date:20151008

[Elecraft] K3/100 low power setting "gap"

2015-10-08 Thread Felix Hormuth

Dear all,

I have a kind of luxury problem concerning achieving output powers in
FSK between 9.5 and 13W. The setup: a relatively new K3/100 with the last
firmware a recent TX gain calibration. I'm doing a lot of RTTY, mostly in
submode FSK D. Now I hooked up a 1K-FA linear amplifier which has quite some
gain. For serious work in RTTY I'd like to settle around 500W output, i.e.
half max.
The ideal input power for that would be somewhere between 10 and 12W.

Now the problem: for powers below 13W only the LPA is active. The output
power in RTTY goes up to 9.5W but not further, regardless if I set 10, 11,
or 12W. When I increase to 13W the KPA3 kicks in and I get ~13.5W.
So at the moment I cannot reach the 'sweet spot' that would be required
for my desired 500W RTTY.

So the questions are:
- Is the LPA capable at all for CW output of 10-12W or does that only
 apply for PEP in SSB? Are 12W only possible w/o KPA3 installed?
- Has someone an idea for a good workaround?

So far I only came up with the idea to manually mis-"calibrate" the
TX gain in order to reduce the overall output so that I start in
fact with ~10W when I set the output to 13W. That'd limit the maximum
output to below 100W but that would actually fine for me. Without PA
I'll be doing only PSK and JT65, and for that 50W are more than enough.
However, that's a rather nasty solution and if anyone has a better
suggestion I would be happy to hear about it.

vy 73,
Felix DL2FHO





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Re: [Elecraft] PX3 request

2015-10-08 Thread David Anderson

Paul,

Wow! Many thanks, I didn't realise it was simply an oversight, and not some 
basic limitation in the  way the hardware worked.

If you would like me to beta test the new version I would be happy to do so, 
especially as we have good auroral conditions just now and that is where I use 
RIT a lot.

I noticed it when I was working in the aurora on 144 MHz where the Doppler 
shift can mean that callers reply on a different frequency to where I am 
transmitting, and the PX3 is very useful for spotting where they are and of 
course RIT is the best way to tune them in, but the moment I touched the RIT 
the display froze, making it harder to tune them in realtime. 

Incidentally having the PX3 display the bandwidth of the receiver is also very 
useful as I can match the bandwidth of the receiver to the frequency spread of 
the auroral CW signal very easily. 

73

David Anderson GM4JJJ 

> On 7 Oct 2015, at 22:46, Paul Saffren N6HZ  wrote:
> 
> Hi David, 
> 
> Thank you for finding this bug!  I just fixed it and it will be available in
> the next release. 
> 
> Kind regards, 
> 
> Paul
> 
> 
> 
> 
> 
> 
> --
> View this message in context: 
> http://elecraft.365791.n2.nabble.com/PX3-request-tp7608806p7608808.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] Mac & fldigi

2015-10-08 Thread Mike Reublin NF4L

Would anyone using a Mac, iMic and fldigi contact me off list?

73, Mike NF4L


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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread ae4pb

Do I disconnect every cable? No, just Coax at the radio and power strip from
the wall (which disconnects all else). The ONLY connection I don't have the
ability to easily disconnect (which I'm trying to figure out) is station
ground. 

To date I've never lost a piece of my station gear and we get LOTS of
lightning storms. Most of my experience is from the past when I had a tower.

Your experience with Kenwood is one of the MAJOR reasons I went with
Elecraft. Every other manufacturer I've dealt with or heard about only wants
to sell you product with minimal support and seem to go out of their way to
make it difficult for you to get anything under warranty.


Jerry Moore
AE4PB, K3S - S.N. 010324
An Amatuer is - Considerate, Loyal, Progressive, Friendly, Balanced, and
Patriotic.




-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Peter Pauly
Sent: Thursday, October 08, 2015 9:47 AM
To: Elecraft Reflector
Subject: [Elecraft] Unplugging the radio to protect it

I had an experience a couple weeks ago where the USB audio chip in my
Kenwood stopped working. Kenwood service refused to fix the problem under
warranty and blamed me for not unplugging every single cable to the radio
when not in use. I had only disconnected the antenna. Not the power, USB,
key, etc. No other equipment was affected and the USB CAT still worked, so
only one chip stopped working. The Kenwood service center even said they
have had tons of people with the same problem. That experience prompted me
to order a K3S and it's currently in a UPS truck somewhere between CA and
IN.

My questions for you guys and gals are:
Do you disconnect every cable when the radio is not in use?  What are
Elecraft's expectations or recommendations to us?  What chip does the K3S
use for USB audio?  How would Elecraft, the company, have handled this
situation?

Peter
W0VLL
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[Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Peter Pauly

I had an experience a couple weeks ago where the USB audio chip in my
Kenwood stopped working. Kenwood service refused to fix the problem under
warranty and blamed me for not unplugging every single cable to the radio
when not in use. I had only disconnected the antenna. Not the power, USB,
key, etc. No other equipment was affected and the USB CAT still worked, so
only one chip stopped working. The Kenwood service center even said they
have had tons of people with the same problem. That experience prompted me
to order a K3S and it's currently in a UPS truck somewhere between CA and
IN.

My questions for you guys and gals are:
Do you disconnect every cable when the radio is not in use?  What are
Elecraft's expectations or recommendations to us?  What chip does the K3S
use for USB audio?  How would Elecraft, the company, have handled this
situation?

