data tables.

73,
Don W3FPR

py5eg wrote:
> Hi Folks:
>  
> During a upgrade procedure of one of my K3 to version 3.11 a malfunction has 
> occurred
>  
> 1) A message asking to turn the K3 of and on again to continue the upgrade
> 2) I tried to turn of and didn´t succeed 
> 3) I turned the power supply off and turned on again,and turned the K3 on
> 4) The process crushed and with the display was off  with  "MCU LD"
> 5) The TX led blinking and no way to turn off
>  
> What should I do?
>  
> Atilano
>   
>
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Re: [Elecraft] K3 VFO Tuning Rates (alternative: via FREQ ENT)

[Phil LaMarche]

Having owned an Icom 756 Pro 3, I loved that feature.  Just put the Ten Tec
rubber over the knob and it is much nicer to use. 

Phil


Philip LaMarche 
LaMarche Enterprises, Inc.
www.instantgourmetspices.com

www.w9dvm.com 
800-395-7795 pin 02 
727-944-3226 
FAX 727-937-8834 
NASFT 30210 

K3  #1605

CCA 98  00827
W9DVM 



-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Craig D. Smith
Sent: Wednesday, May 27, 2009 4:57 PM
To: 'Merv Schweigert'
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 VFO Tuning Rates (alternative: via FREQ ENT)

<> The ballistic is much different, there <> is no learning curve and works
well, you don't even know its there <> unless you spin the dial fast.
<> It would be like a no hands rate button.   I for one vote for it.

I like it as well on my ICOM rig, and would be in favor of including it on
the K3.  I assume that it could be a firmware option so that those who are
bothered by the concept aren't by the reality.
In the meantime, I enjoy fast QSYs around each band by using the RIT knob
option.

73   Craig  AC0DS


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Re: [Elecraft] K3 VFO Tuning Rates

[Barry McWilliams]

I know you don't want to keep a thread going with a "me too", but I'd 
like to enter my vote FOR ballistic tuning as implemented by ICOM.

Thanks, Barry K8LEF
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Re: [Elecraft] K3 VFO Tuning Rates (alternative: via FREQ ENT)

[Rob May]

I loved ballistic tuning on my Icoms, add me to the pro ballistic list.
Rob
NV5E

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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[John Frerichs]

Aha!  That's the missing piece of the puzzle.  Now I understand.  Thanks.

John Frerichs wrote:
> The order form states for the K144XV-K:  "IMPORTANT: Check one: __ For a 
> K3/10  __ For a K3/100"
> 
> 1. If I order the K144XV-K for the K3/10 and later upgrade to the K3/100 (by 
> installing KPA3), what will this affect?  Nothing seems to be mentioned on 
> the order form nor the Press Release PDF as to *why* it's important.

I was mentioned in Eric's announcement yesterday - the antenna jack for
the K144XV is mounted on a replacement rear panel - if you have the
KPA3, you get a new fan panel. If not, you get a new "blank" panel.

I wonder if new KPA3's will be shipping with the new-style fan-panel
by default. I'm sure you could at least request the right panel if/when
you order the KPA3.

    ~Iain / N6ML
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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[Lyle Johnson]

> ...10 watt and 1200 watt K3s have a different rear panel plate.

The 1200 watt hasn't been released yet.  We'll be using a single surface 
mount 2N3906 PNP transistor in a Class I amplifier that will allow the 
K3 to run on a single AA cell for up to 10 days, as long as the transmit 
duty cycle significantly exceeds 101%.  Any less and the battery quickly 
goes flat and the transistor lets its smoke out, which is a one time event.

In the meantime, please use our 100 watt version with its corresponding 
fan panel for your KPA3-equipped K3 and the K144XV.

73,

Lyle KK7P

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Re: [Elecraft] UPGRADE VERSION 3.11

[a yoshida]

Atilano

If you are using USB interface then try legacy COM port.
Some kind of USB interface cause this problem.

