Date   

Re: K3 Specifications (.pdf) posted on Elecraft website <eom>

n7ua <n7ua@...>
 

--- In Elecraft_K3@yahoogroups.com, "bill_w4zv" <w0zv@...> wrote:

Even if the K3's IMD3 only equals Orion it will still be "good enough"
(i.e. excellent...as Orion is). In my opinion the real differentiator
between the two rigs boil down to be ergonomics and firmware (plus the
fact that the K3 has Sub RX performance equal to the Main RX, which is
a major weakness of Orion).

73, Bill
So far the K-3 looks good. The spec I would like to see now is phase
noise. The K2 was limited by phase noise (according to the Sherwood
Measurements) with otherwise a very strong front end. I hope the K-3
is as good as the Orion, which is very good in phase noise
performance. Bob N7UA


Re: K3 preliminary Specs

N1EU <barry.n1eu@...>
 

--- In Elecraft_K3@yahoogroups.com, "CR" <vk3he@...> wrote:

The IMD Dynamic range number is fantastic. If like the Orion the IMD
dynamic range does not change much at 2khz then theres little doubt
that the K3 will be the best performing radio on the market.
Actually, Wayne mentioned
(http://mailman.qth.net/pipermail/elecraft/2007-July/071030.html) a
10dB falloff in IMD from 5Khz to 2Khz, which would bring it in about
the same as the Orion I/II at 2Khz.

73,
Barry N1EU


K3 IRC

Thom LaCosta <lacosta@...>
 

I've created an IRC channel for K3 folks....one of the plusses is that you don't need an IRC client to access it. There's a web based access at

http://www.zerobeat.net/qrp/k3chat.html

if you do have an irc client, you can reach the channel at

irc.icq.com - /join #k3

IRC is a lot like the bands...if no one is logged on, there is no activity. Unlike radio, if someone is there, you'll see them.

Enjoy

73,Thom-k3hrn
www.zerobeat.net Home of QRP Web Ring, Drakelist home page,Drake Web Ring,
QRP IRC channel, Drake IRC Channel, Elecraft Owners Database
www.tlchost.net/hosting/ *** Web Hosting as low as 3.49/month


Re: [Elecraft_K3] Re: K3 preliminary Specs

Thom LaCosta <lacosta@...>
 

On Fri, 20 Jul 2007, CR wrote:


I wonder what signal generators Elecraft uses to make its
measurements? I shudder just thinking about the costs of obtaining 2
new generators with low enough phase noise performance to make these
measurements especially at 2khz.
That's one reason the equipment rental business is healthy (g)

73,Thom-k3hrn
www.zerobeat.net Home of QRP Web Ring, Drakelist home page,Drake Web Ring,
QRP IRC channel, Drake IRC Channel, Elecraft Owners Database
www.tlchost.net/hosting/ *** Web Hosting as low as 3.49/month


Re: K3 Specifications (.pdf) posted on Elecraft website <eom>

bill_w4zv <w0zv@...>
 

Even if the K3's IMD3 only equals Orion it will still be "good enough"
(i.e. excellent...as Orion is). In my opinion the real differentiator
between the two rigs boil down to be ergonomics and firmware (plus the
fact that the K3 has Sub RX performance equal to the Main RX, which is
a major weakness of Orion).

73, Bill


Re: K3 Specifications (.pdf) posted on Elecraft website <eom>

bill_w4zv <w0zv@...>
 

--- In Elecraft_K3@yahoogroups.com, "Simon Brown" <simon.brown@...> wrote:

http://radio.tentec.com/Amateur/Transceivers/TT565

Interesting - IMD3 dynamic range - The filter used in the Orion is not
stated (or I didn't see it).
Simon, ARRL always measures IMD3 with any 500 Hz optional filters
installed. For some reason, either due to measurement technique or
equipment differences, Ten-Tec's IMD3 specs for both Orion and Orion
II have always been optimistic by 6 to 8 dB. IMD3 performance at 2
kHz is typically 92 dB for Orion and 95 dB for Orion II, as measured
by ARRL, Sherwood Engineering, RSGB (G3SJX in Radcom Magazine) and
W8JI. Elecraft may have the same problem but we won't know until one
of the independent testers posts some results.

