Re: Re: [Elecraft] K3 CE

2007-11-15 Thread d.cutter
Don't forget that, aside from CE marking, you are deemed to be techniclly 
competent as an Advanced licence holder and can therefore build your own kit 
and operate it within the terms of your licence. You are right in saying that 
you can import your own kit for your own use and if you sell it, it is not as a 
business for general sale of lots of these.

David
G3UNA
 
 
 From: Julian G4ILO [EMAIL PROTECTED]
 Date: 2007/11/14 Wed PM 04:31:17 GMT
 To: elecraft elecraft@mailman.qth.net
 Subject: Re: Re: [Elecraft] K3 CE
 
 On Nov 14, 2007 3:42 PM,  [EMAIL PROTECTED] wrote:
  It is acceptable for an importer to certify products as long as he does so 
  within the legal requirments.  He can then quite legally fix the 
  appropriate CE label and provide a Certificate of Compliance.   I could not 
  comment as to whether W  S follow the requirments.  Anyone has the right 
  to view the Certificate of Compliance for any product within the EC.  The 
  importer then becomes the responsible vendor.
 
 But if I'm importing it to use, not to sell, does this matter? The
 body responsible for CE marking here is Trading Standards. They are
 unlikely to even find out about it since I am not a trader. Toby makes
 a valid point as concerns resale, but being pragmatic, we don't live
 in a bureaucratic police state where officials go through the small
 ads checking on what people are selling, so whether it's legal or not,
 it's certainly going to be under the radar.
 
 I think the only issue that may concern Elecraft is if it is likely
 that imports are going to be stopped at customs and returned at their
 expense. If it's OK for goods to be certified at this end then it
 obviously isn't illegal to import uncertified goods therefore customs
 isn't going to be bothered.
 -- 
 Julian, G4ILO K2 s/n: 392  K3 s/n: ???
 G4ILO's Shack: www.g4ilo.com
 Zerobeat Ham Forums: www.zerobeat.net/smf
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[Elecraft] OT:QEX High performance homebrew transceiver design.

2007-11-15 Thread Craig
Hi Elecrafters

There is a nice homebrew transceiver project in this
months QEX. This article can also be downloaded from
the QEX web page as it is the feature preview article.

Whats so impressive about this design is the 
impressive size and the great performance numbers
which any transceiver today would have trouble
equaling.   

Many would be interested in the design philosophy  and
technical outcomes.

Craig
VK3HE


  

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Text or chat with friends inside Yahoo! Mail. See how.  
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Re: Re: [Elecraft] K3 CE

2007-11-15 Thread d.cutter
You are not a vendor, merely a kit builder, you are not in business.  However, 
it's an interesting question.

David
G3UNA
 
 From: [EMAIL PROTECTED]
 Date: 2007/11/14 Wed PM 04:08:41 GMT
 To: [EMAIL PROTECTED]
 CC: Julian G4ILO [EMAIL PROTECTED],  elecraft elecraft@mailman.qth.net
 Subject: Re: Re: [Elecraft] K3 CE
 
 Hallo,
 
  The importer then becomes the responsible vendor.
 
 Which might be interesting if one ever decided to sell her/his K3, which was
 imported as a Kit and built in Europe?
 
 I wonder...
 
 vy 73 de toby
 

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Re: Re: [Elecraft] K3 CE

2007-11-15 Thread Julian G4ILO
On Nov 15, 2007 8:24 AM,  [EMAIL PROTECTED] wrote:
 Don't forget that, aside from CE marking, you are deemed to be techniclly 
 competent as an Advanced licence holder and can therefore build your own kit 
 and operate it within the terms of your licence. You are right in saying that 
 you can import your own kit for your own use and if you sell it, it is not as 
 a business for general sale of lots of these.

Coincidentally the December RadCom EMC column, page 43, has a
discussion that is relevant to this.

It explains that the regulations apply to goods that are placed on
the market or taken into service. New goods sold commercially are
placed on the market but (the article states) it is clear from
examples like very noisy (and CE marked!) Chinese made switch mode
wall warts sold on eBay that the local Trading Standards are doing
nothing about enforcement (and from personal knowledge they have
neither the manpower nor the technical competence to do so.) Second
hand goods sold on eBay or at a flea market are not placed on the
market. However, the purchaser is taking it into service and
therefore becomes responsible for its EMC compliance.

Although, as you say, we as radio hams should be competent to decide
whether our equipment meets the standards or not, the average person
buying a wall wart battery charger or whatever certainly isn't.

Therefore this whole CE marking busines seems to me to be a total
waste of time, as it is either unenforced or unenforceable.
-- 
Julian, G4ILO K2 s/n: 392  K3 s/n: ???
G4ILO's Shack: www.g4ilo.com
Zerobeat Ham Forums: www.zerobeat.net/smf
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Re: [Elecraft] K3 CE

2007-11-15 Thread dj7mgq
 Therefore this whole CE marking busines seems to me to be a total
 waste of time, as it is either unenforced or unenforceable.

Without wanting to pass judgement on the sense of CE Markings or lack thereof,
one must not forget, that (at least in DL) if you want to use a new rig in a
new car, then it *must* have a CE Marking.

This according the DARC (the German version of the RSGB).

vy 73 de toby



PS: For the German speakers out there...

Source: http://www.darc.de/
-
Funkgeräteeinbau in Kraftfahrzeuge wesentlich erleichtert

Nach einer Mitteilung des Kraftfahrtbundesamtes 
in Flensburg wurde durch eine Bekanntmachung im 
Verkehrsblatt die Richtlinie 2004/104/EG im 
Bundesgebiet in Kraft gesetzt. Diese Richtlinie 
ersetzt die 95/54/EG. Das bedeutet, dass alle 
neuen Funkgeräte in Kraftfahrzeuge eingebaut 
werden dürfen, die ein CE-Zeichen oder ein 
E-Zeichen tragen! Eine E-Zulassung der 
Transceiver ist damit nicht mehr erforderlich.
 
