Re: [Elecraft] KX2 transmit CW while receiving SSB?

[David F. Reed]

Thanks; don't know how I missed that, but I did.

72 de Dave, W5SV

On 7/29/16 20:41, w7aqk wrote:
It's referenced in the Index, on Page 70--"CW, Sending in SSB mode, 
44". Not that hard to find!!!


Anyway, go to page 44 of the manual.  Bring up "CW Weight" on the menu 
of your KX2.  Then tap "1" until you get SSB + CW displayed. It should 
only take one tap.  That's the same procedure the KX3 uses.


Dave W7AQK




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Re: [Elecraft] Is there a 1500w amp from Elecraft in our future??

[Phil Wheeler]

Not to mention Wayne repeatedly denying the rumors.

Phil W7OX

On 7/29/16 7:33 PM, Ken Arck wrote:

From 2006? Really?


At 07:28 PM 7/29/2016, a...@juno.com wrote:

Here are those pics:
http://www.n6ie.com/Elecraft.html

I'm thinking it's the next logical major item 
for Elecraft to offer.


John AE5X
http://ae5x.blogspot.com/
___
and saw a 1kw or more Elecraft prototype. I am 
sure there are photos out there

somewhere

I am sure with Elecrafts business plan a large 
amp is not on the "list" .


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[Elecraft] Is there a 1500w amp from Elecraft in our future??

[Guy Olinger K2AV]

Wayne just posted that there are no such plans.

73, Guy K2AV

Wayne Burduck wrote:

Both statements are false. Demote your source :)

Wayne
N6KR

On Friday, July 29, 2016, a...@juno.com
 > wrote:

> Here are those pics:
> http://www.n6ie.com/Elecraft.html
>
> I'm thinking it's the next logical major item for Elecraft to offer.
>
> John AE5X
> http://ae5x.blogspot.com/
> ___
> and saw a 1kw or more Elecraft prototype. I am sure there are photos out
> there
> somewhere
>
> I am sure with Elecrafts business plan a large amp is not on the "list" .
>
> 
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> Set up is easy. Get online in minutes.
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Re: [Elecraft] Is there a 1500w amp from Elecraft in our future??

[Kevin]

It'll happen again at the end of January. Twice a year for the last 10.

Time to catch a clue boys. If it was going to happen it would have by now.


On 7/29/2016 10:04 PM, Kevin wrote:

It is about that time again.


On 7/29/2016 7:34 PM, Guy Olinger K2AV wrote:
This rumor or a close cousin bubbles up out of the stinky mud every 
now and
then. Don't believe anything until you hear it from the principal 
owners.

Back to sleep.

73, Guy K2AV

On Friday, July 29, 2016, Jerry  wrote:


Greetings all,



I heard a rumor this afternoon that Elecraft is going to be marketing a
1500
watt amp at approx $6000.00 very soon. The rumor mill continues with 
the

story that Elecraft is going to buy the amp. From a "unknown" European
company and stick Elecraft's name on the product.



Sounds kinda far-fetch to me, but you never know..



Is this a very belated "April Fools" joke??



Best regards,



Jerry, W1IE



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Re: [Elecraft] Is there a 1500w amp from Elecraft in our future??

[Kevin]

It is about that time again.


On 7/29/2016 7:34 PM, Guy Olinger K2AV wrote:

This rumor or a close cousin bubbles up out of the stinky mud every now and
then. Don't believe anything until you hear it from the principal owners.
Back to sleep.

73, Guy K2AV

On Friday, July 29, 2016, Jerry  wrote:


Greetings all,



I heard a rumor this afternoon that Elecraft is going to be marketing a
1500
watt amp at approx $6000.00 very soon. The rumor mill continues with the
story that Elecraft is going to buy the amp. From a "unknown" European
company and stick Elecraft's name on the product.



Sounds kinda far-fetch to me, but you never know..



Is this a very belated "April Fools" joke??



Best regards,



Jerry, W1IE



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NAQCC #3441


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Re: [Elecraft] [ KX2] KXBT2 Charger

[Ray Sills]

Hi Bill:

One slick trick I’ve done with chargers is to use one of those timer switches… 
the type often used to turn on and off interior lighting, to make it appear 
that someone is home, when they are not home.   The model I have uses some 
plastic pins, color coded, to set the “on” time, (green) and the off time 
(red).   I just use the red pin, adjust the timer for the interval needed, 
based on the current time of day, and manually turn on the timer.  When it gets 
to the “off” time, it shuts off… never to turn on again, because there are no 
green pins in the timer wheel.  A great one-time-only power control.

