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Upgraded K3 synthesizer module now available: The KSYN3A

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wayne burdick

Upgraded K3 synthesizer module now available: The KSYN3A

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The KSYN3A synthesizer module for the K3 is a completely new design that improves on the original KSYN3 in several ways. All K3s shipped on or after January 23, 2015 already include the new synthesizer (serial number 8801 and later).

See feature list below. Ordering and installation instructions can be found here:

http://www.elecraft.com/order_form_parts.htm#K3%20Parts

* * *

NOTE: If you wish to upgrade a K3 that includes the sub receiver (KRX3), you'll need two (2) KSYN3A modules, since the synthesizers for both receivers must be of the same type.

* * *

KSYN3A FEATURES:

* FASTER CW BREAK-IN AND MORE ACCURATE CW TIMING

A dedicated coprocessor on the module permits faster transmit/receive switching, improving CW timing accuracy with both internal and external keying. This also speeds up receive recovery between elements.

* ULTRA-LOW PHASE NOISE

The KSYN3A significantly improves the K3's already excellent receive and transmit phase noise characteristics at close carrier spacings. This, in turn, improves its close-spaced receive dynamic range, yielding even better weak signal detection in the presence of strong signals. In transmit mode, the KSYN3A keeps the signal exceptionally clean, further enhancing K3 performance at multi-transmitter stations, Field Day and DXpeditions.

* 600-METER COVERAGE

The new synthesizer provides complete coverage of 600 meters -- and below. VFO tuning extends down to 100 kHz, with sensitivity gradually falling off below 450 kHz. Receive sensitivity (MDS) at 475 kHz is typically -120 dBm at the RX ANT IN jack. Transmit output of about 1.0 mW is available for use with a suitable external amplifier. (Note: 600-m allocations vary by country. Operation on this band requires the KBPF3 and KXV3 options. For receive-only use, an antenna can be connected to the RX ANT IN jack on the KXV3 module. For transceive operation with an external amplifier, use the XVTR IN and XVTR OUT jacks, and set CONFIG:KXV3 to TEST.)

* EXCELLENT MECHANICAL STABILITY

The KSYN3A is virtually immune to both physical vibration and magnetic coupling, and operates over a very wide temperature range with no change in performance. K3 kit construction is simplified, as the KSYN3A requires no alignment of any kind.

* * *

73,
Wayne
N6KR

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Re: Upgraded K3 synthesizer module now available: The KSYN3A

Hi Wayne
Wow....a major upgrade, my two cents... "a must have", TX phase noise is the most annoying side effect in ham bands today, major advantage in SO2R's configs. Wayne a quick question, are in stock? Waiting times? Some preliminary measurements eventually some side-by-side numbers?
Tnxvy 73 de VE3GNO Daniel
From: Wayne Burdick <[hidden email]>
To: Elecraft Reflector <[hidden email]>; "[hidden email]" <[hidden email]>
Sent: Friday, February 13, 2015 1:07 AM
Subject: [Elecraft] Upgraded K3 synthesizer module now available: The KSYN3A

The KSYN3A synthesizer module for the K3 is a completely new design that improves on the original KSYN3 in several ways. All K3s shipped on or after January 23, 2015 already include the new synthesizer (serial number 8801 and later).

See feature list below. Ordering and installation instructions can be found here:

http://www.elecraft.com/order_form_parts.htm#K3%20Parts

* * *

NOTE: If you wish to upgrade a K3 that includes the sub receiver (KRX3), you'll need two (2) KSYN3A modules, since the synthesizers for both receivers must be of the same type.

* * *

KSYN3A FEATURES:

* FASTER CW BREAK-IN AND MORE ACCURATE CW TIMING

A dedicated coprocessor on the module permits faster transmit/receive switching, improving CW timing accuracy with both internal and external keying. This also speeds up receive recovery between elements.

* ULTRA-LOW PHASE NOISE

The KSYN3A significantly improves the K3's already excellent receive and transmit phase noise characteristics at close carrier spacings. This, in turn, improves its close-spaced receive dynamic range, yielding even better weak signal detection in the presence of strong signals. In transmit mode, the KSYN3A keeps the signal exceptionally clean, further enhancing K3 performance at multi-transmitter stations, Field Day and DXpeditions.

* 600-METER COVERAGE

The new synthesizer provides complete coverage of 600 meters -- and below. VFO tuning extends down to 100 kHz, with sensitivity gradually falling off below 450 kHz. Receive sensitivity (MDS) at 475 kHz is typically -120 dBm at the RX ANT IN jack. Transmit output of about 1.0 mW is available for use with a suitable external amplifier. (Note: 600-m allocations vary by country. Operation on this band requires the KBPF3 and KXV3 options. For receive-only use, an antenna can be connected to the RX ANT IN jack on the KXV3 module. For transceive operation with an external amplifier, use the XVTR IN and XVTR OUT jacks, and set CONFIG:KXV3 to TEST.)

* EXCELLENT MECHANICAL STABILITY

The KSYN3A is virtually immune to both physical vibration and magnetic coupling, and operates over a very wide temperature range with no change in performance. K3 kit construction is simplified, as the KSYN3A requires no alignment of any kind.

* * *

73,
Wayne
N6KR

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Arie Kleingeld PA3A-2

Re: Upgraded K3 synthesizer module now available: The KSYN3A

In reply to this post by wayne burdick

Wayne,

That sounds interesting. Before investing in two modules I'd like to
know how much the dynamic range will change. Could you share some
relevant measurements?

