Re: [Elecraft] K3S SSB TX monitor

[Bob Wilson, N6TV]

On Thu, Apr 6, 2017 at 1:53 PM, Richard Lamont  wrote:

> When I'm using a voice mode with a microphone, I need the TX monitor
> audio to appear in the headphones and NOT the speakers.
>
> I need this to happen automatically, every time I plug in or unplug the
> headphones, without having to do anything else.
>
> Is there any way of configuring the rig to do precisely this?
>

It's a reasonable feature request, though I'm not aware of any other rig
that automatically turns the mic. monitor ON when you plug in headphones,
and automatically turns the mic. monitor OFF when you unplug headphones and
listen on a speaker.  Of course this is something you only want to do on
phone.  When operating CW, and maybe digital, you always want the monitor
ON, even when using speakers.

I do not understand you want to listen to both headphones and speakers at
the same time, unless you have someone else in the shack who wants to hear
what's going on  with no risk of feedback from the speakers.

Set MIC MON level to 0.  Instead of listening on the headphone jack,
connect your headphones to the LINE OUT jack, through an external headphone
amplifier or the stereo LINE IN jack on a desktop PC sound card (and plug
your headphones into the PC or headphone amp.).  Note that MIC jacks on PCs
may use stereo plugs, but they are almost always MONO inputs that cannot
handle LINE level audio well.

For convenience, set CONFIG:LIN OUT to =PHONES by tapping [1].  This allows
the AF Gain knobs on the K3 to control the line out level.  If running K3
Beta firmware 5.58 or later, tap [2] to to set the "T=" (TX monitor) level
on the LINE OUT jack (this is a new feature).  This setting is independent
of the MON knob on the front.  Tap [2] again to return to the prior menu
state.

I don't have a radio in front of me, so I can't remember what happens in
the right audio channel when CONFIG:LIN OUT is set to =PHONES.  Normally
the right channel of LINE OUT is "dead" until you turn on the SubRx by
tapping SUB.

If you don't have the SubRx, all you have to do is listen to the left
channel audio in both ears.  You'll hear the mic. monitor in LINE OUT but
not the K3 speakers.

If you have the SubRx, you may have to use a switch to split your ears to
both LINE OUT left and right channels when SUB is enabled, and left channel
only in both ears when SUB is not enabled.  You could in theory use an
external relay triggered by the DIGOUT1 pin on the K3 accessory port and a
macro assign to a function key to automatically control the headphone
switching externally *and* toggle the SUB ON or OFF simultaneously, but I
don't know of anyone who has bothered to try this.

SubRx ON  & DIGOUT1 ON:   SB1;MN019;MP001;MN255;
SubRx OFF & DIGOUT1 OFF:  SB0:MN019;MP000;MN255;

73,
Bob, N6TV
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Re: [Elecraft] reply to digest

[Dave Corsello]

For those of us who receive only the digest, there is a way to cut down 
on unnecessary and annoying extra text in our replies. In most email 
client applications, if you select text before hitting the reply button, 
only the selected text is quoted in the reply.  This message is a 
response to the digest done that way.


On 4/1/2017 8:03 PM, elecraft-requ...@mailman.qth.net wrote:

On Apr 1, 2017 09:41, "Jim Spears"  wrote:

I sure wish people would quit or never start replying to the digest form of
the reflector.  It sure results in a lot of wasted text to delete or scroll
by looking for the next real message.

Jim/N1NK


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Re: [Elecraft] K3S SSB TX monitor

[Walter Underwood]

Hmm. Might need an external volume control. I used this setup to boost the 
audio output and drive speakers with my KX3, but it might work with the K3. The 
K3 is capable of much higher audio output, but if you tap off the headphone 
audio, this will probably work.

This uses a 12V audio amp (stereo, 15W per channel) with a volume control. The 
price seems to range from $8 to $12, but it is affordable regardless.

https://observer.wunderwood.org/2017/03/04/speakers-for-my-elecraft-kx3/ 


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

> On Apr 6, 2017, at 4:39 PM, Joe Subich, W4TV  wrote:
> 
> 
>> To prevent monitor audio from the microphone from reaching the
>> speaker, while keeping it going to the headphones, and to do this
>> without operator intervention, seems a simple enough requirement.
> 
> If you do not want speaker audio when using headphones set
> CONFIG:SPRK+PH = OFF *AS DOCUMENTED IN THE OWNERS MANUAL!*.
> 
> The K3 DSP has *one output* that feeds both the headphone amplifier
> and the speaker amplifier.  There is no hardware to permit different
> audio feeds to the headphone and speakers.
> 
> 73,
> 
>   ... Joe, W4TV
> 
> 
> On 4/6/2017 6:08 PM, Richard Lamont wrote:
>> Barry,
>> 
>> Thank you. You've confirmed what I suspected: that the desired
>> functionality doesn't exist.
>> 
>> To prevent monitor audio from the microphone from reaching the speaker,
>> while keeping it going to the headphones, and to do this without
>> operator intervention, seems a simple enough requirement.
>> 
>> Having to fiddle with the monitor level after plugging or unplugging
>> headphones is a right pain. What I'm asking for seems such a no-brainer
>> I can't believe it isn't standard. Why on earth would anyone want their
>> live microphone audio routed to the speaker? It's a transceiver, not a
>> public address system.
>> 
>> 73,
>> Richard G4DYA
>> 
>> On 06/04/17 22:30, Barry Simpson wrote:
>>> Richard
>>> 
>>> I do not believe that the K3 can do what you want. The monitor is either
>>> on or off independently of whether you are listening through the speaker
>>> or headphones.
>>> 
>>> If you mainly listen through the speaker, just turn the monitor to zero
>>> and them turn it up when you wear headphones.
>>> 
>>> I think that is the only way.
>>> 
>>> 73
>>> 
>>> Barry  VK2BJ
>>> 
>>> On 7 April 2017 at 06:53, Richard Lamont >> > wrote:
>>> 
>>>My previous post might not have made it clear what I'm trying to achieve
>>>with the K3S.
>>> 
>>>For RX audio, I usually listen on speakers. These mute when I plug the
>>>headphones in. That's standard and obvious and just what I want.
>>> 
>>>When I'm using a voice mode with a microphone, I need the TX monitor
>>>audio to appear in the headphones and NOT the speakers.
>>> 
>>>I need this to happen automatically, every time I plug in or unplug the
>>>headphones, without having to do anything else.
>>> 
>>>Is there any way of configuring the rig to do precisely this?
>>> 
>>>73,
>>>Richard G4DYA
>>> 
>>> 
>>> 
>>> 
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>>>Elecraft mailing list
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>>>Help: http://mailman.qth.net/mmfaq.htm
>>>
>>>Post: mailto:Elecraft@mailman.qth.net 
>>> 
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>>>Message delivered to vk...@optusnet.com.au
>>>
>>> 
>>> 
>> 
>> 
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Re: [Elecraft] K3S SSB TX monitor

[Mike Harris]

The K3 is the only transceiver I've used with this facility. Monitor 
level is saved per mode. I have SSB = 4, CW = 10 and Data = 5.
I never notice any monitor audio on SSB, neither do I particularly feel 
the need and could just as well turn it off. Sidetone on telephones was 
an attempt to stop folks shouting. Maybe a lack of it is why you can 
hear the one sided conversations of folks talking on mobiles from across 
the street.