73 de Ray
K2ULR
KX3 #211


> On Jul 29, 2016, at 10:22 PM, Bill Frantz  wrote:
> 
> I would get a timer switch, set it for the recommended charging time. and run 
> the charger off that switch. If you get back before it starts charging again, 
> all should be well.
> 
> 73 Bill AE6JV
> 
> On 7/29/16 at 5:02 PM, donw...@embarqmail.com (Don Wilhelm) wrote:
> 
>> If you wish to charge them overnight, I suggest you put them in a 
>> non-flammable pan outdoors (away from buildings) and power the charger with 
>> an extension cord.
>> That is for the safety of you and yours in case something bad happens.
> 
> ---
> Bill Frantz| I don't have high-speed  | Periwinkle
> (408)356-8506  | internet. I have DSL.| 16345 Englewood Ave
> www.pwpconsult.com |  | Los Gatos, CA 95032
> 
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Re: [Elecraft] Is there a 1500w amp from Elecraft in our future??

[Ken Arck]

From 2006? Really?


At 07:28 PM 7/29/2016, a...@juno.com wrote:

Here are those pics:
http://www.n6ie.com/Elecraft.html

I'm thinking it's the next logical major item for Elecraft to offer.

John AE5X
http://ae5x.blogspot.com/
___
and saw a 1kw or more Elecraft prototype. I am sure there are photos out there
somewhere

I am sure with Elecrafts business plan a large amp is not on the "list" .


Affordable Wireless Plans
Set up is easy. Get online in minutes.
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[Elecraft] KX3 Setting frequency memories via the programming interface

[Bill Frantz]

How do you set a frequency memory from a PC program? I assume 
you first set the radio for the frequency/mode/DSP 
bandwidth/etc. and then store the settings into a frequency 
memory. What is the command for setting the frequency memory? I 
see MC in the manual with GET and SET formats. Does one set the 
memory and the other recall the memory to the radio? Just how 
does this work?


Thanks - Bill AE6JV

---
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(408)356-8506  |not an add-on feature. - Attr-| 16345 
Englewood Ave
www.pwpconsult.com |ibuted to Andrew Tanenbaum| Los Gatos, 
CA 95032


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[Elecraft] Is there a 1500w amp from Elecraft in our future??

[a...@juno.com]

Here are those pics:
http://www.n6ie.com/Elecraft.html

I'm thinking it's the next logical major item for Elecraft to offer.

John AE5X
http://ae5x.blogspot.com/
___
and saw a 1kw or more Elecraft prototype. I am sure there are photos out there
somewhere

I am sure with Elecrafts business plan a large amp is not on the "list" .


Affordable Wireless Plans
Set up is easy. Get online in minutes.
Starting at only $9.95 per month! 
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Re: [Elecraft] [ KX2] KXBT2 Charger

[Bill Frantz]

I would get a timer switch, set it for the recommended charging 
time. and run the charger off that switch. If you get back 
before it starts charging again, all should be well.


73 Bill AE6JV

On 7/29/16 at 5:02 PM, donw...@embarqmail.com (Don Wilhelm) wrote:

If you wish to charge them overnight, I suggest you put them in 
a non-flammable pan outdoors (away from buildings) and power 
the charger with an extension cord.

That is for the safety of you and yours in case something bad happens.


---
Bill Frantz| I don't have high-speed  | Periwinkle
(408)356-8506  | internet. I have DSL.| 16345 
Englewood Ave
www.pwpconsult.com |  | Los Gatos, 
CA 95032


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[Elecraft] Linear amps

[Gmail]

Be careful using the offshore unfiltered  amps on 10 meters. The harmonics fall 
into the aviation navigation band.  There is one made in Italy amp that is 
unfiltered. If you look at the company's web site the amps are listed as "not 
for US export".  They were at Dayton and are now making US models. Best to only 
buy external amps that are marked FCC certified. 
Ray
W8LYJ

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[Elecraft] KX2 transmit CW while receiving SSB?

[w7aqk]

It's referenced in the Index, on Page 70--"CW, Sending in SSB mode, 44". 
Not that hard to find!!!


Anyway, go to page 44 of the manual.  Bring up "CW Weight" on the menu of 
your KX2.  Then tap "1" until you get SSB + CW displayed.  It should only 
take one tap.  That's the same procedure the KX3 uses.


Dave W7AQK




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Re: [Elecraft] Is there a 1500w amp from Elecraft in our future??

[Rick Robinson]

I am very fortunate to have been to the SWODXA DX dinner one year and saw a
1kw or more Elecraft prototype. I am sure there are photos out there
somewhere but it was a nice looking amp. It created lots of buzz that
evening. Then it was scuttled off to parts unknown to never be seen by the
masses. It might be in Area 51. Anyway I am sure with Elecrafts business
plan a large amp is not on the "list" .