73, Bill


Re: [Elecraft_K3] K3 Specifications (.pdf) posted on Elecraft website <eom>

Simon Brown <simon.brown@...>
 

And here's the Sherwood table: http://www.sherweng.com/table.html

Simon Brown, HB9DRV

----- Original Message -----
From: "Simon Brown" <simon.brown@kns.ch>


Elecraft: http://www.elecraft.com/K3/K3_specs_072007.pdf
OrionII: http://radio.tentec.com/Amateur/Transceivers/TT565


Re: [Elecraft_K3] K3 Specifications (.pdf) posted on Elecraft website <eom>

Simon Brown <simon.brown@...>
 

Elecraft: http://www.elecraft.com/K3/K3_specs_072007.pdf

OrionII: http://radio.tentec.com/Amateur/Transceivers/TT565

Interesting - IMD3 dynamic range - The filter used in the Orion is not stated (or I didn't see it).

Simon Brown, HB9DRV

----- Original Message -----
From: "bill_w4zv" <w0zv@yahoo.com>


K3 Specifications (.pdf) posted on Elecraft website <eom>

bill_w4zv <w0zv@...>
 


K3 preliminary Specs

n6jw
 

Well, here is the first part of what we are all waiting for. I will
NOT be bothering Elecraft with questions (as per Wayne's request), but
discussion here is quite appropriate.

73

John, N6JW

-----------------

wayne burdick n6kr at elecraft.com
Fri Jul 20 16:33:22 EDT 2007

* Previous message: [Elecraft] Finger Dimple For Sale ;-)
* Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

On our K3 page, you'll now find a link to a .pdf version of the K3's
preliminary specs. We'll add an HTML version, too, probably next week.
Any of these specs may change pending further testing or design
changes.

PLEASE don't call or e-mail with questions about the specs. We'll add
or update specs as time permits. Discussion about the specs is fine, of
course and we'll be diligently reading the reflector. But I'd like to
ask in advance that any *arguments* about specs be taken off-line, so
Eric (our reflector cop) doesn't have to put the hammer down :)

Comment about RX specs:

Receive dynamic range (IMDDR3) is shown for 5 to 20 kHz offsets at
present, with the 400-Hz INRAD filter. We're trying to be conservative,
because testing organizations may get slightly different results due to
variations in equipment and procedures. Our own tests, conducted at
three separate locations, consistently show 102 to 105 dB at 5 kHz. We
also didn't list 2 kHz offset performance yet, because we're carefully
characterizing all filters. Typically, we're seeing low to mid 90's on
all filters. (Measuring the K3's dynamic range has been a challenge
because it's higher than anything we've dealt with before. We've had to
beef up our test gear to handle it.)

Again, please, NO phone calls or e-mails about specs -- this will just
slow down the engineering and support staff. We're dealing with many
details right about now, as you can imagine.

Thanks!

73,
Wayne
N6KR


Chat Room

Ian J Maude <ian@...>
 

Hi all,
Please feel free if you wish to use the following address for K3 related chat. There is a server password of sysopok on it.

irc.pa4ab.net 6667

Channel #K3

Ian

--
Ian J Maude G0VGS
SysOp GB7MBC DX Cluster
Member of RSGB, ARRL, GQRP
K2 #4044 | K3 #?


Re: [Elecraft_K3] Re: Good news... or bad?

Simon Brown <simon.brown@...>
 

----- Original Message -----
From: "Julian" <julian@g4ilo.com>

Those who want to be 100% sure of what the radio will do and when they
will receive it should have waited until Elecraft is in a position to
meet those requirements. Nobody forced them to pay a deposit.
I agree 100% - having lived my life shipping software products which are notorious for last-minute hitches (and the K3 has a LOT of software inside) I am very happy to wait until the end of August or even September if it means a less stressed-out Elecraft crew shipping a product they are happier with.

Simon HB9DRV


Re: [Elecraft_K3] Re: Good news... or bad?

Toby Deinhardt
 

Hallo,

I am one of the people who sent their order to Elecraft within the first 24 or
so hours after the announcement, and also I prepaid.

I see no reason to be worried that the shipping date has slipped or will slip.
According to Eric's last shipping status update, they are still on schedule and
still have ten days to go.

OTOH, if Elecraft feels they need a couple of extra weeks to perfect the radio,
then I'm all for them taking the extra time.

vy 73 de de toby

PS: Nonetheless I wish I could already be studying the manuals... ;-)


Re: [Elecraft_K3] Re: Good news... or bad?