Peter
W0VLL
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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Vic Rosenthal 4X6GP/K2VCO

Very few hams, if any, disconnect EVERY cable from their rig when it is 
not in use. Having said that, it's certainly a good idea to have a 
common grounded entry point with suppression devices for power, antenna, 
phone, cable, etc. so there won't be potential differences between 
equipment in the event of nearby lightning.


But in my opinion, making total disconnection of the equipment a 
condition for warranty repairs is a statement that they don't take the 
warranty seriously.


73,
Vic, 4X6GP/K2VCO
Rehovot, Israel
http://www.qsl.net/k2vco/

On 8 Oct 2015 16:46, Peter Pauly wrote:

I had an experience a couple weeks ago where the USB audio chip in my
Kenwood stopped working. Kenwood service refused to fix the problem under
warranty and blamed me for not unplugging every single cable to the radio
when not in use. I had only disconnected the antenna. Not the power, USB,
key, etc. No other equipment was affected and the USB CAT still worked, so
only one chip stopped working. The Kenwood service center even said they
have had tons of people with the same problem. That experience prompted me
to order a K3S and it's currently in a UPS truck somewhere between CA and
IN.

My questions for you guys and gals are:
Do you disconnect every cable when the radio is not in use?  What are
Elecraft's expectations or recommendations to us?  What chip does the K3S
use for USB audio?  How would Elecraft, the company, have handled this
situation?

Peter
W0VLL

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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Mel Farrer

I would suggest you read the manual and the warranty statement. I don't think 
you will find a disclaimer about removing all cables from the radio when not in 
use.
Mel, K6KBE


  From: Vic Rosenthal 4X6GP/K2VCO 
 To: elecraft@mailman.qth.net 
 Sent: Thursday, October 8, 2015 7:10 AM
 Subject: Re: [Elecraft] Unplugging the radio to protect it
   
Very few hams, if any, disconnect EVERY cable from their rig when it is 
not in use. Having said that, it's certainly a good idea to have a 
common grounded entry point with suppression devices for power, antenna, 
phone, cable, etc. so there won't be potential differences between 
equipment in the event of nearby lightning.

But in my opinion, making total disconnection of the equipment a 
condition for warranty repairs is a statement that they don't take the 
warranty seriously.

73,
Vic, 4X6GP/K2VCO
Rehovot, Israel
http://www.qsl.net/k2vco/

On 8 Oct 2015 16:46, Peter Pauly wrote:
> I had an experience a couple weeks ago where the USB audio chip in my
> Kenwood stopped working. Kenwood service refused to fix the problem under
> warranty and blamed me for not unplugging every single cable to the radio
> when not in use. I had only disconnected the antenna. Not the power, USB,
> key, etc. No other equipment was affected and the USB CAT still worked, so
> only one chip stopped working. The Kenwood service center even said they
> have had tons of people with the same problem. That experience prompted me
> to order a K3S and it's currently in a UPS truck somewhere between CA and
> IN.
>
> My questions for you guys and gals are:
> Do you disconnect every cable when the radio is not in use?  What are
> Elecraft's expectations or recommendations to us?  What chip does the K3S
> use for USB audio?  How would Elecraft, the company, have handled this
> situation?
>
> Peter
> W0VLL
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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Bayard Coolidge, N1HO

No, I don't disconnect *every cable, usually just the antenna coax as itenters 
the shack (which, in NC, is in the basement and a coax feed-throughcomes 
through a concrete block and brick wall, and the disconnect pointis at the 
wall, 4-5m from the equipment). All equipment (except handhelds)is properly 
grounded, as discussed thoroughly on this list recently, and fused.
I'm wondering if this "policy" of Kenwood's applies just to their amateurradio 
market or to all of their two-way radio market, and if it's spelled out intheir 
warranty verbiage, or are they hiding behind the skirts of "we'll use 
OURdiscretion in deciding whether to fix something under warranty or not". 
Frankly,I think it's hilarious to think they'd expect boaters, emergency 
services personnel,much less small business owners, farmers, construction 
workers, and the like,to disconnect every cable on their equipment when not in 
use. 
From what I've seen, Amateur Radio is but a small segment of their 
overallbusiness, even just their two-way radio business, never mind 
consumerelectronics, etc. OTOH, it also sounds like they have a particular 
design issuethat they need to address so as to preserve what's left of their 
reputation.
Just my 20 millidollars' worth,
N1HO

On 8 Oct 2015 16:46, Peter Pauly wrote:

> Do you disconnect every cable when the radio is not in use?  What are
> Elecraft's expectations or recommendations to us? 
___

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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Al Gulseth

Maybe they're relying on one of the sublaws in "The Contributions of Edsel 
Murphy to the Understanding of the Behavior of Inanimate Objects":

"  II. 3. All warranty and guarantee clauses become void upon payment of 
invoice."

That being said, I think one of the factors in Elecraft's success is that 
unlike some other companies Elecraft _actually understands_ the meaning of 
the words "customer service."

