Re: [Elecraft] Amplifier thoughts

[Chris Tate - N6WM]

Perhaps an installable option would satisfy all...  

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John 
Marvin
Sent: Tuesday, March 28, 2017 9:12 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Amplifier thoughts

Put me down as a vote against a built-in antenna tuner. I prefer a separate 
external tuner that integrates well with the amplifier. It allows for a lot 
more configuration flexibility.

73
John
AC0ZG

On 3/28/2017 5:00 PM, Paul Van Dyke wrote:
> Ralph Parker said my list.
>
> 1500w output, 160 - 6m.
> 2 inputs.
> 4  outputs (Manual switching is OK).
> Built-in antenna tuner (good for 3:1 SWR).
> Reasonably quiet fans.
> Separate p/s, or remote control head (space considerations.  :-)
>
> Paul. KB9AVO​
>
> On Mar 28, 2017 4:40 PM, "Ralph Parker"  wrote:
>
>> I better post this before I'm too late.
>>
>> I'd like:
>> All the features of my KPA500, plus
>> 1500w output, 160 - 6m.
>> 2 inputs.
>> 2 outputs (or more. Manual switching is OK).
>> Built-in antenna tuner (good for 3:1 SWR).
>> Reasonably quiet fans.
>> Separate p/s, or remote control head (space considerations).
>> (I understand the difficulty of getting high power from the p/s 
>> to the
>> PA.)
>> I don't expect to carry it around, so weight is not a problem for me.
>> Expeditions can use the KPA500 :-)
>>
>> When this amp is available, I'll sell amplifiers Ac and Am and buy one.
>> I'm keeping my KPA-500!
>>
>> Ralph, VE7XF
>>
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> jm...@themarvins.org

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Re: [Elecraft] K3/K3s; Digital modes, specifically DV

[Richard Fjeld]

There are several FreeDV videos on YouTube.  Here is one that is a quick 
start guide.  I don't know if there are restrictions for posting links.

https://www.youtube.com/watch?v=zijJ556cs08

Dick, n0ce



On 3/28/2017 8:00 PM, Matt Zilmer wrote:
> I loaded FreeDV today, on an Ubuntu i5-64bit laptop. It works quite 
> well.  I heard no calls on 14.236 MHZ, but the receive function is 
> working.  I'm having the usual fun setting up PTT, but it will come 
> along over time.
>
> Tried doing the same thing on the Windoze 7-64 box, and Panda AV 
> decided it was a virus and sidetracked it, meaning it IS a virus.   
> That would be the installer program.  Has anyone else had this 
> problem?  Just curious. I've had other programs trigger Panda to flush 
> them, but nothing like this.
>
> Thanks and 73,
>
> matt W6NIA
>
>
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Re: [Elecraft] Amplifier thoughts

[John Marvin]

Put me down as a vote against a built-in antenna tuner. I prefer a 
separate external tuner that integrates well with the amplifier. It 
allows for a lot more configuration flexibility.


73
John
AC0ZG

On 3/28/2017 5:00 PM, Paul Van Dyke wrote:

Ralph Parker said my list.

1500w output, 160 - 6m.
2 inputs.
4  outputs (Manual switching is OK).
Built-in antenna tuner (good for 3:1 SWR).
Reasonably quiet fans.
Separate p/s, or remote control head (space considerations.  :-)

Paul. KB9AVO​

On Mar 28, 2017 4:40 PM, "Ralph Parker"  wrote:


I better post this before I'm too late.

I'd like:
All the features of my KPA500, plus
1500w output, 160 - 6m.
2 inputs.
2 outputs (or more. Manual switching is OK).
Built-in antenna tuner (good for 3:1 SWR).
Reasonably quiet fans.
Separate p/s, or remote control head (space considerations).
(I understand the difficulty of getting high power from the p/s to the
PA.)
I don't expect to carry it around, so weight is not a problem for me.
Expeditions can use the KPA500 :-)

When this amp is available, I'll sell amplifiers Ac and Am and buy one.
I'm keeping my KPA-500!

Ralph, VE7XF

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Re: [Elecraft] K3S and Winlink

[Barry]

Tom,
I'm not sure which Winlink software you are running, but it should 
work. Check to see that you have VOX on so that when you start to send 
tone the radio goes into transmit. If that is OK, you may need to tell 
your software to use software control for PTT.