73
Arie PA3A

Wayne Burdick schreef op 13-2-2015 om 7:07:

>
> * ULTRA-LOW PHASE NOISE
>
> The KSYN3A significantly improves the K3's already excellent receive and transmit phase noise characteristics at close carrier spacings. This, in turn, improves its close-spaced receive dynamic range, yielding even better weak signal detection in the presence of strong signals. In transmit mode, the KSYN3A keeps the signal exceptionally clean, further enhancing K3 performance at multi-transmitter stations, Field Day and DXpeditions.
>
>
>
> 73,
> Wayne
> N6KR
>
>

Barry

Re: Upgraded K3 synthesizer module now available: The KSYN3A

Wat is involved, technically in performing the upgrade - is it simply swapping out a board?
Barry W2UP

Elecraft mailing list

Re: Upgraded K3 synthesizer module now available: The KSYN3A

In reply to this post by wayne burdick

Dang, I just put the sub receiver in last week.... I should have waited

From: Wayne Burdick <[hidden email]>
To: Elecraft Reflector <[hidden email]>; "[hidden email]" <[hidden email]>
Sent: Friday, February 13, 2015 1:07 AM
Subject: [Elecraft] Upgraded K3 synthesizer module now available: The KSYN3A

The KSYN3A synthesizer module for the K3 is a completely new design that improves on the original KSYN3 in several ways. All K3s shipped on or after January 23, 2015 already include the new synthesizer (serial number 8801 and later).

See feature list below. Ordering and installation instructions can be found here:

http://www.elecraft.com/order_form_parts.htm#K3%20Parts

* * *

NOTE: If you wish to upgrade a K3 that includes the sub receiver (KRX3), you'll need two (2) KSYN3A modules, since the synthesizers for both receivers must be of the same type.

* * *

KSYN3A FEATURES:

* FASTER CW BREAK-IN AND MORE ACCURATE CW TIMING

A dedicated coprocessor on the module permits faster transmit/receive switching, improving CW timing accuracy with both internal and external keying. This also speeds up receive recovery between elements.

* ULTRA-LOW PHASE NOISE

The KSYN3A significantly improves the K3's already excellent receive and transmit phase noise characteristics at close carrier spacings. This, in turn, improves its close-spaced receive dynamic range, yielding even better weak signal detection in the presence of strong signals. In transmit mode, the KSYN3A keeps the signal exceptionally clean, further enhancing K3 performance at multi-transmitter stations, Field Day and DXpeditions.

* 600-METER COVERAGE

The new synthesizer provides complete coverage of 600 meters -- and below. VFO tuning extends down to 100 kHz, with sensitivity gradually falling off below 450 kHz. Receive sensitivity (MDS) at 475 kHz is typically -120 dBm at the RX ANT IN jack. Transmit output of about 1.0 mW is available for use with a suitable external amplifier. (Note: 600-m allocations vary by country. Operation on this band requires the KBPF3 and KXV3 options. For receive-only use, an antenna can be connected to the RX ANT IN jack on the KXV3 module. For transceive operation with an external amplifier, use the XVTR IN and XVTR OUT jacks, and set CONFIG:KXV3 to TEST.)

* EXCELLENT MECHANICAL STABILITY

The KSYN3A is virtually immune to both physical vibration and magnetic coupling, and operates over a very wide temperature range with no change in performance. K3 kit construction is simplified, as the KSYN3A requires no alignment of any kind.

* * *

73,
Wayne
N6KR

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Mike Reublin NF4L

Re: Upgraded K3 synthesizer module now available: The KSYN3A

In reply to this post by Barry

Barry -
From Wayne's post...

See feature list below. Ordering and installation instructions can be found here:

http://www.elecraft.com/order_form_parts.htm#K3%20Parts

773, Mike NF4L

> On Feb 13, 2015, at 7:52 AM, Barry <[hidden email]> wrote:
>
> Wat is involved, technically in performing the upgrade - is it simply
> swapping out a board?
> Barry W2UP
>
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/Upgraded-K3-synthesizer-module-now-available-The-KSYN3A-tp7598267p7598270.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
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>
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> Please help support this email list: http://www.qsl.net/donate.html
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Elecraft mailing list

Re: Upgraded K3 synthesizer module now available: The KSYN3A

In reply to this post by wayne burdick

What makes this desirable to me (If I'm reading this right) is the ability to be able to receive down to 100KHz.
I've been working on designing a RX (and possible TX) converter so this is very desirable to me.

From: Wayne Burdick <[hidden email]>
To: Elecraft Reflector <[hidden email]>; "[hidden email]" <[hidden email]>
Sent: Friday, February 13, 2015 1:07 AM
Subject: [Elecraft] Upgraded K3 synthesizer module now available: The KSYN3A

The KSYN3A synthesizer module for the K3 is a completely new design that improves on the original KSYN3 in several ways. All K3s shipped on or after January 23, 2015 already include the new synthesizer (serial number 8801 and later).

See feature list below. Ordering and installation instructions can be found here:

http://www.elecraft.com/order_form_parts.htm#K3%20Parts

______________________________________________________________
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Terry Hart

Re: Upgraded K3 synthesizer module now available: The KSYN3A

In reply to this post by Elecraft mailing list

---and I just received my K3 kit serial number 8795. I had no idea this was
coming up!
The extended receiver tuning down to 100KHz sounds
interesting....what are the front-end filtering arrangements for that, I
wonder? And it would be interesting to see some comparative close-in phase
noise plots.

