Re: [Elecraft] Musings on a K4

[Stephen Prior]

On 26 July 2011 03:34, Wayne Burdick  wrote:

> If there's ever a K4, it'll be a game-changer, or we won't bother.
>
> As of right now we're very happy with the K3, thank you :)
>
> 73,
> Wayne
> N6KR
>
>

 My bank manager has just heaved a sigh of relief!

73, Stephen G4SJP
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[Elecraft] [K2] Paranoid question

[Giuseppe Sorrentino]

I made a disaster in cutting wires for windings of T4 binocular core. I now 
have not enough white wire for the work. The paranoid question isare the 
green and the white wires supplied with K2 kit the same??? Cause i have enough 
green wire for the 3 windings should be white and anough white wire for the 
windings should be green!
 
Tnx as usual

IZ2NYY
Giuseppe "Pippo" Sorrentino
Milano ITALY
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Re: [Elecraft] Musings on a K4

[Edward R. Cole]

Yes, a game changer:

Small 2x2x3 inch block containing an organic computer with 78-GHz 
waveguide flange with something like radiating fiberoptic interface 
to a set of eyeglasses with LCD display and direct aural nerve 
docking interface so one would only need to think the words which 
would be converted into Quantum-modulation.  Question is will it be 
ham radio?  oooweee beam me up!


73, Ed - KL7UW, WD2XSH/45
==
BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-?
DUBUS Magazine USA Rep dubus...@gmail.com
==

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Re: [Elecraft] Headphones & Speaker settings - no speaker OP

[Ron N5QQ]

Thanks but I left out one important fact for you, the LH radio speaker
works fine when SPKR+PH = YES, and I get both headphones and speaker
output. Part of the problem is I don't know how long it's been like
this, as I have had phones plugged in all the time, that is until this
weekend when I was rearranging the operating layouts.

On Monday, July 25, 2011, Don Wilhelm  wrote:
> Ron,
>
> Have you removed the top cover to check that the speaker connector is plugged 
> in.  If not, that is the first thing I would check.
>
> 73,
> Don W3FPR
>
> On 7/25/2011 5:26 PM, Ron N5QQ wrote:
>
> I have two K3's on the operating desk that are very similar except in
> one way and I can not fine the setting or configuration to correct it.
> At present both the rigs are set SPKRS+PH = NO and SPKRS = 1. This
> gives me the internal speaker only when headphones are not plugged in,
> and then headphones only (no speaker) when they are plugged in.
> BUT the LH rig gives me headphones when they are plugged in (no
> speaker) and NOTHING at all when the headphone jack is unplugged. This
> is acting like I have external speakers plugged in, which I don't
> have. Am I missing something obvious?
> At this time there is no SO2R mic/phones/cw controller involved and
> the only other connection is the interface to my PC (with N1MM).
> Ron
>
>
>
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Re: [Elecraft] KX3 - Pass Band Tuning and Optional Roofing Filter

[Don Wilhelm]

Bernie,

As I understand it, the KX3 will provide DSP filtering, which (like the 
K3) will be continuously variable from 3 kHz down to 100 Hz.

73,
Don W3FPR

On 7/26/2011 2:59 AM, Bernard Wills wrote:
> Hello from VK,
>
> The news of the KX3 has stopped my meandering amongst various 80's and some 
> modern HF rigs as I've been catching up with technology after about 15 years 
> of inactivity until 2008. I am sizing up what it will cost to get a KX3 on 
> air, and my current point of uncertainty (aside from no firm pricing 
> announced) is how much adjustment there will be in the filtering in a 
> standard KX3. By standard, I mean 'no optional roofing filter' with the specs 
> listed in the announcement. I have followed all postings since the Dayton 
> announcement, watched the video demo a number of times, and understand what 
> roofing filters do. I have some experience with DC transceivers (think HW-8).
>
>
> So as I see it, my question comes back to the mention of Pass Band Tuning. 
> Will the PBT in a 'standard' KX3 provide a continuously variable bandwidth 
> that would suit SSB, down to what I find useful for CW (say 500Hz)?
>
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Re: [Elecraft] [K2] Paranoid question

[Don Wilhelm]

Pippo,

Yes, you can use the green wire or any other wire of a similar size.  
The reason 2 colors are used is to have visual recognition for the 
primary and secondary windings.  If you use the same green wire, I 
suggest that you apply some paint or a permanent marker stripe to the 
wire so you can tell the difference between the two windings.

73,
Don W3FPR

On 7/26/2011 4:45 AM, Giuseppe Sorrentino wrote:
>  I made a disaster in cutting wires for windings of T4 binocular core. I 
> now have not enough white wire for the work. The paranoid question isare 
> the green and the white wires supplied with K2 kit the same??? Cause i have 
> enough green wire for the 3 windings should be white and anough white wire 
> for the windings should be green!
>
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[Elecraft] K4

[Chris Hembree]

I think that if Elecaft made a K4 that will do what the Kenwood radios will 
do.(UHF,VHF,1.2,SAT and so on) This will take away from what the K3 is all 
about.

Just my input..
Chris W7CTH
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Re: [Elecraft] K4

[Daniel Brown]

A purpose built VHF/UHF/uWave and Satellite focused rig would be great
- small section of the market, likely, but would be great for those of
us who are interested there.

73,
N8YSZ.

On Tue, Jul 26, 2011 at 9:01 AM, Chris Hembree  wrote:
> I think that if Elecaft made a K4 that will do what the Kenwood radios will 
> do.(UHF,VHF,1.2,SAT and so on) This will take away from what the K3 is all 
> about.
>
> Just my input..
> Chris W7CTH




-- 
Dan Brown
br...@brauhaus.org
http://www.brauhaus.org
http://www.dc-beer.org
http://photos.brauhaus.org
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Re: [Elecraft] Musings on a K4

[Gary Gregory]

Ed,

The LCD display would need to be holographic in nature in keeping with the
'Game Changer' mantra.

Grin

Gary

On 26 July 2011 19:18, Edward R. Cole  wrote:

> Yes, a game changer:
>
> Small 2x2x3 inch block containing an organic computer with 78-GHz
> waveguide flange with something like radiating fiberoptic interface
> to a set of eyeglasses with LCD display and direct aural nerve
> docking interface so one would only need to think the words which
> would be converted into Quantum-modulation.  Question is will it be
> ham radio?  oooweee beam me up!
>
>
> 73, Ed - KL7UW, WD2XSH/45
> ==
> BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
> EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-?
> DUBUS Magazine USA Rep dubus...@gmail.com
> ==
>
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-- 

VK4FD - Motorhome Mobile
Elecraft Equipment
K3 #679, KPA-500 #018
Living the dream!!!
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[Elecraft] K4 musings

[Craig D. Smith]

As long as we are in "dream mode", here's mine:

160 thru 10 meters
CW only
200 W output
Multi-color display
Built in power supply
Built in "P3" processing functionality but only VGA connector for external
display
Internal and remote external tuner options

73   Craig   AC0DS


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Re: [Elecraft] KX3 - Pass Band Tuning and Optional Roofing Filter

[Bernard Wills]

Thanks, Don.

I will speak with a local club member who has a K3 (and K2/100) and find out 
more. Some other postings received today have also helped me to see what is 
intended for the KX3 PBT/roofing filter arrangements. I've tried the IF-stage 
DSP in the Yaesu FT-450D. It has about three pre-set bandwidths per mode (CW 
and SSB anyway); continuous b/w obviously looks more attractive.

Cheers, Bernie. VK2BLW.




>
>From: Don Wilhelm 
>To: Bernard Wills 
>Cc: "elecraft@mailman.qth.net" 
>Sent: Tuesday, 26 July 2011 10:22 PM
>Subject: Re: [Elecraft] KX3 - Pass Band Tuning and Optional Roofing Filter
>
>Bernie,
>
>As I understand it, the KX3 will provide DSP filtering, which (like the 
>K3) will be continuously variable from 3 kHz down to 100 Hz.
>
>73,
>Don W3FPR
>
>On 7/26/2011 2:59 AM, Bernard Wills wrote:
>> Hello from VK,
>
>
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Re: [Elecraft] Musings on a K4

[David Yarnes]

K3UJ's hypohetical musings on something like a "K2.5" are bound to be 
answered eventually in some form or fashion by the folks at Elecraft.  I 
have no idea if that is precisely where they will focus, but one thing I 
know for sure--Wayne and Eric are not the least bit lacking in imagination! 
That fact has been proven several times, and most recently with the 
announcement of the KX3.  Half the fun of being an Elecraft devotee is 
staying tuned in to see what they will come up with next.  They have 
judiciously added talent to the team to the point that I doubt there is much 
they couldn't produce, provided it made sense to do it.  The trick is to 
keep all this talent effectively busy, so I strongly suspect there are a 
number of things on the drawing board right now.  We just have to wait and 
see what's next.  It's kind of like Christmas, except it can come at any 
time!

Dave W7AQK






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[Elecraft] KC9EHQ KSB2 Diode Problem SOLVED!!!

[David Dietrich]

Everyone,

It looks like I solved the diode problem on my new KSB2 board!!!  After taking 
a day off from building, due to yesterday being a work day, I came back this 
morning and took some desoldering wick to see if there was anything in the 
diode holes.  There was some stuff in there, and I managed to get all of the 
diodes in!  CRISIS AVERTED!!  The KSB2 build can continue.

I will post more pics soon, and let the group know.

73,

David
KC9EHQ
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[Elecraft] KX3 and Quadarature down-sampling

[Gary D Krause]

I've been wondering what Quadarature down-sampling is?  This is the first that 
I have heard of it.

Gary,
N7HTS



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[Elecraft] OT: Announcing the Fort Tuthill Arizona 2011 QRP Conferenceand Campout!!

[David Yarnes]

Hi All,

Hopefully with Eric's acceptance, I am forwarding an announcement by John 
Stevens regarding our upcoming QRP gathering at Ft. Tuthill.  It's this 
coming weekend!

Some of you may remember, or even have attended, what we used to have going 
annually at Ft. Tuthill.  It was a much larger hamfest, and the QRPer's 
(mainly enhanced by activities sponsored by the Arizona ScQRPions QRP 
group), had a great "event within and event", similar to FDIM but obviously 
smaller.  Nonetheless, we had a rapidly growing gathering until the other 
Arizona ham clubs botched everything by moving the big hamfest.