Thom LaCosta <lacosta@...>
 

On Fri, 20 Jul 2007, Julian wrote:


Hear hear, Thom. This is not some faceless mega-corporation we are
talking about but a small company, run by hams, for hams. No doubt
Wayne and Eric could have sold out to a big concern and made a
fortune, or gone for an IPO and luxuriate in plush offices while the
hired staff do all the work. Instead, they have chosen to keep it to
themselves and work extremely hard. We should be willing to cut them
some slack because of this, if necessary.
<snip>

Those who want to be 100% sure of what the radio will do and when they
will receive it should have waited until Elecraft is in a position to
meet those requirements. Nobody forced them to pay a deposit.
Well said.

I suspect the shipping date has slipped/will slip. And as it does, I know that the Aptos Crew is working to have a superior product in our hands. So, I suspect I'll have a little more time to re-arrange the shack, get a better antenna up, and all sorts of things.

I might even setup am IRC Channel for K3 users....I have some up for QRP and Drake....now and again I have some chats with other users...Quite a few times
I used to to get feedback as I was working on the super-secret, super-inefficient, try not to electrocute the cat indoor antenna.

73,Thom-k3hrn
www.zerobeat.net Home of QRP Web Ring, Drakelist home page,Drake Web Ring,
QRP IRC channel, Drake IRC Channel, Elecraft Owners Database
www.tlchost.net/hosting/ *** Web Hosting as low as 3.49/month


Re: Good news... or bad?

Julian <julian@...>
 

--- In Elecraft_K3@yahoogroups.com, Thom LaCosta <lacosta@...> wrote:

I looked at the deposit as a participatory activity on my part. The
beta
testers are doing their thing, and those of us that ordered in the
first round
not only confirmed that the Aptos crew had a good idea, but the
money helps them
get it out the door.

As far as asking for a concession...perhaps you can develop a so
many dollars
per day plan...and then suggest that to Elecraft.

I think that anyone ordering a first run product that is scuh a radical
departure from the norm should not be surprized is there is a delay.
Hear hear, Thom. This is not some faceless mega-corporation we are
talking about but a small company, run by hams, for hams. No doubt
Wayne and Eric could have sold out to a big concern and made a
fortune, or gone for an IPO and luxuriate in plush offices while the
hired staff do all the work. Instead, they have chosen to keep it to
themselves and work extremely hard. We should be willing to cut them
some slack because of this, if necessary.

Because of the "family business" feel of Elecraft, many of us who have
been users of their products for a long time feel a bit like part of
the family. Plunking some money down was something I was happy to do
to get in the first run, but it was also a vote of confidence, and
also in realisation that to raise the startup costs commercially would
cost more, which would inevitably be passed to us the buyers anyway.

I'm quite happy for Elecraft to have a small interest free loan for a
couple of months to help get the K3 out the door. Nor am I going to
moan that it has cost me more because the dollar has weakened still
further against the pound since they took my deposit. I'm not going to
complain if the shipping date slips a couple of weeks - this is a risk
I knew I was taking, and it's not as if it is going to cause me any
actual hardship. And I'm not going to complain if there are a few
things that don't work quite right when the radio finally does arrive,
because I know that they are doing their best to get it right before
it ships and will continue to do so afterwards.

Those who want to be 100% sure of what the radio will do and when they
will receive it should have waited until Elecraft is in a position to
meet those requirements. Nobody forced them to pay a deposit.

Julian, G4ILO
G4ILO's Shack: www.g4ilo.com
Ham Directory: www.ham-directory.com


Re: Good news... or bad?

Joe Stofko <wb1aiu@...>
 

Hey! I'd be happy with a T-shirt or a hat, if I had to wait an
exceptionally lengthy period of time !!! ha! I mean, this is
Elecraft we are talking about here... not MFJ !!

Now... on to more positive things!.. If we gotta wait... we gotta
wait... I really DO want it to be "right the first time"!!

So... about the thread concering commercial DRM reception...

Joe - WB1AIU



--- In Elecraft_K3@yahoogroups.com, Thom LaCosta <lacosta@...> wrote:

On Thu, 19 Jul 2007, Joe Stofko wrote:

Sure, I am as anxious as everyone else... BUT, I would not want
to
wait an extra two months, or more, without some "concession" on
the
part of Elecraft. They've had a decent sized chunk of money from
me
since back in May...
I looked at the deposit as a participatory activity on my part.
The beta
testers are doing their thing, and those of us that ordered in the
first round
not only confirmed that the Aptos crew had a good idea, but the
money helps them
get it out the door.