73, Al

On Thu October 8 2015 9:23:45 am Mel Farrer wrote:
> I would suggest you read the manual and the warranty statement. I don't
> think you will find a disclaimer about removing all cables from the radio
> when not in use. Mel, K6KBE
>
>
>   From: Vic Rosenthal 4X6GP/K2VCO 
>  To: elecraft@mailman.qth.net
>  Sent: Thursday, October 8, 2015 7:10 AM
>  Subject: Re: [Elecraft] Unplugging the radio to protect it
>
> Very few hams, if any, disconnect EVERY cable from their rig when it is
> not in use. Having said that, it's certainly a good idea to have a
> common grounded entry point with suppression devices for power, antenna,
> phone, cable, etc. so there won't be potential differences between
> equipment in the event of nearby lightning.
>
> But in my opinion, making total disconnection of the equipment a
> condition for warranty repairs is a statement that they don't take the
> warranty seriously.
>
> 73,
> Vic, 4X6GP/K2VCO
> Rehovot, Israel
> http://www.qsl.net/k2vco/
>
> On 8 Oct 2015 16:46, Peter Pauly wrote:
> > I had an experience a couple weeks ago where the USB audio chip in my
> > Kenwood stopped working. Kenwood service refused to fix the problem under
> > warranty and blamed me for not unplugging every single cable to the radio
> > when not in use. I had only disconnected the antenna. Not the power, USB,
> > key, etc. No other equipment was affected and the USB CAT still worked,
> > so only one chip stopped working. The Kenwood service center even said
> > they have had tons of people with the same problem. That experience
> > prompted me to order a K3S and it's currently in a UPS truck somewhere
> > between CA and IN.
> >
> > My questions for you guys and gals are:
> > Do you disconnect every cable when the radio is not in use?  What are
> > Elecraft's expectations or recommendations to us?  What chip does the K3S
> > use for USB audio?  How would Elecraft, the company, have handled this
> > situation?
> >
> > Peter
> > W0VLL
>
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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Robert Nobis

Peter,

When I am away from home, I disconnect all antennas and unplug my power strip. 
When home I leave everything connected 24/7, except when there is a storm or 
threat of a storm. Then I disconnect antennas and my mains power strip. 

If that is Kenwood’s approach to customer service, I am glad I do not own any 
of their equipment.  

73,


Bob Nobis - N7RJN
n7...@nobis.net


> On Oct 8, 2015, at 06:46, Peter Pauly  wrote:
> 
> I had an experience a couple weeks ago where the USB audio chip in my
> Kenwood stopped working. Kenwood service refused to fix the problem under
> warranty and blamed me for not unplugging every single cable to the radio
> when not in use. I had only disconnected the antenna. Not the power, USB,
> key, etc. No other equipment was affected and the USB CAT still worked, so
> only one chip stopped working. The Kenwood service center even said they
> have had tons of people with the same problem. That experience prompted me
> to order a K3S and it's currently in a UPS truck somewhere between CA and
> IN.
> 
> My questions for you guys and gals are:
> Do you disconnect every cable when the radio is not in use?  What are
> Elecraft's expectations or recommendations to us?  What chip does the K3S
> use for USB audio?  How would Elecraft, the company, have handled this
> situation?
> 
> Peter
> W0VLL
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> Message delivered to n7...@nobis.net
> 

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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Matt Zilmer

It is not normal to completely disconnect a piece of station equipment
like a transceiver when it's not in use.  Some disconnect the antenna,
but I don't.  I've had K3 #24 since 2007, and the only time I worry
about disconnecting is if there is convective weather activity like
thunder or lightning.  If there is a sign of this, I disconnect all
cables from the K3 until the storm passes.

Having been an Elecraft customer since 2003 (K2 days), I never heard
of the company behaving in this manner towards a customer.  Elecraft
is more likely to bend over backwards to satisfy your needs rather
than offer up excuses.  Customer support and service is one of the
major reasons Elecraft has done so well in the Amateur market.  The
other primary cause of their success is the quality and performance of
their products.

73,
matt
W6NIA

On Thu, 8 Oct 2015 09:46:37 -0400, you wrote:

>I had an experience a couple weeks ago where the USB audio chip in my
>Kenwood stopped working. Kenwood service refused to fix the problem under
>warranty and blamed me for not unplugging every single cable to the radio
>when not in use. I had only disconnected the antenna. Not the power, USB,
>key, etc. No other equipment was affected and the USB CAT still worked, so
>only one chip stopped working. The Kenwood service center even said they
>have had tons of people with the same problem. That experience prompted me
>to order a K3S and it's currently in a UPS truck somewhere between CA and
>IN.
>
>My questions for you guys and gals are:
>Do you disconnect every cable when the radio is not in use?  What are
>Elecraft's expectations or recommendations to us?  What chip does the K3S
>use for USB audio?  How would Elecraft, the company, have handled this
>situation?
>
>Peter
>W0VLL
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>Message delivered to mzil...@roadrunner.com
Matt Zilmer, W6NIA
--
"Always store beer in a dark place."  -R. Heinlein

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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Doug Ellmore

I had damaged TWO FT-1000D rigs in 2001 from lightening.

Both rigs were disconnected from the antenna.  Both rigs were unplugged
from everything EXCEPT from the ground bus and serial connector to the PC.
The pc was disconnected from everything EXCEPT the modem.

When the lightening hit my 40' Rohn 25 tower twice within a couple of
minutes, the path was  modem card in PC to rig ground.  The tower and house
were properly grounded.

Yaesu confirmed damaged was in the serial interface.

Thank goodness I don't have dial-up internet.  But, watch your other
opportunities for paths to ground.

73 NA1DX

-- 
Doug Ellmore
d...@ellmore.net
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[Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Art Nienhouse

*/I had an event several years ago where something hit Charter Cable 
several miles away the hit came in through the internet cable, hit the 
modem took out everything connected by

Ethernet cable back to the Motorola Modem.
The list includes .
Motorola Modem
Wifi router
Magic Jack Plus
Dell 8400 that was connected via the Ethernet cable
And U1 I think it was on the K3 ki03 board which was connected via cable 
to the Dell 8400.


There never was a lightning event that I saw or heard, if the Dell would 
have been connected to the Wire Less WIFI and not hard wired via a cable 
the radio and computer would have been ok.
I took the ocasion to send the radio back to Elecraft and have it 
updated there service is better than the best I sold a house full of 
Yaesu gear and never looked back.