For me CW monitor is for sidetone and Data monitor is just a gentle 
background burble to indicate all seems to be working.


The house is pretty quiet and at nearly 69y my hearing is OK not having 
been exposed regularly to damaging noise levels. I usually use CM500 
phones anyway with CONFIG AF GAIN = LO and the AF gain pot seldom above 
9 o'clock.


Regards,

Mike VP8NO



On 06/04/2017 19:08, Richard Lamont wrote:

Barry,

Thank you. You've confirmed what I suspected: that the desired
functionality doesn't exist.

To prevent monitor audio from the microphone from reaching the speaker,
while keeping it going to the headphones, and to do this without
operator intervention, seems a simple enough requirement.

Having to fiddle with the monitor level after plugging or unplugging
headphones is a right pain. What I'm asking for seems such a no-brainer
I can't believe it isn't standard. Why on earth would anyone want their
live microphone audio routed to the speaker? It's a transceiver, not a
public address system.

73,
Richard G4DYA

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Re: [Elecraft] K3S SSB TX monitor

[Joe Subich, W4TV]

To prevent monitor audio from the microphone from reaching the
speaker, while keeping it going to the headphones, and to do this
without operator intervention, seems a simple enough requirement.


If you do not want speaker audio when using headphones set
CONFIG:SPRK+PH = OFF *AS DOCUMENTED IN THE OWNERS MANUAL!*.

The K3 DSP has *one output* that feeds both the headphone amplifier
and the speaker amplifier.  There is no hardware to permit different
audio feeds to the headphone and speakers.

73,

   ... Joe, W4TV


On 4/6/2017 6:08 PM, Richard Lamont wrote:

Barry,

Thank you. You've confirmed what I suspected: that the desired
functionality doesn't exist.

To prevent monitor audio from the microphone from reaching the speaker,
while keeping it going to the headphones, and to do this without
operator intervention, seems a simple enough requirement.

Having to fiddle with the monitor level after plugging or unplugging
headphones is a right pain. What I'm asking for seems such a no-brainer
I can't believe it isn't standard. Why on earth would anyone want their
live microphone audio routed to the speaker? It's a transceiver, not a
public address system.

73,
Richard G4DYA

On 06/04/17 22:30, Barry Simpson wrote:

Richard

I do not believe that the K3 can do what you want. The monitor is either
on or off independently of whether you are listening through the speaker
or headphones.

If you mainly listen through the speaker, just turn the monitor to zero
and them turn it up when you wear headphones.

I think that is the only way.

73

Barry  VK2BJ

On 7 April 2017 at 06:53, Richard Lamont mailto:rich...@lamont.me.uk>> wrote:

My previous post might not have made it clear what I'm trying to achieve
with the K3S.

For RX audio, I usually listen on speakers. These mute when I plug the
headphones in. That's standard and obvious and just what I want.

When I'm using a voice mode with a microphone, I need the TX monitor
audio to appear in the headphones and NOT the speakers.

I need this to happen automatically, every time I plug in or unplug the
headphones, without having to do anything else.

Is there any way of configuring the rig to do precisely this?

73,
Richard G4DYA




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Re: [Elecraft] K3S SSB TX monitor

[Bill Frantz]

You can write a macro to control the monitor level. Use the ML command.

ML (Monitor Level; GET/SET)

SET/RSP format: MLxxx; where xxx is 000-060. Applies to current 
mode (CW sidetone, voice, or data). In voice modes, applies to 
MON level, even if DVR monitor level is independent (MAIN:TX DVR).


See: 
 
for details. Setting the level to zero is one of the examples.


On 4/6/17 at 3:08 PM, rich...@lamont.me.uk (Richard Lamont) wrote:


Having to fiddle with the monitor level after plugging or unplugging
headphones is a right pain.


---
Bill Frantz|Security, like correctness, is| Periwinkle
(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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Re: [Elecraft] K3S SSB TX monitor

[Richard Lamont]

Barry,

Thank you. You've confirmed what I suspected: that the desired
functionality doesn't exist.

To prevent monitor audio from the microphone from reaching the speaker,
while keeping it going to the headphones, and to do this without
operator intervention, seems a simple enough requirement.

Having to fiddle with the monitor level after plugging or unplugging
headphones is a right pain. What I'm asking for seems such a no-brainer
I can't believe it isn't standard. Why on earth would anyone want their
live microphone audio routed to the speaker? It's a transceiver, not a
public address system.

73,
Richard G4DYA

On 06/04/17 22:30, Barry Simpson wrote:
> Richard
> 
> I do not believe that the K3 can do what you want. The monitor is either
> on or off independently of whether you are listening through the speaker
> or headphones.
> 
> If you mainly listen through the speaker, just turn the monitor to zero
> and them turn it up when you wear headphones.
> 
> I think that is the only way.
> 
> 73
> 
> Barry  VK2BJ
> 
> On 7 April 2017 at 06:53, Richard Lamont  > wrote:
> 
> My previous post might not have made it clear what I'm trying to achieve
> with the K3S.
> 
> For RX audio, I usually listen on speakers. These mute when I plug the
> headphones in. That's standard and obvious and just what I want.
> 
> When I'm using a voice mode with a microphone, I need the TX monitor
> audio to appear in the headphones and NOT the speakers.
> 
> I need this to happen automatically, every time I plug in or unplug the
> headphones, without having to do anything else.
> 
> Is there any way of configuring the rig to do precisely this?
> 
> 73,
> Richard G4DYA
> 
> 
> 
> 
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> 
> 


-- 
Richard Lamont

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[Elecraft] KX2 Matching Power Amplifier

[Hall, Nathon]

I second this. Except that said amplifier should have an additional option: a 
modular high-capacity battery pack.



Strung together, the whole ensemble would make a mini-manpack radio :)

--
Nathon Hall   VE7ETS
SOTA VE7 (British Columbia) Association Manager
h...@cotr.bc.ca


--



Date: Thu, 6 Apr 2017 09:32:23 -0400

From: "Bert Garcia N8NN" mailto:n...@earthlink.net>>

To: mailto:elecraft@mailman.qth.net>>

Subject: [Elecraft] KX2 Matching Power Amplifier

Message-ID: 
<004401d2aeda$395dfc50$ac19f4f0$@earthlink.net>

Content-Type: text/plain;charset="us-ascii"



I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a

matching RF amplifier with about 35 watts output with 5 watts in.  Include

an antenna tuner.  Same size and shape and style as the KX2.  Leave out the

SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will

save money.  80-10 meters only.  Call it the KXPA35.



Bert N8NN

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Re: [Elecraft] JT65

[Don Wilhelm]

The connections are that same to run any soundcard data modes - JT65 is 
just one of many soundcard data mode applications.