73
aki  ja1nlx


py5eg wrote:
> Hi Folks:
>  
> During a upgrade procedure of one of my K3 to version 3.11 a malfunction has 
> occurred
>  
> 1) A message asking to turn the K3 of and on again to continue the upgrade
> 2) I tried to turn of and didn´t succeed 
> 3) I turned the power supply off and turned on again,and turned the K3 on
> 4) The process crushed and with the display was off  with  "MCU LD"
> 5) The TX led blinking and no way to turn off
>  
> What should I do?
>  
> Atilano
> __
> Elecraft mailing list
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>   
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[Elecraft] WTB: KDSP2

[Randy Moore]

Anybody have a KDSP2, either built or unbuilt, that they would part 
with?  Or do a trade for a built and fully functional KAF2?  Please 
reply off list to wrmoore47 at comcast dot net.

73,
Randy, KS4L
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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[Jack Smith]

Lyle:

Does this mean I no longer need the Dewar of liquid helium for cooling?

Jack K8ZOA


Lyle Johnson wrote:
>> ...10 watt and 1200 watt K3s have a different rear panel plate.
>> 
>
> The 1200 watt hasn't been released yet.  We'll be using a single surface 
> mount 2N3906 PNP transistor in a Class I amplifier that will allow the 
> K3 to run on a single AA cell for up to 10 days, as long as the transmit 
> duty cycle significantly exceeds 101%.  Any less and the battery quickly 
> goes flat and the transistor lets its smoke out, which is a one time event.
>
> In the meantime, please use our 100 watt version with its corresponding 
> fan panel for your KPA3-equipped K3 and the K144XV.
>
> 73,
>
> Lyle KK7P
>
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>   
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[Elecraft] RES: UPGRADE VERSION 3.11

[py5eg]

Hi Don
Thanks for your help
I already download the firmware. I try to run the K3 utility but there is no 
access to the upgrade transfer.
The problem now is that the K3 does not turn on again.
When I switch on the LCD has no light and only the message  "MCU LD" and also 
the TX led blinks
 
What can I do?
Thanks in advance
 
Regards
Atilano



De: Don Wilhelm [mailto:w3...@embarqmail.com]
Enviada: qua 27/5/2009 18:49
Para: py5eg
Cc: elecraft@mailman.qth.net
Assunto: Re: [Elecraft] UPGRADE VERSION 3.11



Atilano,

The K3 is waiting for a firmware load - MCU LD plus a blinking TX
indicator is how that condition is displayed.

I suggest you download the firmware again to assure that you do not have
a corrupt firmware file on your computer, then run K3 Utility again to
load the firmware.  Load all the firmware, including the data tables.

73,
Don W3FPR

py5eg wrote:
> Hi Folks:
> 
> During a upgrade procedure of one of my K3 to version 3.11 a malfunction has 
> occurred
> 
> 1) A message asking to turn the K3 of and on again to continue the upgrade
> 2) I tried to turn of and didn´t succeed
> 3) I turned the power supply off and turned on again,and turned the K3 on
> 4) The process crushed and with the display was off  with  "MCU LD"
> 5) The TX led blinking and no way to turn off
> 
> What should I do?
> 
> Atilano
>  
>


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[Elecraft] RES: UPGRADE VERSION 3.11

[py5eg]

Hi aki
I´m using a standard serial port directly connected to the K3.
73
Oms



De: a yoshida [mailto:ayosh...@my.email.ne.jp]
Enviada: qua 27/5/2009 19:41
Para: py5eg
Cc: elecraft@mailman.qth.net
Assunto: Re: [Elecraft] UPGRADE VERSION 3.11



Atilano

If you are using USB interface then try legacy COM port.
Some kind of USB interface cause this problem.

73
aki  ja1nlx


py5eg wrote:
> Hi Folks:
> 
> During a upgrade procedure of one of my K3 to version 3.11 a malfunction has 
> occurred
> 
> 1) A message asking to turn the K3 of and on again to continue the upgrade
> 2) I tried to turn of and didn´t succeed
> 3) I turned the power supply off and turned on again,and turned the K3 on
> 4) The process crushed and with the display was off  with  "MCU LD"
> 5) The TX led blinking and no way to turn off
> 
> What should I do?
> 
> Atilano
> __
> Elecraft mailing list
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>  


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Re: [Elecraft] RES: UPGRADE VERSION 3.11

[Lyle Johnson]

Please open K3 Utility Help -> Troubleshooting -> Forcing the K3 into 
"Firmware Load Required" Mode.  It explains the recovery procedure to 
follow.