As far as asking for a concession...perhaps you can develop a so
many dollars
per day plan...and then suggest that to Elecraft.

I think that anyone ordering a first run product that is scuh a
radical
departure from the norm should not be surprized is there is a
delay.


Thom,EIEIO
Email, Internet, Electronic Information Officer

73,Thom-k3hrn
www.zerobeat.net Home of QRP Web Ring, Drakelist home page,Drake
Web Ring,
QRP IRC channel, Drake IRC Channel, Elecraft Owners Database
www.tlchost.net/hosting/ *** Web Hosting as low as 3.49/month


Re: [Elecraft_K3] Re: Good news... or bad?

Thom LaCosta <lacosta@...>
 

On Thu, 19 Jul 2007, Joe Stofko wrote:

Sure, I am as anxious as everyone else... BUT, I would not want to
wait an extra two months, or more, without some "concession" on the
part of Elecraft. They've had a decent sized chunk of money from me
since back in May...
I looked at the deposit as a participatory activity on my part. The beta testers are doing their thing, and those of us that ordered in the first round not only confirmed that the Aptos crew had a good idea, but the money helps them get it out the door.

As far as asking for a concession...perhaps you can develop a so many dollars per day plan...and then suggest that to Elecraft.

I think that anyone ordering a first run product that is scuh a radical departure from the norm should not be surprized is there is a delay.


Thom,EIEIO
Email, Internet, Electronic Information Officer

73,Thom-k3hrn
www.zerobeat.net Home of QRP Web Ring, Drakelist home page,Drake Web Ring,
QRP IRC channel, Drake IRC Channel, Elecraft Owners Database
www.tlchost.net/hosting/ *** Web Hosting as low as 3.49/month


Re: Good news... or bad?

Joe Stofko <wb1aiu@...>
 

Craig,

I meant nothing negative, at all, with my comment and, am
somewhat surprised that you see it that way! I happen to agree that
I would prefer receiving a rig that was done right the first time,
rather than having to send it back. As for "leaving Elecraft alone"
I don't think my comment is a bother to Eric and the gang, at all.
Sure, I am as anxious as everyone else... BUT, I would not want to
wait an extra two months, or more, without some "concession" on the
part of Elecraft. They've had a decent sized chunk of money from me
since back in May...

Joe - WB1AIU

--- In Elecraft_K3@yahoogroups.com, "CR" <vk3he@...> wrote:

Why does it really matter?

I would rather have the product go out of the door right than have
Mk1, Mk2, and Mk3 etc. Even if the k3 is delayed for 2 extra
months
i would not care. I would rather prefer things being done right
than
have something thats been rushed out of the factory door.

While i appreciate everyones desire to own and get their hands on
the
rig that they have ordered, i think we should all leave Elecraft
alone until the K3 is released. I am sure Elecraft does not need
unfounded negative publicity based on minor constructive feedback
from
beta testers. After all the radio is not released yet and thats
just
part of the product development cycle.

Frankly there is no real alternative that will be as good as the
K3 on
the horizon yet. The K3 would be well worth the wait, even if
there
are delays and minor changes along the way!

Craig


--- In Elecraft_K3@yahoogroups.com, "Joe Stofko" <wb1aiu@> wrote:

Here are some comments from K3 beta tester, N6XI, posted on the
Elecraft reflector…

With statements like "… front panel labels are being revised.",
one
can only wonder if first flight shipments are still on track to
begin
next week.

Joe – WB1AIU

Date: Wed, 18 Jul 2007 23:42:38 -0700
From: "Rick Tavan N6XI" <rtavan@>
Subject: [Elecraft] K3 Update: It keeps getting better...
To: "Elecraft Reflector" <elecraft@>
Message-ID:
<4d9a7d550707182342uf1f6176macdcb578c8d8b69f@>
Content-Type: text/plain; charset=UTF-8; format=flowed

Folks keep asking me how the field test is going. I think it's
going
very well. Almost all the changes Elecraft has published have
been
software. The hardware I have seen is very stable. There were a
few
missing pull-up resistors and a ground jumper which we added
easily
in
the field. The front panel labels are being revised. But the
hardware
behind this software-defined radio is proving itself remarkably
close
to final detail and quality. So I have been telling those who
ask
that
the K3 field test is really SMOP, what we call in the software
industry a "simple matter of programming." That big job is
proceeding
well, with new features, fixes and tuneups coming through every
few
days. They are a snap to download and with each download the K3
keeps
getting better and better.