Things are a bit easier if you use an external soundcard, but it will 
work fine with the internal computer soundcard.  If you use the internal 
soundcard, be certain to turn off systems sounds so you do not transmit 
those beeps and bops over the air.  With an external soundcard, make 
certain it is *not* the default soundcard.


Connect the soundcard Line Out (or spkr) to the K3 LINE IN jack, and the 
soundcard Line In to the K3 LINE OUT jack.  You may have to switch your 
soundcard input from MIC to LINE IN.


Then you will need to connect a COM port to the K3 RS-232 input (or the 
PC connector on the P3 if you have the P3 in your station).  No real COM 
ports, use a USB to Serial Port adapter - FTDI chipset is preferred.


Those are the physical connections, and are applicable to any computer, 
Mac, Linux, or Windows.


Tell the software used for Date Modes which COM port is connected to the 
K2, and tell it which soundcard to use.  The setup stuff varies from 
application to application.


Set the K3 to DATA A data submode and MIC SEL to LINE - set the filter 
width for maximum unless you have reasons to 'home in' on a particular 
signal on the waterfall.


Adjust the K3 LINE output level to something that produces a good 
waterfall color.  You may have to also adjust the soundcard input slider 
to achieve that condition.  It is best not to exceed a K3 setting of 10 
for LINE OUT to minimize distortion.


Once you have receive going, then you can concentrate on transmit.  Set 
the K3 to TX TEST so you do not transmit RF (but all else works).
From the software application, do a transmit.  Then adjust the K3 LINE 
IN gain (MIC GAIN) and the soundcard output level to achieve 4 bars 
solid on the ALC meter with the 5th bar flashing.


That is the whole story.  It does not matter what the computer, or what 
the data mode application may be, the connections and the setup are the 
same.


I understand that the Mac has a special TRRS connector for its internal 
soundcard line in and line out, but that is totally resolved with an 
external soundcard.  For data modes, the soundcard does not have to be 
exotic, it is only for Panadapter displays with the computer that an 
expensive soundcard is needed.


73,
Don W3FPR



On 4/6/2017 5:07 PM, Richard Thorpe wrote:

What connections do I need between my K3 and my iMac computer to run JT65. 
Thank you


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Re: [Elecraft] KX2 Matching Power Amplifier

[Edward Kacura via Elecraft]

I've been using my old HF-PACKER amp I've had about 7 yrs with the KX2.
2 watts in gives me 40watts out for portable ops here in Florida.
I use a Buddipole 5Ah battery for the amp and the internal battery in the KX2.
I was on the air every day for almost a week at Flamingo in the Everglades last 
month chasing SOTA activators, never ran either battery down.
Virgil has a new mini HF-packer amp for SOTA activators out now, 35/40 watts 
out on battery.
I would buy an Elecraft small amp if they ever produced one !

Ed
N7EDK
Bradenton, Florida 

Sent from my iPhone

> On Apr 6, 2017, at 09:32, Bert Garcia N8NN  wrote:
> 
> I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
> matching RF amplifier with about 35 watts output with 5 watts in.  Include
> an antenna tuner.  Same size and shape and style as the KX2.  Leave out the
> SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will
> save money.  80-10 meters only.  Call it the KXPA35.  
> 
> Bert N8NN
> 

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Re: [Elecraft] K3S SSB TX monitor

[Barry Simpson]

Richard

I do not believe that the K3 can do what you want. The monitor is either on
or off independently of whether you are listening through the speaker or
headphones.

If you mainly listen through the speaker, just turn the monitor to zero and
them turn it up when you wear headphones.

I think that is the only way.

73

Barry  VK2BJ

On 7 April 2017 at 06:53, Richard Lamont  wrote:

> My previous post might not have made it clear what I'm trying to achieve
> with the K3S.
>
> For RX audio, I usually listen on speakers. These mute when I plug the
> headphones in. That's standard and obvious and just what I want.
>
> When I'm using a voice mode with a microphone, I need the TX monitor
> audio to appear in the headphones and NOT the speakers.
>
> I need this to happen automatically, every time I plug in or unplug the
> headphones, without having to do anything else.
>
> Is there any way of configuring the rig to do precisely this?
>
> 73,
> Richard G4DYA
>
>
>
>
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Re: [Elecraft] K3S SSB TX monitor

[Jim Brown]

On Thu,4/6/2017 1:53 PM, Richard Lamont wrote:

Is there any way of configuring the rig to do precisely this?


Yes. It's easy. In a post a few hours ago, I described the process. And 
it's in the manual. See the large tabulated description of Menu Settings.



73, Jim K9YC

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Re: [Elecraft] KX2 Matching Power Amplifier

[Jim Brown]

In an ideal world, perhaps. But much of the limit on what you can work 
with 5W is not QRM, but rather the noise in the other station's receiver 
(man-made and static) and the quality of his/her RX antennas.


I can give MANY examples of stations whose TX signal far out reach their 
RX capability. A club station active in 160M contests is hard to work 
with 1.5 kW and a full size vertical with a tower as a passive 
reflector, whereas I've worked all the W1 and W2 states except VT with 
5W on that band.  Several years ago, I had a JT65 sked with an ND 
station. He was running about 30W. and WSJT software said he was 16 dB 
below my noise (the latest WSJT-X software can decode signals as weak as 
28 dB below the noise floor). I called with barefoot at about 50W. No 
response. Over about 10 minutes, I increased my TX power in 3 dB steps 
(using the KPA500). He finally heard me at 400W.  And it's well known 
that stations in the tropics and those in summer seasons tend to have a 
lot more static than those at higher latitudes and in winter seasons.


73, Jim K9YC

On Thu,4/6/2017 1:46 PM, Ron D'Eau Claire wrote:

For
example, if everyone ran 5 W maximum you'd be able to work almost all the
stations you hear with the KX2 "barefoot".



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Re: [Elecraft] KX2 Matching Power Amplifier

[Fred Moore]

I am also using the hardrock 50, works well have the internal atu as
well, I think the kit was 479 or something like that, took about 6 hours
to build, nice kit. works well, but don't hardly turn it on 5 watts CW
gets me where I want to go 100% of the time.. Fred