Die CE-Kennzeichnung reicht aus, wenn eine 
Bescheinigung beiliegt, dass das Funkgerät 
nicht im Zusammenhang mit der Störfestigkeit 
(sicherheitsrelevante Funktionen) steht. Als 
neue Funkgeräte sind die zu bezeichnen, die 
ab dem 11. Januar 2005 in Verkehr gebracht 
wurden. Insbesondere betroffen sind hiervon PKW und 
LKW mit Erstzulassungsdatum ab dem 1. Oktober 2002 
sowie Krafträder und Trikes mit Erstzulassungsdatum 
ab dem 17. Juni 2003. So genannte Altgeräte (vor 
dem 11.1.2005) werden von der Richtlinie 2004/104/EG 
nicht mehr erfasst und müssen lediglich die 
Vorschriften zum Zeitpunkt ihres erstmaligen 
Inverkehrbringens erfüllen. Einer Weiterverwendung 
durch wieder Einbau, auch in neuen Kraftfahrzeugen, 
steht nichts im Wege. 
-
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[Elecraft] K3 into VK

2007-11-15 Thread Glenn McNeil

Hi Group,

Well, at last...my K3/10 has arrived in VK...delivery now Monday next 
week according to UPS ( I'm quite a distance from Sydney, where the K3 
will be spending the Weekend ). Many thanks to the overworked Lisa, who 
is doing a fantastic job to satisfy a lot of very keen expectant K3 Owners !

So, sometime next week, a K3 will burst to life in VK Land.

73
Glenn
VK4TZL/VK4BG

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Re: Re: [Elecraft] K3 CE

2007-11-15 Thread Stewart Baker
In the past the authorities were concerned with amateurs causing interference
to domestic radio/television reception and all other government services.
Now it is the amateur that has the problem.

We now have to contend with radio interference to our hobby from:-
TV's (LCD  Plasma), Cable TV, PLT, HomePlug, Switch Mode PSU's either
freestanding (wall warts) or in-built(Computer), electronic controls in anything
from a central heating boiler to a sewing machine . et .al.

It's a bit ironic that, as rigs such as the K3 are now being sold with a superb
receive performance that many amateurs are unable to use due to increasing 
radio spectrum pollution.

Many items sold into the domestic market would appear to be either non -
compliant, or have a test standard applied that is most advantageous to their
products. A lot of items are able to cause HF interference because, the only
radiated emissions testing required is carried out above 30MHz. Below 30MHz only
the conducted interference on the supply lead is tested.

In the UK the enforcing agency is the Trading Standards. They are lacking in
funding, manpower and technical knowledge to deal with anything other than life
threatening issues (i.e. Lead paint on toys).

As far as the EMC part of CE goes, it promised a lot, but has delivered very
little

Stewart G3RXQ
Member RSGB EMC Committee

On Thu, 15 Nov 2007 08:51:20 +, Julian G4ILO wrote:
 On Nov 15, 2007 8:24 AM, [EMAIL PROTECTED] wrote:
 Don't forget that, aside from CE marking, you are deemed to be techniclly
 competent as an Advanced licence holder and can therefore build your own
 kit and operate it within the terms of your licence. You are right in
 saying that you can import your own kit for your own use and if you sell
 it, it is not as a business for general sale of lots of these.

 Coincidentally the December RadCom EMC column, page 43, has a
 discussion that is relevant to this.

 It explains that the regulations apply to goods that are placed on
 the market or taken into service. New goods sold commercially are
 placed on the market but (the article states) it is clear from
 examples like very noisy (and CE marked!) Chinese made switch mode
 wall warts sold on eBay that the local Trading Standards are doing
 nothing about enforcement (and from personal knowledge they have
 neither the manpower nor the technical competence to do so.) Second
 hand goods sold on eBay or at a flea market are not placed on the
 market. However, the purchaser is taking it into service and
 therefore becomes responsible for its EMC compliance.

 Although, as you say, we as radio hams should be competent to decide
 whether our equipment meets the standards or not, the average person
 buying a wall wart battery charger or whatever certainly isn't.

 Therefore this whole CE marking busines seems to me to be a total
 waste of time, as it is either unenforced or unenforceable.


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Re: Re: [Elecraft] K3 CE

2007-11-15 Thread Julian G4ILO
This is, unfortunately, so true. It is getting to the stage when I
wonder how much longer it is possible for someone in my situation to
operate a stealth station in a crowded urban housing estate. It is
not the limited size of my antennas that is the problem but the
interference I have to contend with. I can turn off my electrics and
it makes little difference to the noise level, which is often S3-S5 on
the K3's rather stingy S meter.

As for the situation in Germany, well if that's the law and people
will actually check up on it then you have to go along with it. But
only a politician could bring about a situation where it is an offense
to use equipment that doesn't have a worthless sticker on it. And CE
certification is worthless unless it guarantees that the equipment
meets a worthwhile standard.

I think the only solution that would solve the interference problem
would involve type approval of equipment by independent tester.
Clearly you can't rely on all manufacturers to self-certify with any
degree of honesty. And given the lack of enforcement in the UK there
is no reason for anyone to do more than pay lip service to the
regulations. No doubt you can buy rolls of self adhesive CE stickers
from some Chinese vendor on eBay...

But despite the benefits to us hams of type approval, I'm not sure I'd
like the extra costs and restricted range of products such a measure
would result in. I can remember just how expensive modems were in the
80s when they had to be type approved by the monopoly telecoms
provider.
-- 
Julian, G4ILO K2 s/n: 392  K3 s/n: ???
G4ILO's Shack: www.g4ilo.com
Zerobeat Ham Forums: www.zerobeat.net/smf

On Nov 15, 2007 10:16 AM, Stewart Baker [EMAIL PROTECTED] wrote:
 In the past the authorities were concerned with amateurs causing 
 interference
 to domestic radio/television reception and all other government services.
 Now it is the amateur that has the problem.

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[Elecraft] Elecraft] K3 into VK

2007-11-15 Thread David Douglass

Hi Glenn, 

Seeing as you are so far from Sydney, I could pop down and pick it up for
you  I’ll even give it a try out and will return it (maybe) after CQWW
next weekend.

Seriously though, well done, I would imagine this might be the first one in
the Lucky Country !!!

Regards

David, VK2NU


Hi Group,

Well, at last...my K3/10 has arrived in VK...delivery now Monday next 
week according to UPS ( I'm quite a distance from Sydney, where the K3 
will be spending the Weekend ). Many thanks to the overworked Lisa, who 
is doing a fantastic job to satisfy a lot of very keen expectant K3 Owners !
So, sometime next week, a K3 will burst to life in VK Land.