73,
K3NDM
Barry

-- Original Message --
From: "Tom S Bingham" 
To: elecraft@mailman.qth.net
Sent: 3/28/2017 9:25:09 PM
Subject: [Elecraft] K3S and Winlink

I have installed the Winlink software but I cannot place my K3S into 
transmit when using the Winmor protocol.  The channel selection feature 
changes frequencies on the rig properly.  And, when I place the K3S 
into transmit manually, the modem tones cause ALC to register.


As a side note, Fldigi works fine.  Both Winlink and Fldigi are set to 
the same COMM port and the K3S is in USB mode with under CONFIG:RS232.  
Fldigi is not running when I use the Winlink software.  I use the 
Elecraft supplied KUSB cable between the computer and the K3S.


Can anyone give me a clue?

Thanks!
Tom

-- Tom Bingham WB7EUX
http://www.wb7eux.net/
SKCC 9833S
NAQCC 6346

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[Elecraft] K3S and Winlink

[Tom S Bingham]

I have installed the Winlink software but I cannot place my K3S into 
transmit when using the Winmor protocol.  The channel selection feature 
changes frequencies on the rig properly.  And, when I place the K3S into 
transmit manually, the modem tones cause ALC to register.


As a side note, Fldigi works fine.  Both Winlink and Fldigi are set to 
the same COMM port and the K3S is in USB mode with under CONFIG:RS232.  
Fldigi is not running when I use the Winlink software.  I use the 
Elecraft supplied KUSB cable between the computer and the K3S.


Can anyone give me a clue?

Thanks!
Tom

--
Tom Bingham WB7EUX
http://www.wb7eux.net/
SKCC 9833S
NAQCC 6346

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Re: [Elecraft] K3/K3s; Digital modes, specifically DV

[Matt Zilmer]

I loaded FreeDV today, on an Ubuntu i5-64bit laptop. It works quite 
well.  I heard no calls on 14.236 MHZ, but the receive function is 
working.  I'm having the usual fun setting up PTT, but it will come 
along over time.


Tried doing the same thing on the Windoze 7-64 box, and Panda AV decided 
it was a virus and sidetracked it, meaning it IS a virus.   That would 
be the installer program.  Has anyone else had this problem?  Just 
curious. I've had other programs trigger Panda to flush them, but 
nothing like this.


Thanks and 73,

matt W6NIA


On 3/27/2017 11:10 AM, Richard Fjeld wrote:

Greetings to all,

The K3/K3s is an excellent radio for digital modes due to the ease of
interfacing with a computer if desired.  A computer is not even needed
for some digital modes, and I have tried that successfully.

I have mentioned in the past that I had tried the free software for
digital voice on HF called 'FreeDV'.  I had worked a Canadian ham a few
times using it and he has been keeping in contact with me via email
encouraging me to get back into it.  I am starting to get up to date
again, and I found accurate reviews of it on
http://www.eham.net/reviews/detail/11016   by K2RWF and WA0TPN.  I think
you will find the reviews interesting and informative.

Notice that the reviews seem to be either at, or near, 5/5 or 0/5. I
think both of the reviews I mentioned answer why that is.  I will keep
my experience mute and let you glean aye/nay from the reviews. Whether
you approve of digital voice or not, the K3/K3s is a natural for using
it, and it's fun.  (As always with digital modes, be kind to your finals.)

FYI,
Dick, n0ce




--
"A delay is better than a disaster."
-- unknonwn

Matt Zilmer, W6NIA
[Shiraz]

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Re: [Elecraft] KX3 - AFSK RTTY

[jh3sif]

Thanks, Don.
I checked the transmitted signal with other TRX. No second harmonic was 
detected.

Yes, cocoaModem supports sound card RTTY. iMic is a USB audio device.