On Friday, July 29, 2016, Jerry  wrote:

> Greetings all,
>
>
>
> I heard a rumor this afternoon that Elecraft is going to be marketing a
> 1500
> watt amp at approx $6000.00 very soon. The rumor mill continues with the
> story that Elecraft is going to buy the amp. From a "unknown" European
> company and stick Elecraft's name on the product.
>
>
>
> Sounds kinda far-fetch to me, but you never know..
>
>
>
> Is this a very belated "April Fools" joke??
>
>
>
> Best regards,
>
>
>
> Jerry, W1IE
>
>
>
> __
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>


-- 
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Re: [Elecraft] Is there a 1500w amp from Elecraft in our future??

[joeduerbusch]

At Dayton this  year, Flex showed their soon to be 1.2 kw amp.  It is a
rebranded Europe amp.  It is on their website.

Joe K0BX


#1 Honor Roll Mixed
Honor Roll Phone
Honor Roll CW
Honor Roll RTTY
Honor Roll 20 Meters
5BDXCC Plus 30,17,12
5BWAS

Stop the insanity!
Please do not add me to any distribution lists (Joke, Stories or Junk)
without my permission.

On Sat, Jul 30, 2016 at 1:09 AM, Wayne Burdick  wrote:

>
> On Jul 29, 2016, at 5:20 PM, "Jerry"  wrote:
>
> > I heard a rumor this afternoon that Elecraft is going to be marketing a
> 1500
> > watt amp at approx $6000.00 very soon. The rumor mill continues with the
> > story that Elecraft is going to buy the amp.
>
>
> Both statements are false. Demote your source :)
>
> Wayne
> N6KR
>
>
>
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Re: [Elecraft] Is there a 1500w amp from Elecraft in our future??

[Thorpe, Jeffrey]

As far as I'm concerned, putting a KX2 or 3 (or any Elecraft transceiver for 
that matter) out on 1500W is insulting to Elecraft and the user. While I am 
typically a "brute-force" type of guy, it just seems like such a waste of such 
an elegant product. Now if I had to communicate with somebody on Pluto through 
crazy storms, then yeah. But here, even with these current band conditions? 
There are other ways to spend my money. Skills trump gear.

Jeff - kg7hdz

> On Jul 29, 2016, at 5:35 PM, Guy Olinger K2AV  wrote:
> 
> This rumor or a close cousin bubbles up out of the stinky mud every now and
> then. Don't believe anything until you hear it from the principal owners.
> Back to sleep.
> 
> 73, Guy K2AV
> 
>> On Friday, July 29, 2016, Jerry  wrote:
>> 
>> Greetings all,
>> 
>> 
>> 
>> I heard a rumor this afternoon that Elecraft is going to be marketing a
>> 1500
>> watt amp at approx $6000.00 very soon. The rumor mill continues with the
>> story that Elecraft is going to buy the amp. From a "unknown" European
>> company and stick Elecraft's name on the product.
>> 
>> 
>> 
>> Sounds kinda far-fetch to me, but you never know..
>> 
>> 
>> 
>> Is this a very belated "April Fools" joke??
>> 
>> 
>> 
>> Best regards,
>> 
>> 
>> 
>> Jerry, W1IE
>> 
>> 
>> 
>> __
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> 
> 
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Re: [Elecraft] Is there a 1500w amp from Elecraft in our future??

[Alan Bloom]

If Elecraft were going to re-brand and re-sell an amplifier from someone 
else, which one should they choose, and why?


Alan N1AL


On 07/29/2016 05:34 PM, Guy Olinger K2AV wrote:

This rumor or a close cousin bubbles up out of the stinky mud every now and
then. Don't believe anything until you hear it from the principal owners.
Back to sleep.

73, Guy K2AV

On Friday, July 29, 2016, Jerry  wrote:


Greetings all,



I heard a rumor this afternoon that Elecraft is going to be marketing a
1500
watt amp at approx $6000.00 very soon. The rumor mill continues with the
story that Elecraft is going to buy the amp. From a "unknown" European
company and stick Elecraft's name on the product.



Sounds kinda far-fetch to me, but you never know..



Is this a very belated "April Fools" joke??



Best regards,



Jerry, W1IE



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Re: [Elecraft] Is there a 1500w amp from Elecraft in our future??

[Wayne Burdick]

On Jul 29, 2016, at 5:20 PM, "Jerry"  wrote:

> I heard a rumor this afternoon that Elecraft is going to be marketing a 1500
> watt amp at approx $6000.00 very soon. The rumor mill continues with the
> story that Elecraft is going to buy the amp. 


Both statements are false. Demote your source :)

Wayne
N6KR



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Re: [Elecraft] Is there a 1500w amp from Elecraft in our future??

[Guy Olinger K2AV]

This rumor or a close cousin bubbles up out of the stinky mud every now and
then. Don't believe anything until you hear it from the principal owners.
Back to sleep.