73
Glenn
VK4TZL/VK4BG


No virus found in this outgoing message.
Checked by AVG Free Edition. 
Version: 7.5.503 / Virus Database: 269.15.32/1131 - Release Date: 14/11/2007
4:54 PM
 

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Re: Re: [Elecraft] K3 CE

2007-11-15 Thread dj7mgq
 As for the situation in Germany, well if that's the law and people
 will actually check up on it then you have to go along with it.

Actually what I sent to the reflector was about the German implementation of a
European Union regulation, i.e. it is also the law in the France, Italy,
Spain, Poland, Sweden, Malta, Greece, the U.K. etc.

To see more about 2004/104/EG you could take a look at:
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32004L0104:EN:NOT

Commission Directive 2004/104/EC of 14 October 2004 adapting to technical
progress Council Directive 72/245/EEC relating to the radio interference
(electromagnetic compatibility) of vehicles and amending Directive 70/156/EEC on
the approximation of the laws of the Member States relating to the type-approval
of motor vehicles and their trailersText with EEA relevance

If the above makes sense or not: This is one reason why it is important that at
least the factory built K3s have a CE Marking. 

vy 73 de toby
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Re: [Elecraft] K3 CE

2007-11-15 Thread Ian White GM3SEK

Julian G4ILO wrote:


Don't forget that, aside from CE marking, you are deemed to be
techniclly competent as an Advanced licence holder and can
therefore build your own kit and operate it within the terms of
your licence. You are right in saying that you can import your
own kit for your own use and if you sell it, it is not as a
business for general sale of lots of these.

Coincidentally the December RadCom EMC column, page 43, has a 
discussion that is relevant to this.


It explains that the regulations apply to goods that are placed on the 
market or taken into service. New goods sold commercially are 
placed on the market but (the article states) it is clear from 
examples like very noisy (and CE marked!) Chinese made switch mode wall 
warts sold on eBay that the local Trading Standards are doing nothing 
about enforcement (and from personal knowledge they have neither the 
manpower nor the technical competence to do so.) Second hand goods sold 
on eBay or at a flea market are not placed on the market. However, 
the purchaser is taking it into service and therefore becomes 
responsible for its EMC compliance.


Although, as you say, we as radio hams should be competent to decide 
whether our equipment meets the standards or not, the average person 
buying a wall wart battery charger or whatever certainly isn't.


Therefore this whole CE marking busines seems to me to be a total waste 
of time, as it is either unenforced or unenforceable.


Sorry, I don't agree. Overall, I think the European EMC regulations have 
been a success - so much so that we take them for granted. It's always 
the leakage around the system that gets the publicity, and it only takes 
one small thing like an unfiltered wall wart to cause problems for us.


The vast majority of electronic and electrical appliances coming into 
European homes are 'mainstream' products from European companies, or 
from international companies with substantial business operations in 
Europe. Regardless of where they were actually manufactured, these 
products do comply with all the relevant product standards. European 
radio amateurs have definitely benefited from this. The RFI mailing list 
has frequent horror stories from the USA that just don't happen over 
here any more.


As licensed amateurs we are personally responsible for EMC compliance, 
the only difference being that we don't have to provide formal 
demonstrations or documentation.


For kits and ready-made amateur radio equipment imported from outside 
Europe, practical experience is that personal importers are never asked 
to demonstrate compliance. I can certainly confirm that as an exporter 
of kits and boards to the rest of Europe, the USA and around the world - 
in over a thousand transactions, never a single challenge.


According to Wayne's posting a couple of weeks ago, Elecraft has already 
done the testing to demonstrate compliance with the relevant European 
standards - which the K3 passed easily, of course. As soon as all the 
necessary documentation has been assembled, they will immediately become 
legally entitled to attach a CE sticker (they don't have to file it with 
anyone else). But, quite rightly, that isn't Elecraft's main priority 
just now.


For K3s being imported into Europe at present, that leaves only the most 
trivial technicality: a product that does in fact meet all the relevant 
European standards, but doesn't have a CE marking to say so.


Worrying about such little things is a symptom of severe K3 deprivation! 
Fortunately, there is also a complete cure for this condition   :-)


As soon as the documentation does comes into existence, the owners of 
unmarked K3s will become legally entitled to attach a CE sticker 
themselves. They don't need any documentation to do this; it is 
sufficient to know that valid documents exist. They'll be in the bottom 
of a locked filing cabinet, in a cellar on a planet called Aptos.




--

73 from Ian GM3SEK
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Re: Re: [Elecraft] K3 CE

2007-11-15 Thread Julian G4ILO
On Nov 15, 2007 11:45 AM, Ian White GM3SEK [EMAIL PROTECTED] wrote:

 As soon as the documentation does comes into existence, the owners of
 unmarked K3s will become legally entitled to attach a CE sticker
 themselves. They don't need any documentation to do this; it is
 sufficient to know that valid documents exist. They'll be in the bottom
 of a locked filing cabinet, in a cellar on a planet called Aptos.

Couldn't we just self-certify it?

On Nov 15, 2007 12:02 PM,  [EMAIL PROTECTED] wrote:

 If the above makes sense or not: This is one reason why it is important that 
 at
 least the factory built K3s have a CE Marking.

OK, Toby, I think we'll never agree on the importance of abiding by
laws that are not enforced. Here, the police can't even be bothered to
do anything about drunken and rowdy behaviour or crazy driving by
young people in the town centre at weekends. The thought of them
bothering to check if a radio has a CE sticker is simply unimaginable.

-- 
Julian, G4ILO K2 s/n: 392  K3 s/n: ???
G4ILO's Shack: www.g4ilo.com
Zerobeat Ham Forums: www.zerobeat.net/smf
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Re: Re: [Elecraft] K3 CE

2007-11-15 Thread d.cutter
In the case of vehicles it will be e marking (lower case).

David
G3UNA

 
 From: [EMAIL PROTECTED]
 Date: 2007/11/15 Thu AM 09:24:45 GMT
 To: elecraft elecraft@mailman.qth.net
 Subject: Re: [Elecraft] K3 CE
 
  Therefore this whole CE marking busines seems to me to be a total
  waste of time, as it is either unenforced or unenforceable.
 