Anyway, the ScQRPions, for the last 3 years or so, have returned the QRP 
event to Ft. Tuthill.  We have camping, a big cookout, seminars, and 
generally a bunch of fun, albeit with a smaller crowd.  Everyone is welcome 
though, and if you don't camp, Flagstaff is loaded with motels.  And you 
don't have to be a QRPer to participate---it's only sponsored by QRPer's. 
We have a lot of fun, but we could always have even more if more people 
came.  Ft. Tuthill is a great venue for this sort of thing, and just a mile 
or two from the middle of Flagstaff.  You will find a bunch of Elecraft fans 
there too, of course.

I know it's a bit late to be telling you all this, but hey--just take a 
chance and come!  It's 7000 feet up, and in the pines!  Hopefully some of 
you, within driving distance, didn't have anything better to do this weekend 
anyway!  Hi.

Dave W7AQK
- Original Message - 
From: "John Stevens" 
Sent: Monday, July 25, 2011 9:11 PM
Subject: [qrp-l.org] Announcing the Fort Tuthill Arizona 2011 QRP Conference 
and Campout!!


My apologies.  I intended to send out the following updated Fort
Tuthill QRP Conference and Campout information, but did an old one
instead...   73  john


It's time again for the Arizona ScQRPions 2011 QRP Conference and
Campout at the Fort Tuthill campgrounds near Flagstaff Arizona on July
28, 29, and 30!! You don't have to be a QRPer as many of our programs
are of general interest. Our website at http://www.azscqrpions.com
has the details with links to maps to our activities.

Our lineup of presenters this year is:

Dan Butler (N7XQA) of Microchip with a PIC microcontroller Tutorial

Steve Galchutt (wG0AT - Goat hiker) Rooster and Peanut and their adventures

Bob Finch (W9YA) "What the Antenna Said"

Mark Brueggemann (K5LXP) ARRL Techinical Specialist – QRP/P K5LXP style!

Fred Maas (KT5X) with the presentation "SOTA - Do It With Less!"
combines Trail Running with operating Summits On The Air (SOTA) with
radios so small...

Early bird camping begins Thursday afternoon July 28th. Stake out
your territory at the campgrounds.

Steve (wG0AT), Rooster, Peanut, and Fred (KT5X) plan an early Friday
morning SOTA assault on Mt. Elden on the edge of Flagstaff. Get an
early start to avoid the heat and T-Storms and hike with the boys or,
for those of us less fit, drive up, meet them at the summit and do
some operating! Steve and Fred will cover 20m, but could use more ops
on VHF/UHF and other HF frequencies. Ops in Phoenix and other
surrounding cities should have no trouble working them. Be sure to
also listen for them on the trip down on Thursday from other SOTA
sites in NM and AZ.

Friday July 29th is also the day where YOU become the activities!!
This is your chance to show off what you like to do in your corner of
Ham Radio! BRING A DEMO. SHOW US WHAT YOU DO AND HOW IT WORKS! Do
satellites? What do you use for tracking software. Work a few birds
from the campground. Brag a little. Brag a lot! Built an
interesting new gadget? Bring it. Are you a weak signal guy?
Operate 6m Meteor Scatter and WSPR? Do just WSPR? JT65? Bring that
and show yourself on the Reverse Beacon Network running 2 mW output.
Remote control your radio? How does THAT work? Have a hot new
antenna design? Bring it and we'll put the Vector Network Analyzer on
it and see how it measures up. Anyway, you get the idea!!

Of course you can always visit with old friends and make new ones.
Bring some trading material for an informal swapmeet on Friday. Some
will set up stations and antennas to operate. This is your day. And
at the end of the day Friday, enjoy a group dinner at a local
restaurant just outside the park entrance South toward Sedona or
perhaps a little something from the Beaver Street Brewery...

Saturday, July 30th is the day for all the forums. You can see from
the list of presenters above, this will be an interesting day! Top it
all off with the Saturday night picnic and campfires. No rainouts
allowed as we have reserved a covered ramada for 250 happy hams just in 
case.

We are looking forward to seeing and meeting you all at 7500' in the
cool Ponderosa pines of Northern Arizona!

Y'all come!

73 john K5JS

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Re: [Elecraft] [k2] Poor USB audio after cal

[Alan D. Wilcox]

Don,
As an Apple/PC/Linux user (and former PC-only person), let me clarify a 
bit ...

I switched to Apple because the hardware AND software are robust and not 
given to blue screens or the likes. Linux offered robust software (same 
Unix thinking that's in Apple OS), but few applications that I needed.

Now I use Apple Mac Pro, 14 GB memory, and Mac OS-X with mostly Mac 
application software. It's solid and runs 24-7.

I run Parallels http://parallels.com as an application, and that 
provides for hosting virtual machines, or VMs. One VM I run is Windows 
7, and that allows me to run all the Windows apps I want that aren't 
available on Apple ... GSDR, many amateur apps, etc. Another VM I run is 
Win-XP for the apps that won't play on Win-7. Also have SUSE on yet 
another VM.

When I have multiple VMs running, they're all visible on my LAN as 
distinct computers for file transfer. Nicer yet, Parallels implements 
the clipboard so I can copy and paste from one VM to the other directly. 
Eg, I can copy text from NotePad and paste it directly into any Apple app.

You CAN have your cake and eat it too.

Cheers, Alan

Alan D. Wilcox, W3DVX (K2-5373, K3-40)
570-321-1516
http://WilcoxEngineering.com
http://eBookEditor.net
https://www.smashwords.com/books/view/28062?ref=awilcox
Williamsport, PA 17701


On 7/25/11 9:20 PM, Don Wilhelm wrote:
> Damon,
>
> I will not comment on the MAC/PC situation, but the injection of the
> Signalink USB may be suspect.
>
> I am not a MAC user, so I cannot comment intelligently.  I gave up on
> Apple after the Apple II because of the proprietary nature of the
> software - either you bought Apple software at an inflated price or you
> did not have the function.  So I settled on the PC software that was
> available both in open source and purchased for much less than Apple
> wanted for the same function.  What I *can* say about Apple software is
> that it works and is intuitive from the user's perspective, and all that
> is not bad.
>
> BTW, Windows is going the same route as Apple IMHO, so the "upgrade" to
> Win XP for me may be Ubuntu - goodbye to some of my favorite
> applications until I find Linux equivalents.  Such is life with computers.
>
> 73,
> Don W3FPR
>
> On 7/25/2011 8:58 PM, KC5CQW wrote:
>> Problem solved.
>> It turned out to be a computer/software problem.
>> I had to use a PC (yuk) with a direct patch cord instead of my Mac G5 with
>> Signalink USB.
>> All is well again.
>>
>> 73, Damon
>>
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Re: [Elecraft] Musings on a K4

[Alan Bloom]

On Tue, 2011-07-26 at 07:17 -0700, David Yarnes wrote:
> ... They have 
> judiciously added talent to the team to the point that I doubt there is much 
> they couldn't produce, provided it made sense to do it.  The trick is to 
> keep all this talent effectively busy, ...

They do an excellent job of that!

Alan N1AL


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Re: [Elecraft] KX3 and Quadarature down-sampling

[Alan Bloom]

On Tue, 2011-07-26 at 08:44 -0600, Gary D Krause wrote:
> I've been wondering what Quadarature down-sampling is?  This is the first 
> that 
> I have heard of it.

It's like a two-channel direct-conversion receiver.  The two channels
are on the same frequency but use local oscillators that are 90 degrees
out of phase.  With suitable processing, the in-phase (I) and quadrature
(Q) mixer outputs give both the amplitude and phase of the signal.
Among other things, that makes it possible to suppress the unwanted
sideband of an SSB signal without a crystal filter.

Alan N1AL


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[Elecraft] Focus on the KAT-500

[Fred Atchley]

With all the chatter (which is good) about K4s, color displays, DC to
daylight coverage and you name it; I hope that Elecraft keeps its focus on
completing the "K" line with the KAT-500. The synergism between the K3, P3 &
KPA-500 is perfect with the exception of using the KPA-500's output to the
fullest. It would be complete for me, with limited antenna possibilities, if
there was a "matching" capability at the end-of-the-pipe. 

In my opinion, the KAT-500 will be a HUGE multiplier in the success of the
"K" line.

Eric and Wayne, can you give us an update?

73, Fred, AE6IC, K-line

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Re: [Elecraft] Focus on the KAT-500

[Wayne Burdick]

We're well into the KAT500 prototyping process, Fred. But that still  
leaves a few ounces of gray matter and one hand free for typing.

W

On Jul 26, 2011, at 8:09 AM, Fred Atchley wrote:

> With all the chatter (which is good) about K4s, color displays, DC to
> daylight coverage and you name it; I hope that Elecraft keeps its  
> focus on
> completing the "K" line with the KAT-500. The synergism between the  
> K3, P3 &
> KPA-500 is perfect with the exception of using the KPA-500's output  
> to the
> fullest. It would be complete for me, with limited antenna  
> possibilities, if
> there was a "matching" capability at the end-of-the-pipe.
>
> In my opinion, the KAT-500 will be a HUGE multiplier in the success  
> of the
> "K" line.
>
> Eric and Wayne, can you give us an update?
>
> 73, Fred, AE6IC, K-line
>
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[Elecraft] KX3 and Quadarature down-sampling

[Johnny Siu]

Hello Alan,
 
I have limited knowledge of radio.
 
Is that the operation theory of quadarature down-sampling something similar to 
the image rejection mixer in the IC7800?
 
Excuse me if I ask a stupid question.

TNX & 73,


Johnny VR2XMC

從︰ Alan Bloom 
收件人︰ Gary D Krause 
副本(CC)︰ Elecraft 
傳送日期︰ 2011年07月26日 (週二) 11:08 PM
主題︰ Re: [Elecraft] KX3 and Quadarature down-sampling

On Tue, 2011-07-26 at 08:44 -0600, Gary D Krause wrote:
> I've been wondering what Quadarature down-sampling is?  This is the first 
> that 
> I have heard of it.

It's like a two-channel direct-conversion receiver.  The two channels
are on the same frequency but use local oscillators that are 90 degrees
out of phase.  With suitable processing, the in-phase (I) and quadrature
(Q) mixer outputs give both the amplitude and phase of the signal.
Among other things, that makes it possible to suppress the unwanted
sideband of an SSB signal without a crystal filter.