Terry G3VFO

----- Original Message -----
From: "Harry Yingst via Elecraft" <[hidden email]>
To: "Wayne Burdick" <[hidden email]>; "Elecraft Reflector"
<[hidden email]>; "[hidden email]"
<[hidden email]>
Sent: Friday, February 13, 2015 1:17 PM
Subject: Re: [Elecraft] Upgraded K3 synthesizer module now available: The
KSYN3A

> Dang, I just put the sub receiver in last week.... I should have waited
>
>
>
> From: Wayne Burdick <[hidden email]>
> To: Elecraft Reflector <[hidden email]>;
> "[hidden email]" <[hidden email]>
> Sent: Friday, February 13, 2015 1:07 AM
> Subject: [Elecraft] Upgraded K3 synthesizer module now available: The
> KSYN3A
>
> The KSYN3A synthesizer module for the K3 is a completely new design that
> improves on the original KSYN3 in several ways. All K3s shipped on or
> after January 23, 2015 already include the new synthesizer (serial number
> 8801 and later).
>
> See feature list below. Ordering and installation instructions can be
> found here:
>
> http://www.elecraft.com/order_form_parts.htm#K3%20Parts
>
> * * *
>
> NOTE: If you wish to upgrade a K3 that includes the sub receiver (KRX3),
> you'll need two (2) KSYN3A modules, since the synthesizers for both
> receivers must be of the same type.
>
> * * *
>
> KSYN3A FEATURES:
>
> * FASTER CW BREAK-IN AND MORE ACCURATE CW TIMING
>
> A dedicated coprocessor on the module permits faster transmit/receive
> switching, improving CW timing accuracy with both internal and external
> keying. This also speeds up receive recovery between elements.
>
> * ULTRA-LOW PHASE NOISE
>
> The KSYN3A significantly improves the K3's already excellent receive and
> transmit phase noise characteristics at close carrier spacings. This, in
> turn, improves its close-spaced receive dynamic range, yielding even
> better weak signal detection in the presence of strong signals. In
> transmit mode, the KSYN3A keeps the signal exceptionally clean, further
> enhancing K3 performance at multi-transmitter stations, Field Day and
> DXpeditions.
>
> * 600-METER COVERAGE
>
> The new synthesizer provides complete coverage of 600 meters -- and below.
> VFO tuning extends down to 100 kHz, with sensitivity gradually falling off
> below 450 kHz. Receive sensitivity (MDS) at 475 kHz is typically -120 dBm
> at the RX ANT IN jack. Transmit output of about 1.0 mW is available for
> use with a suitable external amplifier. (Note: 600-m allocations vary by
> country. Operation on this band requires the KBPF3 and KXV3 options. For
> receive-only use, an antenna can be connected to the RX ANT IN jack on the
> KXV3 module. For transceive operation with an external amplifier, use the
> XVTR IN and XVTR OUT jacks, and set CONFIG:KXV3 to TEST.)
>
> * EXCELLENT MECHANICAL STABILITY
>
> The KSYN3A is virtually immune to both physical vibration and magnetic
> coupling, and operates over a very wide temperature range with no change
> in performance. K3 kit construction is simplified, as the KSYN3A requires
> no alignment of any kind.
>
> * * *
>
> 73,
> Wayne
> N6KR
>
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

Edward R Cole

Re: Upgraded K3 synthesizer module now available: The KSYN3A

In reply to this post by wayne burdick

The extension of operation to 100-KHz is a terrific addition for
those of us using the 600m band. FCC approval for experimental
licensed stations on 472-478 KHz has seen a major move of activity to
this new sub-band which left users of the K3 out (the old lower limit
of 490-KHz).

I will have to save up as I have the KRX3, so the cost is double.

Also will be interesting to see if the lower phase noise will improve
weak-signal detection threshold on digital modes (e.g. JT65).

73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
[hidden email]

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Johnny Siu

Upgraded K3 synthesizer module now available: The KSYN3A

In reply to this post by wayne burdick

Hello Wayne,
It is good to see improvement in RX phase noise which will affect the reciprocal noise mixing.
Could you put the improvement in layman terms? For example, in the original KSYN3, a weak CW signal could be heard 10Khz away from a S9+60db signal, under the new KSYN3A, what improvement can I expect? Will it be now heard 1Khz away from the S9+60db signal?
It would be better for you to give examples in this way so that for a non-radio profession like me, can understand the improvements.
73
Johnny VR2XMC
寄件人︰ Wayne Burdick <[hidden email]>
收件人︰ Elecraft Reflector <[hidden email]>; "[hidden email]" <[hidden email]>
傳送日期︰ 2015年02月13日 (週五) 2:07 PM
主題︰ [Elecraft] Upgraded K3 synthesizer module now available: The KSYN3A

The KSYN3A synthesizer module for the K3 is a completely new design that improves on the original KSYN3 in several ways. All K3s shipped on or after January 23, 2015 already include the new synthesizer (serial number 8801 and later).

See feature list below. Ordering and installation instructions can be found here:

http://www.elecraft.com/order_form_parts.htm#K3%20Parts

* * *

NOTE: If you wish to upgrade a K3 that includes the sub receiver (KRX3), you'll need two (2) KSYN3A modules, since the synthesizers for both receivers must be of the same type.