 Without wanting to pass judgement on the sense of CE Markings or lack thereof,
 one must not forget, that (at least in DL) if you want to use a new rig in a
 new car, then it *must* have a CE Marking.
 
 This according the DARC (the German version of the RSGB).
 
 vy 73 de toby
 
 
 
 PS: For the German speakers out there...
 
 Source: http://www.darc.de/
 -
 Funkgeräteeinbau in Kraftfahrzeuge wesentlich erleichtert
 
 Nach einer Mitteilung des Kraftfahrtbundesamtes 
 in Flensburg wurde durch eine Bekanntmachung im 
 Verkehrsblatt die Richtlinie 2004/104/EG im 
 Bundesgebiet in Kraft gesetzt. Diese Richtlinie 
 ersetzt die 95/54/EG. Das bedeutet, dass alle 
 neuen Funkgeräte in Kraftfahrzeuge eingebaut 
 werden dürfen, die ein CE-Zeichen oder ein 
 E-Zeichen tragen! Eine E-Zulassung der 
 Transceiver ist damit nicht mehr erforderlich.
  
 Die CE-Kennzeichnung reicht aus, wenn eine 
 Bescheinigung beiliegt, dass das Funkgerät 
 nicht im Zusammenhang mit der Störfestigkeit 
 (sicherheitsrelevante Funktionen) steht. Als 
 neue Funkgeräte sind die zu bezeichnen, die 
 ab dem 11. Januar 2005 in Verkehr gebracht 
 wurden. Insbesondere betroffen sind hiervon PKW und 
 LKW mit Erstzulassungsdatum ab dem 1. Oktober 2002 
 sowie Krafträder und Trikes mit Erstzulassungsdatum 
 ab dem 17. Juni 2003. So genannte Altgeräte (vor 
 dem 11.1.2005) werden von der Richtlinie 2004/104/EG 
 nicht mehr erfasst und müssen lediglich die 
 Vorschriften zum Zeitpunkt ihres erstmaligen 
 Inverkehrbringens erfüllen. Einer Weiterverwendung 
 durch wieder Einbau, auch in neuen Kraftfahrzeugen, 
 steht nichts im Wege. 
 -
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Re: [Elecraft] K3 CE

2007-11-15 Thread Ian White GM3SEK

Julian G4ILO wrote:



As soon as the documentation does comes into existence, the owners of
unmarked K3s will become legally entitled to attach a CE sticker
themselves. They don't need any documentation to do this; it is
sufficient to know that valid documents exist. They'll be in the bottom
of a locked filing cabinet, in a cellar on a planet called Aptos.


Couldn't we just self-certify it?



Not just out of thin air. Somebody, somewhere has to do the work.


--

73 from Ian GM3SEK
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[Elecraft] K3 CE - needs e marking too for mobile use

2007-11-15 Thread Dave G4AON

Toby DJ7MGQ wrote

Without wanting to pass judgement on the sense of CE Markings or lack thereof,
one must not forget, that (at least in DL) if you want to use a new rig in a
new car, then it *must* have a CE Marking.

In the EU anything added to a car, including radio equipment, must also carry an e mark 
in addition to a CE mark.

More work for Eric and Wayne!

73 Dave, G4AON
K3/100 kit now shipped via UPS, ordered 30 April 2007



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Re: [Elecraft] K3 CE - needs e marking too for mobile use

2007-11-15 Thread Julian G4ILO
On Nov 15, 2007 2:15 PM, Dave G4AON [EMAIL PROTECTED] wrote:

 In the EU anything added to a car, including radio equipment, must also carry 
 an e mark in addition to a CE mark.

 More work for Eric and Wayne!

Wouldn't that apply only if it is fitted to the vehicle, not perched
on the seat and operated while the vehicle is parked?

-- 
Julian, G4ILO K2 s/n: 392  K3 s/n: ???
G4ILO's Shack: www.g4ilo.com
Zerobeat Ham Forums: www.zerobeat.net/smf
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Re: [Elecraft] Need some help on a K1 problem.

2007-11-15 Thread Andrew Moore
 Any new ideas out there? Anybody else have this same or similar problem?

Don't overlook the possibility that a socketed microprocessor chip got
one of its legs splayed out and isn't actually in the socket.
Scrutinizing solder joints won't help in that scenario, and it's easy
to overlook.  It happened to me once or twice before.

--Andrew
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Re: [Elecraft] Need some help on a K1 problem.

2007-11-15 Thread Don Wilhelm

Len,

Are you certain it is a relay problem?
Does your 4 band board work on 15/17 meters without manually setting any 
relays? 
If it is a relay problem, the reset state of the relays is with the 15 
meter band selected and you should be able to align and operate it on 
that band.


Can you turn the attenuator on and off with this 4 band board 
installed?  If so, the IOC chip is working and the resonator is good.


If you do have a relay problem, make continuity checks from the U1 pins 
to pin 8 of each relay (check the schematic to determine the 
corresponding pins of U1), and check continuity from P2 pin 3 to each of 
the relays Pin 1.  When checking to the U1 pins, plug the firmware chip 
in and measure from the actual lead of the chip rather than the socket - 
that will reveal any socket problems.


Check the resistance of each relay coil to see if you might have one 
with an open coil.


Too much solder can mask a bad solder connection.  If your solder 
fillets have a convex shape to them, you have too much solder applied - 
wick the excess away.  A good solder joint will have a small fillet with 
a concave appearance where the solder flows out to a nearly invisible 
edge on both the solder pad and the component lead.  You may not believe 
how many problems I have fixed simply by removing the excess solder and 
reflowing solder in the process.  At least 40% of the problems builders 
have are soldering related and at least 40% are toroid lead problems, 
another 18% are incorrect component placement while the remaining 2% can 
be attributed to bad parts (usually damaged by the builder).


73,
Don W3FPR

Len [K4IWL] wrote:

I'm hoping that there are still some K1 aficionados out there.
 
 
I ordered my K1 with the 4-band-filter board. I was not able to get the

4-band-filter to work so I ordered the 2-band-filter (since it's a simpler
board) so I could determine if it's a problem with the K1 main board or the
filter board. To make a long story short, the K1 with the 2-band-filter
works perfectly (40/20M) and the relay switching works. I then finished the
KAT and it works with the 2BFB just fine.
 