Fred Moore
email: f...@fmeco.com
   f...@safes.com
phone:  321-217-8699

On 4/6/17 11:03 AM, Ron Wilcox wrote:
> sorry, it is hobby pc that makes the amplifier, here is their website, and
> it is the hardrock 50., https://www.hobbypcb.com/
>
> Today is a good day to have a Great Day!
> 73   Ron Wilcox KF7ZN
>
> On Thu, Apr 6, 2017 at 8:53 AM, Bert Garcia N8NN  wrote:
>
>> Ron – I couldn’t find the amplifier on the QRP Guys website.  Do you have
>> a link?  I bought their iambic paddle recently.
>>
>>
>>
>> Bert N8NN
>>
>>
>>
>> *From:* Ron Wilcox [mailto:rgloga...@gmail.com]
>> *Sent:* Thursday, April 6, 2017 10:29 AM
>> *To:* Irma & Linas(LY2H) 
>> *Cc:* elecraft@mailman.qth.net; n...@earthlink.net
>> *Subject:* Re: [Elecraft] KX2 Matching Power Amplifier
>>
>>
>>
>> qrp guys also makes a nice 50 watt amplifier that works great with the
>> KX2, has the cable for it, comes as kit for the fun of putting it together,
>> quality product as well
>>
>>
>> Today is a good day to have a Great Day!
>>
>> 73   Ron Wilcox KF7ZN
>>
>>
>>
>> On Thu, Apr 6, 2017 at 8:18 AM, Irma & Linas(LY2H) 
>> wrote:
>>
>> Nice idea! Before Elecraft steps-in to this PA market, I am using with
>> great success and pleasure the Chinese MiNiPa50,:)
>> AT 5-6 W in from the Kx2 it yealds clean and healthy 45-50 W output on the
>> 80-20m bands and around 40W on higher bands. 6,6A current consumption at
>> 13-14V. No 6 m , no ATU though. ( For the ATU I use the famous Elecrat T-1,
>> yes, it can stand up to 40 W , just do not tune at this power level, :)) At
>> the price of approx 150 USD it is very good value for money, I think.
>>
>> 73 de Linas LY2H
>>
>> On 2017 bal. 6, kt at 16:34 Bert Garcia N8NN  wrote:
>>
>>> I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
>>> matching RF amplifier with about 35 watts output with 5 watts in.
>> Include
>>> an antenna tuner.  Same size and shape and style as the KX2.  Leave out
>> the
>>> SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will
>>> save money.  80-10 meters only.  Call it the KXPA35.
>>>
>>> Bert N8NN
>>> __
>>> 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 irmalina...@gmail.com
>>>
>> __
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>> Message delivered to rgloga...@gmail.com
>>
>>
>>
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[Elecraft] JT65

[Richard Thorpe]

What connections do I need between my K3 and my iMac computer to run JT65. 
Thank you

K6CG
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Re: [Elecraft] K3S SSB TX monitor

[Richard Lamont]

My previous post might not have made it clear what I'm trying to achieve
with the K3S.

For RX audio, I usually listen on speakers. These mute when I plug the
headphones in. That's standard and obvious and just what I want.

When I'm using a voice mode with a microphone, I need the TX monitor
audio to appear in the headphones and NOT the speakers.

I need this to happen automatically, every time I plug in or unplug the
headphones, without having to do anything else.

Is there any way of configuring the rig to do precisely this?

73,
Richard G4DYA




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Re: [Elecraft] KX2 Matching Power Amplifier

[Ron D'Eau Claire]

Sure, every little bit might help but, IMX, power is a matter of parity. For
example, if everyone ran 5 W maximum you'd be able to work almost all the
stations you hear with the KX2 "barefoot". 

For us QRP enthusiasts the challenge is spotting good signals from OTHER QRP
stations that tells us we are likely to be heard by them. The fun is in
noting that they don't need to be locals. Sometimes signals are good at QRP
levels with DX too. Therein lies the value of the QRP "watering holes"
around the bands. Elsewhere on the bands, I look for solid *strong* signals
to call when I'm QRP, especially with a compromise antenna. 

As for going QRO, I agree with Mike; I don't get very excited about anything
less than a 10 dB increase. 

73, Ron AC7AC



-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bert
Garcia N8NN
Sent: Thursday, April 6, 2017 12:43 PM
To: 'Mike Morrow'; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX2 Matching Power Amplifier

The KX2 is recommended to operate at 5 watts and below for digital modes.
When operating QRP, you are often at the noise level on the receiving end,
especially with compromise antennas.  Any improvement, even 5 dB, will make
the difference between being heard or not.  My primary design goal for a
KXPA35 is low cost, thus I suggest a modest power level, no SWR/wattmeter, a
manual bandswitch, and any other cost savings that can be had.  Those
wanting a full gallon of 100 watts with all the cool features Elecraft has
to offer can opt for the KXPA100, a truly fine amplifier in all respects.
Rather than a fancy pair of shoes, I'm just looking for a pair of
flip-flops.

Bert N8NN

-Original Message-
From: Mike Morrow [mailto:k...@earthlink.net] 
Sent: Thursday, April 6, 2017 12:33 PM
To: n...@earthlink.net; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX2 Matching Power Amplifier


> I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a 
> matching RF amplifier with about 35 watts output with 5 watts in.

Since the KX2 runs 10 watts out, more or less, you're asking for external
gear to run only 5 dB better.  I wouldn't consider something like that for
even a moment.  The existing 100 watt amp is likely the minimum increment
that would be almost worth the trouble.

A subsequent post about using a T1 ATU on the output of a 40 watt external
amp seems ill-advised, especially for such minimal practical benefit.

I'd prefer to see an enhanced KX3HP (not KX2) with KXAT3HP capable (only
with stout 14 vdc external power) of the 35 watts you seek.  It would sell
as a unified package that is the buyer's only choice, but not as multiple
components.  Still ... the benefit for the effort would not be there.

Mike / KK5F

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Re: [Elecraft] KX2 Matching Power Amplifier

[Walter Underwood]

You just described the HF Packer Amp.

http://www.hfprojects.com/#!/miniHFPA-HF-Packer-Amp/p/80855866/category=0 


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

> On Apr 6, 2017, at 12:42 PM, Bert Garcia N8NN  wrote:
> 
> The KX2 is recommended to operate at 5 watts and below for digital modes.  
> When operating QRP, you are often at the noise level on the receiving end, 
> especially with compromise antennas.  Any improvement, even 5 dB, will make 
> the difference between being heard or not.  My primary design goal for a 
> KXPA35 is low cost, thus I suggest a modest power level, no SWR/wattmeter, a 
> manual bandswitch, and any other cost savings that can be had.  Those wanting 
> a full gallon of 100 watts with all the cool features Elecraft has to offer 
> can opt for the KXPA100, a truly fine amplifier in all respects.  Rather than 
> a fancy pair of shoes, I'm just looking for a pair of flip-flops.
> 
> Bert N8NN
> 
> -Original Message-
> From: Mike Morrow [mailto:k...@earthlink.net] 
> Sent: Thursday, April 6, 2017 12:33 PM
> To: n...@earthlink.net; elecraft@mailman.qth.net
> Subject: Re: [Elecraft] KX2 Matching Power Amplifier
> 
> 
>> I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a 
>> matching RF amplifier with about 35 watts output with 5 watts in.
> 
> Since the KX2 runs 10 watts out, more or less, you're asking for external 
> gear to run only 5 dB better.  I wouldn't consider something like that for 
> even a moment.  The existing 100 watt amp is likely the minimum increment 
> that would be almost worth the trouble.
> 
> A subsequent post about using a T1 ATU on the output of a 40 watt external 
> amp seems ill-advised, especially for such minimal practical benefit.
> 
> I'd prefer to see an enhanced KX3HP (not KX2) with KXAT3HP capable (only with 
> stout 14 vdc external power) of the 35 watts you seek.  It would sell as a 
> unified package that is the buyer's only choice, but not as multiple 
> components.  Still ... the benefit for the effort would not be there.
> 
> Mike / KK5F
> 
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Re: [Elecraft] KX2 Matching Power Amplifier

[Bert Garcia N8NN]

The KX2 is recommended to operate at 5 watts and below for digital modes.  When 
operating QRP, you are often at the noise level on the receiving end, 
especially with compromise antennas.  Any improvement, even 5 dB, will make the 
difference between being heard or not.  My primary design goal for a KXPA35 is 
low cost, thus I suggest a modest power level, no SWR/wattmeter, a manual 
bandswitch, and any other cost savings that can be had.  Those wanting a full 
gallon of 100 watts with all the cool features Elecraft has to offer can opt 
for the KXPA100, a truly fine amplifier in all respects.  Rather than a fancy 
pair of shoes, I'm just looking for a pair of flip-flops.