73 de JH3SIF, Keith

> 2017/03/29 9:37、Don Wilhelm  のメール：
> 
> Keith,
> 
> The other station will not know what mark frequency you are using.  The only 
> thing the other station hears is your mark and space frequencies (and the 
> resultant shift), so if you are using the proper RTTY shift, he should copy 
> you with no difficulty.
> 
> Yes, there are some folks who are reluctant to use low tones with RTTY 
> because the 2nd harmonic of that tone falls within the SSB bandwidth.  I 
> would suggest you ignore those comments - the KX3 works fine with the lower 
> tones.
> 
> I am not certain what you meant about FSK D - you should be using AFSK A, so 
> FSK D is not relevant.  I do not do Mac and I do not do CocoModem, so this 
> may be some mixture of settings between the KX3 and CocoModem that do not 
> make sense to me.
> Does CocoModem support soundcard RTTY?  That is what you should be using, no 
> matter what CocoModem calls it.
> 
> FSK D mode with the KX3 is used to send RTTY from CW paddles (not computer 
> input - the KX3 must see the dots and dashes directly from the paddles).  An 
> alternative to the paddles for FSK D input is a software application that can 
> send "KY" commands with ASCII text.  Few applications other than KX3 Utility 
> have that capability.
> 
> 73,
> Don W3FPR
> 
> On 3/28/2017 8:04 PM, Keith Onishi wrote:
>> I have been trying to set up for RTTY operation with KX3 + iMic + cocoaModem 
>> on Macbook Pro, but not successful.
>> Mode selection on KX3 is AFSK A and cocoaModem setup is matched to the KX3 
>> setting.
>> RTTY signal received by KX3 appears not around 2125Hz but around 900Hz. So, 
>> I set cocoaModem’s mark frequency to 915Hz. With that setting, decoded text 
>> appears on the screen. KX3 VFO is properly tuned to the signal, of course.
>> When FSK D on KX3, all is same. RTTY signal appears around 900Hz as well.
>> 
>> I found this had been discussed several years ago in the ML, but no change 
>> in KX3 specification since then.
>> I would like to know if this mark frequency is OK in QSO with other RTTY 
>> station.
>> 

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Re: [Elecraft] Amplifier thoughts

[Matthew Cook]

You can always use impedance transformers to bring your match back within
the "impedance range" of your tuner.   These cost far less per unit price
than the components required to beef up an internal tuner to handle
impedance's of 500-800 ohms or more (or the conjugate) with a solid state
amp.

A simple 3:1 impedance transformation is not expensive in terms of
components and allows you to flatten out the band edges of a dipole or
beam.  Out side of this your amplifier is asking you to pay attention.

For those wanting to use antenna with high impedance (or very low
impedance) feed point there are tuners already that will suit your purpose.
  Thinking about that it would be nice if the KAT1500 could have some form
of tuner interface (like the Icom and Kenwoods) where an external tuner can
be activated, RF applied and held until the tuner releases the tune line.

In the real world as you put it capacitors look like door knobs and
inductors are large enough to stand in and everything is silver plated.
There's that pesky issue with the voltage being the square of the current
for a fixed impedance, it does take long for things to get nasty as you
increase the current by 1 or 2 amps at a time.

73

Matthew
VK5ZM

On 29 March 2017 at 10:00, brian  wrote:

> KAT500 handles a much wider SWR range (like to about 10:1).
>
> Why do you assume people are lucky enough to have antennas with no more
> than a 3:1 SWR across the ham bands?
>
> Yes, higher SWR's require beefed up components but welcome to the real
> world.
>
> 73 de Brian/K3KO
>
>
> On 3/28/2017 23:00 PM, Paul Van Dyke wrote:
>
>> Ralph Parker said my list.
>>
>> 1500w output, 160 - 6m.
>> 2 inputs.
>> 4  outputs (Manual switching is OK).
>> Built-in antenna tuner (good for 3:1 SWR).
>> Reasonably quiet fans.
>> Separate p/s, or remote control head (space considerations.  :-)
>>
>> Paul. KB9AVO​
>>
>> On Mar 28, 2017 4:40 PM, "Ralph Parker"  wrote:
>>
>> I better post this before I'm too late.
>>>
>>> I'd like:
>>> All the features of my KPA500, plus
>>> 1500w output, 160 - 6m.
>>> 2 inputs.
>>> 2 outputs (or more. Manual switching is OK).
>>> Built-in antenna tuner (good for 3:1 SWR).
>>> Reasonably quiet fans.
>>> Separate p/s, or remote control head (space considerations).
>>> (I understand the difficulty of getting high power from the p/s to
>>> the
>>> PA.)
>>> I don't expect to carry it around, so weight is not a problem for me.
>>> Expeditions can use the KPA500 :-)
>>>
>>> When this amp is available, I'll sell amplifiers Ac and Am and buy one.
>>> I'm keeping my KPA-500!
>>>
>>> Ralph, VE7XF
>>>
>>> __
>>> 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 pvandyke1...@gmail.com
>>>
>>> __
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Re: [Elecraft] Amplifier thoughts

[Dave AD6A]

I'd prefer to see the mythical KPA1500 support both a matching KAT1500 (same 
desk footprint as the amp, so it can sit underneath it neatly), as well as a 
new fully-weatherized remote tuner product (call it KART1500?) that can sit 
right at the antenna feedpoint.
VSWR tuning range for both should be 10:1 to 1:1 with no tuning gaps or 
compromises (I really don't mind paying the extra to achieve this). 