Alan N1AL


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[Elecraft] Focus on the KAT-500

[Johnny Siu]

Yes, Fred.  I am also waiting for an overall cost picture of KPA500+KAT500. For 
an overseas user like me, it would be better to order KPA500+KAT500 in one go 
to save some shipping costs.


TNX & 73,


Johnny VR2XMC

從︰ Fred Atchley 
收件人︰ Elecraft@mailman.qth.net
傳送日期︰ 2011年07月26日 (週二) 11:09 PM
主題︰ [Elecraft] Focus on the KAT-500

With all the chatter (which is good) about K4s, color displays, DC to
daylight coverage and you name it; I hope that Elecraft keeps its focus on
completing the "K" line with the KAT-500. The synergism between the K3, P3 &
KPA-500 is perfect with the exception of using the KPA-500's output to the
fullest. It would be complete for me, with limited antenna possibilities, if
there was a "matching" capability at the end-of-the-pipe. 

In my opinion, the KAT-500 will be a HUGE multiplier in the success of the
"K" line.

Eric and Wayne, can you give us an update?

73, Fred, AE6IC, K-line

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[Elecraft] (no subject)

[Gary D Krause]

Thanks for the explanation, Alan. So, my next question is, how does it compare 
with a crystal filter? It is better? Does it give you more flexibility with 
filtering?

Thanks,
Gary, N7HTS


On Tue, 26 Jul 2011 08:08:38 -0700
  Alan Bloom  wrote:

 On Tue, 2011-07-26 at 08:44 -0600, Gary D Krause wrote:

 I've been wondering what Quadarature down-sampling is? This is the 
first that I have heard of it.


 It's like a two-channel direct-conversion receiver. The two channels
 are on the same frequency but use local oscillators that are 90 degrees
 out of phase. With suitable processing, the in-phase (I) and quadrature
 (Q) mixer outputs give both the amplitude and phase of the signal.
 Among other things, that makes it possible to suppress the unwanted
 sideband of an SSB signal without a crystal filter.

 Alan N1AL



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Re: [Elecraft] OT: Announcing the Fort Tuthill Arizona 2011 QRPConferenceand Campout!!

[Kevin Rock]

Hi Dave,

Is it going to be warm there?  Today I have to start a fire because it is  
getting too cold to type.  Ft. Tuthill sounds like fun.  I have been to  
Flagstaff a few times.  Once for the observatory and another time just to  
go camping.  When I lived in Albuquerque Flagstaff was the place to go  
when it got hot.  The smell of pine was very nice.  Here in Oregon, well  
on the coast side anyway, we do not have pines.  Just fir and cedar which  
smell quite different.  The lodgepole pine don't begin until east of the  
Cascades.

Have fun and remember there is a nice observatory nearby.  Percival Lowell  
created the Flagstaff Observatory because of the very transparent skies in  
the area.  Even though Pluto is no longer considered a planet :( Clyde  
Tombaugh used the Flagstaff Observatory's Clarke refractor to find it.   
http://www.bobspixels.com/kaibab.org/other/gc_oa_lo.htm

The pine trees around the campground allow one to toss an antenna up with  
no problem.  I used a home brew dipole from there with my K2.  The  
batteries were recharged each day with the ever present, intense SW  
sunshine.  I wish solar cells worked as well here!  Don't forget your  
sunblock and a LOT of water.

Enjoy the mountain air and be aware of the fire danger in the Southwest.
73,
   Kevin.  KD5ONS


On Tue, 26 Jul 2011 07:50:23 -0700, David Yarnes  wrote:

> Hi All,
>
> Hopefully with Eric's acceptance, I am forwarding an announcement by John
> Stevens regarding our upcoming QRP gathering at Ft. Tuthill.  It's this
> coming weekend!
>
> Some of you may remember, or even have attended, what we used to have  
> going
> annually at Ft. Tuthill.  It was a much larger hamfest, and the QRPer's
> (mainly enhanced by activities sponsored by the Arizona ScQRPions QRP
> group), had a great "event within and event", similar to FDIM but  
> obviously
> smaller.  Nonetheless, we had a rapidly growing gathering until the other
> Arizona ham clubs botched everything by moving the big hamfest.
>
> Anyway, the ScQRPions, for the last 3 years or so, have returned the QRP
> event to Ft. Tuthill.  We have camping, a big cookout, seminars, and
> generally a bunch of fun, albeit with a smaller crowd.  Everyone is  
> welcome
> though, and if you don't camp, Flagstaff is loaded with motels.  And you
> don't have to be a QRPer to participate---it's only sponsored by QRPer's.
> We have a lot of fun, but we could always have even more if more people
> came.  Ft. Tuthill is a great venue for this sort of thing, and just a  
> mile
> or two from the middle of Flagstaff.  You will find a bunch of Elecraft  
> fans
> there too, of course.
>
> I know it's a bit late to be telling you all this, but hey--just take a
> chance and come!  It's 7000 feet up, and in the pines!  Hopefully some of
> you, within driving distance, didn't have anything better to do this  
> weekend
> anyway!  Hi.
>
> Dave W7AQK
> - Original Message -
> From: "John Stevens" 
> Sent: Monday, July 25, 2011 9:11 PM
> Subject: [qrp-l.org] Announcing the Fort Tuthill Arizona 2011 QRP  
> Conference
> and Campout!!
>
>
> My apologies.  I intended to send out the following updated Fort
> Tuthill QRP Conference and Campout information, but did an old one
> instead...   73  john
>
>
> It's time again for the Arizona ScQRPions 2011 QRP Conference and
> Campout at the Fort Tuthill campgrounds near Flagstaff Arizona on July
> 28, 29, and 30!! You don't have to be a QRPer as many of our programs
> are of general interest. Our website at http://www.azscqrpions.com
> has the details with links to maps to our activities.
>
> Our lineup of presenters this year is:
>
> Dan Butler (N7XQA) of Microchip with a PIC microcontroller Tutorial
>
> Steve Galchutt (wG0AT - Goat hiker) Rooster and Peanut and their  
> adventures
>
> Bob Finch (W9YA) "What the Antenna Said"
>
> Mark Brueggemann (K5LXP) ARRL Techinical Specialist – QRP/P K5LXP style!
>
> Fred Maas (KT5X) with the presentation "SOTA - Do It With Less!"
> combines Trail Running with operating Summits On The Air (SOTA) with
> radios so small...
>
> Early bird camping begins Thursday afternoon July 28th. Stake out
> your territory at the campgrounds.
>
> Steve (wG0AT), Rooster, Peanut, and Fred (KT5X) plan an early Friday
> morning SOTA assault on Mt. Elden on the edge of Flagstaff. Get an
> early start to avoid the heat and T-Storms and hike with the boys or,
> for those of us less fit, drive up, meet them at the summit and do
> some operating! Steve and Fred will cover 20m, but could use more ops
> on VHF/UHF and other HF frequencies. Ops in Phoenix and other
> surrounding cities should have no trouble working them. Be sure to
> also listen for them on the trip down on Thursday from other SOTA
> sites in NM and AZ.
>
> Friday July 29th is also the day where YOU become the activities!!
> This is your chance to show off what you like to do in your corner of
> Ham Radio! BRING A DEMO. SHOW US WHAT YOU DO AND HOW IT WORKS!

[Elecraft] KX3 Musing..

[Dave KK7SS]

(Tongue firmly in cheek..)

The "Ultimate" KX3 would 'obviously' have a 160M->2M Fractal Patch antenna 
built into the top of the case...  Lyle?

Flame-proof suit is "ON"

--
Dave G  KK7SS
 Richland, WA

'59 Morris Minor 1000 - working on it..
'65 Sprite - in process :(
'76 Midget - co-owned with #4 Son :)
'06 Honda Civic Hybrid
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Re: [Elecraft] Quadrature down-sampling

[Don Wilhelm]

Gary,

That part has nothing to do with the filtering - the next step is to 
convert both the I and Q signals to digital and do the manipulation 
mathematically - that includes filtering, detection, and most other 
signal processing functions.  The result is then converted to an analog 
audio signal for the final amplification.

Yes, the amount of flexibility is limited only by the amount of DSP code 
and speed of the DSP processing - all manner of "magic" can be performed 
once the signal is placed into the digital "number soup".

That is the normal process for a Software Defined Radio - some use a 
computer soundcard to do the digital/analog conversion and the processor 
does the computation, but there is no reason why that process cannot be 
done using a dedicated processor.  The K3 already works the same way, 
but the frequency for the ADC is higher - that really makes little 
difference.  Using the mixer to convert directly to baseband is quite 
common in SDR receivers.  While we are getting close to the time when 
direct digital sampling from the antenna is feasible, it is not yet 
available at a price we would want to pay.

73,
Don W3FPR

On 7/26/2011 11:43 AM, Gary D Krause wrote:
> Thanks for the explanation, Alan. So, my next question is, how does it compare
> with a crystal filter? It is better? Does it give you more flexibility with
> filtering?
>
> Thanks,
> Gary, N7HTS
>
>
> On Tue, 26 Jul 2011 08:08:38 -0700
>Alan Bloom  wrote:
>
>   On Tue, 2011-07-26 at 08:44 -0600, Gary D Krause wrote:
>
>   I've been wondering what Quadarature down-sampling is? This is the
> first that I have heard of it.
>
>
>   It's like a two-channel direct-conversion receiver. The two channels
>   are on the same frequency but use local oscillators that are 90 degrees
>   out of phase. With suitable processing, the in-phase (I) and quadrature
>   (Q) mixer outputs give both the amplitude and phase of the signal.
>   Among other things, that makes it possible to suppress the unwanted
>   sideband of an SSB signal without a crystal filter.
>
>   Alan N1AL
>
>
>
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Re: [Elecraft] K4

[Andy McMullin]

I concur there. Wouldn't take the K3 market, but rather open a new one that  
appears to be not as well supplied. I'd go for it. 

-- 
sent whilst mobile;
Andy, G8TQH

On 26 Jul 2011, at 14:08, Daniel Brown wrote:

> A purpose built VHF/UHF/uWave and Satellite focused rig would be great
> - small section of the market, likely, but would be great for those of
> us who are interested there.
> 
> 73,
> N8YSZ.
> 
> On Tue, Jul 26, 2011 at 9:01 AM, Chris Hembree  wrote:
>> I think that if Elecaft made a K4 that will do what the Kenwood radios will 
>> do.(UHF,VHF,1.2,SAT and so on) This will take away from what the K3 is all 
>> about.
>> 
>> Just my input..
>> Chris W7CTH
> 
> 
> 
> 
> -- 
> Dan Brown
> br...@brauhaus.org
> http://www.brauhaus.org
> http://www.dc-beer.org
> http://photos.brauhaus.org
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Re: [Elecraft] KX3 Musing..