Bert N8NN

-Original Message-
From: Mike Morrow [mailto:k...@earthlink.net] 
Sent: Thursday, April 6, 2017 12:33 PM
To: n...@earthlink.net; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX2 Matching Power Amplifier


> I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a 
> matching RF amplifier with about 35 watts output with 5 watts in.

Since the KX2 runs 10 watts out, more or less, you're asking for external gear 
to run only 5 dB better.  I wouldn't consider something like that for even a 
moment.  The existing 100 watt amp is likely the minimum increment that would 
be almost worth the trouble.

A subsequent post about using a T1 ATU on the output of a 40 watt external amp 
seems ill-advised, especially for such minimal practical benefit.

I'd prefer to see an enhanced KX3HP (not KX2) with KXAT3HP capable (only with 
stout 14 vdc external power) of the 35 watts you seek.  It would sell as a 
unified package that is the buyer's only choice, but not as multiple 
components.  Still ... the benefit for the effort would not be there.

Mike / KK5F

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Re: [Elecraft] K3S SSB TX monitor

[Jim Brown]

Hi Richard,

There's a menu setting for SPKR + PHONES (from memory, I think that's 
what it's called) that toggles the speaker on and off. I assign that 
function to one of the soft buttons. Works great!


73, Jim K9YC

On Thu,4/6/2017 11:30 AM, Richard Lamont wrote:

It would be useful when operating SSB to be able to hear my own voice in
the headphones, but not on the speaker, where it can cause feedback.

Is there any way of configuring the rig so that when using a voice mode
with a microphone, the TX monitor feeds the headphones but not the
speaker(s)?

73,
Richard G4DYA

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Re: [Elecraft] K3S SSB TX monitor

[Don Wilhelm]

Richard,

Certainly, turn the MON to zero - either manually or with a Macro.

73,
Don W3FPR

On 4/6/2017 2:30 PM, Richard Lamont wrote:


Is there any way of configuring the rig so that when using a voice mode
with a microphone, the TX monitor feeds the headphones but not the
speaker(s)?

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[Elecraft] K3S SSB TX monitor

[Richard Lamont]

It would be useful when operating SSB to be able to hear my own voice in
the headphones, but not on the speaker, where it can cause feedback.

Is there any way of configuring the rig so that when using a voice mode
with a microphone, the TX monitor feeds the headphones but not the
speaker(s)?

73,
Richard G4DYA

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Re: [Elecraft] KX2 Matching Power Amplifier

[Irma & Linas(LY2H)]

No it doesn't, at least for the engineers who created this little tuner.
Please check the Elecraft T-1 FAQ, :)

*Q:  What’s the highest power level the T1 can handle?  Can I use my 30-40
watt amplifier?*

*A:* The T1 is rated at 20 W SSB/CW and 10 W FM/AM/digital modes. However,
to ensure that the design is rugged, we did stress-testing at 100 watts
(very briefly–don’t do this on purpose). Things got very warm during these
tests, but no damage occurred. We also used the T1 for an extended period
in SSB and CW modes at 40 watts to simulate the emergency use of
backpacking amplifiers. Again, this did not damage the tuner. But just to
be safe, we’re sticking with our 20 W rating."

73 Linas LY2H
On <<<2017 bal. 6, kt at 19:34 Mike Morrow  wrote:

>
>
>
> A subsequent post about using a T1 ATU on the output of a 40 watt external
> amp seems ill-advised, especially for such minimal practical benefit.
>
>
>
> Mike / KK5F>>
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Re: [Elecraft] KX2 Matching Power Amplifier

[Ron Wilcox]

Well glad it is going to work for you. I bought it and the tuner for mobile
work. I did not want to spend a fortune as my mobile time is fairly random,
but found that my wonderful KX2 was just not being heard from the car when
I tried to put out counties or make contacts. I could hear a lot but was
not being heard. Good luck.

Today is a good day to have a Great Day!
73   Ron Wilcox KF7ZN

On Thu, Apr 6, 2017 at 10:54 AM, Bert Garcia N8NN 
wrote:

> Ron – Found it!  Very impressive amplifier for my KX2.  Guess I’ll build
> one while waiting for the Elecraft KXPA35 (or maybe the KXPA50…?).  The
> Hardrock 50 has a lot more features than I was looking for, but they are
> all useful.  Thanks for the help.  Again, very impressive!
>
>
>
> Bert N8NN
>
>
>
> *From:* Ron Wilcox [mailto:rgloga...@gmail.com]
> *Sent:* Thursday, April 6, 2017 11:04 AM
> *To:* n...@earthlink.net; Elecraft@mailman.qth.net
> *Subject:* Re: [Elecraft] KX2 Matching Power Amplifier
>
>
>
> sorry, it is hobby pc that makes the amplifier, here is their website, and
> it is the hardrock 50., https://www.hobbypcb.com/
>
>
> Today is a good day to have a Great Day!
>
> 73   Ron Wilcox KF7ZN
>
>
>
> On Thu, Apr 6, 2017 at 8:53 AM, Bert Garcia N8NN 
> wrote:
>
> Ron – I couldn’t find the amplifier on the QRP Guys website.  Do you have
> a link?  I bought their iambic paddle recently.
>
>
>
> Bert N8NN
>
>
>
> *From:* Ron Wilcox [mailto:rgloga...@gmail.com]
> *Sent:* Thursday, April 6, 2017 10:29 AM
> *To:* Irma & Linas(LY2H) 
> *Cc:* elecraft@mailman.qth.net; n...@earthlink.net
> *Subject:* Re: [Elecraft] KX2 Matching Power Amplifier
>
>
>
> qrp guys also makes a nice 50 watt amplifier that works great with the
> KX2, has the cable for it, comes as kit for the fun of putting it together,
> quality product as well
>
>
> Today is a good day to have a Great Day!
>
> 73   Ron Wilcox KF7ZN
>
>
>
> On Thu, Apr 6, 2017 at 8:18 AM, Irma & Linas(LY2H) 
> wrote:
>
> Nice idea! Before Elecraft steps-in to this PA market, I am using with
> great success and pleasure the Chinese MiNiPa50,:)
> AT 5-6 W in from the Kx2 it yealds clean and healthy 45-50 W output on the
> 80-20m bands and around 40W on higher bands. 6,6A current consumption at
> 13-14V. No 6 m , no ATU though. ( For the ATU I use the famous Elecrat T-1,
> yes, it can stand up to 40 W , just do not tune at this power level, :)) At
> the price of approx 150 USD it is very good value for money, I think.
>
> 73 de Linas LY2H
>
> On 2017 bal. 6, kt at 16:34 Bert Garcia N8NN  wrote:
>
> > I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
> > matching RF amplifier with about 35 watts output with 5 watts in.
> Include
> > an antenna tuner.  Same size and shape and style as the KX2.  Leave out
> the
> > SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will
> > save money.  80-10 meters only.  Call it the KXPA35.
> >
> > Bert N8NN
> > __
> > 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 irmalina...@gmail.com
> >
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> Message delivered to rgloga...@gmail.com
>
>
>
>
>
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[Elecraft] Lightning can effect the ionosphere