73,

Lyle KK7P


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Re: [Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

[Lyle Johnson]

Hello Jack!

> Does this mean I no longer need the Dewar of liquid helium for cooling?

Correct.  Class I is one of those modes where practice is even better 
than theory predicts!

Lyle

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Re: [Elecraft] RES: UPGRADE VERSION 3.11

[Don Wilhelm]

Atilano,

Your K3 *is* powered on, and with the TX light blinking *and* with the 
MCU LD on the LCD, it is waiting for a firmware load.

Follow the steps in the K3 Utility Help menu - "Troubleshooting" - 
"Force K3 into Firmware Load Required" to be certain the K3 is ready for 
the *beginning* of a firmware load.

If you do not have the latest version of K3 Utility, that may be part of 
your problem.  Download the latest version from the Elecraft website.

73,
Don W3FPR

py5eg wrote:
> Hi Don
> Thanks for your help
> I already download the firmware. I try to run the K3 utility but there is no 
> access to the upgrade transfer.
> The problem now is that the K3 does not turn on again.
> When I switch on the LCD has no light and only the message  "MCU LD" and also 
> the TX led blinks
>  
> What can I do?
> Thanks in advance
>  
> Regards
> Atilano
>
> 
>
> De: Don Wilhelm [mailto:w3...@embarqmail.com]
> Enviada: qua 27/5/2009 18:49
> Para: py5eg
> Cc: elecraft@mailman.qth.net
> Assunto: Re: [Elecraft] UPGRADE VERSION 3.11
>
>
>
> Atilano,
>
> The K3 is waiting for a firmware load - MCU LD plus a blinking TX
> indicator is how that condition is displayed.
>
> I suggest you download the firmware again to assure that you do not have
> a corrupt firmware file on your computer, then run K3 Utility again to
> load the firmware.  Load all the firmware, including the data tables.
>
> 73,
> Don W3FPR
>
> py5eg wrote:
>   
>> Hi Folks:
>>
>> During a upgrade procedure of one of my K3 to version 3.11 a malfunction has 
>> occurred
>>
>> 1) A message asking to turn the K3 of and on again to continue the upgrade
>> 2) I tried to turn of and didn´t succeed
>> 3) I turned the power supply off and turned on again,and turned the K3 on
>> 4) The process crushed and with the display was off  with  "MCU LD"
>> 5) The TX led blinking and no way to turn off
>>
>> What should I do?
>>
>> Atilano
>>  
>>
>> 
>
>
> __
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>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com 
> Version: 8.5.339 / Virus Database: 270.12.42/2137 - Release Date: 05/27/09 
> 07:50:00
>
>   
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[Elecraft] K3 xv144 vx432 question

[K8TB]

So if one were to buy an XV144, and a XV432, could they be tied into 
a K3 with a sub receiver so you can operate full duplex, to work the 
satellites? I would just love to see a K3 work with SATPC32 or HRD to do 
the birds.

tom K8TB

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Re: [Elecraft] K3 - 2 meters and MARS/CAP et all

[Bill Miner]

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[Elecraft] RES: RES: UPGRADE VERSION 3.11

[py5eg]

Hi Don
Thanks for the tip
I will do that
Atilano PY5EG



De: Don Wilhelm [mailto:w3...@embarqmail.com]
Enviada: qua 27/5/2009 20:16
Para: py5eg
Cc: elecraft@mailman.qth.net
Assunto: Re: [Elecraft] RES: UPGRADE VERSION 3.11



Atilano,

Your K3 *is* powered on, and with the TX light blinking *and* with the
MCU LD on the LCD, it is waiting for a firmware load.