I'd like the KPA1500 to have full on/off switching on the front panel, and USB 
rather than D-sub connectors on the rear panel.
At least TWO selectable radio source inputs and THREE selectable antenna output 
ports. 

While we're on wish lists, I'd LOVE to see Elecraft produce a VHF/UHF/Microwave 
radio that looks and operates almost like the K3s with 144MHz, 220MHz, 440MHz, 
1296MHz, 2400MHz, etc. (maybe optional modules on the upper bands). Separate 
antenna ports per band, 100W TX (maybe a bit less on the upper bands), 
all-mode, alpha-numeric labels for memories (a la Yaesu FTM-400XDR), click-mode 
main tuning dial selectable (like IC-7000), and a super-fast scan feature.

Don't want much, do I? ;)

Cheers es 73,
Dave AD6A

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of brian
Sent: Tuesday, March 28, 2017 4:31 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Amplifier thoughts

KAT500 handles a much wider SWR range (like to about 10:1).

Why do you assume people are lucky enough to have antennas with no more than a 
3:1 SWR across the ham bands?

Yes, higher SWR's require beefed up components but welcome to the real world.

73 de Brian/K3KO

On 3/28/2017 23:00 PM, Paul Van Dyke wrote:
> Ralph Parker said my list.
>
> 1500w output, 160 - 6m.
> 2 inputs.
> 4  outputs (Manual switching is OK).
> Built-in antenna tuner (good for 3:1 SWR).
> Reasonably quiet fans.
> Separate p/s, or remote control head (space considerations.  :-)
>
> Paul. KB9AVO​
>
> On Mar 28, 2017 4:40 PM, "Ralph Parker"  wrote:
>
>> I better post this before I'm too late.
>>
>> I'd like:
>> All the features of my KPA500, plus
>> 1500w output, 160 - 6m.
>> 2 inputs.
>> 2 outputs (or more. Manual switching is OK).
>> Built-in antenna tuner (good for 3:1 SWR).
>> Reasonably quiet fans.
>> Separate p/s, or remote control head (space considerations).
>> (I understand the difficulty of getting high power from the p/s 
>> to the
>> PA.)
>> I don't expect to carry it around, so weight is not a problem for me.
>> Expeditions can use the KPA500 :-)
>>
>> When this amp is available, I'll sell amplifiers Ac and Am and buy one.
>> I'm keeping my KPA-500!
>>
>> Ralph, VE7XF
>>
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>> pvandyke1...@gmail.com
>>
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Re: [Elecraft] Lido Mount for the KX3

[Bill Johnson]

I emailed the company to find out if the seat belt bolt mount folds away under 
the passenger seat or does it just fold forward.  Can you fill me in?

73,
Bill
K9YEQ

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of KD6QZX
Sent: Thursday, March 23, 2017 11:10 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Lido Mount for the KX3

Great long awaited news!!! I now have the KX3 and PX3 mounts! 
KX3 Mount – Side KX

 

On Tuesday, January 27, 2015 5:09 PM, "Joshua Gould, K8WXA [via Elecraft]" 
 wrote:
 

  Has anyone used the Lido Mount for the KX3?  I was curious to know if they 
had anything that I could adapt to fit the KX3 and low and behold, there was 
already one there...

Here's a link if you don't know what I'm talking about:
http://www.lidomounts.com/kx3mount.html

73,
Joshua Gould
K8WXA
EM89pn
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Re: [Elecraft] KX3 - AFSK RTTY

[Don Wilhelm]

Keith,

The other station will not know what mark frequency you are using.  The 
only thing the other station hears is your mark and space frequencies 
(and the resultant shift), so if you are using the proper RTTY shift, he 
should copy you with no difficulty.


Yes, there are some folks who are reluctant to use low tones with RTTY 
because the 2nd harmonic of that tone falls within the SSB bandwidth.  I 
would suggest you ignore those comments - the KX3 works fine with the 
lower tones.