* * *

KSYN3A FEATURES:

* FASTER CW BREAK-IN AND MORE ACCURATE CW TIMING

A dedicated coprocessor on the module permits faster transmit/receive switching, improving CW timing accuracy with both internal and external keying. This also speeds up receive recovery between elements.

* ULTRA-LOW PHASE NOISE

The KSYN3A significantly improves the K3's already excellent receive and transmit phase noise characteristics at close carrier spacings. This, in turn, improves its close-spaced receive dynamic range, yielding even better weak signal detection in the presence of strong signals. In transmit mode, the KSYN3A keeps the signal exceptionally clean, further enhancing K3 performance at multi-transmitter stations, Field Day and DXpeditions.

* 600-METER COVERAGE

The new synthesizer provides complete coverage of 600 meters -- and below. VFO tuning extends down to 100 kHz, with sensitivity gradually falling off below 450 kHz. Receive sensitivity (MDS) at 475 kHz is typically -120 dBm at the RX ANT IN jack. Transmit output of about 1.0 mW is available for use with a suitable external amplifier. (Note: 600-m allocations vary by country. Operation on this band requires the KBPF3 and KXV3 options. For receive-only use, an antenna can be connected to the RX ANT IN jack on the KXV3 module. For transceive operation with an external amplifier, use the XVTR IN and XVTR OUT jacks, and set CONFIG:KXV3 to TEST.)

* EXCELLENT MECHANICAL STABILITY

The KSYN3A is virtually immune to both physical vibration and magnetic coupling, and operates over a very wide temperature range with no change in performance. K3 kit construction is simplified, as the KSYN3A requires no alignment of any kind.

* * *

73,
Wayne
N6KR

______________________________________________________________
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Post: mailto:[hidden email]

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Re: Upgraded K3 synthesizer module now available: The KSYN3A

In reply to this post by Terry Hart

I have the KBPF3 in both my Mani and Sub Receivers so I'm hoping they will go down to 100KHz
I also wish I had known about this because it's something I've wanted for a long time (to be able to Receive LF)

From: Terry Hart <[hidden email]>
To: [hidden email]
Sent: Friday, February 13, 2015 9:39 AM
Subject: Re: [Elecraft] Upgraded K3 synthesizer module now available: The KSYN3A

---and I just received my K3 kit serial number 8795. I had no idea this was
coming up!
The extended receiver tuning down to 100KHz sounds
interesting....what are the front-end filtering arrangements for that, I
wonder? And it would be interesting to see some comparative close-in phase
noise plots.

Terry G3VFO

----- Original Message -----
From: "Harry Yingst via Elecraft" <[hidden email]>
To: "Wayne Burdick" <[hidden email]>; "Elecraft Reflector"
<[hidden email]>; "[hidden email]"
<[hidden email]>
Sent: Friday, February 13, 2015 1:17 PM
Subject: Re: [Elecraft] Upgraded K3 synthesizer module now available: The
KSYN3A

Elecraft mailing list

Re: Upgraded K3 synthesizer module now available: The KSYN3A

In reply to this post by Johnny Siu

so no more phase noise limitation in DR and IMD?...that's gonna be fun, coz now there is a lot of buzz with new 7850 super low noise LO, so 200 bucks update K3 is gonna stay shoulder to shoulder with a 10k limited quantity radio...so here is my bet...won't wait for test results and gonna order 2day...

vy 73 de VE3GNO Daniel
From: Johnny Siu <[hidden email]>
To: Wayne Burdick <[hidden email]>; Elecraft Reflector <[hidden email]>; "[hidden email]" <[hidden email]>
Sent: Friday, February 13, 2015 9:42 AM
Subject: [Elecraft] Upgraded K3 synthesizer module now available: The KSYN3A

Hello Wayne,
It is good to see improvement in RX phase noise which will affect the reciprocal noise mixing.
Could you put the improvement in layman terms? For example, in the original KSYN3, a weak CW signal could be heard 10Khz away from a S9+60db signal, under the new KSYN3A, what improvement can I expect? Will it be now heard 1Khz away from the S9+60db signal?
It would be better for you to give examples in this way so that for a non-radio profession like me, can understand the improvements.
73
Johnny VR2XMC
寄件人︰ Wayne Burdick <[hidden email]>
收件人︰ Elecraft Reflector <[hidden email]>; "[hidden email]" <[hidden email]>
傳送日期︰ 2015年02月13日 (週五) 2:07 PM
主題︰ [Elecraft] Upgraded K3 synthesizer module now available: The KSYN3A

The KSYN3A synthesizer module for the K3 is a completely new design that improves on the original KSYN3 in several ways. All K3s shipped on or after January 23, 2015 already include the new synthesizer (serial number 8801 and later).

See feature list below. Ordering and installation instructions can be found here:

http://www.elecraft.com/order_form_parts.htm#K3%20Parts

* * *

NOTE: If you wish to upgrade a K3 that includes the sub receiver (KRX3), you'll need two (2) KSYN3A modules, since the synthesizers for both receivers must be of the same type.

* * *

KSYN3A FEATURES:

* FASTER CW BREAK-IN AND MORE ACCURATE CW TIMING

A dedicated coprocessor on the module permits faster transmit/receive switching, improving CW timing accuracy with both internal and external keying. This also speeds up receive recovery between elements.