[kev...@coho.net]

I just read about an ELVE above the Czech Republic.  ELVE - Emissions of 
Light and Very Low Frequency Perturbations. http://spaceweather.com/ has 
an article and an image.  The phenomenon creates a red doughnut shaped 
ring lasting less than 0.001 seconds.  It does require a more forceful 
lightning stroke than normal: 150-350 kiloAmps; approximately ten times 
the normal strike.


With the recent talk of antenna protection from a local strike I thought 
this reference was timely.


Kevin.  KD5ONS

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Re: [Elecraft] KX2 Matching Power Amplifier

[Bert Garcia N8NN]

Ron – Found it!  Very impressive amplifier for my KX2.  Guess I’ll build one 
while waiting for the Elecraft KXPA35 (or maybe the KXPA50…?).  The Hardrock 50 
has a lot more features than I was looking for, but they are all useful.  
Thanks for the help.  Again, very impressive!

 

Bert N8NN

 

From: Ron Wilcox [mailto:rgloga...@gmail.com] 
Sent: Thursday, April 6, 2017 11:04 AM
To: n...@earthlink.net; Elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX2 Matching Power Amplifier

 

sorry, it is hobby pc that makes the amplifier, here is their website, and it 
is the hardrock 50., https://www.hobbypcb.com/   




Today is a good day to have a Great Day!

73   Ron Wilcox KF7ZN

 

On Thu, Apr 6, 2017 at 8:53 AM, Bert Garcia N8NN mailto:n...@earthlink.net> > wrote:

Ron – I couldn’t find the amplifier on the QRP Guys website.  Do you have a 
link?  I bought their iambic paddle recently.

 

Bert N8NN

 

From: Ron Wilcox [mailto:rgloga...@gmail.com  ] 
Sent: Thursday, April 6, 2017 10:29 AM
To: Irma & Linas(LY2H) mailto:irmalina...@gmail.com> >
Cc: elecraft@mailman.qth.net  ; 
n...@earthlink.net  
Subject: Re: [Elecraft] KX2 Matching Power Amplifier

 

qrp guys also makes a nice 50 watt amplifier that works great with the KX2, has 
the cable for it, comes as kit for the fun of putting it together, quality 
product as well




Today is a good day to have a Great Day!

73   Ron Wilcox KF7ZN

 

On Thu, Apr 6, 2017 at 8:18 AM, Irma & Linas(LY2H) mailto:irmalina...@gmail.com> > wrote:

Nice idea! Before Elecraft steps-in to this PA market, I am using with
great success and pleasure the Chinese MiNiPa50,:)
AT 5-6 W in from the Kx2 it yealds clean and healthy 45-50 W output on the
80-20m bands and around 40W on higher bands. 6,6A current consumption at
13-14V. No 6 m , no ATU though. ( For the ATU I use the famous Elecrat T-1,
yes, it can stand up to 40 W , just do not tune at this power level, :)) At
the price of approx 150 USD it is very good value for money, I think.

73 de Linas LY2H

On 2017 bal. 6, kt at 16:34 Bert Garcia N8NN mailto:n...@earthlink.net> > wrote:

> I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
> matching RF amplifier with about 35 watts output with 5 watts in.  Include
> an antenna tuner.  Same size and shape and style as the KX2.  Leave out the
> SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will
> save money.  80-10 meters only.  Call it the KXPA35.
>
> Bert N8NN
> __
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Re: [Elecraft] Amplifier

[Josh]

Which connectors? What's the anticipated problem? Please explain. Tnx

73
Josh W6XU

Sent from my mobile device

> On Apr 6, 2017, at 9:28 AM, Dennis Watkins  wrote:
> 
> I would suggest that a redesign on the K2/K3s would be a starting point.  The 
> cheesy connectors on the back of the k3 will not stand up to a strong field  
> from a 1.5kw amp with the tower  mounted to the house. To much leakage for me.
> 

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Re: [Elecraft] KX2 Matching Power Amplifier

[Mike Morrow]

> I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
> matching RF amplifier with about 35 watts output with 5 watts in.

Since the KX2 runs 10 watts out, more or less, you're asking for external gear 
to run only 5 dB better.  I wouldn't consider something like that for even a 
moment.  The existing 100 watt amp is likely the minimum increment that would 
be almost worth the trouble.

A subsequent post about using a T1 ATU on the output of a 40 watt external amp 
seems ill-advised, especially for such minimal practical benefit.

I'd prefer to see an enhanced KX3HP (not KX2) with KXAT3HP capable (only with 
stout 14 vdc external power) of the 35 watts you seek.  It would sell as a 
unified package that is the buyer's only choice, but not as multiple 
components.  Still ... the benefit for the effort would not be there.

Mike / KK5F
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[Elecraft] Amplifier

[Dennis Watkins]

I would suggest that a redesign on the K2/K3s would be a starting 
point.  The cheesy connectors on the back of the k3 will not stand up to 
a strong field  from a 1.5kw amp with the tower  mounted to the house. 
To much leakage for me.