Regards
Art
ka9zap
/*
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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Edward R Cole

I do not unplug anything when not in use.  Never had a failure from 
doing that.  I do live in a virtually lightning free environment but 
static buildup in dry winter winds can happen.  This is why having a 
shorted RFC across antenna lead -in or back/back diodes on RX input 
are used.  System is all grounded to central point going to outside 
ground rod and one tower has a ground rod for HF radial system (and tower).


Many years ago I was comm officer on a BLM Wildfire sitting at Base 
Camp at 2400-foot on a mountain ridge in AK when a strong wind blew 
up in advance of a storm.  We used VHF MOT HT's connected to whips 
mounted on 30-foot fiberglass telescoping masts (for quick 
deployment).  Operators complained of getting shocks from the radios 
which I dismissed until I tried picking up one sitting on the tundra 
and drew a 4-inch arc - ouch!  Radios totally survived this.  We left 
the radios lying on the ground until the winds subsided.


I own nothing made by Kenwood.  Guess now I never will.  Mostly 
Elecraft at the present with some older MOT and Yaesu VHF stuff.  In 
my opinion Kenwood long ago lost out to both Icom and Yaesu...and, of 
course, Elecraft.  I wonder if a letter to the CEO of Kenwood would 
have any effect.  Otherwise write this up in every ham newsletter and 
on-line review.  That works for Consumers Report.


At work, I specified models when buying and we converted all to MOT 
over from some GE/Ericson and a few Sinclair.  Reputation for quality 
and backing the customer.


73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com

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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Elecraft K3

Hmm, this thread has got me wondering if a fiber optics telecom/tv/internet 
link provides some degree of protection against distant lightning strikes.

Seems like it should.

73 de Eric, KG6MZS
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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Pierfrancesco Caci

On 8 October 2015 15:46:37 CEST, Peter Pauly  wrote:
.
>
>My questions for you guys and gals are:
>Do you disconnect every cable when the radio is not in use?  What are
>Elecraft's expectations or recommendations to us?  What chip does the
>K3S
>use for USB audio?  How would Elecraft, the company, have handled this
>situation?
>
>Peter
>W0VLL
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Like many others in this thread, I disconnect only the antennas.

I once lost a Cisco aironet wireless access point during a thunderstorm because 
the wired Ethernet cable feeding it acted as antenna for a natural EMP. 
I guess your case is similar.

Proper bonding should help reduce the risk, according to the sages of this 
group :)

Pf
-- 
Pierfrancesco Caci

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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Bob McGraw - K4TAX

Having done warranty work for Kenwood, both on commercial and amateur
products, they are very "fussy" about warranty policy. From experience,
every "I" and every "T" must be dotted and crossed, otherwise they most
likely will reject a warranty claim. Now, there are others, such as
myself, being independent dealers or service providers that can make
individual exceptions to the practice/rule and in effect slide things
under the wire.

Yes, from my take, the amateur market is a a very small part of their
business. In other words, so small that if it went away, someone would
likely do without lunch for one day...that's all.

Being retired, I no longer do any service work for any JA company or
organization. In most cases, I have a "bad taste in my mouth" for their
business practice. And to close, I spent 15 years of my professional
career working in upper management for a major JA company.

If one's system is properly designed and installed and maintained, there
is no valid reason to disconnect anything, anytime.

73
Bob, K4TAX

On 10/8/2015 10:10 AM, Bayard Coolidge, N1HO wrote:

No, I don't disconnect *every cable, usually just the antenna coax as itenters
the shack (which, in NC, is in the basement and a coax feed-throughcomes
through a concrete block and brick wall, and the disconnect pointis at the
wall, 4-5m from the equipment). All equipment (except handhelds)is properly
grounded, as discussed thoroughly on this list recently, and fused.
I'm wondering if this "policy" of Kenwood's applies just to their amateurradio market or
to all of their two-way radio market, and if it's spelled out intheir warranty verbiage, or are
they hiding behind the skirts of "we'll use OURdiscretion in deciding whether to fix something
under warranty or not". Frankly,I think it's hilarious to think they'd expect boaters,
emergency services personnel,much less small business owners, farmers, construction workers, and
the like,to disconnect every cable on their equipment when not in use.
From what I've seen, Amateur Radio is but a small segment of their
overallbusiness, even just their two-way radio business, never mind
consumerelectronics, etc. OTOH, it also sounds like they have a particular
design issuethat they need to address so as to preserve what's left of their
reputation.
Just my 20 millidollars' worth,
N1HO

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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread bill NY9H


ALL the Ham stuff  K system/ big icom survived a near strike...
  the antennas are disconnected at the garage entrance , where 4 10' 
rods are ...


the stuff came in the phone line, into a phone poof  across the 
phone guts to the other line ..magicjackpoof... into the router  poof...

nic card on the raid drive, main cpu MB, new 42" TV set ( now only wifi)
solar array controller   poof poof poof  ( now getting expensive) 
control circuits in two 5KW solar inverters.$$$  hello insurance company.

now have separate phone on the magicjack,,, and a large bank of surge(MOVs)
on the phone line from verizon.  and i disconnect  all hdmi pwr & 
coax from the TV in a storm.