Follow the steps in the K3 Utility Help menu - "Troubleshooting" -
"Force K3 into Firmware Load Required" to be certain the K3 is ready for
the *beginning* of a firmware load.

If you do not have the latest version of K3 Utility, that may be part of
your problem.  Download the latest version from the Elecraft website.

73,
Don W3FPR

py5eg wrote:
> Hi Don
> Thanks for your help
> I already download the firmware. I try to run the K3 utility but there is no 
> access to the upgrade transfer.
> The problem now is that the K3 does not turn on again.
> When I switch on the LCD has no light and only the message  "MCU LD" and also 
> the TX led blinks
> 
> What can I do?
> Thanks in advance
> 
> Regards
> Atilano
>
> 
>
> De: Don Wilhelm [mailto:w3...@embarqmail.com]
> Enviada: qua 27/5/2009 18:49
> Para: py5eg
> Cc: elecraft@mailman.qth.net
> Assunto: Re: [Elecraft] UPGRADE VERSION 3.11
>
>
>
> Atilano,
>
> The K3 is waiting for a firmware load - MCU LD plus a blinking TX
> indicator is how that condition is displayed.
>
> I suggest you download the firmware again to assure that you do not have
> a corrupt firmware file on your computer, then run K3 Utility again to
> load the firmware.  Load all the firmware, including the data tables.
>
> 73,
> Don W3FPR
>
> py5eg wrote:
>  
>> Hi Folks:
>>
>> During a upgrade procedure of one of my K3 to version 3.11 a malfunction has 
>> occurred
>>
>> 1) A message asking to turn the K3 of and on again to continue the upgrade
>> 2) I tried to turn of and didn´t succeed
>> 3) I turned the power supply off and turned on again,and turned the K3 on
>> 4) The process crushed and with the display was off  with  "MCU LD"
>> 5) The TX led blinking and no way to turn off
>>
>> What should I do?
>>
>> Atilano
>> 
>>
>>
>
>
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> 
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.339 / Virus Database: 270.12.42/2137 - Release Date: 05/27/09 
> 07:50:00
>
>  


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[Elecraft] RES: RES: UPGRADE VERSION 3.11

[py5eg]

Thanks for the tip Lyle
73
Oms PY5EG



De: Lyle Johnson [mailto:k...@wavecable.com]
Enviada: qua 27/5/2009 20:01
Para: py5eg
Cc: d...@w3fpr.com; elecraft@mailman.qth.net
Assunto: Re: [Elecraft] RES: UPGRADE VERSION 3.11



Please open K3 Utility Help -> Troubleshooting -> Forcing the K3 into
"Firmware Load Required" Mode.  It explains the recovery procedure to
follow.

73,

Lyle KK7P




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Re: [Elecraft] K3 - 2 meters and MARS/CAP et all

[ab2tc]

Hi,

Ballistic tuning or not is hardly a determining factor in choosing a radio,
but newer ICOM radios do this very well. My IC-718 which is now relegated to
backup radio (you can hear it at remotehams.com) certainly performs this
very nicely. My vote is for asking for this on the K3, but of course as a
CONFIG option so it won't bother those who don't want it.

Knut - AB2TC


Bill - K6WLM wrote:
> 
>  
> I agree with Don.  KISS!  
>  
> I do not want or need Ballistic tuning.  If I wanted this I would have
> kept my YeaComWood HF radio
>  
> I also do not want a 2 meter receiver with a wide as-a-barn-door front end
> that is an invitation to intermod from every paging transmitter in town.
>  
> Be careful what you ask for!
>  
> 73,
> Bill - K6WLM
> 
> 


-
AB2TC - Knut
-- 
View this message in context: 
http://n2.nabble.com/Re%3A-K3---2-meters-and-MARS-CAP--et-all-tp2984484p2984713.html
Sent from the Elecraft mailing list archive at Nabble.com.

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[Elecraft] K3 SN 3006 can't find any setting to mute the built in speaker

[Jerome S]

Hello all just loving the new K3,  All is well except one thing.   I 
don't seem to have any way to mute the built in speaker.   When I plug 
in phones either in the front or rear the speaker does not mute.   I 
have set the SPKR+PH to  "no"  and SPKRS to "2" 

  I did try FW 3.14 and a reload of the other firmware.