73, Guy K2AV

On Friday, July 29, 2016, Jerry  wrote:

> Greetings all,
>
>
>
> I heard a rumor this afternoon that Elecraft is going to be marketing a
> 1500
> watt amp at approx $6000.00 very soon. The rumor mill continues with the
> story that Elecraft is going to buy the amp. From a "unknown" European
> company and stick Elecraft's name on the product.
>
>
>
> Sounds kinda far-fetch to me, but you never know..
>
>
>
> Is this a very belated "April Fools" joke??
>
>
>
> Best regards,
>
>
>
> Jerry, W1IE
>
>
>
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Re: [Elecraft] [ KX2] KXBT2 Charger

[w5sum]

Interesting question. In just received my kx2 today. I ordered everything EXEPT 
the kxbt2! I don't know how I missed that so I'm ordering it this weekend.
Can't wait to get on the air with it

Ronnie w5sum

MaverickNH  wrote:

>"Do not continue charging the battery if it does not recharge within the
>specified charging time. Doing so may cause the battery to become hot,
>rupture, or ignite."
>
>Does this mean the battery should not be charged more than ~2hr to full
>charge? So it shouldn't be charged overnight? 
>
>
>
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>Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] Is there a 1500w amp from Elecraft in our future??

[Jerry]

Greetings all,

 

I heard a rumor this afternoon that Elecraft is going to be marketing a 1500
watt amp at approx $6000.00 very soon. The rumor mill continues with the
story that Elecraft is going to buy the amp. From a "unknown" European
company and stick Elecraft's name on the product.

 

Sounds kinda far-fetch to me, but you never know..

 

Is this a very belated "April Fools" joke??

 

Best regards,

 

Jerry, W1IE

 

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Re: [Elecraft] [ KX2] KXBT2 Charger

[Don Wilhelm]

Yes, with Lithium batteries, follow the instructions.
If they do not recharge within the specified time, something is wrong.
Whether that specified charging time is 2 hours, or something else is of 
no consequence.  If it does not charge within the specified time, it is 
cause for investigation or replacement of the batteries.


If you wish to charge them overnight, I suggest you put them in a 
non-flammable pan outdoors (away from buildings) and power the charger 
with an extension cord.

That is for the safety of you and yours in case something bad happens.

There is a reason why shipping of lithium batteries is restricted - it 
is all a matter of safety.


Lithium batteries are generally safe if treated properly, but must be 
charged within the limits set by the manufacturer/distributor to 
maintain that safety margin.  Follow the instructions of the battery 
supplier, they have your safety in mind.


73,
Don W3FPR

On 7/29/2016 6:52 PM, MaverickNH wrote:

"Do not continue charging the battery if it does not recharge within the
specified charging time. Doing so may cause the battery to become hot,
rupture, or ignite."

Does this mean the battery should not be charged more than ~2hr to full
charge? So it shouldn't be charged overnight?



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Re: [Elecraft] [ KX2] KXBT2 Charger

[MaverickNH]

"Do not continue charging the battery if it does not recharge within the
specified charging time. Doing so may cause the battery to become hot,
rupture, or ignite."

Does this mean the battery should not be charged more than ~2hr to full
charge? So it shouldn't be charged overnight? 



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Re: [Elecraft] [KX3] KX2 transmit CW while receiving SSB?

[Don Wilhelm]

Dave,

The KX2 manual index says to look on page 44.

73,
Don W3FPR

On 7/29/2016 5:44 PM, 'David F. Reed' w5sv.d...@gmail.com [KX3] wrote:


KX2 transmit CW while receiving SSB: I seem to think this is possible, 
but don't remember how to get it going; help appreciated.  I tried the 
manual, but I must be going right past it...





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Re: [Elecraft] KX3 2m external amplifier

[Jim Brown]

That would be great, Mel.

I think I probably have about 8 brick amps of this generation carrying 
the Mirage and RF Concepts nameplate. Up to now, I've never looked at 
their spectral performance, and I don't have an easy way to do so with 
the frequency resolution of the P3, because I have only one 2M CW 
transceiver. OTOH, I could probably borrow a second one from W6GJB.


The most practical test I currently know of for IM performance is 
transmitting CW dits in the range of 35WPM and looking at the occupied 
bandwidth on a P3 with a display bandwidth on the order of 10 kHz.


73, Jim

On Fri,7/29/2016 12:57 PM, Mel Farrer wrote:
If anyone needs information on the older KLM/Mirage amplifiers, I have 
some of the original documentation when I was at KLM/Mirage in the 
'70/'80 time period. Would be glad to share.


Mel, K6KBE
One of the founders of KLM Electronics



*From:* Jim Brown 
*To:* elecraft@mailman.qth.net
*Sent:* Friday, July 29, 2016 12:15 PM
*Subject:* Re: [Elecraft] KX3 2m external amplifier

On Fri,7/29/2016 10:31 AM, Ron D'Eau Claire wrote:
> Are those capable of linear operation for SSB as the poster asked? 
The ones

> I had back then were non-linear (class C) strictly for FM/CW only.