* ULTRA-LOW PHASE NOISE

The KSYN3A significantly improves the K3's already excellent receive and transmit phase noise characteristics at close carrier spacings. This, in turn, improves its close-spaced receive dynamic range, yielding even better weak signal detection in the presence of strong signals. In transmit mode, the KSYN3A keeps the signal exceptionally clean, further enhancing K3 performance at multi-transmitter stations, Field Day and DXpeditions.

* 600-METER COVERAGE

The new synthesizer provides complete coverage of 600 meters -- and below. VFO tuning extends down to 100 kHz, with sensitivity gradually falling off below 450 kHz. Receive sensitivity (MDS) at 475 kHz is typically -120 dBm at the RX ANT IN jack. Transmit output of about 1.0 mW is available for use with a suitable external amplifier. (Note: 600-m allocations vary by country. Operation on this band requires the KBPF3 and KXV3 options. For receive-only use, an antenna can be connected to the RX ANT IN jack on the KXV3 module. For transceive operation with an external amplifier, use the XVTR IN and XVTR OUT jacks, and set CONFIG:KXV3 to TEST.)

* EXCELLENT MECHANICAL STABILITY

The KSYN3A is virtually immune to both physical vibration and magnetic coupling, and operates over a very wide temperature range with no change in performance. K3 kit construction is simplified, as the KSYN3A requires no alignment of any kind.

* * *

73,
Wayne
N6KR

______________________________________________________________
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Doug Turnbull

Further K3 development

In reply to this post by Terry Hart

Dear OMs,
I will follow this thread for a while. It would be nice to know more
about the performance enhancement as Johnny Siu has stated.

What I am really chuffed about is that Wayne, Eric and company are
enhancing a radio which has been on the market perhaps seven years now.
Oh I like the modular design and construction and I love the company.

The K3 is not being made obsolete but it is being updated right back to
SN 1 - My friend Brendan Minish, EI6IZ can update SN 42 and no doubt he
will. I will be contacting Brendan to see what he thinks.

Good going guys, my loyalty is rewarded yet attain. If I can be
jingoistic it is nice to see an American company performing in this manner.
The edge is not lost. Great to see the engineering continue to evolve the
K3 - thank you.

73 Doug EI2CN

-----Original Message-----
From: Elecraft [mailto:[hidden email]] On Behalf Of Terry
Hart
Sent: 13 February 2015 14:39
To: [hidden email]
Subject: Re: [Elecraft] Upgraded K3 synthesizer module now available:
TheKSYN3A

---and I just received my K3 kit serial number 8795. I had no idea this was
coming up!
The extended receiver tuning down to 100KHz sounds
interesting....what are the front-end filtering arrangements for that, I
wonder? And it would be interesting to see some comparative close-in phase
noise plots.

Terry G3VFO

----- Original Message -----
From: "Harry Yingst via Elecraft" <[hidden email]>
To: "Wayne Burdick" <[hidden email]>; "Elecraft Reflector"
<[hidden email]>; "[hidden email]"
<[hidden email]>
Sent: Friday, February 13, 2015 1:17 PM
Subject: Re: [Elecraft] Upgraded K3 synthesizer module now available: The
KSYN3A

> VFO tuning extends down to 100 kHz, with sensitivity gradually falling off

> below 450 kHz. Receive sensitivity (MDS) at 475 kHz is typically -120 dBm
> at the RX ANT IN jack. Transmit output of about 1.0 mW is available for
> use with a suitable external amplifier. (Note: 600-m allocations vary by
> country. Operation on this band requires the KBPF3 and KXV3 options. For
> receive-only use, an antenna can be connected to the RX ANT IN jack on the

> KXV3 module. For transceive operation with an external amplifier, use the
> XVTR IN and XVTR OUT jacks, and set CONFIG:KXV3 to TEST.)
>
> * EXCELLENT MECHANICAL STABILITY
>
> The KSYN3A is virtually immune to both physical vibration and magnetic
> coupling, and operates over a very wide temperature range with no change
> in performance. K3 kit construction is simplified, as the KSYN3A requires
> no alignment of any kind.
>
> * * *
>
> 73,
> Wayne
> N6KR
>
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
>
>
> ______________________________________________________________
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> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
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Merv Schweigert

Re: Further K3 development

I hope some side by side specs show up, like I mentioned to upgrade for
me would
be 800 bucks, 2 radios, not going to do that without some solid proof
of what I am
getting, no complaints at all, just like to see what I should expect.

How about a new mixer board? Present one can be improved quite a bit
with some
newer 50- cent chips like the FSA3157. with better specs than the
I7SWX mods
and much less complicated,

Still some room to improve the K3, so thanks Elecraft for working to
keep it up to date.
73 Merv K9FD/KH6