But here's the problem, I am still debugging the 4-band-filter inbetween

using the K1 with the 2BFB. When I plug in the 4BFB there is no relay
activity at all when I switch bands. The relays stay in the reset position.
I have run out of ideas. Here is what I've done:
Replaced the 4MHz resonator. Replaced the IOC with a spare that I have. So
far nothing works. I have visually inspected every solder joint. I have
reflowed the solder on all the IOC and resonator pads. I have checked
continuity between the IOC pins and the relays and they are all solid. I
have checked the common connection to all the relays for shorts and opens. I
have checked continuity through RFC1. There are no shorts that I have
detected or seen on the board (solder splashes, globs, etc.) although I'm
not ruling that out yet. Nothing I've done fixes it.
 
Any new ideas out there? Anybody else have this same or similar problem? The

relay switching has nothing to do with the RF paths, these appear OK when I
manually apply 1.5V to selected relays for the band configuration. RF is
getting through as it should on each of the 4 bands. Oh .. yeh ... I am not
getting any error codes on the display either. And when I switch the bands
with the front panel switch, the display changes but no relays activate.
 
72,

LEN, K4IWL
www.qrz.com/k4iwl
K2 #848,  K1 #1221,  Wilderness Radio Sierra (another Wayne rig),
Every RockMite imaginable, and a 15M HiMite.

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[Elecraft] K3 CE - needs e marking too for mobile use

2007-11-15 Thread Dave G4AON

Julian, G4ILO, wrote:


Wouldn't that apply only if it is fitted to the vehicle, not perched
on the seat and operated while the vehicle is parked?

Yes, I am fairly certain that is the case.  For a flavour of the 
legislation, see:

http://www.hants.gov.uk/regulatory/tradingstandards/auto.html

Phew...

73 Dave, G4AON

K3/100 kit now shipped via UPS, ordered 30 April 2007



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Re: [Elecraft] K3 CE - needs e marking too for mobile use

2007-11-15 Thread dj7mgq
 In the EU anything added to a car, including radio equipment, must also carry
 an e mark in addition to a CE mark.

According to 2004/104/EG, not anymore. A CE Marking plus the correct
documentation from the car manufacturer is all that is needed now.

vy 73 de toby
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Re: [Elecraft] K3 CE - needs e marking too for mobile use

2007-11-15 Thread d.cutter
Yes, only if the equipment is a permanent part of the vehicle, like the 
radio/stereo/etc does it need the e mark.

David
G3UNA

 
 From: Dave G4AON [EMAIL PROTECTED]
 Date: 2007/11/15 Thu PM 02:59:07 GMT
 To: elecraft@mailman.qth.net
 Subject: [Elecraft] K3 CE - needs e marking too for mobile use
 
 Julian, G4ILO, wrote:
 
 
 Wouldn't that apply only if it is fitted to the vehicle, not perched
 on the seat and operated while the vehicle is parked?
 
 Yes, I am fairly certain that is the case.  For a flavour of the 
 legislation, see:
 http://www.hants.gov.uk/regulatory/tradingstandards/auto.html
 
 Phew...
 
 73 Dave, G4AON
 
 K3/100 kit now shipped via UPS, ordered 30 April 2007
 
 
 
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Re: [Elecraft] K3 CE - needs e marking too for mobile use

2007-11-15 Thread Julian G4ILO
On Nov 15, 2007 2:59 PM, Dave G4AON [EMAIL PROTECTED] wrote:

 Yes, I am fairly certain that is the case.  For a flavour of the
 legislation, see:
 http://www.hants.gov.uk/regulatory/tradingstandards/auto.html

This is interesting:

Which items do not need to be e-marked?

[snip]

* Equipment installed in their own vehicle by persons who are able
to demonstrate competence (for example radio amateurs). However,
equipment designed by a commercial producer for use by radio amateurs
is not exempt.

So I could install my home built radio in my car, and presumably my
built-from-a-kit K2 or 3, but if you buy it ready made it needs to be
marked.

Heck, would our lives really be worse if we didn't have people whose
jobs it is to come up with this stuff?

-- 
Julian, G4ILO K2 s/n: 392  K3 s/n: ???
G4ILO's Shack: www.g4ilo.com
Zerobeat Ham Forums: www.zerobeat.net/smf
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[Elecraft] XG2 - Kit and Drake R7 and Orion II Comparison

2007-11-15 Thread Tom Childers, N5GE
Good morning.

I finished building an XG2 last evening and used my Drake R7 and Orion II as the
test beds for the XG2.  

Results:  The R7 receives the 1 micro volt signals on all three bands better
than the Orion II (less RX noise and clearer tone).  I did not do the SN
calculations scientifically, but to my ear the R7 was the better RX.

The R7 will be 30 years old next spring and has not been aligned since the 80s.
I look forward to receiving my K3 in late January 2008.

Tom, N5GE

http://www.n5ge.com
http://www.eQSL.cc/Member.cfm?N5GE

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RE: [Elecraft] XG2 - Kit and Drake R7 and Orion II Comparison

2007-11-15 Thread Ken Bessler

 From: [EMAIL PROTECTED]
 To: Elecraft@mailman.qth.net
 Date: Thu, 15 Nov 2007 09:52:17 -0600
 CC: [EMAIL PROTECTED]
 Subject: [Elecraft] XG2 - Kit and Drake R7 and Orion II Comparison

 Good morning.

 I finished building an XG2 last evening and used my Drake R7 and Orion II as 
 the
 test beds for the XG2.

 Results: The R7 receives the 1 micro volt signals on all three bands better
 than the Orion II (less RX noise and clearer tone). I did not do the SN
 calculations scientifically, but to my ear the R7 was the better RX.

 The R7 will be 30 years old next spring and has not been aligned since the 
 80s.
 I look forward to receiving my K3 in late January 2008.

 Tom, N5GE


Tom I did the same tests with a XG-2 and K2 #4913, a TS-850SAT and a Drake TR4.

The TR4 beat 'em all. Still, I plan on ordering a K3 this spring. It'll be very 
interesting
to see how the venerable TR4 (1969 production) fares against the best rig on 
the 
market.