CW is 100% modulation of a carrier by a rectangular wave, so the
harmonics associated with rise and fall times create at least as much
distortion as SSB. That distortion shows up in the form of clicky
sidebands. It's quite easy to see these sidebands on a P3. Here's some
work I did a year or two ago measuring some rigs that were available 
to me.


http://k9yc.com/P3_Spectrum_Measurements.pdf

The second file contains much of the same data, but focuses on
improvements made by firmware upgrades to the FTDX5000 a year or two ago.

http://k9yc.com/FTDX5000_Report.pdf


73, Jim K9YC

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[Elecraft] KX2 transmit CW while receiving SSB?

[David F. Reed]

KX2 transmit CW while receiving SSB: I seem to think this is possible, 
but don't remember how to get it going; help appreciated.  I tried the 
manual, but I must be going right past it...


Thanks & 72 de Dave, W5SV


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[Elecraft] KX2 VFO A Encoder

[Joe Stone (KF5WBO)]

Can anyone tell me which encoder the KX2 VFO A uses?  It's described as a
"Mechanical, sleeve bearing" encoder in the KX2 FAQ.  I'm looking for the
specific make and model.  Most of the Elecraft encoders are manufactured by
Bourns.  If you can't access the specific make and model, a close-up
photograph would be appreciated.  Is the encoder soldered to the main
circuit board?  Or does it have its own mini "daughter board" (like the K3
and KX3 VFO A encoder) which, in turn, plugs into the main circuit board
(making the encoder upgrade-able / field replaceable)?  Would someone please
measure its CPR (Counts Per Revolution)?  Set the VFO A rate to 1 Hz, note
the VFO A frequency and rotate the knob / encoder 360 degrees.  The CPR
corresponds to the increase / decrease in frequency (in Hz).

Much appreciated.

73's

Joe Stone
KF5WBO



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Re: [Elecraft] N1MM KX2 and KX3 Issues

[Richard Ferch]

Your problem is obviously with N1MM+, not with your elecraft rigs. It would
have been more appropriate to post your message to the N1MMLoggerPlus
reflector.

Be that as it may, my guess would be that you are using an inappropriate
N1MM Logger.ini (configuration) file, namely one that has been configured
for a dual-receiver K3.

In the N1MM+ Config menu, make sure the Sub Receiver Always On menu item is
not checked. It appears as if you may have this option selected; if so,
that would be what is causing Dual RX to be turned on when you change bands.

In the Configurer, make sure the SO1V radio button is selected; I suspect
you may have SO2V selected; SO2V is not really appropriate for a KX2 or
KX3. Also, make sure that the selected radio type is Elecraft KX3, not
Elecraft K3.

N1MM+ does not send ATU commands to the radio as far as I am aware. I can
only guess that your configuration is such that K3 commands for the second
receiver are being sent, and that these are having some kind of side
effects on the KX2/KX3, possibly because the second receiver's Entry window
is starting up on a different band. Using an ini file that is configured
for the correct radio in SO1V mode should resolve this.

If you wish to use N1MM+ with more than one radio (not SO2R, just different
radios at different times), you should not try to use the same ini file for
all. N1MM+ has a way to use multiple ini files for this kind of situation.
This is described in the on-line documentation at <
http://n1mmplus.hamdocs.com/tiki-index.php?page=Program+Installation+and+Setup=N1MM+Logger+Documentation#Multiple_ini_Files
>.

73,
Rich VE3KI
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Re: [Elecraft] KX3 2m external amplifier

[Mel Farrer via Elecraft]

If anyone needs information on the older KLM/Mirage amplifiers, I have some of 
the original documentation when I was at KLM/Mirage in the '70/'80 time period. 
Would be glad to share.

Mel, K6KBEOne of the founders of KLM Electronics


  From: Jim Brown 
 To: elecraft@mailman.qth.net 
 Sent: Friday, July 29, 2016 12:15 PM
 Subject: Re: [Elecraft] KX3 2m external amplifier
   
On Fri,7/29/2016 10:31 AM, Ron D'Eau Claire wrote:
> Are those capable of linear operation for SSB as the poster asked? The ones
> I had back then were non-linear (class C) strictly for FM/CW only.

CW is 100% modulation of a carrier by a rectangular wave, so the 
harmonics associated with rise and fall times create at least as much 
distortion as SSB. That distortion shows up in the form of clicky 
sidebands. It's quite easy to see these sidebands on a P3. Here's some 
work I did a year or two ago measuring some rigs that were available to me.

http://k9yc.com/P3_Spectrum_Measurements.pdf

The second file contains much of the same data, but focuses on 
improvements made by firmware upgrades to the FTDX5000 a year or two ago.

http://k9yc.com/FTDX5000_Report.pdf

73, Jim K9YC

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Re: [Elecraft] k-pod PTT emulation

[Joe Stone (KF5WBO)]

> Since the macro is sent ONLY when switch is pressed, it's not possible 
> to send a "return to receive" macro by releasing a switch on the K-Pod. 