[Kevin Rock]

I think 160m to 2m is asking a little much from a fractal patch antenna.   
But from 20m to 2m should be within the ballpark of a dedicated antenna  
designer.  I don't think there is enough space on the rig for those lower  
bands.  But some of the grad students at the U of New Mexico were working  
on just such things during my time there.  My advisor was the one leading  
that research.  Professor Christos Christodoulou.  Lots of interesting  
design notes in his CV.
73 and GL on that fractal patch design!
   Kevin.  KD5ONS
   Residing in the suburbs of Buxton, Oregon






On Tue, 26 Jul 2011 09:14:56 -0700, Dave KK7SS  wrote:

> (Tongue firmly in cheek..)
>
> The "Ultimate" KX3 would 'obviously' have a 160M->2M Fractal Patch  
> antenna built into the top of the case...  Lyle?
>
> Flame-proof suit is "ON"
>
> --
> Dave G  KK7SS
>  Richland, WA
>
> '59 Morris Minor 1000 - working on it..
> '65 Sprite - in process :(
> '76 Midget - co-owned with #4 Son :)
> '06 Honda Civic Hybrid
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Re: [Elecraft] relevance of "asking Elecraft list..."

[Terry Schieler]

Please allow me to echo John's comment below.  Many of the current Elecraft
reflector members became Elecraft users because early in their career they
were enamored with the building of Heathkit radios.  So, many of the members
of this reflector come armed with a great deal of widespread talent and
knowledge.  I see a connection here too, and I also applaud the moderators
for allowing members to share their vast knowledge, even if it seems to be
"general" in nature to some.

Terry, W0FM


-Original Message-
From: John Ragle [mailto:tpcj1...@crocker.com] 
Sent: Monday, July 25, 2011 2:10 PM
To: elecraft
Subject: [Elecraft] relevance of "asking Elecraft list..."

I subscribe to (am the victim of?) a number of list servers, and find 
the Elecraft list to be a much more general font of wisdom than most. 
The few characters it takes to transfer a short message to the list 
don't really constitute wasteful and burdensome traffic in the modern 
age, and I commend the Elecraft list monitor for exercising some 
forbearance on most off-topic threads...like this one.

John Ragle -- W1ZI


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Re: [Elecraft] KX3 and Quadarature down-sampling

[Alan Bloom]

Hi Johnny,

I'm not familiar with the IC7800, but in general an image-reject mixer
uses the same basic principle.  It's the same as the "phasing" method of
SSB generation used 50 years ago, except that they didn't use the word
"quadrature" or "I/Q" in those days.

Alan N1AL


On Tue, 2011-07-26 at 23:31 +0800, Johnny Siu wrote:
> Hello Alan,
>  
> I have limited knowledge of radio.
>  
> Is that the operation theory of quadarature down-sampling something
> similar to the image rejection mixer in the IC7800?
>  
> Excuse me if I ask a stupid question.
> 
> TNX & 73,
> 
> 
> Johnny VR2XMC
> 
> 從︰ Alan Bloom 
> 收件人︰ Gary D Krause 
> 副本(CC)︰ Elecraft 
> 傳送日期︰ 2011年07月26日 (週二) 11:08 PM
> 主題︰ Re: [Elecraft] KX3 and Quadarature down-sampling
> 
> On Tue, 2011-07-26 at 08:44 -0600, Gary D Krause wrote:
> > I've been wondering what Quadarature down-sampling is?  This is the first 
> > that 
> > I have heard of it.
> 
> It's like a two-channel direct-conversion receiver.  The two channels
> are on the same frequency but use local oscillators that are 90 degrees
> out of phase.  With suitable processing, the in-phase (I) and quadrature
> (Q) mixer outputs give both the amplitude and phase of the signal.
> Among other things, that makes it possible to suppress the unwanted
> sideband of an SSB signal without a crystal filter.
> 
> Alan N1AL
> 
> 
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> 


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[Elecraft] WSPR

[Ken Roberson]

Hello All,

Is there any WSPR stations transmitting on 500 KHZ ( 600 Meters )
in the lower 48 states ?

Thanks to All
Ken K5DNL
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Re: [Elecraft] WSPR

[Dave New, N8SBE]

Shouldn't be, since the special authorization for 600 meters expired in
the US at the end of 2010.

A shame, too, since I was the lucky(?) winner of the 600m transverter
kit at the 2011 FDIM.

I ended up doing some swapping with the rep and got a dual band 40 and
20 meter receiver kit, instead.

73,

-- Dave, N8SBE

>  Original Message 
> Subject: [Elecraft] WSPR
> From: Ken Roberson 
> Date: Tue, July 26, 2011 3:15 pm
> To: Elecraft Elecraft 
>
>
> Hello All,
>
> Is there any WSPR stations transmitting on 500 KHZ ( 600 Meters )
> in the lower 48 states ?
>
> Thanks to All
> Ken K5DNL
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Re: [Elecraft] WSPR

[Dave Sergeant]

On 26 Jul 2011 at 13:10, Dave New, N8SBE wrote:

> Shouldn't be, since the special authorization for 600 meters expired in
> the US at the end of 2010.
> 

Really? That certainly doesn't seem to be the case if you visit 
http://www.500kc.com/

There is also WSPR activity in the UK on 500kHz. G4JNT runs a beacon on 
503.7kHz (see http://groups.google.com/group/uk500khz/web/multi-
function-beacon-by-andy-g4jnt) and I know there are others. But you 
probably won't hear them in the USA at this time of the year?

I was on 500kHz a few years ago, but only on CW. See 
http://www.davesergeant.com/mf

73 Dave G3YMC

http://www.davesergeant.com

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Re: [Elecraft] WSPR

[Dave New, N8SBE]

Sorry, that's 80 and 40 meters (not 40 and 20).  The kits were from
JUMA.  I note on their web page, that after Jul 31 of this year, they
will lose their distributor of kits, and so they not be available
anymore.  If you enjoy (?!) soldering surface mount, this may be your
last chance for a while to pick up some nice QRP kits.

Sorry for the commercial nature of the message.  I'm not tied to these
folks in any way, other than having a (still unassembled) receiver kit.

73,

-- Dave, N8SBE

>  Original Message 
> Subject: Re: [Elecraft] WSPR
> From: "Dave New, N8SBE" 
> Date: Tue, July 26, 2011 4:10 pm
> To: "Ken Roberson" 
> Cc: Elecraft Elecraft 
>
>
> Shouldn't be, since the special authorization for 600 meters expired in
> the US at the end of 2010.
>
> A shame, too, since I was the lucky(?) winner of the 600m transverter
> kit at the 2011 FDIM.
>
> I ended up doing some swapping with the rep and got a dual band 40 and
> 20 meter receiver kit, instead.
>
> 73,
>
> -- Dave, N8SBE
>
> >  Original Message 
> > Subject: [Elecraft] WSPR
> > From: Ken Roberson 
> > Date: Tue, July 26, 2011 3:15 pm
> > To: Elecraft Elecraft 
> >
> >
> > Hello All,
> >
> > Is there any WSPR stations transmitting on 500 KHZ ( 600 Meters )
> > in the lower 48 states ?
> >
> > Thanks to All
> > Ken K5DNL
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[Elecraft] 100 and 50 hz DSP filtering

[Tommy Alderman]

I asked this question almost a year ago but my other brain cell forgot the
answer(s) I got, so in advance I apologize for the redundant question.

On my K3, I have switched between the FIR and the IIR filters when I have
the DSP filters set to either 100 hz or 50 hz, and can tell no improvement.
Why is it that there is a significant drop in signal level (on CW) when
either of those two filter widths are selected? And/or how can I fix the
signal level decrease?

Thanks and 73,

Tom - W4BQF


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Re: [Elecraft] 100 and 50 hz DSP filtering

[lyle johnson]

You are probably using Rx EQ and have your preferred 
sidetone pitch peaked to something more than 0 dB.  RxEQ 
is not available at these two narrow bandwidths.

Note:  It seems that many people believe that the Rx EQ is 
an *additional* filter cascaded with the normal DSP 
filter.  It is not.

In general, if you want to apply RxEQ shaping in CW mode, 
I recommend that you set your preferred sidetone pitch to 
0 dB and use cuts on either side, or for whatever shaping 
you prefer, and not use any peaking above 0 dB.  That will 
avoid this problem.

73,

Lyle KK7P

> Why is it that there is a significant drop in signal 
>level (on CW) when
> either of those two filter widths are selected? 
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[Elecraft] K1-4 backorder - how long will the wait likely be?

[Chris Wagner]

Today, I ordered a K3 and a K1-4. The K1-4 cannot be shipped. Now I'm
wondering how long the wait will be?
If it's way too long, I will switch to the KX1.
73,
Chris KF6VCI  HS0ZFE
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[Elecraft] TU WSPR INFO

[Ken Roberson]

Thanks to all for the WSPR info.

73 Ken K5DNL
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Re: [Elecraft] K1-4 backorder - how long will the wait likely be?

[Kevin Rock]

When I glanced at the Subject line I was a bit taken aback thinking you  
had ordered a K1, a K2, a K3, and a K4.  Since the K4 is only in the wish  
phase your order will take one very long time to arrive :)
73 & GL with your rigs to come.
   Kevin.  KD5ONS



On Tue, 26 Jul 2011 15:53:19 -0700, Chris Wagner  wrote:

> Today, I ordered a K3 and a K1-4. The K1-4 cannot be shipped. Now I'm
> wondering how long the wait will be?
> If it's way too long, I will switch to the KX1.
> 73,
> Chris KF6VCI  HS0ZFE
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Re: [Elecraft] K1-4 backorder - how long will the wait likely be?