> Dear OMs,
> I will follow this thread for a while. It would be nice to know more
> about the performance enhancement as Johnny Siu has stated.
>
> What I am really chuffed about is that Wayne, Eric and company are
> enhancing a radio which has been on the market perhaps seven years now.
> Oh I like the modular design and construction and I love the company.
>
> The K3 is not being made obsolete but it is being updated right back to
> SN 1 - My friend Brendan Minish, EI6IZ can update SN 42 and no doubt he
> will. I will be contacting Brendan to see what he thinks.
>
> Good going guys, my loyalty is rewarded yet attain. If I can be
> jingoistic it is nice to see an American company performing in this manner.
> The edge is not lost. Great to see the engineering continue to evolve the
> K3 - thank you.
>
> 73 Doug EI2CN
>
> -----Original Message-----
> From: Elecraft [mailto:[hidden email]] On Behalf Of Terry
> Hart
> Sent: 13 February 2015 14:39
> To: [hidden email]
> Subject: Re: [Elecraft] Upgraded K3 synthesizer module now available:
> TheKSYN3A
>
> ---and I just received my K3 kit serial number 8795. I had no idea this was
> coming up!
> The extended receiver tuning down to 100KHz sounds
> interesting....what are the front-end filtering arrangements for that, I
> wonder? And it would be interesting to see some comparative close-in phase
> noise plots.
>
> Terry G3VFO
>
>
> ----- Original Message -----
> From: "Harry Yingst via Elecraft" <[hidden email]>
> To: "Wayne Burdick" <[hidden email]>; "Elecraft Reflector"
> <[hidden email]>; "[hidden email]"
> <[hidden email]>
> Sent: Friday, February 13, 2015 1:17 PM
> Subject: Re: [Elecraft] Upgraded K3 synthesizer module now available: The
> KSYN3A
>
>
>> Dang, I just put the sub receiver in last week.... I should have waited
>>
>>
>>
>> From: Wayne Burdick <[hidden email]>
>> To: Elecraft Reflector <[hidden email]>;
>> "[hidden email]" <[hidden email]>
>> Sent: Friday, February 13, 2015 1:07 AM
>> Subject: [Elecraft] Upgraded K3 synthesizer module now available: The
>> KSYN3A
>>
>> The KSYN3A synthesizer module for the K3 is a completely new design that
>> improves on the original KSYN3 in several ways. All K3s shipped on or
>> after January 23, 2015 already include the new synthesizer (serial number
>> 8801 and later).
>>
>> See feature list below. Ordering and installation instructions can be
>> found here:
>>
>> http://www.elecraft.com/order_form_parts.htm#K3%20Parts
>>
>> * * *
>>
>> NOTE: If you wish to upgrade a K3 that includes the sub receiver (KRX3),
>> you'll need two (2) KSYN3A modules, since the synthesizers for both
>> receivers must be of the same type.
>>
>> * * *
>>
>> KSYN3A FEATURES:
>>
>> * FASTER CW BREAK-IN AND MORE ACCURATE CW TIMING
>>
>> A dedicated coprocessor on the module permits faster transmit/receive
>> switching, improving CW timing accuracy with both internal and external
>> keying. This also speeds up receive recovery between elements.
>>
>> * ULTRA-LOW PHASE NOISE
>>
>> The KSYN3A significantly improves the K3's already excellent receive and
>> transmit phase noise characteristics at close carrier spacings. This, in
>> turn, improves its close-spaced receive dynamic range, yielding even
>> better weak signal detection in the presence of strong signals. In
>> transmit mode, the KSYN3A keeps the signal exceptionally clean, further
>> enhancing K3 performance at multi-transmitter stations, Field Day and
>> DXpeditions.
>>
>> * 600-METER COVERAGE
>>
>> The new synthesizer provides complete coverage of 600 meters -- and below.
>> VFO tuning extends down to 100 kHz, with sensitivity gradually falling off
>> below 450 kHz. Receive sensitivity (MDS) at 475 kHz is typically -120 dBm
>> at the RX ANT IN jack. Transmit output of about 1.0 mW is available for
>> use with a suitable external amplifier. (Note: 600-m allocations vary by
>> country. Operation on this band requires the KBPF3 and KXV3 options. For
>> receive-only use, an antenna can be connected to the RX ANT IN jack on the
>> KXV3 module. For transceive operation with an external amplifier, use the
>> XVTR IN and XVTR OUT jacks, and set CONFIG:KXV3 to TEST.)
>>
>> * EXCELLENT MECHANICAL STABILITY
>>
>> The KSYN3A is virtually immune to both physical vibration and magnetic
>> coupling, and operates over a very wide temperature range with no change
>> in performance. K3 kit construction is simplified, as the KSYN3A requires
>> no alignment of any kind.
>>
>> * * *
>>
>> 73,
>> Wayne
>> N6KR
>>
>>
>>
>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>>
>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
> ______________________________________________________________
> Elecraft mailing list
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> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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> Message delivered to [hidden email]
>

wayne burdick

Re: Further K3 development

Administrator

Merv,

We have done our own tests of the I7SWX mixer, and while we saw some improvement in dynamic range, it came at the expense of worse MDS. The jury is still out. Our present mixer does an excellent job.

73,
Wayne
N6KR

On Feb 13, 2015, at 9:47 AM, Merv Schweigert <[hidden email]> wrote:

> How about a new mixer board? Present one can be improved quite a bit with some
> newer 50- cent chips like the FSA3157. with better specs than the I7SWX mods
> and much less complicated,
>
> Still some room to improve the K3, so thanks Elecraft for working to keep it up to date.
> 73 Merv K9FD/KH6

______________________________________________________________
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Fred Smith-2

Re: Further K3 development

In reply to this post by Doug Turnbull

This was one of the very reasons that I finally moved to Elecraft and sold
my last 2 FTDX-5000MP's several yrs ago and have plans on returning. Most
all Elecraft gear here as far as radios except for an IC-9100 which there
are no replacements for.

May they continue their present business model, as it works very well.