Actually ... a macro is sent:  when a programmable switch is released after
being held for less than 500 ms; or when a programmable switch is held for
more than (>=) 500 ms.

Note:  It doesn't matter if the switch is held for 500 ms, 5 secs or 5 mins. 
The associated "hold macro" is sent after 500 ms.

Steve is looking for the ability to send a macro when a switch is first
pressed and at the time a switch is released (after 500 ms) ... neither of
which are currently supported.

73's

Joe Stone
KF5WBO



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Re: [Elecraft] KX3 2m external amplifier

[Jim Brown]

On Fri,7/29/2016 10:31 AM, Ron D'Eau Claire wrote:

Are those capable of linear operation for SSB as the poster asked? The ones
I had back then were non-linear (class C) strictly for FM/CW only.


CW is 100% modulation of a carrier by a rectangular wave, so the 
harmonics associated with rise and fall times create at least as much 
distortion as SSB. That distortion shows up in the form of clicky 
sidebands. It's quite easy to see these sidebands on a P3. Here's some 
work I did a year or two ago measuring some rigs that were available to me.


http://k9yc.com/P3_Spectrum_Measurements.pdf

The second file contains much of the same data, but focuses on 
improvements made by firmware upgrades to the FTDX5000 a year or two ago.


http://k9yc.com/FTDX5000_Report.pdf

73, Jim K9YC

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Re: [Elecraft] N1MM KX2 and KX3 Issues

[Bob N3MNT]

Are you using someone's config file? If so the commands for that
configuration may have been introduced that way.




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Re: [Elecraft] KX3 2m external amplifier

[Mel Farrer via Elecraft]

All of the Mirage amplifiers called linear were just that.  Only special order 
FM repeater amplifiers could be Class C.
Mel, K6KBE


  From: Ron D'Eau Claire 
 To: elecraft@mailman.qth.net 
 Sent: Friday, July 29, 2016 10:31 AM
 Subject: Re: [Elecraft] KX3 2m external amplifier
   
Are those capable of linear operation for SSB as the poster asked? The ones
I had back then were non-linear (class C) strictly for FM/CW only. 

73, Ron AC7AC

-Original Message-

Several years ago, we searched for and acquired vintage (30 year old) brick
amps that drive with either 2W or 10W for an output of about 150W. 
They have built-in preamps. These vintage amps were made during the 70s and
80s with the Mirage and RF Concepts name, and were built in Northern
California. They also made versions of these amps that required higher drive
levels -- 30W and 50W, I think, and they also made versions for
440 MHz. I own some of those too, which I use with the FM rig in my shack.
The Mirage name was later bought by MFJ. We found four of these vintage amps
in good condition in a few days simply by asking on two local club
reflectors. I don't remember what we paid, but I do know that we considered
them a bargain. :)

Those older amps are a great fit to an Elecraft rig with an Elecraft
transverter. We use the version that drives with 2W so that we can run the
transverter at the lowest possible power, thus reducing heat.

73, Jim K9YC


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Re: [Elecraft] k-pod PTT emulation

[pbsbarry]

Thanks Ron, I was pretty sure that was the case but then, there are some
pretty clever fellas out there.  I've programmed SWT16 on f12 and it's
just fine.  The vox  in  the k3 is so good that I usually operate with 
that.


Thanks for taking the time to answer, Ron.

73, steve AE2

On 07/29/2016 1:40 pm, Ron D'Eau Claire wrote:
Since the macro is sent ONLY when switch is pressed, it's not possible 
to

send a "return to receive" macro by releasing a switch on the K-Pod.

SWT16;
Will toggle the XMIT switch between transmit and receive.

73 Ron AC7AC

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
pbsbarry
Sent: Thursday, July 28, 2016 11:37 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] k-pod PTT emulation

Have any of you clever Elecrafters figured out a macro to emulate a 
true PTT

function (push ptt on, release, off) for the k-pod function switches?

Any ideas?

Steve, AE2G
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Re: [Elecraft] k-pod PTT emulation

[Ron D'Eau Claire]

Since the macro is sent ONLY when switch is pressed, it's not possible to
send a "return to receive" macro by releasing a switch on the K-Pod.

SWT16;
Will toggle the XMIT switch between transmit and receive.

73 Ron AC7AC 

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
pbsbarry
Sent: Thursday, July 28, 2016 11:37 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] k-pod PTT emulation

Have any of you clever Elecrafters figured out a macro to emulate a true PTT
function (push ptt on, release, off) for the k-pod function switches?

Any ideas?

Steve, AE2G
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Re: [Elecraft] KX3 2m external amplifier

[Ron D'Eau Claire]

Are those capable of linear operation for SSB as the poster asked? The ones
I had back then were non-linear (class C) strictly for FM/CW only. 