[David Christ]

That's strange as the Elecraft shipping status page says the K1-4 is 
in stock.  I'd e-mail Elecraft to ask what's the discrepancy.

http://elecraft.com/elecraft_shipping_status.htm

David K0LUM

At 5:53 AM +0700 7/27/11, Chris Wagner wrote:
>Today, I ordered a K3 and a K1-4. The K1-4 cannot be shipped. Now I'm
>wondering how long the wait will be?
>If it's way too long, I will switch to the KX1.
>73,
>Chris KF6VCI  HS0ZFE
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Re: [Elecraft] K4

[Lew Phelps K6LMP]

There once was sold an excellent rig (for its day) sold by Yaesu called the 
FT-736r. It was designed and marketed primarily for satellite work, but became 
very popular among VHF-UHF contesters.  In fact, I know of quite  few who still 
use it, but they are looking for alternatives, since the '736 is becoming 
unreliable with age.

The FT-736r had internal slot for four band-specific modules (transverters); 
the owner could mix and match among 6 meter, 2 meter, 220, 440, and 1296 mhz 
SSB. The modules were rated for 25 watts output through 220 mHz and 20 watts on 
440 and above. Its receiver was not very impressive compared with what you can 
get with a K3 and transverters, but those who own it love it.  

Given the physical size and relatively high running temp of existing Elecraft 
transverters, my guess is that they'd have to be redesigned for slightly less 
power output to fit within the K3 case on a K3-based motherboard. But 16 watts 
out from a transverter module into an amplifier with 15 db gain would yield 500 
watts out, and that's plenty for the uses such a rig would be put to.   Marry a 
"K4" to a purpose-built VHF/UHF amplifier (akin to the KPA-500) and you would 
have a killer rig for VHF-UHF contesting. 

As for price, take a look at the eHam reviews of the FT-736r. The basic unit 
sells today for more than $500, even though decades old, and the "scarce" 222 
mhz and 1296 mHz modules sometimes fetch $1,000 on eBay. People who are into 
satellite work and VHF/UHF contesting would fight for a place in line to buy 
such a rig, and for many it would be a bargain compared with trying to set up a 
complete FT-736r. If space allowed, five bands would be even better, but since 
most VHF/UHF contesters use a separate rig for 6 meters anyway, you could get 
by with four, covering 2m, 1.25 m, 70 cm, and 23 cm bands. You can easily spend 
$3k or $4k to put together a comparably equipped FT-736, which  suggests that 
the market would accept a price of up to $5k for a new and very high-quality 
rig such as the hypothetical K4.

And it absolutely would not pirate sales from the K3, although it would put a 
dent in sales of transverters. Please don't think that's a reason for not 
producing such a radio.  If Elecraft followed that philosophy we'd not have the 
K3 or KX3.


I would sell my car and walk 25 miles to work to get a "K4". 

Lew K6LMP


> On 26 Jul 2011, at 14:08, Daniel Brown wrote:
> 
>> A purpose built VHF/UHF/uWave and Satellite focused rig would be great
>> - small section of the market, likely, but would be great for those of
>> us who are interested there.
>> 
>> 73,
>> N8YSZ.

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Re: [Elecraft] K4

[Gary Gregory]

Lew,

Although I am HF only, you put a very strong case for a K4 as you describe.
I wonder now if the minds at elecraft are working on a similar
schemeHmm

Gary

On 27 July 2011 10:05, Lew Phelps K6LMP  wrote:

> There once was sold an excellent rig (for its day) sold by Yaesu called the
> FT-736r. It was designed and marketed primarily for satellite work, but
> became very popular among VHF-UHF contesters.  In fact, I know of quite  few
> who still use it, but they are looking for alternatives, since the '736 is
> becoming unreliable with age.
>
> The FT-736r had internal slot for four band-specific modules
> (transverters); the owner could mix and match among 6 meter, 2 meter, 220,
> 440, and 1296 mhz SSB. The modules were rated for 25 watts output through
> 220 mHz and 20 watts on 440 and above. Its receiver was not very impressive
> compared with what you can get with a K3 and transverters, but those who own
> it love it.
>
> Given the physical size and relatively high running temp of existing
> Elecraft transverters, my guess is that they'd have to be redesigned for
> slightly less power output to fit within the K3 case on a K3-based
> motherboard. But 16 watts out from a transverter module into an amplifier
> with 15 db gain would yield 500 watts out, and that's plenty for the uses
> such a rig would be put to.   Marry a "K4" to a purpose-built VHF/UHF
> amplifier (akin to the KPA-500) and you would have a killer rig for VHF-UHF
> contesting.
>
> As for price, take a look at the eHam reviews of the FT-736r. The basic
> unit sells today for more than $500, even though decades old, and the
> "scarce" 222 mhz and 1296 mHz modules sometimes fetch $1,000 on eBay. People
> who are into satellite work and VHF/UHF contesting would fight for a place
> in line to buy such a rig, and for many it would be a bargain compared with
> trying to set up a complete FT-736r. If space allowed, five bands would be
> even better, but since most VHF/UHF contesters use a separate rig for 6
> meters anyway, you could get by with four, covering 2m, 1.25 m, 70 cm, and
> 23 cm bands. You can easily spend $3k or $4k to put together a comparably
> equipped FT-736, which  suggests that the market would accept a price of up
> to $5k for a new and very high-quality rig such as the hypothetical K4.
>
> And it absolutely would not pirate sales from the K3, although it would put
> a dent in sales of transverters. Please don't think that's a reason for not
> producing such a radio.  If Elecraft followed that philosophy we'd not have
> the K3 or KX3.
>
>
> I would sell my car and walk 25 miles to work to get a "K4".
>
> Lew K6LMP
>
>
> > On 26 Jul 2011, at 14:08, Daniel Brown wrote:
> >
> >> A purpose built VHF/UHF/uWave and Satellite focused rig would be great
> >> - small section of the market, likely, but would be great for those of
> >> us who are interested there.
> >>
> >> 73,
> >> N8YSZ.
>
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-- 

VK4FD - Motorhome Mobile
Elecraft Equipment
K3 #679, KPA-500 #018
Living the dream!!!
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Re: [Elecraft] K4

[Jeff Cochrane - VK4BOF]

Agreed Gary,
Lew sure does put the case forward rather eloquently doesn't he?
If Elecraft made a rig like Lew described, I would purchase one in a heartbeat.
Although I love my K3 and my soon to arrive KPA500, my first love in Amateur 
Radio 
was and remains VHF/UHF operation. (6m and up)

73 de
Jeff Cochrane - VK4BOF
Elecraft K3 # 4257 + K144XV + KPA500 + PR6 = A multi-band contesters wet dream!


- Original Message - 
From: "Gary Gregory" 
To: "Lew Phelps K6LMP" 
Cc: 
Sent: Wednesday, July 27, 2011 10:16 AM
Subject: Re: [Elecraft] K4


> Lew,
>
> Although I am HF only, you put a very strong case for a K4 as you describe.
> I wonder now if the minds at elecraft are working on a similar
> schemeHmm
>
> Gary
>
> On 27 July 2011 10:05, Lew Phelps K6LMP  wrote:
>
>> There once was sold an excellent rig (for its day) sold by Yaesu called the
>> FT-736r. It was designed and marketed primarily for satellite work, but
>> became very popular among VHF-UHF contesters.  In fact, I know of quite  few
>> who still use it, but they are looking for alternatives, since the '736 is
>> becoming unreliable with age.
>>
>> The FT-736r had internal slot for four band-specific modules
>> (transverters); the owner could mix and match among 6 meter, 2 meter, 220,
>> 440, and 1296 mhz SSB. The modules were rated for 25 watts output through
>> 220 mHz and 20 watts on 440 and above. Its receiver was not very impressive
>> compared with what you can get with a K3 and transverters, but those who own
>> it love it.
>>
>> Given the physical size and relatively high running temp of existing
>> Elecraft transverters, my guess is that they'd have to be redesigned for
>> slightly less power output to fit within the K3 case on a K3-based
>> motherboard. But 16 watts out from a transverter module into an amplifier
>> with 15 db gain would yield 500 watts out, and that's plenty for the uses
>> such a rig would be put to.   Marry a "K4" to a purpose-built VHF/UHF
>> amplifier (akin to the KPA-500) and you would have a killer rig for VHF-UHF
>> contesting.
>>
>> As for price, take a look at the eHam reviews of the FT-736r. The basic
>> unit sells today for more than $500, even though decades old, and the
>> "scarce" 222 mhz and 1296 mHz modules sometimes fetch $1,000 on eBay. People
>> who are into satellite work and VHF/UHF contesting would fight for a place
>> in line to buy such a rig, and for many it would be a bargain compared with
>> trying to set up a complete FT-736r. If space allowed, five bands would be
>> even better, but since most VHF/UHF contesters use a separate rig for 6
>> meters anyway, you could get by with four, covering 2m, 1.25 m, 70 cm, and
>> 23 cm bands. You can easily spend $3k or $4k to put together a comparably
>> equipped FT-736, which  suggests that the market would accept a price of up
>> to $5k for a new and very high-quality rig such as the hypothetical K4.
>>
>> And it absolutely would not pirate sales from the K3, although it would put
>> a dent in sales of transverters. Please don't think that's a reason for not
>> producing such a radio.  If Elecraft followed that philosophy we'd not have
>> the K3 or KX3.
>>
>>
>> I would sell my car and walk 25 miles to work to get a "K4".
>>
>> Lew K6LMP
>>
>>
>> > On 26 Jul 2011, at 14:08, Daniel Brown wrote:
>> >
>> >> A purpose built VHF/UHF/uWave and Satellite focused rig would be great
>> >> - small section of the market, likely, but would be great for those of
>> >> us who are interested there.
>> >>
>> >> 73,
>> >> N8YSZ.
>>
>> __
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>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>> Post: mailto:Elecraft@mailman.qth.net
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>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
>
>
> -- 
>
> VK4FD - Motorhome Mobile
> Elecraft Equipment
> K3 #679, KPA-500 #018
> Living the dream!!!
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[Elecraft] K4

[Johnny Siu]

Hello Lew,
 
I have no disagreement to your suggested arrangement.  However, in the reality, 
the market for HF radios is far bigger than V/U radios.  The R&D expenses in HF 
radios can be spreaded among commercial and insitutional variants.  Perhaps, 
this explains why HF radio technology has been advancing so quick that we get 
quite a number of radio choices from different manufacturers. 
 
The technology in the currrent V/U ham radios is not much different from that 
of 20 years ago.  This perhaps explains the reason why some of the hams are 
stilling chasing for the FT736R.  The big names Y,I,K would rather spend their 
R&D in a more profitable radio segment such as HF.
 