73,
Fred/N0AZZ
K3 Ser # 6730--KX3 # 5210--K2/100 # 6470-KAT100
P3/SVGA--KAT500--W2
Amps Elecraft KPA500 HF/6m--Alpha's 9500 HF--87A HF--Mirage B-5030-G
300+w--(2) B-5016-G's 165w 2m

-----Original Message-----
From: Elecraft [mailto:[hidden email]] On Behalf Of Doug
Turnbull
Sent: Friday, February 13, 2015 11:04 AM
To: 'Terry Hart'; [hidden email]
Subject: [Elecraft] Further K3 development

Dear OMs,
I will follow this thread for a while. It would be nice to know more
about the performance enhancement as Johnny Siu has stated.

What I am really chuffed about is that Wayne, Eric and company are
enhancing a radio which has been on the market perhaps seven years now.
Oh I like the modular design and construction and I love the company.

The K3 is not being made obsolete but it is being updated right back to
SN 1 - My friend Brendan Minish, EI6IZ can update SN 42 and no doubt he
will. I will be contacting Brendan to see what he thinks.

Good going guys, my loyalty is rewarded yet attain. If I can be
jingoistic it is nice to see an American company performing in this manner.
The edge is not lost. Great to see the engineering continue to evolve the
K3 - thank you.

73 Doug EI2CN

-----Original Message-----
From: Elecraft [mailto:[hidden email]] On Behalf Of Terry
Hart
Sent: 13 February 2015 14:39
To: [hidden email]
Subject: Re: [Elecraft] Upgraded K3 synthesizer module now available:
TheKSYN3A

---and I just received my K3 kit serial number 8795. I had no idea this was
coming up!
The extended receiver tuning down to 100KHz sounds interesting....what are
the front-end filtering arrangements for that, I wonder? And it would be
interesting to see some comparative close-in phase noise plots.

Terry G3VFO

----- Original Message -----
From: "Harry Yingst via Elecraft" <[hidden email]>
To: "Wayne Burdick" <[hidden email]>; "Elecraft Reflector"
<[hidden email]>; "[hidden email]"
<[hidden email]>
Sent: Friday, February 13, 2015 1:17 PM
Subject: Re: [Elecraft] Upgraded K3 synthesizer module now available: The
KSYN3A

> Dang, I just put the sub receiver in last week.... I should have
> waited
>
>
>
> From: Wayne Burdick <[hidden email]>
> To: Elecraft Reflector <[hidden email]>;
> "[hidden email]" <[hidden email]>
> Sent: Friday, February 13, 2015 1:07 AM
> Subject: [Elecraft] Upgraded K3 synthesizer module now available: The
> KSYN3A
>
> The KSYN3A synthesizer module for the K3 is a completely new design
> that improves on the original KSYN3 in several ways. All K3s shipped
> on or after January 23, 2015 already include the new synthesizer
> (serial number
> 8801 and later).
>
> See feature list below. Ordering and installation instructions can be
> found here:
>
> http://www.elecraft.com/order_form_parts.htm#K3%20Parts
>
> * * *
>
> NOTE: If you wish to upgrade a K3 that includes the sub receiver
> (KRX3), you'll need two (2) KSYN3A modules, since the synthesizers for
> both receivers must be of the same type.
>
> * * *
>
> KSYN3A FEATURES:
>
> * FASTER CW BREAK-IN AND MORE ACCURATE CW TIMING
>
> A dedicated coprocessor on the module permits faster transmit/receive
> switching, improving CW timing accuracy with both internal and
> external keying. This also speeds up receive recovery between elements.
>
> * ULTRA-LOW PHASE NOISE
>
> The KSYN3A significantly improves the K3's already excellent receive
> and transmit phase noise characteristics at close carrier spacings.
> This, in turn, improves its close-spaced receive dynamic range,
> yielding even better weak signal detection in the presence of strong
> signals. In transmit mode, the KSYN3A keeps the signal exceptionally
> clean, further enhancing K3 performance at multi-transmitter stations,
> Field Day and DXpeditions.
>
> * 600-METER COVERAGE
>
> The new synthesizer provides complete coverage of 600 meters -- and below.

> VFO tuning extends down to 100 kHz, with sensitivity gradually falling
> off

> below 450 kHz. Receive sensitivity (MDS) at 475 kHz is typically -120
> dBm at the RX ANT IN jack. Transmit output of about 1.0 mW is
> available for use with a suitable external amplifier. (Note: 600-m
> allocations vary by country. Operation on this band requires the KBPF3
> and KXV3 options. For receive-only use, an antenna can be connected to
> the RX ANT IN jack on the

> KXV3 module. For transceive operation with an external amplifier, use
> the XVTR IN and XVTR OUT jacks, and set CONFIG:KXV3 to TEST.)
>
> * EXCELLENT MECHANICAL STABILITY
>
> The KSYN3A is virtually immune to both physical vibration and magnetic
> coupling, and operates over a very wide temperature range with no
> change in performance. K3 kit construction is simplified, as the
> KSYN3A requires no alignment of any kind.
>
> * * *
>
> 73,
> Wayne
> N6KR
>
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net Please help support this email
> list: http://www.qsl.net/donate.html Message delivered to
> [hidden email]
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net Please help support this email
> list: http://www.qsl.net/donate.html Message delivered to
> [hidden email]

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Gary Smith-2

Re: Further K3 development

In reply to this post by Merv Schweigert

My opinion which may or may not be worth 2 cents:

The KX3 seems to satisfy many who would otherwise be buying a K3,
maybe a K2 or K1. To me the KX3 is a fabulous & affordable QRP rig.
However nice that tiny wonder is, I prefer the larger K3 with its
greater choices and options which I find most helpful to my DXing &
contesting interests.