Joys of living on a hill    can't flood

bill

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[Elecraft] unplugging the radio to protect it

2015-10-08 Thread James Wilson

*Back in 2009, I had a direct lightning hit on an antenna that was
disconnected from my K3. The path to ground was over to the telephone line,
computer, ethernet cable to another computer, RS232 cable and into the K3.
Did a fair amount of damage. Looking back, a disconnect of ALL may have
been a good ides.*
*BUT, I still don't do it. :-)*

*Jim - W4RKS*

*-*
*>Peter Pauly* ppauly at gmail.com

*>Thu Oct 8 09:46:37 EDT 2015*


   -

>I had an experience a couple weeks ago where the USB audio >chip in my
>Kenwood stopped working. Kenwood service refused to fix the >problem under
>warranty and blamed me for not unplugging every single cable >to the radio
>when not in use.
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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Eric Swartz - WA6HHQ, Elecraft

Folks - We're exceeding the single topic short term posting limit. Lightning 
protection in the shack is a recurring topic on the list and can easily be 
searched for in the Nabble archives at elecraft.com/elist.html


Let's close the thread for now in the interest of relieving list email overload.

73,

Eric
/elecraft.com/

On 10/8/2015 9:40 AM, bill NY9H wrote:

ALL the Ham stuff  K system/ big icom survived a near strike...
  the antennas are disconnected at the garage entrance , where 4 10' rods are 
...


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Re: [Elecraft] K3/100 low power setting "gap"

2015-10-08 Thread Fred Townsend

Hi Felix:
Don't we all wish we had your problem. One work around would be to put a 3db
pad between your K3 and your amp. That might help your IMD too. Just a
thought.
73
Fred, AE6QL

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Felix Hormuth
Sent: Thursday, October 8, 2015 12:20 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3/100 low power setting "gap"

Dear all,

I have a kind of luxury problem concerning achieving output powers in FSK
between 9.5 and 13W. The setup: a relatively new K3/100 with the last
firmware a recent TX gain calibration. I'm doing a lot of RTTY, mostly in
submode FSK D. Now I hooked up a 1K-FA linear amplifier which has quite some
gain. For serious work in RTTY I'd like to settle around 500W output, i.e.
half max.
The ideal input power for that would be somewhere between 10 and 12W.

Now the problem: for powers below 13W only the LPA is active. The output
power in RTTY goes up to 9.5W but not further, regardless if I set 10, 11,
or 12W. When I increase to 13W the KPA3 kicks in and I get ~13.5W.
So at the moment I cannot reach the 'sweet spot' that would be required for
my desired 500W RTTY.

So the questions are:
- Is the LPA capable at all for CW output of 10-12W or does that only  apply
for PEP in SSB? Are 12W only possible w/o KPA3 installed?
- Has someone an idea for a good workaround?

So far I only came up with the idea to manually mis-"calibrate" the TX gain
in order to reduce the overall output so that I start in fact with ~10W when
I set the output to 13W. That'd limit the maximum output to below 100W but
that would actually fine for me. Without PA I'll be doing only PSK and JT65,
and for that 50W are more than enough.
However, that's a rather nasty solution and if anyone has a better
suggestion I would be happy to hear about it.

vy 73,
Felix DL2FHO





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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Gary Smith

In 1980 I bought a then new Kenwood 820S 
which had myriad issues. Looked inside 
after a week and almost every solder joint 
on the boards were cold soldered. 
Contacted kenwood and they said they no 
longer dealt with the dealer I bought from 
and they would not honour the warranty. 

I asked a Japanese friend if she would 
translate a letter to Kenwood in Japan, I 
sent that to their headquarters and never 
heard back. 

I never bought a Kenwood anything again, 
went TenTec. Now I only use Elecraft and 
my old early 90's Alpha.

73,

Gary
KA1J
> Having done warranty work for Kenwood, both on commercial and amateur 
> products, they are very "fussy" about 
warranty policy.  


---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Phil Hystad

> Folks - We're exceeding the single topic short term posting limit. Lightning 
> protection in the shack is a recurring topic on the list and can easily be 
> searched for in the Nabble archives at elecraft.com/elist.html
> 
> Let's close the thread for now in the interest of relieving list email 
> overload.
> 73,
> Eric
> /elecraft.com/


And, here I was just finishing up a 3000-word missive on the excellent 
unplugging methods I have employed.  OK, I deleted it.  I won’t add to the 
Elecraft list background noise except for this anti-missive. 

73, phil, K7PEH


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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Bill Blomgren (kk4qdz)

 off list because it isn't on topic.
An old retired friend worked in Telcom for decades (including the shore station 
that AT had in Florida to connect to their subscribers in the Caribbean...
He mentioned that the really LONG underground fiber links across the country 
(down 6-8 feet) attract lightning like crazy.. where lightning is hunting for 
the steel wire down the middle of the bundle that is used to find the line if 
there is a problem.
Well, lightning finds it a LOT.. and causes a whole bunch of HOT in one spot 
that typically microshatters bout 1/2 mile of fiber in each direction.. or at 
least used to.
no idea if the ZOT! on the steel wire damaged equipment at either end.. but it 
was a big problem.


.
KK4QDZ - Now with Extra Class Priv's, and a tiny KX3 to enjoy them!
  From: Elecraft K3 
 To: p...@tippete.net 
Cc: Elecraft Reflector  
 Sent: Thursday, October 8, 2015 12:47 PM
 Subject: Re: [Elecraft] Unplugging the radio to protect it
   
Hmm, this thread has got me wondering if a fiber optics telecom/tv/internet 
link provides some degree of protection against distant lightning strikes.

Seems like it should.

73 de Eric, KG6MZS


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[Elecraft] Disconnecting Equipment

2015-10-08 Thread Dauer, Edward

My operating QTH is in an area where lightning is common and the storms
often severe, and where a small, rural electric coop provides the power.
As a result, there are occasional voltage surges in the AC mains during
storms.  I have never measured it, but the house lights brighten when
lightning is happening very close by.  In addition, I am at that QTH only
four or five days a month.  The rest of the time the equipment is on its
own.