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Re: [Elecraft] KX2 Matching Power Amplifier

[Ron Wilcox]

sorry, it is hobby pc that makes the amplifier, here is their website, and
it is the hardrock 50., https://www.hobbypcb.com/

Today is a good day to have a Great Day!
73   Ron Wilcox KF7ZN

On Thu, Apr 6, 2017 at 8:53 AM, Bert Garcia N8NN  wrote:

> Ron – I couldn’t find the amplifier on the QRP Guys website.  Do you have
> a link?  I bought their iambic paddle recently.
>
>
>
> Bert N8NN
>
>
>
> *From:* Ron Wilcox [mailto:rgloga...@gmail.com]
> *Sent:* Thursday, April 6, 2017 10:29 AM
> *To:* Irma & Linas(LY2H) 
> *Cc:* elecraft@mailman.qth.net; n...@earthlink.net
> *Subject:* Re: [Elecraft] KX2 Matching Power Amplifier
>
>
>
> qrp guys also makes a nice 50 watt amplifier that works great with the
> KX2, has the cable for it, comes as kit for the fun of putting it together,
> quality product as well
>
>
> Today is a good day to have a Great Day!
>
> 73   Ron Wilcox KF7ZN
>
>
>
> On Thu, Apr 6, 2017 at 8:18 AM, Irma & Linas(LY2H) 
> wrote:
>
> Nice idea! Before Elecraft steps-in to this PA market, I am using with
> great success and pleasure the Chinese MiNiPa50,:)
> AT 5-6 W in from the Kx2 it yealds clean and healthy 45-50 W output on the
> 80-20m bands and around 40W on higher bands. 6,6A current consumption at
> 13-14V. No 6 m , no ATU though. ( For the ATU I use the famous Elecrat T-1,
> yes, it can stand up to 40 W , just do not tune at this power level, :)) At
> the price of approx 150 USD it is very good value for money, I think.
>
> 73 de Linas LY2H
>
> On 2017 bal. 6, kt at 16:34 Bert Garcia N8NN  wrote:
>
> > I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
> > matching RF amplifier with about 35 watts output with 5 watts in.
> Include
> > an antenna tuner.  Same size and shape and style as the KX2.  Leave out
> the
> > SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will
> > save money.  80-10 meters only.  Call it the KXPA35.
> >
> > Bert N8NN
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft@mailman.qth.net
> >
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> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to irmalina...@gmail.com
> >
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>
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Re: [Elecraft] KX2 Matching Power Amplifier

[Bert Garcia N8NN]

I’m hoping Elecraft will make the KXPA35 a bare-bones amplifier and leave out 
the band data capability to save cost.  An antenna tuner is needed, but all the 
other do-dads drive up the cost and pretty soon you will have a KXPA100(minus) 
rather than a true KX2 companion.

 

I’m told the KXPA100 uses an rf sensor for band switching with the KX2.

 

Bert N8NN

 

From: Irma & Linas(LY2H) [mailto:irmalina...@gmail.com] 
Sent: Thursday, April 6, 2017 10:35 AM
To: Ron Wilcox 
Cc: elecraft@mailman.qth.net; n...@earthlink.net
Subject: Re: [Elecraft] KX2 Matching Power Amplifier

 

It would be a good idea if the KX2 could be modified in order to get the Band 
Data signal from the ACC socket, for as it is now it only provides with the Key 
Out signal.  I don't know though how  the Band info is arranged in the 
Kx2/KXPA100 combo, may be some RF sensor? 

 

73 Linas LY2H

 

 

On 2017 bal. 6, kt at 17:29 Ron Wilcox mailto:rgloga...@gmail.com> > wrote:

qrp guys also makes a nice 50 watt amplifier that works great with the KX2, has 
the cable for it, comes as kit for the fun of putting it together, quality 
product as well




Today is a good day to have a Great Day!

73   Ron Wilcox KF7ZN

 

On Thu, Apr 6, 2017 at 8:18 AM, Irma & Linas(LY2H) mailto:irmalina...@gmail.com> > wrote:

Nice idea! Before Elecraft steps-in to this PA market, I am using with
great success and pleasure the Chinese MiNiPa50,:)
AT 5-6 W in from the Kx2 it yealds clean and healthy 45-50 W output on the
80-20m bands and around 40W on higher bands. 6,6A current consumption at
13-14V. No 6 m , no ATU though. ( For the ATU I use the famous Elecrat T-1,
yes, it can stand up to 40 W , just do not tune at this power level, :)) At
the price of approx 150 USD it is very good value for money, I think.

73 de Linas LY2H

On 2017 bal. 6, kt at 16:34 Bert Garcia N8NN mailto:n...@earthlink.net> > wrote:

> I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
> matching RF amplifier with about 35 watts output with 5 watts in.  Include
> an antenna tuner.  Same size and shape and style as the KX2.  Leave out the
> SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will
> save money.  80-10 meters only.  Call it the KXPA35.
>
> Bert N8NN
> __
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Re: [Elecraft] KX2 Matching Power Amplifier

[Irma & Linas(LY2H)]

It would be a good idea if the KX2 could be modified in order to get the
Band Data signal from the ACC socket, for as it is now it only provides
with the Key Out signal.  I don't know though how  the Band info is
arranged in the Kx2/KXPA100 combo, may be some RF sensor?

73 Linas LY2H


On 2017 bal. 6, kt at 17:29 Ron Wilcox  wrote:

> qrp guys also makes a nice 50 watt amplifier that works great with the
> KX2, has the cable for it, comes as kit for the fun of putting it together,
> quality product as well
>
> Today is a good day to have a Great Day!
> 73   Ron Wilcox KF7ZN
>
> On Thu, Apr 6, 2017 at 8:18 AM, Irma & Linas(LY2H) 
> wrote:
>
> Nice idea! Before Elecraft steps-in to this PA market, I am using with
> great success and pleasure the Chinese MiNiPa50,:)
> AT 5-6 W in from the Kx2 it yealds clean and healthy 45-50 W output on the
> 80-20m bands and around 40W on higher bands. 6,6A current consumption at
> 13-14V. No 6 m , no ATU though. ( For the ATU I use the famous Elecrat T-1,
> yes, it can stand up to 40 W , just do not tune at this power level, :)) At
> the price of approx 150 USD it is very good value for money, I think.
>
> 73 de Linas LY2H
>
> On 2017 bal. 6, kt at 16:34 Bert Garcia N8NN  wrote:
>
> > I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
> > matching RF amplifier with about 35 watts output with 5 watts in.
> Include
> > an antenna tuner.  Same size and shape and style as the KX2.  Leave out
> the
> > SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will
> > save money.  80-10 meters only.  Call it the KXPA35.
> >
> > Bert N8NN
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> >
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> > Message delivered to irmalina...@gmail.com
> >
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Re: [Elecraft] RS232 port selection

[bill steffey]

while i have been successful using MicroHam  MK2R's virtual serial 
ports for upgrading, AFTER tuning the port CAT connection emulation 
to none from Elecraft K3..Now I use a serial hard switch and 
flipping the P3/K3 from the microham  to another hard serial poert at the CPU.

Joe ( microham) emphatically tell us to NOT to upgrade thru the MicroHam
It's so great when this all works as intended.

bill

At 07:13 AM 4/5/2017, Don Wilhelm wrote:

Alan,

Yes, turning LP-Bridge off and connecting K3 Utility the the COM 
port that is directly connected to the K3 is not only reasonable, 
but necessary.