Ken


73's de Ken KG0WX - Kadiddlehopper #11808,
Flying Pigs #-1055, Grid EM17ip





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[Elecraft] K1-4 02257

2007-11-15 Thread Robert Kalkwarf
Hello All,
I have K1-4 #02257 40 30 20 15 w/ all options but BAT and Stand.  Extra 2
band 80 17 include with docs.  I am looking for K2 kits.  DSP KIO or what have
you.  Thanks, Bob W7WO K2 #4400

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Re: [Elecraft] XG2 - Kit and Drake R7 and Orion II Comparison

2007-11-15 Thread Kurt Pawlikowski

Tom,

   Interesting! I've got the XG2 and a R-4C. I was told by Rob Sherwood 
(of Sherwood engineering) that at 1 micro-volt, the meter should be at 
S-3 and 20 over when set to 50 micro-volts. Since my rig was nowhere 
near that and I couldn't seem to make it any better when adjusting it, I 
packed it up and sent it to Rob to play with. It could also be that my 
XG2 has some sort of problem too! Guess I should have sent it along for 
testing! We'll see!


   Also, just wondering what kind of S-meter readings you were getting 
at the different XG2 settings from the two rigs.


   Regards,

   kurtt

   Kurt Pawlikowski, AKA WB9FMC
   The Pinrod Corporation
   [EMAIL PROTECTED]
   (773) 284-9500
   http://pinrod.com

Tom Childers, N5GE wrote:

Good morning.

I finished building an XG2 last evening and used my Drake R7 and Orion II as the
test beds for the XG2.  


Results:  The R7 receives the 1 micro volt signals on all three bands better
than the Orion II (less RX noise and clearer tone).  I did not do the SN
calculations scientifically, but to my ear the R7 was the better RX.

The R7 will be 30 years old next spring and has not been aligned since the 80s.
I look forward to receiving my K3 in late January 2008.

Tom, N5GE

http://www.n5ge.com
http://www.eQSL.cc/Member.cfm?N5GE

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Re: [Elecraft] XG2 - Kit and Drake R7 and Orion II Comparison

2007-11-15 Thread Tom Childers, N5GE
On Thu, 15 Nov 2007 10:40:55 -0600, you wrote:

I don't remember exactly, but it was like this:

R7 S meter readings were all S9 at 50mv.  With the preamp on they were all
around 20db over s9.

Orion II S meter readings were all around S9 at 50mv with the preamp off and 20
- 30db over S9 with it on.

I've just finished the R7 MDS calculations:

80m: -121db
40m: -129db
20m: -129db

Remember; the R7 hasn't had any maintenance alignment since the 80s, so I
thought the old geezer did pretty well :o)

It's not realistic to do MDS calculations on the Orion II rig, because the AGC
off setting does not really turn the AGC off.  It just sets the decay rate at
1000db per second, which prevents getting good RMS readings from the speaker or
headphone connections.  I found this out while trying to peak my XV144 RX on
random noise with the N-GEN using the Orion II.  I finally had to connect the
XV144 to an FT1000MP MK V to do the adjustment. 

Tom,

Interesting! I've got the XG2 and a R-4C. I was told by Rob Sherwood 
(of Sherwood engineering) that at 1 micro-volt, the meter should be at 
S-3 and 20 over when set to 50 micro-volts. Since my rig was nowhere 
near that and I couldn't seem to make it any better when adjusting it, I 
packed it up and sent it to Rob to play with. It could also be that my 
XG2 has some sort of problem too! Guess I should have sent it along for 
testing! We'll see!

Also, just wondering what kind of S-meter readings you were getting 
at the different XG2 settings from the two rigs.

Regards,

kurtt

Kurt Pawlikowski, AKA WB9FMC
The Pinrod Corporation
[EMAIL PROTECTED]
(773) 284-9500
http://pinrod.com

Tom Childers, N5GE wrote:
 Good morning.

 I finished building an XG2 last evening and used my Drake R7 and Orion II as 
 the
 test beds for the XG2.  

 Results:  The R7 receives the 1 micro volt signals on all three bands better
 than the Orion II (less RX noise and clearer tone).  I did not do the SN
 calculations scientifically, but to my ear the R7 was the better RX.

 The R7 will be 30 years old next spring and has not been aligned since the 
 80s.
 I look forward to receiving my K3 in late January 2008.

 Tom, N5GE

 http://www.n5ge.com
 http://www.eQSL.cc/Member.cfm?N5GE

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Tom, N5GE

http://www.n5ge.com
http://www.eQSL.cc/Member.cfm?N5GE

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[Elecraft] K2 s/n 4276 Output Power Instability

2007-11-15 Thread kc4wvl
K2 s/n 4276
Firmware Revision(s):  2.04P  1.09

After having a previous issue with the VCO alignment (p. 61), construction went 
forward without a hitch. At this point, I figured that any gremlins had been 
banished. Not so.

Another pesky gremlin has reared it's ugly head.  During transmitter alignment, 
the initial 40 meter alignment went down in accordance with the manual's 
expectations.  Receiver pre-alignment was straight forward.  Alignment of 20 
and 30 meter transmit went fine, then from that point on,  it all went downhill 
and the current issue began.  Regardless of which band or power setting, on 
entering TUNE, the power out readings rapidly vary across the entire scale. 
These rapidly changing readings are also reflected on my Diamond SK-600 
power/SWR meter as well as the readigs on the current meter of the power 
supply.  After a brief bit of time, the power out will sometimes stop 
fluctuating and settle down to the requested power setting. 

Might this be a problem with U-6, on the control board?

I would appreciate any insight of the possible cause of this issue and 
suggestions of any possible sollutions.

73's
William Smith
KC4WVL
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Re: [Elecraft] K2 s/n 4276 Output Power Instability

2007-11-15 Thread Don Wilhelm

William,

You said 40, 30 and 20 worked once, but not now - that says any problem 
is in an area shared by all bands.
The first thing to do would be to check the coax cables, any adapters 
and the dummy load for a bad connection.  I prefer to reduce any extra 
things in the setup because they too can be a source of trouble (and 
they are often overlooked).  Connect the K2 using a short piece of known 
good coax to a known good dummy load and try again.