One of the more recent features added to the K3 software was
VOX. It
was worth the wait! This is one of the smoothest I've used and
the
anti-VOX is perfect. I've yet to have speaker audio trip it.
It's
easy
to adjust gain to match various microphones so that relaxed,
quiet
speech triggers the VOX instantly but normal breathing and
ambient
noise very rarely cause false triggers. Pickup is very fast - no
need
to prefix a transmission with "Uhh..." to avoid losing a
syllable.
There are no switching transients, either, so I can set the
delay
very
short. Superb!

73,

/Rick N6XI


Good news... or bad?

Joe Stofko <wb1aiu@...>
 

Here are some comments from K3 beta tester, N6XI, posted on the
Elecraft reflector…

With statements like "… front panel labels are being revised.", one
can only wonder if first flight shipments are still on track to begin
next week.

Joe – WB1AIU

Date: Wed, 18 Jul 2007 23:42:38 -0700
From: "Rick Tavan N6XI" <rtavan@gmail.com>
Subject: [Elecraft] K3 Update: It keeps getting better...
To: "Elecraft Reflector" <elecraft@mailman.qth.net>
Message-ID:
<4d9a7d550707182342uf1f6176macdcb578c8d8b69f@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed

Folks keep asking me how the field test is going. I think it's going
very well. Almost all the changes Elecraft has published have been
software. The hardware I have seen is very stable. There were a few
missing pull-up resistors and a ground jumper which we added easily
in
the field. The front panel labels are being revised. But the hardware
behind this software-defined radio is proving itself remarkably close
to final detail and quality. So I have been telling those who ask
that
the K3 field test is really SMOP, what we call in the software
industry a "simple matter of programming." That big job is proceeding
well, with new features, fixes and tuneups coming through every few
days. They are a snap to download and with each download the K3 keeps
getting better and better.

One of the more recent features added to the K3 software was VOX. It
was worth the wait! This is one of the smoothest I've used and the
anti-VOX is perfect. I've yet to have speaker audio trip it. It's
easy
to adjust gain to match various microphones so that relaxed, quiet
speech triggers the VOX instantly but normal breathing and ambient
noise very rarely cause false triggers. Pickup is very fast - no need
to prefix a transmission with "Uhh..." to avoid losing a syllable.
There are no switching transients, either, so I can set the delay
very
short. Superb!

73,

/Rick N6XI


Re: [Elecraft_K3] Does K3 have ALC input?

Jerry Flanders
 

Thanks, Toby.

Jerry

At 04:17 PM 7/17/2007, you wrote:

Does it have the ALC input? What does Elecraft call it?

Same for PTT control of an amp - picture doesn't show that either.
"KEY OUT" maybe?
This is explained in the FAQ on the Elecraft website:

What is the accessory connector used for?

The K3 has a rich set of I/O connections. In addition to the usual key
jack, paddle jack, etc., there is a 15-pin D-series connector. It
includes: band data, two configurable 5V logic inputs (e.g., for FSK)
and two configurable 5V logic outputs, remote power switch input, PTT,
key and auxbus (e.g., for a KRC2 or transverter). While this connector
looks like a VGA video connector, it is not. The K3 does not provide any
sort of video output. You can get a clear idea of the rest of the K3
I/O by looking at the rear panel drawing located on the back side (where
else?) of the K3 data sheet.

What is the pin-out for the DE-15 Accessory connector?

1 - DIG0 FSK? software definable TTL digital input (5V MAX!)
2 - AUXBUS
3 - BAND 1 Output (TTL)
4 - PTT input (in parallel with MIC jack PTT )
5 - COMMON (via 100 uH choke)
6 - DIG Out 0 (software definable TTL digital output)
7 - DIG1 Input software definable TTL digital input (5V MAX!)
8 - POWER (pull to ground with open collector or switch to turn K3 ON)
9 - BAND 2 Output (TTL)
10 - KEY-OUT (Same purpose as KEY-OUT on rear panel but lower current
rating. Suitable for accessories such as sequencers.)
11 - DIG Out 1 (software definable TTL digital output)
12 - COMMON (via 100 uH choke)
13 - BAND 0 Output (TTL)
14 - BAND 3 Output (TTL)
15 - ALC input (0 to +5V MAX)

vy 73 de toby
--
DD5FZ, 4N6FZ