I ground the antenna line from the rig through an antenna switch; and I
unplug the AC cords to all of the power supplies (two cords, each leading
to multiple-outlet strips, each on a separate AC main from the breaker
box.)  That may be overkill since each of the strips is switched, but it
takes only a second to do it.  Nothing else is disconnected when I leave.
So far, several years on, no problems.

I can¹t imagine Elecraft having responded as Kenwood did in your case.

Welcome to the K3(S) club.

Ted, KN1CBR

>On 8 Oct 2015 16:46, Peter Pauly wrote:
>> I had an experience a couple weeks ago where the USB audio chip in my
>> Kenwood stopped working. Kenwood service refused to fix the problem
>>under
>> warranty and blamed me for not unplugging every single cable to the
>>radio
>> when not in use. I had only disconnected the antenna. Not the power,
>>USB,
>> key, etc. No other equipment was affected and the USB CAT still worked,
>>so
>> only one chip stopped working. The Kenwood service center even said they
>> have had tons of people with the same problem. That experience prompted
>>me
>> to order a K3S and it's currently in a UPS truck somewhere between CA
>>and
>> IN.
>>
>> My questions for you guys and gals are:
>> Do you disconnect every cable when the radio is not in use?  What are
>> Elecraft's expectations or recommendations to us?  What chip does the
>>K3S
>> use for USB audio?  How would Elecraft, the company, have handled this
>> situation?
>>
>> Peter
>> W0VLL
>

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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread John K9UWA

With three towers top is at 170 feet above ground level. Tallest trees are 
about 80 feet. We do get HIT lots of times per year. I unplug NOTHING. 

HOWEVER every wire and anything that is metal that comes and goes from 
our house is protected by a Polyphaser Protective device. Buried in the yard 
at 100 ground rods. Each one is 8 feet. Spaced at 16 foot intervals as a 
Triangle between the three towers plus radial strips outward from the towers 
to at least 1/3rd the total height. Plus perimeter ground around the house. As 
you have seen leave just one little wire someplace that isn't protected and 
POOF as they say damage to lots of things can happen. 

Consider the today many Ham Stations are remotely operated as is my 
station. No way to disconnect and reconnect. So it is either fix the stuff so 
it 
doesn't blow up or else deal with the consequences. 

If you haven't already seen it this is a video a friend took at my place a week 
or so ago when we installed a new Low Band Receiving antenna. 
https://www.youtube.com/watch?v=WXvRrummVFY

John k9uwa
John Goller, K9UWA & Jean Goller, N9PXF 
Antique Radio Restorations
k9...@arrl.net
Visit our Web Site at:
http://www.JohnJeanAntiqueRadio.com
4836 Ranch Road
Leo, IN 46765
USA
1-260-637-6426

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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Bill Mader

In addition to disconnecting all antenna cables and the single AC power
cord for all but my remote base radio (not connected to any other shack
gear), I unplug AC power and the DSL cord to my MODEM/router.  I lost the
previous router (and many other devices) during a lightning strike years
ago.  CAT5 cable conducts quite well!

73, Bill, K8TE

-- 
Cheers, Bill
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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Pierfrancesco Caci

> "Elecraft" == Elecraft K3  writes:


Elecraft> Hmm, this thread has got me wondering if a fiber optics
Elecraft> telecom/tv/internet link provides some degree of
Elecraft> protection against distant lightning strikes. 
Elecraft> Seems like it should.

Yes, but the problem is your internal wiring. Even if you invest in a
switch with optical ports (they come cheap on the used market), and you
put an optical port in your main desktop PC, there are a lot of devices
that only have copper. What killed my access point was a ligthning strike at
some distance coupling to a ~4 m long ethernet cable connecting the AP
to the switch.

Incidentally, fiber would help get rid of those nice carriers polluting
12 and 10 m. 

Pf

-- 
Pierfrancesco Caci, ik5pvx
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[Elecraft] FS: K3/100

2015-10-08 Thread Jim Rogers

K3/100 S/N 8164 purchased April 2, 2014 from Elecraft as a Kit. 
Assembled by a Certified Electronics Technician with over 60 years of 
amateur and professional experience(me). Condition is immaculate. 
Removed from service when my K3s arrived and it is now extraneous to my 
needs.  I also have available a Timewave Navigator with the custom K3 
cable, which provides a single USB connection from radio to computer, 
including sure enough FSK for RTTY and a K1EL Winkeyer for CW (fully 
supported by HRD) Unlike some similar interfaces, the Navigator supports 
firmware update to the K3 without any cable changes. We can negotiate 
the inclusion of the Navigator if interested in acquiring both.


Internals:
KPA3 (naturally)
KANT3 (no atu)
KXV3A
KFL3A 2.8 8 pole filter
KTCX03-1 1ppm TCXO

All manuals and documentation included.

Latest firmware and calibration.
Asking $2200 for the K3/100 shipped (Continental US). I have allowed 
$100.00 for shipping. IF less or picked up, remaining shipping will be 
refunded. If more, my bad and the difference is mine. This offering is 
for PAYPAL ONLY.  No cashier's checks, or postal money orders.  If the 
buyer is local and planning on attending the Helena (AL) Hamfest this 
Saturday, I will have the K3 there with me.  Any question or for 
additional information email and cell number provided below.