Even for the latest production of IC9100, of which I consider a good radio, I 
feel Icom is very brave in trying to launch an expensive radio targeting at the 
V/U segment.  Without any intention to discriminate between HF and V/U 
operators, I feel HF hams are prepared to spend more in their radios.
 
I did not know whether high end V/U radio will be profitable enough for 
Elecraft.
 
Back to the price of FT736R, I feel it was overpriced in US or western 
countries. A nice second hand FT736 equipped with1.2G modules are selling at 
JPY70,000 in Japan.  Regrettably, local Japanese dealers do not entertain 
overseas order.  I will not buy FT736 now because I am not a skillful radio 
technican good at repairing work.

TNX & 73,


Johnny VR2XMC

從︰ Lew Phelps K6LMP 
收件人︰ "Elecraft@mailman.qth.net List" 
傳送日期︰ 2011年07月27日 (週三) 8:05 AM
主題︰ Re: [Elecraft] K4

There once was sold an excellent rig (for its day) sold by Yaesu called the 
FT-736r. It was designed and marketed primarily for satellite work, but became 
very popular among VHF-UHF contesters.  In fact, I know of quite  few who still 
use it, but they are looking for alternatives, since the '736 is becoming 
unreliable with age.

The FT-736r had internal slot for four band-specific modules (transverters); 
the owner could mix and match among 6 meter, 2 meter, 220, 440, and 1296 mhz 
SSB. The modules were rated for 25 watts output through 220 mHz and 20 watts on 
440 and above. Its receiver was not very impressive compared with what you can 
get with a K3 and transverters, but those who own it love it.  

Given the physical size and relatively high running temp of existing Elecraft 
transverters, my guess is that they'd have to be redesigned for slightly less 
power output to fit within the K3 case on a K3-based motherboard. But 16 watts 
out from a transverter module into an amplifier with 15 db gain would yield 500 
watts out, and that's plenty for the uses such a rig would be put to.   Marry a 
"K4" to a purpose-built VHF/UHF amplifier (akin to the KPA-500) and you would 
have a killer rig for VHF-UHF contesting. 

As for price, take a look at the eHam reviews of the FT-736r. The basic unit 
sells today for more than $500, even though decades old, and the "scarce" 222 
mhz and 1296 mHz modules sometimes fetch $1,000 on eBay. People who are into 
satellite work and VHF/UHF contesting would fight for a place in line to buy 
such a rig, and for many it would be a bargain compared with trying to set up a 
complete FT-736r. If space allowed, five bands would be even better, but since 
most VHF/UHF contesters use a separate rig for 6 meters anyway, you could get 
by with four, covering 2m, 1.25 m, 70 cm, and 23 cm bands. You can easily spend 
$3k or $4k to put together a comparably equipped FT-736, which  suggests that 
the market would accept a price of up to $5k for a new and very high-quality 
rig such as the hypothetical K4.

And it absolutely would not pirate sales from the K3, although it would put a 
dent in sales of transverters. Please don't think that's a reason for not 
producing such a radio.  If Elecraft followed that philosophy we'd not have the 
K3 or KX3.


I would sell my car and walk 25 miles to work to get a "K4". 

Lew K6LMP


> On 26 Jul 2011, at 14:08, Daniel Brown wrote:
> 
>> A purpose built VHF/UHF/uWave and Satellite focused rig would be great
>> - small section of the market, likely, but would be great for those of
>> us who are interested there.
>> 
>> 73,
>> N8YSZ.

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Re: [Elecraft] KPA500 Serial 0194 Done!

[ke9uw]

I am really wanting to order this, started to twice, but the LED alignment
kind of is holding me back. The screws I can manage. Any chance one of you
can post a picture so I can see what or not the misalignment looks like?
Thanks, Chuck KE9UW


Tony Estep wrote:
> 
> On Sun, Jul 24, 2011 at 12:40 PM, Bruce W1UJR  wrote:
> 
>> ...Metering LEDS not very straight or level...
> 
> 
> Bruce, I had good luck by just holding a ruler along the bottom of the
> line
> of LEDs (with the panel on) and straightening them with a finger. They
> look
> pretty good now.
> 
> 73, Tony KT0NY
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View this message in context: 
http://elecraft.365791.n2.nabble.com/KPA500-Serial-0194-Done-tp6615927p6624403.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] KPA500 Serial 0194 Done!

[Tony Estep]

Chuck, it's just a fraction of an inch, maybe 1/64". There's a line of LEDs
that make a bar-graph display of power. They're already soldered in place.
All you have to do after it's all finished is run your finger along the
bottom edge to straighten them up. Definitely shouldn't be something that
keeps you from enjoying this dynamite amp.

73,
Tony KT0NY

On Tue, Jul 26, 2011 at 7:43 PM, ke9uw  wrote:

> I am really wanting to order this, started to twice, but the LED alignment
> kind of is holding me back. 
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[Elecraft] K2/100 For Sale

[Ken Demaray]

FS:  My K2/100 and KAT100 with options and upgrades installed. In excellent  
physical and operational condition- carefully built and has had very 
light use. 

Options included:
KSB2… SSB adapter board
KNB2...Noise Blanker
KAF2… Audio filter/Real-Time clock
K160RX… 160 mtrs/2nd RX antenna
KAT2… QRP auto antenna tuner
ETS15… Short tilt stand
EC2… Project Enclosure kit- Unbuilt- New…(build  KPA100 and KAT100 into one box)
Fingerdimple & FT-100 knob- not currently  installed
Nifty Mini-manual K2
All cables- 2 power cables, RS232 cable
Mic/headset w/PTT switch
Metal case w/foam cut for K2

Upgrades:
K2 Keying mod
12M/10M BPF mod
VFO ALC mod
PLL temp stability upgrade
FWK2MCIO Firmware 2.04/1.0
REVISION  A to B mods,  including
BFOMDKT and
E850138 PLL ref upgrade
XFILMDKT
2nd XFIL SSB mod
AF Gain wiring mod
K2 mic shell to PCB mod
SSBCAPKT and R-K2KSB2XTLS mods, KSB2 caps/14  crystals, included not installed
KPA100UPKT amp upgrade
KPA100RESKT amp 20/17 meter upgrade

Everything completely documented. 
Pictures available at:  
http://www.flickr.com/photos/w8soo/sets/72157627101739390/

One of the best rigs I’ve ever built/owned- not using it much so time to give 
it 

a new home.  It will be hard to find one better built.  Serial #0812-  Price is 
$1175 shipped double-boxed  to  CONUS.  Payment by MO or PayPal.
If interested, please email: w8soo at arrl dot net
73, Ken W8SOO   K3 #1972 
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[Elecraft] AMERITRON AL-1200 Amplifier Listed on Ebay--FINAL CHAPTER

[eric norris]

Dear Gang:

My KPA-500 has shipped and the buyer for my AL-1200 backed out on the same 
day!  
I apologize for the bandwidth--you won't hear this again.  My AL-1200 is now 
listed on Ebay, listing 270789215092  


If the XYL sees the huge negative ham radio expense I will be walking the 
streets begging for food--and for AA batteries to power my K1. 

73,

Eric WD6DBM 
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Re: [Elecraft] KPA500 Serial 0194 Done!

[ke9uw]

Sounds good...I like things on the mark, why I chose Elecraft actually.
Chuck, KE9UW

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Re: [Elecraft] KPA500 Serial 0194 Done!

[Ron D'Eau Claire]

The manual is being updated (when I stop messing about here) with a simple
procedure to align the LEDs, either using a straight edge or your
fingernail. 

We never thought aligning them perfectly would be such a mystery, so it
wasn't covered in the manual :-)

For anyone who has misaligned LED's: with the front panel mounted run your
fingernail along the LEDs, pushing them up or down against the opening. They
will be perfectly straight. Optionally, you and place a straight edge (such
as a common rule) along one side of the LED's and use it to press them all
against the opening. Want them perfectly centered in that opening (only a
tiny gap on either side, but for the absolute perfectionist), just use that
rule to push them all slightly away from one edge of the LED opening to the
center. 

It really isn't something that can be fixed at the factory - it's just too
easy to misalign them when handling or packaging the board. The above
procedures are what the factory does to insure the factory-assembled KPA500
LEDs are perfectly straight. 

Ron AC7AC

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of ke9uw
Sent: Tuesday, July 26, 2011 5:43 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA500 Serial 0194 Done!

I am really wanting to order this, started to twice, but the LED alignment
kind of is holding me back. The screws I can manage. Any chance one of you
can post a picture so I can see what or not the misalignment looks like?
Thanks, Chuck KE9UW


Tony Estep wrote:
> 
> On Sun, Jul 24, 2011 at 12:40 PM, Bruce W1UJR  wrote:
> 
>> ...Metering LEDS not very straight or level...
> 
> 
> Bruce, I had good luck by just holding a ruler along the bottom of the
> line
> of LEDs (with the panel on) and straightening them with a finger. They
> look
> pretty good now.
> 
> 73, Tony KT0NY
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Re: [Elecraft] K1-4 backorder - how long will the wait likely be?

[Ron D'Eau Claire]

Just call sales at Elecraft: 831-763-4211. They'll give you the straight
scoop in an instant. It's probably a very short term interruption due to a
vendor. 

Ron AC7AC

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Chris Wagner
Sent: Tuesday, July 26, 2011 3:53 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K1-4 backorder - how long will the wait likely be?

Today, I ordered a K3 and a K1-4. The K1-4 cannot be shipped. Now I'm
wondering how long the wait will be?
If it's way too long, I will switch to the KX1.
73,
Chris KF6VCI  HS0ZFE
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Re: [Elecraft] K4

[Joe Subich, W4TV]

Lew,

Other than the fact that the FT-736R had all of the modules in the
case, what is the difference between a K4 such as you propose and
a K3/10 with a XV-144/XV-222/XV-432 stack?  Perhaps Elecraft could
be persuaded to work on an XV-1290 to round out the offering ...

Of more interest would be the ability to activate two of the XVs at
the same time and feed the second one to the K3's Aux input (sub RX)
for monitoring two bands, working satellites, or working cross band.
It would take some work with both the XVs and the K3 control code
but might pay off more than a VHF/UHF only "K4."