I am not certain what you meant about FSK D - you should be using AFSK 
A, so FSK D is not relevant.  I do not do Mac and I do not do CocoModem, 
so this may be some mixture of settings between the KX3 and CocoModem 
that do not make sense to me.
Does CocoModem support soundcard RTTY?  That is what you should be 
using, no matter what CocoModem calls it.


FSK D mode with the KX3 is used to send RTTY from CW paddles (not 
computer input - the KX3 must see the dots and dashes directly from the 
paddles).  An alternative to the paddles for FSK D input is a software 
application that can send "KY" commands with ASCII text.  Few 
applications other than KX3 Utility have that capability.


73,
Don W3FPR

On 3/28/2017 8:04 PM, Keith Onishi wrote:

I have been trying to set up for RTTY operation with KX3 + iMic + cocoaModem on 
Macbook Pro, but not successful.
Mode selection on KX3 is AFSK A and cocoaModem setup is matched to the KX3 
setting.
RTTY signal received by KX3 appears not around 2125Hz but around 900Hz. So, I 
set cocoaModem’s mark frequency to 915Hz. With that setting, decoded text 
appears on the screen. KX3 VFO is properly tuned to the signal, of course.
When FSK D on KX3, all is same. RTTY signal appears around 900Hz as well.

I found this had been discussed several years ago in the ML, but no change in 
KX3 specification since then.
I would like to know if this mark frequency is OK in QSO with other RTTY 
station.


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[Elecraft] KX3 - AFSK RTTY

[Keith Onishi]

I have been trying to set up for RTTY operation with KX3 + iMic + cocoaModem on 
Macbook Pro, but not successful.
Mode selection on KX3 is AFSK A and cocoaModem setup is matched to the KX3 
setting.
RTTY signal received by KX3 appears not around 2125Hz but around 900Hz. So, I 
set cocoaModem’s mark frequency to 915Hz. With that setting, decoded text 
appears on the screen. KX3 VFO is properly tuned to the signal, of course.
When FSK D on KX3, all is same. RTTY signal appears around 900Hz as well.

I found this had been discussed several years ago in the ML, but no change in 
KX3 specification since then.
I would like to know if this mark frequency is OK in QSO with other RTTY 
station.

73 de JH3SIF, Keith

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Re: [Elecraft] question about the KX3

[tomb18]

HiYes it can. You need to use the KY command. See the K3 programmers 
reference.73 Tom va2fsq.com


Sent from my Samsung Galaxy smartphone.
 Original message From: "M. George" 
 Date: 2017-03-28  7:25 PM  (GMT-05:00) To: 
kzer...@gmail.com Cc: Elecraft Mailer  Subject: Re: 
[Elecraft] question about the KX3 
You should be able to send CAT commands to key FSK on your KX3.  K8ZT has a
good write up on doing this in N1MM+:

http://k8zt.blogspot.com/2016/07/using-elecraft-kx3kx3-ky-codes-to-allow.html

mg

On Tue, Mar 28, 2017 at 5:06 PM, Rick  wrote:

> Can anyone tell me whether the KX3 can operate FSK (not AFSK) using an
> input from a computer, not the CW key?
>
> Thanks es 73, Rick K0XB
>
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Re: [Elecraft] Amplifier thoughts

[brian]

KAT500 handles a much wider SWR range (like to about 10:1).

Why do you assume people are lucky enough to have antennas with no more 
than a 3:1 SWR across the ham bands?


Yes, higher SWR's require beefed up components but welcome to the real 
world.


73 de Brian/K3KO

On 3/28/2017 23:00 PM, Paul Van Dyke wrote:

Ralph Parker said my list.

1500w output, 160 - 6m.
2 inputs.
4  outputs (Manual switching is OK).
Built-in antenna tuner (good for 3:1 SWR).
Reasonably quiet fans.
Separate p/s, or remote control head (space considerations.  :-)

Paul. KB9AVO​

On Mar 28, 2017 4:40 PM, "Ralph Parker"  wrote:


I better post this before I'm too late.

I'd like:
All the features of my KPA500, plus
1500w output, 160 - 6m.
2 inputs.
2 outputs (or more. Manual switching is OK).
Built-in antenna tuner (good for 3:1 SWR).
Reasonably quiet fans.
Separate p/s, or remote control head (space considerations).
(I understand the difficulty of getting high power from the p/s to the
PA.)
I don't expect to carry it around, so weight is not a problem for me.
Expeditions can use the KPA500 :-)

When this amp is available, I'll sell amplifiers Ac and Am and buy one.
I'm keeping my KPA-500!