Jim, W4ATK
jim.w4...@gmail.com
(205) 520-4530
K-Line
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[Elecraft] !.8 kHz 8 pole filter for sale

2015-10-08 Thread RICHARD SCHMIEDT

Hey all,I have a 1.8 kHz crystal filter I took out of my K3 for lack of use. 
New ones are $140. I'll sell this for $90 plus shipping. Pay Pal is best.
If you're interested, contact me off list.
Thanks,
RickW4GE

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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread F5vjc

Lighning ! There but for the grace of 'Good Luck' go I...

73,  Deni - F5VJC



On 8 October 2015 at 22:50, drewko  wrote:

> During active periods of lightning I sometimes disconnect everything from
> my K3, including headphones and key. I turn off my computer and disconnect
> everything from it also (ethernet cables seem especially prone to nearby
> lightning strikes).
>
> When in use they are powered through heavy series-mode surge protectors
> (i.e. big inductors), vs sacrificial MOV shunts.
>
> 73,
> Drew
> AF2Z
>
>
>
>
> On 10/08/15 09:46, Peter Pauly wrote:
>
>> I had an experience a couple weeks ago where the USB audio chip in my
>> Kenwood stopped working. Kenwood service refused to fix the problem under
>> warranty and blamed me for not unplugging every single cable to the radio
>> when not in use. I had only disconnected the antenna. Not the power, USB,
>> key, etc. No other equipment was affected and the USB CAT still worked, so
>> only one chip stopped working. The Kenwood service center even said they
>> have had tons of people with the same problem. That experience prompted me
>> to order a K3S and it's currently in a UPS truck somewhere between CA and
>> IN.
>>
>> My questions for you guys and gals are:
>> Do you disconnect every cable when the radio is not in use?  What are
>> Elecraft's expectations or recommendations to us?  What chip does the K3S
>> use for USB audio?  How would Elecraft, the company, have handled this
>> situation?
>>
>> Peter
>> W0VLL
>> __
>>
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> Message delivered to foxfive@gmail.com
>
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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread W0WFH Bill

Eric:I am a big believer in UPS's that will run on an external battery.  Or I 
modifythe old UPS's to run on a battery.  Stoplots of spikes and other nasty 
things on power lines.  My K line run all on UPS'sand with external batteries.  

AN ALWAYS DISCONNECT ANTENNAS.  I use polyphasers too but I had several of them 
burn out caused by lighting an surewouldn't have wanted to have had anything 
hooked up to them when the blew.
Very good advice Eric.Bill Hudson, W0WFHex. cellular and two way field 
tech.Linn, Mo. 65051

  From: Eric Ross 
 To: elecraft@mailman.qth.net 
 Sent: Thursday, October 8, 2015 2:35 PM
 Subject: Re: [Elecraft] Unplugging the radio to protect it
   
On my computer equipment, including routers/switches, I have become a
very strong advocate of putting a full UPS between the wall and the
device.  When I say full UPS I mean one that is always sourcing the
device from the battery and not directly being fed from the primary
source.  The drawback of this is that they use a step-wise approximation
of AC on the output.  I haven't tried it directly with my K3 to see
what noise gets through, but my computer, which is right next to it  is
not emitting anything worth noting.  This way both power and network are
relatively protected coming into my computers.  I don't have any phone
lines connected to the computers either.  All my voice via the computer
is through the network.  The only route into the K3 is then the primary
power supply and the antenna.  I have also plan to put a battery between
the power supply and the radio just for backup power needs as well which
will then narrow it down to the antenna as the primary energy source.

Eric
kb7td


On Thu, Oct 8, 2015, at 12:34 PM, Eric Ross wrote:
> On my computer equipment, including routers/switches, I have become a
> very strong advocate of putting a full UPS between the wall and the
> device. 
> When I say full UPS I mean one that is always sourcing the device from
> the battery and not directly being fed from the primary source.  The
> drawback
> of this is that they use a step-wise approximation of AC on the output. 
> I haven't tried it directly with my K3 to see what noise gets
> through, but my computer, which is right next to it  is not emitting
> anything worth noting.  This way both power and network are relatively
> protected coming into my computers.  I don't have any phone lines
> connected to the computers either.  All my voice via the computer is
> through the network.  The only route into the K3 is then the primary
> power supply
> and the antenna.  I have also plan to put a battery between the power
> supply and
> the radio just for backup power needs as well which will then narrow it
> down to the antenna as the primary energy source.
> 
> Eric
> kb7td
> 
> On Thu, Oct 8, 2015, at 12:02 PM, Pierfrancesco Caci wrote:
> > > "Elecraft" == Elecraft K3  writes:
> > 
> > 
> >    Elecraft> Hmm, this thread has got me wondering if a fiber optics
> >    Elecraft> telecom/tv/internet link provides some degree of
> >    Elecraft> protection against distant lightning strikes. 
> >    Elecraft> Seems like it should.
> > 
> > Yes, but the problem is your internal wiring. Even if you invest in a
> > switch with optical ports (they come cheap on the used market), and you
> > put an optical port in your main desktop PC, there are a lot of devices
> > that only have copper. What killed my access point was a ligthning strike
> > at
> > some distance coupling to a ~4 m long ethernet cable connecting the AP
> > to the switch.
> > 
> > Incidentally, fiber would help get rid of those nice carriers polluting
> > 12 and 10 m. 
> > 
> > Pf
> > 
> > -- 
> > Pierfrancesco Caci, ik5pvx
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft@mailman.qth.net
> > 
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to kb...@evross.com
> 
> 
> -- 
>  Eric Ross


-- 
Eric
kb7td
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Re: [Elecraft] KX3 VSWR problem

2015-10-08 Thread WD4SDC

Rick Robinson wrote
> Could it be your load is not rated to 50 MHZ ? Some are only good to 30
> MHZ.