73,
Don W3FPR


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Re: [Elecraft] KX2 Matching Power Amplifier

[Ron Wilcox]

qrp guys also makes a nice 50 watt amplifier that works great with the KX2,
has the cable for it, comes as kit for the fun of putting it together,
quality product as well

Today is a good day to have a Great Day!
73   Ron Wilcox KF7ZN

On Thu, Apr 6, 2017 at 8:18 AM, Irma & Linas(LY2H) 
wrote:

> Nice idea! Before Elecraft steps-in to this PA market, I am using with
> great success and pleasure the Chinese MiNiPa50,:)
> AT 5-6 W in from the Kx2 it yealds clean and healthy 45-50 W output on the
> 80-20m bands and around 40W on higher bands. 6,6A current consumption at
> 13-14V. No 6 m , no ATU though. ( For the ATU I use the famous Elecrat T-1,
> yes, it can stand up to 40 W , just do not tune at this power level, :)) At
> the price of approx 150 USD it is very good value for money, I think.
>
> 73 de Linas LY2H
>
> On 2017 bal. 6, kt at 16:34 Bert Garcia N8NN  wrote:
>
> > I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
> > matching RF amplifier with about 35 watts output with 5 watts in.
> Include
> > an antenna tuner.  Same size and shape and style as the KX2.  Leave out
> the
> > SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will
> > save money.  80-10 meters only.  Call it the KXPA35.
> >
> > Bert N8NN
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> > Message delivered to irmalina...@gmail.com
> >
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Re: [Elecraft] KX2 Matching Power Amplifier

[Irma & Linas(LY2H)]

Nice idea! Before Elecraft steps-in to this PA market, I am using with
great success and pleasure the Chinese MiNiPa50,:)
AT 5-6 W in from the Kx2 it yealds clean and healthy 45-50 W output on the
80-20m bands and around 40W on higher bands. 6,6A current consumption at
13-14V. No 6 m , no ATU though. ( For the ATU I use the famous Elecrat T-1,
yes, it can stand up to 40 W , just do not tune at this power level, :)) At
the price of approx 150 USD it is very good value for money, I think.

73 de Linas LY2H

On 2017 bal. 6, kt at 16:34 Bert Garcia N8NN  wrote:

> I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
> matching RF amplifier with about 35 watts output with 5 watts in.  Include
> an antenna tuner.  Same size and shape and style as the KX2.  Leave out the
> SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will
> save money.  80-10 meters only.  Call it the KXPA35.
>
> Bert N8NN
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Re: [Elecraft] Amber display for the K2?

[Harry Yingst via Elecraft]

I have a Pace de-soldering tool so taking off the display is not really an 
issue,
but agreed it would have been easier before the display was installed.


As for the diffuser, If needed I have a CNC mini mill so I could cut a piece of 
Plexiglass and I have
a nice sample pack of photography gel filters that include many colors and some 
various defusing films.


I was trying to avoid having to build one from scratch, That being saig I may 
just use it as is for a while.
After all the face of the K2 is half grey so it does not quite match the K3 as 
it is.


Thank you


From: David Woolley 
To: elecraft@mailman.qth.net 
Sent: Thursday, April 6, 2017 5:25 AM
Subject: Re: [Elecraft] Amber display for the K2?



I'd never really thought about the colour, but I think it is basically 

the natural colour of the combination of liquid crystal and polariser. 

It's not the narrowband green that you would get with a green LED.


Especially if you add in the fact that white "LED"s are really narrow 

band blue LEDs with broadband yellow phosphors, so are not peaking in 

the green, natural variations in colour vision, or colour vision 

defects, could easily cause the colour to be treated as a yellowish 

amber, rather than a reddish green.


I would have thought using green LEDs would have been a more efficient 

use of precious milliamps.


The display is just a seven segment array and has a manufacturer's part 

number, although it is possible it is end of line.  I don't think it is 

custom, or at least not at the time of the original design.


The real problems with making the change are that the LED's are 

integrated into the diffuser and the diffuser is behind the, unsocketed, 

display.  I doubt you could change the colour, except before the first 

build, without destroying the LCD panel.  It is also possible that the 

diffuser assembly is difficult to source; there is no manufacturer's 

part number for that.


-- 

David Woolley K2 06123
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[Elecraft] KX2 Matching Power Amplifier

[Bert Garcia N8NN]

I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
matching RF amplifier with about 35 watts output with 5 watts in.  Include
an antenna tuner.  Same size and shape and style as the KX2.  Leave out the
SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will
save money.  80-10 meters only.  Call it the KXPA35.  

Bert N8NN
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[Elecraft] KPA500/KAT500 For Sale

[Richard Thorne]

I have a KPA500/KAT500 for sale.

Includes interface cable that goes between both units and a USB/serial 
cable for each unit.  I have the original shipping boxes.


$2300 shipped USA only.  I accept paypal add 3%.

More info here: https://swap.qth.com/view_ad.php?counter=1320456

Rich - N5ZC


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Re: [Elecraft] Amber display for the K2?

[David Woolley]

I'd never really thought about the colour, but I think it is basically 
the natural colour of the combination of liquid crystal and polariser. 
It's not the narrowband green that you would get with a green LED.


Especially if you add in the fact that white "LED"s are really narrow 
band blue LEDs with broadband yellow phosphors, so are not peaking in 
the green, natural variations in colour vision, or colour vision 
defects, could easily cause the colour to be treated as a yellowish 
amber, rather than a reddish green.


I would have thought using green LEDs would have been a more efficient 
use of precious milliamps.


The display is just a seven segment array and has a manufacturer's part 
number, although it is possible it is end of line.  I don't think it is 
custom, or at least not at the time of the original design.


The real problems with making the change are that the LED's are 
integrated into the diffuser and the diffuser is behind the, unsocketed, 
display.  I doubt you could change the colour, except before the first 
build, without destroying the LCD panel.  It is also possible that the 
diffuser assembly is difficult to source; there is no manufacturer's 
part number for that.


--
David Woolley K2 06123

On 05/04/17 22:15, Don Wilhelm wrote:

Tom,

The LCD display on the K2 has "been what it was" from the beginning
(even for Field Test units).
The backlighting is white (LEDs, not incandescent), but the color of the
actual display is green when backlighted.  Actually, it is green when
frontlighted (without the backlight) as well, but more gray than green.

There is no amber LCD for the K2, never has been.  I think some posters
confused K2 with the KX2 (which does have an amber LCD - same LCD as the
K3/K3S and the KX3).

The LCD display is a custom display, so duplicating that custom display
for someone who wants an amber display would be quite an expensive
proposition.  In other words, an amber LCD for the K2 is not practical.




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Re: [Elecraft] Amplifier wishes

[Kjeld Holm]

Agree! 

Vy 73 de OZ1CCM, Kjeld

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Walter
Underwood
Sent: 5. april 2017 22:45
To: Elecraft List
Subject: Re: [Elecraft] Amplifier wishes

That could be handy. The bypass circuit could include a sensor for a lower
range (0.1 to 200W).

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

> On Apr 5, 2017, at 1:38 PM, Doug Hensley  wrote:
> 
> It might not be possible but I'd like to see one with an on-board watt
meter that can also monitor just the K3 by itself when the amp is turned
off.  I'm not opposed to the requirement that it be turned on to make that
watt meter work but either way, an on-board watt meter & SWR bridge would
simplify watt meter requirements for whole K3 station.
> 
> 
> I enjoy the list.  Cheers,
> 
> 
> Doug W5JV
> 
> 
> 
> 
> 
> 
> 
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