Ralph, VE7XF

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Re: [Elecraft] question about the KX3

[M. George]

You should be able to send CAT commands to key FSK on your KX3.  K8ZT has a
good write up on doing this in N1MM+:

http://k8zt.blogspot.com/2016/07/using-elecraft-kx3kx3-ky-codes-to-allow.html

mg

On Tue, Mar 28, 2017 at 5:06 PM, Rick  wrote:

> Can anyone tell me whether the KX3 can operate FSK (not AFSK) using an
> input from a computer, not the CW key?
>
> Thanks es 73, Rick K0XB
>
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[Elecraft] question about the KX3

[Rick]

Can anyone tell me whether the KX3 can operate FSK (not AFSK) using an 
input from a computer, not the CW key?


Thanks es 73, Rick K0XB

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[Elecraft] Amplifier thoughts

[Paul Van Dyke]

Ralph Parker said my list.

1500w output, 160 - 6m.
2 inputs.
4  outputs (Manual switching is OK).
Built-in antenna tuner (good for 3:1 SWR).
Reasonably quiet fans.
Separate p/s, or remote control head (space considerations.  :-)

Paul. KB9AVO​

On Mar 28, 2017 4:40 PM, "Ralph Parker"  wrote:

> I better post this before I'm too late.
>
> I'd like:
> All the features of my KPA500, plus
> 1500w output, 160 - 6m.
> 2 inputs.
> 2 outputs (or more. Manual switching is OK).
> Built-in antenna tuner (good for 3:1 SWR).
> Reasonably quiet fans.
> Separate p/s, or remote control head (space considerations).
>(I understand the difficulty of getting high power from the p/s to the
> PA.)
> I don't expect to carry it around, so weight is not a problem for me.
> Expeditions can use the KPA500 :-)
>
> When this amp is available, I'll sell amplifiers Ac and Am and buy one.
> I'm keeping my KPA-500!
>
> Ralph, VE7XF
>
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Re: [Elecraft] K3 Sub-Receiver, filters, I/O Board For Sale

[Bill Leonard N0CU]

Jeff,

Is your sub-receiver still available?

Bill N0CU



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http://elecraft.365791.n2.nabble.com/K3-Sub-Receiver-filters-I-O-Board-For-Sale-tp7628405p7628593.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] Amplifier thoughts

[Ralph Parker]

I better post this before I'm too late.

I'd like:
All the features of my KPA500, plus
1500w output, 160 - 6m.
2 inputs.
2 outputs (or more. Manual switching is OK).
Built-in antenna tuner (good for 3:1 SWR).
Reasonably quiet fans.
Separate p/s, or remote control head (space considerations).
   (I understand the difficulty of getting high power from the p/s to 
the PA.)
I don't expect to carry it around, so weight is not a problem for me. 
Expeditions can use the KPA500 :-)


When this amp is available, I'll sell amplifiers Ac and Am and buy one. 
I'm keeping my KPA-500!


Ralph, VE7XF

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Re: [Elecraft] K3/K3s; Digital modes, specifically DV

[Richard Fjeld]

Another fellow about 125 miles away experimented with me on 75 meters 
during a summer evening in conditions we would not have wanted to 
operate in otherwise.  We were surprised to find that fading was more of 
a problem.

Dick, n0ce


On 3/28/2017 10:57 AM, Brian Pietrzyk wrote:
> I second this! I've played with FreeDV too and it has some great 
> possibilities. The only issue run into is there's only a small group of 
> people using it so it's often hard to find someone else on to talk to. I find 
> It works best on the higher (and quieter) frequencies such as 20m and up. So 
> you have to catch an opening and find people that are the right distance away 
> and monitoring in FreeDV mode.
>
> I really hope we can get more people interested in FreeDV and if it could be 
> added into the K and KX series firmware update that would help it grow.
>
> Brian ve3bwp
>
>
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Re: [Elecraft] K3/K3s; Digital modes, specifically DV

[Harry Yingst via Elecraft]

I had my mcHF sitting here monitoring 14.236 in FreeDV Mode and one day it 
started talking.
At the time I was on the phone with a coworker who also was a ham so he 
understood my Nerd Out moment of excitement.