Considering what I do with my K3, I can't imagine what they could do
to make a much better radio; I'm not sure what a future "K4" would
have that I would find more appealing other than maybe another couple
inches of width and maybe 1" of height for my 10 thumbs but till
then, with the K3 being so modular and upgrades possible by
replacing/exchanging boards, I'm expecting the K3 will be the
flagship for years to come.

Every company has to address profit margins to be viable and I'd much
rather give Elecraft more $ for component upgrades than have to sell
my K3 to then purchase a surely more expensive, fully loaded "K4" or
whatever it would be called.

I love the option of keeping the K3 at the top of the game & Elecraft
making a satisfactory profit by making that possible. Elecraft; you
keep improving as you're doing, I'll keep upgrading.

& thanks!

73, Gary KA1J

> Still some room to improve the K3, so thanks Elecraft for working to
> keep it up to date.
> 73 Merv K9FD/KH6

---
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Jim Brown-10

Re: Upgraded K3 synthesizer module now available: The KSYN3A

In reply to this post by Elecraft mailing list

On Fri,2/13/2015 6:56 AM, VE3GNO Daniel via Elecraft wrote:
> that's gonna be fun, coz now there is a lot of buzz with new 7850 super low noise LO,

Um -- when ARRL tested the Icom 7800 and 7600 rigs, they were among the
poorest performers with respect to transmitted noise. I suspect that the
massive improvement they are citing may be simply in comparison to their
own previous products, and with the Yaesu products, which tested even
worse.

73, Jim K9YC
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Elecraft mailing list

Re: Further K3 development

In reply to this post by Gary Smith-2

I've had my K3 about a year now and Unless something drastically changes I highly doubt I'd changeAt first I was surprised at it's size, but now I like that size and really don't want it larger.
I also like that it's modular (K3, P3, KPA500, KAT500, Etc.).

I think what appeals to me most is some of the thought that went into it.They kept the interface as RS-232 and Not USB (Thank goodness for that).
I also like that it's not all molded plastic, yea I like the simple less is more style.

It takes a lot to impress me and this is probably the first radio I would even consider rating a 10.
If you stop and think about it for what the K3 and accessories really cost the price is actually quite fair.(I think we get quite the band for out buck)

From: Gary Smith <[hidden email]>
To: [hidden email]
Sent: Friday, February 13, 2015 1:16 PM
Subject: Re: [Elecraft] Further K3 development

My opinion which may or may not be worth 2 cents:

The KX3 seems to satisfy many who would otherwise be buying a K3,
maybe a K2 or K1. To me the KX3 is a fabulous & affordable QRP rig.
However nice that tiny wonder is, I prefer the larger K3 with its
greater choices and options which I find most helpful to my DXing &
contesting interests.

Considering what I do with my K3, I can't imagine what they could do
to make a much better radio; I'm not sure what a future "K4" would
have that I would find more appealing other than maybe another couple
inches of width and maybe 1" of height for my 10 thumbs but till
then, with the K3 being so modular and upgrades possible by
replacing/exchanging boards, I'm expecting the K3 will be the
flagship for years to come.

Every company has to address profit margins to be viable and I'd much
rather give Elecraft more $ for component upgrades than have to sell
my K3 to then purchase a surely more expensive, fully loaded "K4" or
whatever it would be called.

I love the option of keeping the K3 at the top of the game & Elecraft
making a satisfactory profit by making that possible. Elecraft; you
keep improving as you're doing, I'll keep upgrading.

& thanks!

73, Gary KA1J

> Still some room to improve the K3, so thanks Elecraft for working to
> keep it up to date.
> 73 Merv K9FD/KH6

---
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Elecraft mailing list

Re: Further K3 development

In reply to this post by Gary Smith-2

My backup radio is a TS-590S, and I wish Kenwood had taken a similar approach as Elecraft to upgrade it into the new TS-590SG. It's really admirable that Elecraft decided not to take advantage of the advancements in technology to generate additional revenue. These guys are really hams and engineers above all

Robert-KP4Y/W4

On Friday, February 13, 2015 1:41 PM, Gary Smith <[hidden email]> wrote:

My opinion which may or may not be worth 2 cents:

The KX3 seems to satisfy many who would otherwise be buying a K3,
maybe a K2 or K1. To me the KX3 is a fabulous & affordable QRP rig.
However nice that tiny wonder is, I prefer the larger K3 with its
greater choices and options which I find most helpful to my DXing &
contesting interests.

Considering what I do with my K3, I can't imagine what they could do
to make a much better radio; I'm not sure what a future "K4" would
have that I would find more appealing other than maybe another couple
inches of width and maybe 1" of height for my 10 thumbs but till
then, with the K3 being so modular and upgrades possible by
replacing/exchanging boards, I'm expecting the K3 will be the
flagship for years to come.

Every company has to address profit margins to be viable and I'd much
rather give Elecraft more $ for component upgrades than have to sell
my K3 to then purchase a surely more expensive, fully loaded "K4" or
whatever it would be called.

I love the option of keeping the K3 at the top of the game & Elecraft
making a satisfactory profit by making that possible. Elecraft; you
keep improving as you're doing, I'll keep upgrading.

& thanks!

73, Gary KA1J

> Still some room to improve the K3, so thanks Elecraft for working to
> keep it up to date.
> 73 Merv K9FD/KH6

---
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