If you continue to have problems, go back to 40 meters (which once 
worked) and use the Transmit Signal Tracing steps in the back of the 
manual to determine the failing stage.  If you have not already 
constructed the RF Probe from the supplied parts, now is a good time to 
do that.


We can help further if we know more about the failing stage or stages - 
right now, all we can say is that something is wrong somewhere - either 
inside or outside the K2.


I would not suspect U6 at this point - if you have a problem with the 
power control only, take a critical look at the Keying waveshape 
components mounted on the back of the Control Board (yes, they are part 
of the power control loop).


73,
Don W3FPR

kc4wvl wrote:

K2 s/n 4276
Firmware Revision(s):  2.04P  1.09

After having a previous issue with the VCO alignment (p. 61), construction went 
forward without a hitch. At this point, I figured that any gremlins had been 
banished. Not so.

Another pesky gremlin has reared it's ugly head.  During transmitter alignment, the initial 40 meter alignment went down in accordance with the manual's expectations.  Receiver pre-alignment was straight forward.  Alignment of 20 and 30 meter transmit went fine, then from that point on,  it all went downhill and the current issue began.  Regardless of which band or power setting, on entering TUNE, the power out readings rapidly vary across the entire scale. These rapidly changing readings are also reflected on my Diamond SK-600 power/SWR meter as well as the readigs on the current meter of the power supply.  After a brief bit of time, the power out will sometimes stop fluctuating and settle down to the requested power setting. 


Might this be a problem with U-6, on the control board?

  

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[Elecraft] N2CQ QRP Contest Calendar: Nov 15 - Dec 15, 2007

2007-11-15 Thread Ken Newman

~
N2CQ QRP CONTEST CALENDAR
November 15 - Dec 16, 2007
~
80 METER FOXHUNT (CW) *** QRP Contest ***
Each Tuesday to Mar 25
9 PM to 10:29 PM Eastern Time USA
Info: http://www.qrpfoxhunt.org/
~
40 METER FOXHUNT (CW) *** QRP Contest ***
Each Thursday to March 27
9 PM to 10:29 PM Eastern Time USA
Info: http://www.qrpfoxhunt.org/
~
YO International PSK31 Contest (80 Meters) ... 50W max
Nov 16, 1600z to 2200z
Rules: http://www.yo5crq.ro/Rules2007EN.htm
~
LZ DX CONTEST (CW/SSB) ... QRP Category
Nov 17, 1200z to Nov 18, 1200z
Rules: http://www.qsl.net/lz1fw/contest/
~
ARRL Sweepstakes (Phone) ... QRP Category
Nov 17, 2100z to Nov 19, 0300z
Rules: http://www.arrl.org/contests/calendar.html?year=2007
~
European PSK Club - PSK63 QSO Party ... 100W. Max
Nov 18, z to 2400z
Rules: http://www.eu.srars.org/
~
HOT Party (CW) ... QRP Category
Nov 18, 1300z to 1500z (40 Meters)
Nov 18, 1500z to 1700z (80 Meters)
(HOMEBREW  OLDTIME - EQUIPMENT - PARTY)
Rules: http://www.qrpcc.de/contestrules/hotr.html
~
RUN FOR THE BACON (CW) *** QRP CONTEST ***
EST: Nov 18, 9 PM to 11 PM
UTC: Nov 19, 0200z 0400z
Rules: http://www.gentzow.com/fpqrp/
~
NAQCC Straight Key/Bug Sprint *** QRP CONTEST! ***
EST: Nov 21, 8:30 PM to 10:30 PM
UTC: Nov 22, 0130z to 0330z
Rules: http://www.arm-tek.net/~yoel/contests.html
~
CQ World Wide DX Contest (CW) ... QRP Category!
Nov 24, z to Nov 25, 2400z
Rules: http://www.cqww.com/
~
MQFD Monthly Sprint (CW/PH/Digital) *** QRP Contest ***
Nov 24, 1800z to 2200z
Rules: http://w2agn.net/mqfdsprint.html
~
SKCC Weekend Sprint (Straight Key CW) ... QRP Category
Nov 25, z to z
Rules:
http://www.skccgroup.com/sprint/wes/wknd-sprint-rules.html
~
QRP ARCI Topband CW  SSB Sprint *** QRP CONTEST ***
Nov 29, z to 0600z
Rules: http://www.qrparci.org/
~
ARRL 160 meter Contest (CW) ... QRP Category
Nov 30, 2200z to Dec 2, 1600z
Rules: http://www.arrl.org/contests/calendar.html?year=2007
~
TARA RTTY Mêlée ... 150W category
Dec 1, z to 2400z
Rules: http://www.n2ty.org/seasons/tara_melee_rules.html
~
TOPS Activity 80 Meter Contest (CW) ... QRP Category
Dec 1, 1800z to Dec 2, 1800z
Rules: http://procwclub.yo6ex.ro/tacrules.htm
~
Adventure Radio Spartan Sprint (CW) *** QRP Contest ***
Dec 4, 0200z to 0400z  (First Monday 9 PM EST)
Rules: http://www.arsqrp.com/
~
ARRL 10 Meter Contest (CW/SSB) ... QRP Category
Dec 8, z to Dec 9, 2400z
Rules: http://www.arrl.org/contests/calendar.html?year=2007
~
SKCC Sprint (Straight Key CW)  ... QRP Awards
Dec 12, 0100z to 0300z
Rules: http://skccgroup.com/sprint/sprint-rules.htm
~
NAQCC Straight Key/Bug Sprint (CW) *** QRP Contest ***
EST: Dec 11, 8:30 PM to 10:30 PM
UTC: Dec 12, 0130Z to 0330Z
Rules: http://www.arm-tek.net/~yoel/contests.html
~
MDXA PSK-31/63 DeathMatch  ... QRP Category
Dec 15, z to Dec 16, 2400z
Rules: http://www.mdxa1.org/deathmatch.html
~
Croatian CW Contest (CW) ... QRP Category
Dec 15, 1400z to Dec 16, 1400z
Rules: http://www.sk3bg.se/contest/9acwc.htm
~
QRP ARCI:
Holiday Spirits Homebrew Sprint (CW) *** QRP Contest ***
Dec 16, 2000z to 2359z
Rules: http://www.qrparci.org
~
Thanks to SM3CER, WA7BNM, N0AX(ARRL), N2APB, WB3AAL and others
for assistance in compiling this calendar.