Hi Rick.  Good point.  I should have included my load spec w/ the "facts":
I'm using a Narda 40W DC->12GHz w/ N->BNC adapter I borrowed at work. And
verified it @ 50MHz - just because sometimes test equipment gets abused ;)

Steve.



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[Elecraft] KSYN3 Cheap

2015-10-08 Thread Wally -K7FEL-

Someone must need the old KSYN3  (NOT B) board?  It's a paperweight here.
I'll sell it for $15 to cover shipping and a cup of coffee.  Any takers? 
Wally  K7FEL



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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread drewko

During active periods of lightning I sometimes disconnect everything 
from my K3, including headphones and key. I turn off my computer and 
disconnect everything from it also (ethernet cables seem especially 
prone to nearby lightning strikes).


When in use they are powered through heavy series-mode surge protectors 
(i.e. big inductors), vs sacrificial MOV shunts.


73,
Drew
AF2Z



On 10/08/15 09:46, Peter Pauly wrote:

I had an experience a couple weeks ago where the USB audio chip in my
Kenwood stopped working. Kenwood service refused to fix the problem under
warranty and blamed me for not unplugging every single cable to the radio
when not in use. I had only disconnected the antenna. Not the power, USB,
key, etc. No other equipment was affected and the USB CAT still worked, so
only one chip stopped working. The Kenwood service center even said they
have had tons of people with the same problem. That experience prompted me
to order a K3S and it's currently in a UPS truck somewhere between CA and
IN.

My questions for you guys and gals are:
Do you disconnect every cable when the radio is not in use?  What are
Elecraft's expectations or recommendations to us?  What chip does the K3S
use for USB audio?  How would Elecraft, the company, have handled this
situation?

Peter
W0VLL
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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Ignacy

I usually disconnect antennas when away but keep the power connected.

Last time going for a month-long vacation I disconnected all power. After
reconnecting, there was a loud bang  and Expert 2k-fa was gone.

Sometimes the cure is worse than the disease.

Ignacy, NO9E 



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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Eric Swartz - WA6HHQ, Elecraft

This thread and the 'disconnecting equipment' thread were closed earlier this 
morning.


73,
Eric
Moderator
/elecraft.com/

On 10/8/2015 11:12 AM, Ignacy wrote:

I usually disconnect antennas when away but keep the power connected.

Last time going for a month-long vacation I disconnected all power. After
reconnecting, there was a loud bang  and Expert 2k-fa was gone.

Sometimes the cure is worse than the disease.

Ignacy, NO9E



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Re: [Elecraft] Unplugging the radio to protect it

2015-10-08 Thread Eric Ross

On my computer equipment, including routers/switches, I have become a
very strong advocate of putting a full UPS between the wall and the
device.   When I say full UPS I mean one that is always sourcing the
device from the battery and not directly being fed from the primary
source.  The drawback of this is that they use a step-wise approximation
of AC on the output.   I haven't tried it directly with my K3 to see
what noise gets through, but my computer, which is right next to it  is
not emitting anything worth noting.  This way both power and network are
relatively protected coming into my computers.  I don't have any phone
lines connected to the computers either.  All my voice via the computer
is through the network.  The only route into the K3 is then the primary
power supply and the antenna.  I have also plan to put a battery between
the power supply and the radio just for backup power needs as well which
will then narrow it down to the antenna as the primary energy source.

Eric
kb7td


On Thu, Oct 8, 2015, at 12:34 PM, Eric Ross wrote:
> On my computer equipment, including routers/switches, I have become a
> very strong advocate of putting a full UPS between the wall and the
> device. 
> When I say full UPS I mean one that is always sourcing the device from
> the battery and not directly being fed from the primary source.  The
> drawback
> of this is that they use a step-wise approximation of AC on the output. 
> I haven't tried it directly with my K3 to see what noise gets
> through, but my computer, which is right next to it  is not emitting
> anything worth noting.  This way both power and network are relatively
> protected coming into my computers.  I don't have any phone lines
> connected to the computers either.  All my voice via the computer is
> through the network.  The only route into the K3 is then the primary
> power supply
> and the antenna.  I have also plan to put a battery between the power
> supply and
> the radio just for backup power needs as well which will then narrow it
> down to the antenna as the primary energy source.
> 
> Eric
> kb7td
> 
> On Thu, Oct 8, 2015, at 12:02 PM, Pierfrancesco Caci wrote:
> > > "Elecraft" == Elecraft K3  writes:
> > 
> > 
> > Elecraft> Hmm, this thread has got me wondering if a fiber optics
> > Elecraft> telecom/tv/internet link provides some degree of
> > Elecraft> protection against distant lightning strikes. 
> > Elecraft> Seems like it should.
> > 
> > Yes, but the problem is your internal wiring. Even if you invest in a
> > switch with optical ports (they come cheap on the used market), and you
> > put an optical port in your main desktop PC, there are a lot of devices
> > that only have copper. What killed my access point was a ligthning strike
> > at
> > some distance coupling to a ~4 m long ethernet cable connecting the AP
> > to the switch.
> > 
> > Incidentally, fiber would help get rid of those nice carriers polluting
> > 12 and 10 m. 
> > 
> > Pf
> > 
> > -- 
> > Pierfrancesco Caci, ik5pvx
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft@mailman.qth.net
> > 
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to kb...@evross.com
> 
> 
> -- 
>   Eric Ross


-- 
Eric
kb7td
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