73, Ron AC7AC

-Original Message-

Several years ago, we searched for and acquired vintage (30 year old) brick
amps that drive with either 2W or 10W for an output of about 150W. 
They have built-in preamps. These vintage amps were made during the 70s and
80s with the Mirage and RF Concepts name, and were built in Northern
California. They also made versions of these amps that required higher drive
levels -- 30W and 50W, I think, and they also made versions for
440 MHz. I own some of those too, which I use with the FM rig in my shack.
The Mirage name was later bought by MFJ. We found four of these vintage amps
in good condition in a few days simply by asking on two local club
reflectors. I don't remember what we paid, but I do know that we considered
them a bargain. :)

Those older amps are a great fit to an Elecraft rig with an Elecraft
transverter. We use the version that drives with 2W so that we can run the
transverter at the lowest possible power, thus reducing heat.

73, Jim K9YC


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Re: [Elecraft] k-pod PTT emulation

[Joe Stone (KF5WBO)]

Currently, macros are associated with the trailing edge of a programmable
switch.  What you're proposing is an option through which a macro (SWT16;)
could be associated with the leading edge (and the trailing edge) of a
switch.

I like the idea.  Can't hurt to ask Elecraft.

73's

Joe Stone
KF5WBO




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Re: [Elecraft] KX3 2M External amp -- go linear!

[Rick Robinson]

>
> If you want a real linear amp try to find a Teltec amp. Check out the QST
> review. I have one each for 2,220,& 432 .



-- 
Rick, W8ZT

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Re: [Elecraft] KX3 2M External amp -- go linear!

[Joel Hallas]

While there are many amplifiers that can be pressed into service for SSB use
on 2 meters, most are really not designed for linear SSB use and have a high
level of IMD products if used for SSB. I spent a fair amount of effort
during my tenure at ARRL looking for an exception. While in general
operation in many areas, 2 meter IMD products will not likely be noticed by
casual operators due to the sparse number of operators on the band, in
contests -- when we find most 2 meter SSB and CW activity in my area -- it
is a different matter. 

The usual brick amplifier probably has a switch that says FM/SSB, but a look
behind the covers will indicate that this only changes the TR switching
time. Most have no bias arrangements and no hope to be close to linear. If
similar They would be run off the HF bands in minutes.

If you have access to QST, or are a member and can look at the archives on
line, I recommend reading the following product reviews with a close look at
IMD figures:

Aug 2010 - QST (Pg. 52)
A Pair of Mirage 2 Meter Amplifiers

Jan 2012 - QST (Pg. 54)
TE Systems 1410G 2 Meter Linear Amplifier

May 2012 - QST (Pg. 48)
Tokyo Hy-Power Labs HL-350VDX 2 Meter Linear Amplifier

The last amplifier worked really well in this regard and was a real gem.
Unfortunately, it was very expensive and the company is no longer in biz.

As to the preamps, the internal Elecraft transverters have a better noise
figure than the preamp in any brick amp that I have looked at. That means
that they are not particularly useful unless you have them mounted remotely
at the antenna and have a lossy coax run. 

My solution was inspired by an excellent QST article by Jim Klitzing, W6PQL:

Oct 2012 - QST (Pg. 32)
Solid State 1 kW Linear Amplifier for 2 Meters

Jim described an amplifier that was built around a linear amplifier module
that did all the heavy lifting. The rest of the amplifier was still more of
a project than I wanted to tackle, although I think it would work with the
transverters.

I convinced Jim to design and build an amplifier that would make my K3
competitive with the typical 100 W HF-VHF transceivers. With my great
receiver and 10 W transmitter, I was hearing people and they weren't hearing
me. By staying at the 100 W level, I could use the same power supply that my
K3 used for HF. I have been using the amplifier for years and been very
happy with it. It is very linear up to 80 W PEP out on SSB, but happy to do
CW and FM at 100 W. See the article at:

May 2013 -- QST (p. 30)
Build a Linear 2 Meter 80 W All Mode Amplifier


Jim offers PC boards, unpopulated, as well as largely complete, for
reasonable prices via his web page at w6pql.com. This amplifier is the size
of a brick, probably costs less and is a much better product, in my view. I
recommend it without reservation. 

Regards, Joel Hallas, W1ZR
Westport, CT




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[Elecraft] Macro command

[Peter]

Hi there


Is is possible to set the power level AND lock it via a macro command?

Via menu PWR SET press1 it locks (disable) the power knob

To set the power level  via a commando its:

PC065;

I Now I need the last part :-)


Peter

PC2A

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[Elecraft] N1MM KX2 and KX3 Issues

[Jim GM]

When I open N1MM when it opens it is in the S mode and when I switch to RUN 
mode the Dual RX propagates its self to all the bands. This is Annoying.