 I have a K3/100 with ATU and one optional filter 400hz.   That is it.  
Like I said everything else working fine just this one issue. 

  73s de Jerome K8LF
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Re: [Elecraft] KXV3A upgrade - shipping weight

[Eric Swartz WA6HHQ - Elecraft]

Hi Johnny,

Actually, that's the same weight as the regular KXV3 has been listed at 
on the web form for a couple of years. I've reduced both to 1 lb, which 
covers the 2 board set and the packaging.

We can't ship any PC boards, and especially the L shaped 2 board set of 
the KXV3a, in a padded envelope. The boards will be easily damaged that 
way. We use a very small cardboard box to ship items like this.

73, Eric

_..._



Johnny Siu wrote:
> Hello Group,
>  
> I find the shipping weight of KXV3A is 1.5 lb.  I trust there must be some 
> wrong calculation.  I suppose the tiny KXV3A can be shipped in a bubble 
> envelope, can't it?  The shipping cost of the KXV3A upgrade is in fact the 
> same as the upgrade itself.
>  
> In the past, I picked up the wrong shipping weight calculation of the mini 
> modules and advised elecraft accordingly.
>  
> 73
>  
> Johnny VR2XMC
>
> --- 2009年5月27日 星期三，Graham Kimbell (G3TCT)  寫道﹕
>
>
> 寄件人: Graham Kimbell (G3TCT) 
> 主題: Re: [Elecraft] K144XV
> 收件人: "Elecraft reflector" , "John Lemay" 
> 
> 日期: 2009年5月27日,星期三,下午11:38
>
>
> John
> USPO priority mail looks a lot cheaper?
>
> Graham
> - Original Message - 
> From: "John Lemay" 
> To: 
> Sent: Wednesday, May 27, 2009 8:43 AM
> Subject: [Elecraft] K144XV
>
>
>   
>> Hi all
>>
>> I'm really keen on the 2m transverter module, but having gone through the
>> motions of completing the order form, it looks as though the cheapest
>> carrier will be UPS Worldwide at $109.20.
>> 
>
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[Elecraft] OT: transistor theory flaw

[Mike Markowski]

I just read this short article and thought many on the list might find  
it interesting:

http://eetimes.com/news/latest/showArticle.jhtml;jsessionid=NQXUQGBIEWGHCQSNDLRSKH0CJUNN2JVN?articleID=217600659

If that URL gets broken, here is a smaller url to the same:

http://tinyurl.com/o4cwpj

73,
Mike ab3ap
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Re: [Elecraft] K3 VFO Tuning Rates

[Guy Olinger, K2AV]

The ballistic tuning methods I have experienced all suffered from jumpy 
rates.  If the tuning rate increase was *a smooth proportional increase* 
with the knob speed increase and the reverse, I think people would love it. 
I would think setting 25 or 50 narrow bands of increase would feel 
proportional.  Two, three, four is jumpy.

73, Guy. 


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Re: [Elecraft] OT: transistor theory flaw

[Ron D'Eau Claire]

Tnx Mike.

It reminds me that vacuum tube theory wasn't understood for many years after
they were developed. Shoot, here in the USA DeForest thought a vacuum tube
*needed* some gas to work properly (and his tubes all had abysmally low gain
as a result). 

If what the learned "experts" knew was right, Marconi would never have been
successful. For decades they had stated that electromagnetic (radio) waves
were useless for communications over any significant distance. 

"What everyone knows", including everything we learned in school, is always
open to question.

Ron AC7AC

-Original Message-
I just read this short article and thought many on the list might find  
it interesting:

http://eetimes.com/news/latest/showArticle.jhtml;jsessionid=NQXUQGBIEWGHCQSN
DLRSKH0CJUNN2JVN?articleID=217600659

If that URL gets broken, here is a smaller url to the same:

http://tinyurl.com/o4cwpj

73,
Mike ab3ap

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