73,

... Joe, W4TV


On 7/26/2011 8:05 PM, Lew Phelps K6LMP wrote:
> There once was sold an excellent rig (for its day) sold by Yaesu called the 
> FT-736r. It was designed and marketed primarily for satellite work, but 
> became very popular among VHF-UHF contesters.  In fact, I know of quite  few 
> who still use it, but they are looking for alternatives, since the '736 is 
> becoming unreliable with age.
>
> The FT-736r had internal slot for four band-specific modules (transverters); 
> the owner could mix and match among 6 meter, 2 meter, 220, 440, and 1296 mhz 
> SSB. The modules were rated for 25 watts output through 220 mHz and 20 watts 
> on 440 and above. Its receiver was not very impressive compared with what you 
> can get with a K3 and transverters, but those who own it love it.
>
> Given the physical size and relatively high running temp of existing Elecraft 
> transverters, my guess is that they'd have to be redesigned for slightly less 
> power output to fit within the K3 case on a K3-based motherboard. But 16 
> watts out from a transverter module into an amplifier with 15 db gain would 
> yield 500 watts out, and that's plenty for the uses such a rig would be put 
> to.   Marry a "K4" to a purpose-built VHF/UHF amplifier (akin to the KPA-500) 
> and you would have a killer rig for VHF-UHF contesting.
>
> As for price, take a look at the eHam reviews of the FT-736r. The basic unit 
> sells today for more than $500, even though decades old, and the "scarce" 222 
> mhz and 1296 mHz modules sometimes fetch $1,000 on eBay. People who are into 
> satellite work and VHF/UHF contesting would fight for a place in line to buy 
> such a rig, and for many it would be a bargain compared with trying to set up 
> a complete FT-736r. If space allowed, five bands would be even better, but 
> since most VHF/UHF contesters use a separate rig for 6 meters anyway, you 
> could get by with four, covering 2m, 1.25 m, 70 cm, and 23 cm bands. You can 
> easily spend $3k or $4k to put together a comparably equipped FT-736, which  
> suggests that the market would accept a price of up to $5k for a new and very 
> high-quality rig such as the hypothetical K4.
>
> And it absolutely would not pirate sales from the K3, although it would put a 
> dent in sales of transverters. Please don't think that's a reason for not 
> producing such a radio.  If Elecraft followed that philosophy we'd not have 
> the K3 or KX3.
>
>
> I would sell my car and walk 25 miles to work to get a "K4".
>
> Lew K6LMP
>
>
>> On 26 Jul 2011, at 14:08, Daniel Brown wrote:
>>
>>> A purpose built VHF/UHF/uWave and Satellite focused rig would be great
>>> - small section of the market, likely, but would be great for those of
>>> us who are interested there.
>>>
>>> 73,
>>> N8YSZ.
>
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[Elecraft] K1/KX1 connection with small amplifiers...ideas?

[VK7JB]

Hi All,

I have a K1 and also a cute, but rugged, little Tokyo HP-45b amp, which puts
out about 45W and I take it camping.  I've been thinking of pairing the two. 
The THP amp doesn't have RF sensing for switching.  Can anyone point me in
the direction of a simple way to key the amp with a K1 / KX1?  Are there amp
keying buffer circuits you can make up and use with the K1/KX1?

Perhaps someone out there has done this successfully already.  I can't find
much in the archives, so perhaps others have worked out that it's not worth
the fuss?! :)

Thanks!

John
VK7JB
K1 #2822, K2/100 #6998, #K3 5102

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[Elecraft] For Sale: Ameritron AL-80B Linear Amplifier

[Ken Alexander]

I have an Ameritron AL-80B 1 kW amplifier for sale.  It's in very good 
condition.  I acquired it from the estate of VE3DTQ (SK), but I'm just 
not a QRO guy.  I had it checked out by the local ham dealer and it puts 
out 700W on all bands except 10m, where they measured 690W.  That's 
driving it with 85W.  I was told a new 3-500Z tube would bring it right 
back to advertised output.  I can take some photos if anyone is interested.

I'd like $1,000 for it.  Toronto area hams:  I live in Newmarket and 
work in Toronto (Hwy 404 and Sheppard).  I can meet you in either 
location.  I'm not going to ship it.  U.S. hams:  I'll be happy to meet 
you in Niagara Falls, Ontario, the border crossing near Gananoque, 
Ontario (east end of Lake Ontario) or near Windsor, Ontario (let's say 
London, OK?).

73 and thanks for your time,

Ken Alexander
VE3HLS
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Re: [Elecraft] K4

[Jack Chomley]

The K4 would be better off, with NO HF :-) Similar to the 736R and the later 
Icom 910H.
Now that the 910H has been replaced with the higher priced Icom 9100, that 
includes HF.
The market is short on VHF/UHF only radios with Multimode and SAT capability, 
as standalone radios.

73,

Jack VK4JRC
Sent from my iPad

On 27/07/2011, at 12:18 PM, "Joe Subich, W4TV"  wrote:

> 
> Lew,
> 
> Other than the fact that the FT-736R had all of the modules in the
> case, what is the difference between a K4 such as you propose and
> a K3/10 with a XV-144/XV-222/XV-432 stack?  Perhaps Elecraft could
> be persuaded to work on an XV-1290 to round out the offering ...
> 
> Of more interest would be the ability to activate two of the XVs at
> the same time and feed the second one to the K3's Aux input (sub RX)
> for monitoring two bands, working satellites, or working cross band.
> It would take some work with both the XVs and the K3 control code
> but might pay off more than a VHF/UHF only "K4."
> 
> 73,
> 
>... Joe, W4TV
> 
> 
> On 7/26/2011 8:05 PM, Lew Phelps K6LMP wrote:
>> There once was sold an excellent rig (for its day) sold by Yaesu called the 
>> FT-736r. It was designed and marketed primarily for satellite work, but 
>> became very popular among VHF-UHF contesters.  In fact, I know of quite  few 
>> who still use it, but they are looking for alternatives, since the '736 is 
>> becoming unreliable with age.
>> 
>> The FT-736r had internal slot for four band-specific modules (transverters); 
>> the owner could mix and match among 6 meter, 2 meter, 220, 440, and 1296 mhz 
>> SSB. The modules were rated for 25 watts output through 220 mHz and 20 watts 
>> on 440 and above. Its receiver was not very impressive compared with what 
>> you can get with a K3 and transverters, but those who own it love it.
>> 
>> Given the physical size and relatively high running temp of existing 
>> Elecraft transverters, my guess is that they'd have to be redesigned for 
>> slightly less power output to fit within the K3 case on a K3-based 
>> motherboard. But 16 watts out from a transverter module into an amplifier 
>> with 15 db gain would yield 500 watts out, and that's plenty for the uses 
>> such a rig would be put to.   Marry a "K4" to a purpose-built VHF/UHF 
>> amplifier (akin to the KPA-500) and you would have a killer rig for VHF-UHF 
>> contesting.
>> 
>> As for price, take a look at the eHam reviews of the FT-736r. The basic unit 
>> sells today for more than $500, even though decades old, and the "scarce" 
>> 222 mhz and 1296 mHz modules sometimes fetch $1,000 on eBay. People who are 
>> into satellite work and VHF/UHF contesting would fight for a place in line 
>> to buy such a rig, and for many it would be a bargain compared with trying 
>> to set up a complete FT-736r. If space allowed, five bands would be even 
>> better, but since most VHF/UHF contesters use a separate rig for 6 meters 
>> anyway, you could get by with four, covering 2m, 1.25 m, 70 cm, and 23 cm 
>> bands. You can easily spend $3k or $4k to put together a comparably equipped 
>> FT-736, which  suggests that the market would accept a price of up to $5k 
>> for a new and very high-quality rig such as the hypothetical K4.
>> 
>> And it absolutely would not pirate sales from the K3, although it would put 
>> a dent in sales of transverters. Please don't think that's a reason for not 
>> producing such a radio.  If Elecraft followed that philosophy we'd not have 
>> the K3 or KX3.
>> 
>> 
>> I would sell my car and walk 25 miles to work to get a "K4".
>> 
>> Lew K6LMP
>> 
>> 
>>> On 26 Jul 2011, at 14:08, Daniel Brown wrote:
>>> 
 A purpose built VHF/UHF/uWave and Satellite focused rig would be great
 - small section of the market, likely, but would be great for those of
 us who are interested there.
 
 73,
 N8YSZ.
>> 
>> __
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Re: [Elecraft] K4

[Nate Bargmann]

* On 2011 26 Jul 21:19 -0500, Joe Subich, W4TV wrote:
> 
> Lew,
> 
> Other than the fact that the FT-736R had all of the modules in the
> case, what is the difference between a K4 such as you propose and
> a K3/10 with a XV-144/XV-222/XV-432 stack?  Perhaps Elecraft could
> be persuaded to work on an XV-1290 to round out the offering ...
> 
> Of more interest would be the ability to activate two of the XVs at
> the same time and feed the second one to the K3's Aux input (sub RX)
> for monitoring two bands, working satellites, or working cross band.
> It would take some work with both the XVs and the K3 control code
> but might pay off more than a VHF/UHF only "K4."

As my interest has recently been piqued by the satellites, this was just
the solution I had in mind with my K3.  I day dreamed that with the sub
receiver the K3 might be able to do full duplex.  My reading of this
list's archives led me to the conclusion that this is not possible at
this time.  Should the K3 be developed as you suggest, Joe, I would be 
happy to go that route.

At the moment I have more pressing needs such as antenna construction
and getting familiar with various aspects of satellite operation.  For
that I will concentrate on receiving and my FT-817 needs a purpose.  :-)

73, de Nate N0NB >>

-- 

"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://www.n0nb.us
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Re: [Elecraft] K4

[Joe Subich, W4TV]

 > The K4 would be better off, with NO HF :-)

Why?  Considering that 28 MHz is required as the IF for the VHF/UHF
"band modules" (transverters) and the base K3/K4 would include the
8/10 Watt six meter capability, there is no cost difference/impact.

I would think that providing a way to keep the sub-receiver active
during transmit, allowing a second transverter to feed the sub RX
for cross band/multi band receive, and providing an "inverted link"
mode for the VFOs (for inverted transponder satellite work) would
make the K3/10 with XV stack essentially the perfect VHF/UHF rig -
other than the lack of a large case to hold the XV stack internally.