The ATU settings on all bands are completely changed when N1MM was opened. So 
this junk was also generated by N1MM. 

Both of these issue occur on the KX2 and KX3 when N1MM is opened.

I am guessing that what ever N1MM is generating is K3 commands from N1MM but I 
am not sure.


Jim K9TF

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Re: [Elecraft] [OT] Off Shore RF amplifiers

[Dave B via Elecraft]

Rick.

As others have said, your suspicions re the Chines "Auction site" PA's are largely correct.   But 
also, many "Expensive instrumentation" amps, are by their broadband nature, not that clean re 
harmonics either.  -20dBc is a common figure, if the harmonics are "in band", and somewhat better 
(but still not communications grade) if they are out of band.   Regardless of the actual technology, Bipolar, 
FET, Vacuum Tube, or TWT...

Some of the cheap PA's can be very good linearity wise, if you add filters, 
very good heat sinks, and a very capable (very good dynamic regulation) DC 
power source.  (Or, run them in Class A, and use a SMPS to power them, with 
more filtering on the DC lines!)

As in all things amplifiers, the power supply, and cooling are critical.  Skimp 
on either of them, and you'll have trouble, period!


But a note too, regarding "if there has been a noticeable change to the bands over 
the years."

Oh yes!   There are now hoards of poorly suppressed digital gadgets that 
populate the place, and between them produce a noticeable level of QRM from 
near DC to way up the spectrum.  MF/HF being particularly badly hit.

Domestic LED lighting (not the LED's themselves, but some types of switched 
mode constant current drivers.)
"In House" Power line Networking (data over the mains) devices.
Plasma TV's (the older they get, the worse they get.)
And now VDSL.  (High speed broadband over phone lines.)

Plus the gazillions of SMPS based wall warts/chargers etc, that can be 
amazingly noisy at RF when they have no load!  (Not that they are particularly 
quite when working into a load.)

Some older games console PSU's, the Wii "grey brick" types are particularly 
bad...  Don't ask me how I know..


Remember, that the EMC regulations regarding radiated noise *from* a "Product" 
are designed to protect Broadcast Reception, where the RX's are relatively deaf, and 
wanted signal levels are high.   Sadly, our interest in weak signal working using 
sensitive RX's with good antennas, result in us being unduly affected by the urban EM 
Fugg we now have to endure.

Coupled with the sad EMC lore, that "nothing radiates below 30MHz anyway", so there are few if any 
radiated emissions checks below 30MHz for "consumer" products, it's just conducted EMI that's 
tested for, and under artificial conditions too.  So, even a product that passes such a test, in practical 
use can still cause a huge problem when it has a "better antenna" (the mains wiring, or other hook 
up leads) to feed it's QRM into and get radiated!

If you do have unduly high levels of noise on the bands, run the RX from a 
battery (A KX3 here is a natural of course for this sort of test) make sure you 
have the RX connected directly to the antenna, note the noise levels, power 
down your house with the main breaker, and see what changes.

If it did markedly change for the better, then at least you have control of 
whatever is causing the trouble.   Finding it though, can take a while, unless 
you can power up each part of the house separately.  You might be surprised at 
what you may find!

If there was little to no difference, then any of your neighbours, or local 
infrastructure can be causing it, then you have a near vertical uphill struggle 
to even identify the source, let alone getting a fix.

If you want help, make a recording of the noise, with a RX in AM mode, and as wide a filter as 
possible, and make that file available to others via (for example) dropbox or similar.   If it's 
high levels of "white noise" that is definitely coming from outside your property, that 
could indicate badly balanced phone lines carrying VDSL signals, possibly linking fibre fed telco 
cabinets to users homes (common here in the UK now) but there are clues you can hunt for (narrow 
gaps or "guard bands" between different levels of noise.)

Lastly, even with high levels of local QRM, some of the new Digital modes, can 
work very well indeed, but again, the learning curve is steep, if you've only 
ever used RTTY or PSK31 in the past.

Welcome Back Rick, and 73.

Dave G0WBX.

 
~~ Original Message ~~

From: rick jones
Subject: [Elecraft] [OT] Off Shore RF amplifiers
Message-ID:
<1112441812.6599075.1469643690164.javamail.ya...@mail.yahoo.com>
Content-Type: text/plain; charset=UTF-8

First of all, I'm NOT entertaining purchasing one, I'm happy with my 100W K3. I've been 
away from the hobby for a while and I'm catching up on a few things. I'm noticing quite a 
few add on amplifiers targeting the portable crowd on the auction site. Most are 
originating from China. Many show an internal picture and I do not see any obvious forms 
of LP filtering. Is it legal to run one of these amps without FCC acceptance? If the 
answer is "no" then is an effort being made to educate people why these amps 
may be causing harm to the airwaves (in the test question pool, for instance)? Hams, 
being a notoriously thrifty lot, may be attracted to the