  From: Brian Pietrzyk 
 To: "elecraft@mailman.qth.net"  
 Sent: Tuesday, March 28, 2017 12:03 PM
 Subject: Re: [Elecraft] K3/K3s; Digital modes, specifically DV
   
I second this! I've played with FreeDV too and it has some great possibilities. 
The only issue run into is there's only a small group of people using it so 
it's often hard to find someone else on to talk to. I find It works best on the 
higher (and quieter) frequencies such as 20m and up. So you have to catch an 
opening and find people that are the right distance away and monitoring in 
FreeDV mode. 

I really hope we can get more people interested in FreeDV and if it could be 
added into the K and KX series firmware update that would help it grow. 

Brian ve3bwp

Message: 6
Date: Mon, 27 Mar 2017 16:08:16 -0700
From: Bob Nielsen 
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3/K3s; Digital modes, specifically DV
Message-ID: 
Content-Type: text/plain; charset=utf-8; format=flowed

While the mcHF has some digital audio circuitry, I don't believe it 
provides a digital voice mode.

FreeDV is a very narrow-band (1.1 kHz) digital voice mode using the 
open-source Codec2, developed by VK5DGR.  One can run FreeDV without a 
computer using the Rowetel SM1000 adapter 
(https://www.tindie.com/products/edwin/sm1000-freedv-adpapter/). This 
should work nicely with a KX2 or KX3 for portable FreeDV operation.  I 
haven't tried doing that but it looks fairly straightforward.

Bob, N7XY


On 3/27/17 2:28 PM, Harry Yingst via Elecraft wrote:
>  I would like to see Elecraft built it into their firmware.
> I have a mcHF QRP radio that has Digital Voice in it
> 
>      From: Richard Fjeld 
>  To: Elecraft Reflector 
>  Sent: Monday, March 27, 2017 2:13 PM
>  Subject: [Elecraft] K3/K3s; Digital modes, specifically DV
> 
> Greetings to all,
> 
> The K3/K3s is an excellent radio for digital modes due to the ease of
> interfacing with a computer if desired.  A computer is not even needed
> for some digital modes, and I have tried that successfully.
> 
> I have mentioned in the past that I had tried the free software for
> digital voice on HF called 'FreeDV'.  I had worked a Canadian ham a few
> times using it and he has been keeping in contact with me via email
> encouraging me to get back into it.  I am starting to get up to date
> again, and I found accurate reviews of it on
> http://www.eham.net/reviews/detail/11016   by K2RWF and WA0TPN.  I think
> you will find the reviews interesting and informative.
> 
> Notice that the reviews seem to be either at, or near, 5/5 or 0/5. I
> think both of the reviews I mentioned answer why that is.  I will keep
> my experience mute and let you glean aye/nay from the reviews. Whether
> you approve of digital voice or not, the K3/K3s is a natural for using
> it, and it's fun.  (As always with digital modes, be kind to your finals.)
> 
> FYI,
> Dick, n0ce
> 
> 



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Re: [Elecraft] KX3 power output per band question

[Don Wilhelm]

Ed,

Yes, that is normal.  Check the KX3 Firmware Release notes for MCU 2.38.
In order to achieve that maximum power, the voltage must be at least 
12.8 volts on keydown as indicated by the KX3 display.


73,
Don W3FPR

On 3/28/2017 2:54 PM, Eddy Avila wrote:

Hello again, I noticed today that with my new KX3 driving into a 50-ohm dummy 
load that I can set the power output to 15w on bands 80 - 20meters. However, 
the remaining bands, 160, 17, 12, 10 meters the maximum power output is 
12watts. And on 10w on 6 meters.

Is this normal?

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Re: [Elecraft] KX3 power output per band question

[Walter Underwood]

Yes, that is normal. Before one of the firmware upgrades, the limits were 12, 
10, and 8 Watts.

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

> On Mar 28, 2017, at 11:54 AM, Eddy Avila  wrote:
> 
> Hello again, I noticed today that with my new KX3 driving into a 50-ohm dummy 
> load that I can set the power output to 15w on bands 80 - 20meters. However, 
> the remaining bands, 160, 17, 12, 10 meters the maximum power output is 
> 12watts. And on 10w on 6 meters.
> 
> 
> Is this normal?
> 
> 
> Many thanks and 73
> 
> 
> ed ~ k6sdw
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[Elecraft] KX3 power output per band question

[Eddy Avila]

Hello again, I noticed today that with my new KX3 driving into a 50-ohm dummy 
load that I can set the power output to 15w on bands 80 - 20meters. However, 
the remaining bands, 160, 17, 12, 10 meters the maximum power output is 
12watts. And on 10w on 6 meters.