73,

... Joe, W4TV



On 7/26/2011 11:21 PM, Jack Chomley wrote:
>
> The K4 would be better off, with NO HF :-) Similar to the 736R and the later 
> Icom 910H.
> Now that the 910H has been replaced with the higher priced Icom 9100, that 
> includes HF.
> The market is short on VHF/UHF only radios with Multimode and SAT capability, 
> as standalone radios.
>
> 73,
>
> Jack VK4JRC
> Sent from my iPad
>
> On 27/07/2011, at 12:18 PM, "Joe Subich, W4TV"  wrote:
>
>>
>> Lew,
>>
>> Other than the fact that the FT-736R had all of the modules in the
>> case, what is the difference between a K4 such as you propose and
>> a K3/10 with a XV-144/XV-222/XV-432 stack?  Perhaps Elecraft could
>> be persuaded to work on an XV-1290 to round out the offering ...
>>
>> Of more interest would be the ability to activate two of the XVs at
>> the same time and feed the second one to the K3's Aux input (sub RX)
>> for monitoring two bands, working satellites, or working cross band.
>> It would take some work with both the XVs and the K3 control code
>> but might pay off more than a VHF/UHF only "K4."
>>
>> 73,
>>
>> ... Joe, W4TV
>>
>>
>> On 7/26/2011 8:05 PM, Lew Phelps K6LMP wrote:
>>> There once was sold an excellent rig (for its day) sold by Yaesu called the 
>>> FT-736r. It was designed and marketed primarily for satellite work, but 
>>> became very popular among VHF-UHF contesters.  In fact, I know of quite  
>>> few who still use it, but they are looking for alternatives, since the '736 
>>> is becoming unreliable with age.
>>>
>>> The FT-736r had internal slot for four band-specific modules 
>>> (transverters); the owner could mix and match among 6 meter, 2 meter, 220, 
>>> 440, and 1296 mhz SSB. The modules were rated for 25 watts output through 
>>> 220 mHz and 20 watts on 440 and above. Its receiver was not very impressive 
>>> compared with what you can get with a K3 and transverters, but those who 
>>> own it love it.
>>>
>>> Given the physical size and relatively high running temp of existing 
>>> Elecraft transverters, my guess is that they'd have to be redesigned for 
>>> slightly less power output to fit within the K3 case on a K3-based 
>>> motherboard. But 16 watts out from a transverter module into an amplifier 
>>> with 15 db gain would yield 500 watts out, and that's plenty for the uses 
>>> such a rig would be put to.   Marry a "K4" to a purpose-built VHF/UHF 
>>> amplifier (akin to the KPA-500) and you would have a killer rig for VHF-UHF 
>>> contesting.
>>>
>>> As for price, take a look at the eHam reviews of the FT-736r. The basic 
>>> unit sells today for more than $500, even though decades old, and the 
>>> "scarce" 222 mhz and 1296 mHz modules sometimes fetch $1,000 on eBay. 
>>> People who are into satellite work and VHF/UHF contesting would fight for a 
>>> place in line to buy such a rig, and for many it would be a bargain 
>>> compared with trying to set up a complete FT-736r. If space allowed, five 
>>> bands would be even better, but since most VHF/UHF contesters use a 
>>> separate rig for 6 meters anyway, you could get by with four, covering 2m, 
>>> 1.25 m, 70 cm, and 23 cm bands. You can easily spend $3k or $4k to put 
>>> together a comparably equipped FT-736, which  suggests that the market 
>>> would accept a price of up to $5k for a new and very high-quality rig such 
>>> as the hypothetical K4.
>>>
>>> And it absolutely would not pirate sales from the K3, although it would put 
>>> a dent in sales of transverters. Please don't think that's a reason for not 
>>> producing such a radio.  If Elecraft followed that philosophy we'd not have 
>>> the K3 or KX3.
>>>
>>>
>>> I would sell my car and walk 25 miles to work to get a "K4".
>>>
>>> Lew K6LMP
>>>
>>>
 On 26 Jul 2011, at 14:08, Daniel Brown wrote:

> A purpose built VHF/UHF/uWave and Satellite focused rig would be great
> - small section of the market, likely, but would be great for those of
> us who are interested there.
>
> 73,
> N8YSZ.
>>>
>>> __
>>> 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 ema

Re: [Elecraft] K4

[george fritkin]

The new radio should not be a Swiss army of the frequency spectrum, but a "tour 
de force" of Elecraft.  It should have an on board computer with a tethered 
human interface.  It should have a generous sized display allowing the user to  
control the radio's function with a terse set of knobs or the human interface 
with the screen sharing radio functions and a spectrum analyzer. 
What I have seen here in  the way of suggestions is just packaging more 
functions rather revolutionary radio changes.  
Radios today should be treated as a computing device  whose output happens to 
be an RF signal.  There have be some attempts at what I suggesting.  However, 
these attempts were just too pioneering.  As we say in  electronics, pioneers 
are those that get shot in the back. 
 But, as an outsider looking in, Elecraft seems to have in hand the ability to 
build a truly revolutionary radio.  And, if you guys at Elecraft do this, sign 
me up for S/N 1.  By the way, I think the new radio, the KX-3, is the trial 
balloon.
Love my two K3s
George, W6GF



--- On Tue, 7/26/11, Nate Bargmann  wrote:

From: Nate Bargmann 
Subject: Re: [Elecraft] K4
To: 
Date: Tuesday, July 26, 2011, 8:40 PM

* On 2011 26 Jul 21:19 -0500, Joe Subich, W4TV wrote:
> 
> Lew,
> 
> Other than the fact that the FT-736R had all of the modules in the
> case, what is the difference between a K4 such as you propose and
> a K3/10 with a XV-144/XV-222/XV-432 stack?  Perhaps Elecraft could
> be persuaded to work on an XV-1290 to round out the offering ...
> 
> Of more interest would be the ability to activate two of the XVs at
> the same time and feed the second one to the K3's Aux input (sub RX)
> for monitoring two bands, working satellites, or working cross band.
> It would take some work with both the XVs and the K3 control code
> but might pay off more than a VHF/UHF only "K4."

As my interest has recently been piqued by the satellites, this was just
the solution I had in mind with my K3.  I day dreamed that with the sub
receiver the K3 might be able to do full duplex.  My reading of this
list's archives led me to the conclusion that this is not possible at
this time.  Should the K3 be developed as you suggest, Joe, I would be 
happy to go that route.

At the moment I have more pressing needs such as antenna construction
and getting familiar with various aspects of satellite operation.  For
that I will concentrate on receiving and my FT-817 needs a purpose.  :-)

73, de Nate N0NB >>

-- 

"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://www.n0nb.us
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Re: [Elecraft] K4

[Wayne Burdick]

Thanks for all the input, everyone. We'll save it all up for future  
reference. And if you have an idea that's too hot to post to the  
reflector, feel free to send it to me directly.

But just to be clear: there is *no* new radio in the works -- other  
than the KX3. Please don't call Lisa or Madelyn and ask for a K4.  
Please *do* ask for a K3, P3, KPA500, and a stack of transverters.

73,
Wayne
N6KR

On Jul 26, 2011, at 9:53 PM, george fritkin wrote:

> The new radio should not be a Swiss army of the frequency spectrum,  
> but a "tour de force" of Elecraft.  It should have an on board  
> computer with a tethered human interface.  It should have a generous  
> sized display allowing the user to  control the radio's function  
> with a terse set of knobs or the human interface with the screen  
> sharing radio functions and a spectrum analyzer.
> What I have seen here in  the way of suggestions is just packaging  
> more functions rather revolutionary radio changes.
> Radios today should be treated as a computing device  whose output  
> happens to be an RF signal.  There have be some attempts at what I  
> suggesting.  However, these attempts were just too pioneering.  As  
> we say in  electronics, pioneers are those that get shot in the back.
>  But, as an outsider looking in, Elecraft seems to have in hand the  
> ability to build a truly revolutionary radio.  And, if you guys at  
> Elecraft do this, sign me up for S/N 1.  By the way, I think the new  
> radio, the KX-3, is the trial balloon.
> Love my two K3s
> George, W6GF

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Re: [Elecraft] K4

[Jack Chomley]

Fair comment, Joe :-)  Just trying to avoid the super sized radio concept. 
Rather see standalone purpose built radios, yes I know it can mean multiple 
units to make a station. If one breaks, you are not totally off air and they 
are less complex to drive...I need a good replacement for my 736R, that is 
easy to use field portable :-)

73,

Jack. VK4JRC

Sent from my iPad

On 27/07/2011, at 1:48 PM, "Joe Subich, W4TV"  wrote:

> 
> > The K4 would be better off, with NO HF :-)
> 
> Why?  Considering that 28 MHz is required as the IF for the VHF/UHF
> "band modules" (transverters) and the base K3/K4 would include the
> 8/10 Watt six meter capability, there is no cost difference/impact.
> 
> I would think that providing a way to keep the sub-receiver active
> during transmit, allowing a second transverter to feed the sub RX
> for cross band/multi band receive, and providing an "inverted link"
> mode for the VFOs (for inverted transponder satellite work) would
> make the K3/10 with XV stack essentially the perfect VHF/UHF rig -
> other than the lack of a large case to hold the XV stack internally.
> 
> 73,
> 
>   ... Joe, W4TV
> 
> 
> 
> On 7/26/2011 11:21 PM, Jack Chomley wrote:
>> 
>> The K4 would be better off, with NO HF :-) Similar to the 736R and the later 
>> Icom 910H.
>> Now that the 910H has been replaced with the higher priced Icom 9100, that 
>> includes HF.
>> The market is short on VHF/UHF only radios with Multimode and SAT 
>> capability, as standalone radios.
>> 
>> 73,
>> 
>> Jack VK4JRC
>> Sent from my iPad
>> 
>> On 27/07/2011, at 12:18 PM, "Joe Subich, W4TV"  wrote:
>> 
>>> 
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[Elecraft] A Different Look :-)

[Jack Chomley]

Ahem..just wonder how nice any of the Elecraft radios would look, painted 
in Military green?Just imagine the KX-3 in a super spy can't see me, camo 
colour :-)
I would go 'green'.at the drop of a hat!

73,  Jack VK4JRC

Sent from my iPad
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Re: [Elecraft] A Different Look :-)

[Alexey Kats]

As my wife says sometimes, what's wrong with pink?

On Tue, Jul 26, 2011 at 11:34 PM, Jack Chomley  wrote:

> Ahem..just wonder how nice any of the Elecraft radios would look,
> painted in Military green?Just imagine the KX-3 in a super spy can't see me,
> camo colour :-)
> I would go 'green'.at the drop of a hat!
>
> 73,  Jack VK4JRC
>

-- 
Alexey Kats (neko)
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