Is this normal?


Many thanks and 73


ed ~ k6sdw
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Re: [Elecraft] Elecraft KX3 enhancement request - built in USB CAT and Audio interface

[Brian D]

A direct USB audio interface is something I miss too, as my main interest is
digital modes. However, I wouldn't want to ditch the 2m capability.

Brian Pietrzyk  wrote:

> Love my KX3! The ONLY thing I wish were available was a USB CAT/Audio
> module. Maybe it could fit in the vhf transverter space?  Or at the very
> least a data port option. I've been doing QRP digital modes on trips and
> outings with a Signalink USB but it tends to be a hassle. Anyone else
> feels this way or any 3rd parties out there offering this for the KX3?
> 
> Brian ve3bwp
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> gro...@planet3.freeuk.co.uk
> 
> 


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[Elecraft] Elecraft KX3 enhancement request - built in USB CAT and Audio interface

[Brian Pietrzyk]

Love my KX3! The ONLY thing I wish were available was a USB CAT/Audio module. 
Maybe it could fit in the vhf transverter space?  Or at the very least a data 
port option. I've been doing QRP digital modes on trips and outings with a 
Signalink USB but it tends to be a hassle. Anyone else feels this way or any 
3rd parties out there offering this for the KX3?

Brian ve3bwp
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Re: [Elecraft] K3/K3s; Digital modes, specifically DV

[Brian Pietrzyk]

I second this! I've played with FreeDV too and it has some great possibilities. 
The only issue run into is there's only a small group of people using it so 
it's often hard to find someone else on to talk to. I find It works best on the 
higher (and quieter) frequencies such as 20m and up. So you have to catch an 
opening and find people that are the right distance away and monitoring in 
FreeDV mode. 

I really hope we can get more people interested in FreeDV and if it could be 
added into the K and KX series firmware update that would help it grow. 

Brian ve3bwp

Message: 6
Date: Mon, 27 Mar 2017 16:08:16 -0700
From: Bob Nielsen 
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3/K3s; Digital modes, specifically DV
Message-ID: 
Content-Type: text/plain; charset=utf-8; format=flowed

While the mcHF has some digital audio circuitry, I don't believe it 
provides a digital voice mode.

FreeDV is a very narrow-band (1.1 kHz) digital voice mode using the 
open-source Codec2, developed by VK5DGR.  One can run FreeDV without a 
computer using the Rowetel SM1000 adapter 
(https://www.tindie.com/products/edwin/sm1000-freedv-adpapter/). This 
should work nicely with a KX2 or KX3 for portable FreeDV operation.  I 
haven't tried doing that but it looks fairly straightforward.

Bob, N7XY


On 3/27/17 2:28 PM, Harry Yingst via Elecraft wrote:
>  I would like to see Elecraft built it into their firmware.
> I have a mcHF QRP radio that has Digital Voice in it
> 
>   From: Richard Fjeld 
>  To: Elecraft Reflector 
>  Sent: Monday, March 27, 2017 2:13 PM
>  Subject: [Elecraft] K3/K3s; Digital modes, specifically DV
> 
> Greetings to all,
> 
> The K3/K3s is an excellent radio for digital modes due to the ease of
> interfacing with a computer if desired.  A computer is not even needed
> for some digital modes, and I have tried that successfully.
> 
> I have mentioned in the past that I had tried the free software for
> digital voice on HF called 'FreeDV'.  I had worked a Canadian ham a few
> times using it and he has been keeping in contact with me via email
> encouraging me to get back into it.  I am starting to get up to date
> again, and I found accurate reviews of it on
> http://www.eham.net/reviews/detail/11016   by K2RWF and WA0TPN.  I think
> you will find the reviews interesting and informative.
> 
> Notice that the reviews seem to be either at, or near, 5/5 or 0/5. I
> think both of the reviews I mentioned answer why that is.  I will keep
> my experience mute and let you glean aye/nay from the reviews. Whether
> you approve of digital voice or not, the K3/K3s is a natural for using
> it, and it's fun.  (As always with digital modes, be kind to your finals.)
> 
> FYI,
> Dick, n0ce
> 
> 



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