If you wish to subscribe to the Calendar,
send an e-mail to [EMAIL PROTECTED]

Please forward the contest info you sponsor to [EMAIL PROTECTED] and
we will post it and give it more publicity.
Anyone may use this N2CQ QRP Contest Calendar for your website,
newsletter, e-mail list or other media 

Re: [Elecraft] KAT100 with Ladder Line

2007-11-15 Thread Don Wilhelm

Curt,

There seems to be a misconception among hams that when using 450 ladder 
line, a 4:1 balun is the best thing to use.  While that may be true in 
some cases, in many other cases, a 1:1 balun will serve better.  It all 
depends on the feedpoint impedance of the feedline at the shack end, and 
that has little relationship with the fact that 450 ohm line is being 
used - i.e. the  feedpoint impedance is *not* the characteristic 
impedance of the transmission line in most cases.  The feedpoint 
impedance looking into the shack end of a multiband antenna can vary 
from extremely low to extremely high - it all depends on the length of 
the antenna and the length of the feedline.


That being said, I would suggest that you use an Elecraft BL2 right at 
the output of the KAT100.  Try it at the 1:1 setting first, and then try 
the 4:1 setting to see which produces the better results for each band.  
It would be informative to measure the impedance into the unbalanced end 
of the balun with an antenna analyzer on each band - use the setting 
that does not produce an extremely low of extremely high SWR on the 
analyzer.  Often adding or subtracting a length of feedline will bring 
the feedpoint impedance into a better range for matching.


73,
Don W3FPR

Curt Milton wrote:

I admit I enjoyed using a KAT100 at FD, but I wonder
how much value it would be at my station.  


For feeding my wire antenna with balanced line, I
suspect I need an external balun, that has to go
someplace, and better to be attached to one of the
tuner inputs.  Currently I use a manual MFJ tuner
(with its internal 4:1 balun) to operate my wire
antenna on 30, 40, 80 and 160m.  I can imagine the
autotuner being useful here, but I can't envision the
balun to use and how to attach it to the KAT100.  


My other antennas are 2 multiband verticals (80/40 and
20/17/15/12/10), and these are nicely matched where I
operate - so not much utility for the KAT100 here.  


So will a KAT100 make my QSY more seamless, and what
balun to use and how to integrate it ?

  

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Re: [Elecraft] XG2 - Kit and Drake R7 and Orion II Comparison

2007-11-15 Thread Kurt Pawlikowski

Wayne,

   Yeah... I was going from memory... Guess my refresh rate needs to be 
turned up... {'-)


   Regards,

   kurtt

   Kurt Pawlikowski, AKA WB9FMC
   The Pinrod Corporation
   [EMAIL PROTECTED]
   (773) 284-9500
   http://pinrod.com

wayne burdick wrote:

50 microvolts is S-9, not 20 over, in the Elecraft world  :)

I'll agree with Rob on 1 uV = about S3, though.

73,
Wayne
N6KR


On Nov 15, 2007, at 8:40 AM, Kurt Pawlikowski wrote:


Tom,

   Interesting! I've got the XG2 and a R-4C. I was told by Rob 
Sherwood (of Sherwood engineering) that at 1 micro-volt, the meter 
should be at S-3 and 20 over when set to 50 micro-volts. Since my rig 
was nowhere near that and I couldn't seem to make it any better when 
adjusting it, I packed it up and sent it to Rob to play with. It 
could also be that my XG2 has some sort of problem too! Guess I 
should have sent it along for testing! We'll see!


   Also, just wondering what kind of S-meter readings you were 
getting at the different XG2 settings from the two rigs.


   Regards,

   kurtt

   Kurt Pawlikowski, AKA WB9FMC
   The Pinrod Corporation
   [EMAIL PROTECTED]
   (773) 284-9500
   http://pinrod.com

Tom Childers, N5GE wrote:

Good morning.

I finished building an XG2 last evening and used my Drake R7 and 
Orion II as the

test beds for the XG2.
Results:  The R7 receives the 1 micro volt signals on all three 
bands better
than the Orion II (less RX noise and clearer tone).  I did not do 
the SN

calculations scientifically, but to my ear the R7 was the better RX.

The R7 will be 30 years old next spring and has not been aligned 
since the 80s.

I look forward to receiving my K3 in late January 2008.

Tom, N5GE

http://www.n5ge.com
http://www.eQSL.cc/Member.cfm?N5GE

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---

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[Elecraft] KAT100 with Ladder Line

2007-11-15 Thread Curt Milton
I admit I enjoyed using a KAT100 at FD, but I wonder
how much value it would be at my station.  

For feeding my wire antenna with balanced line, I
suspect I need an external balun, that has to go
someplace, and better to be attached to one of the
tuner inputs.  Currently I use a manual MFJ tuner
(with its internal 4:1 balun) to operate my wire
antenna on 30, 40, 80 and 160m.  I can imagine the
autotuner being useful here, but I can't envision the
balun to use and how to attach it to the KAT100.  

My other antennas are 2 multiband verticals (80/40 and
20/17/15/12/10), and these are nicely matched where I
operate - so not much utility for the KAT100 here.  

So will a KAT100 make my QSY more seamless, and what
balun to use and how to integrate it ?

73, curt



  

Never miss a thing.  Make Yahoo your home page. 
http://www.yahoo.com/r/hs
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RE: [Elecraft] KAT100 with Ladder Line

2007-11-15 Thread Craig Rairdin
For Field Day this year I had my K2 hooked up to a 130' dipole fed by ladder
line. We ran that to a 4:1 balun and a few feet of coax to the KAT100. It
tuned it up nicely on all bands. We had no trouble working anyone we called.

Craig
NZ0R

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Curt Milton
Sent: Thursday, November 15, 2007 11:50 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] KAT100 with Ladder Line


I admit I enjoyed using a KAT100 at FD, but I wonder
how much value it would be at my station.  

For feeding my wire antenna with balanced line, I
suspect I need an external balun, that has to go
someplace, and better to be attached to one of the
tuner inputs.  Currently I use a manual MFJ tuner
(with its internal 4:1 balun) to operate my wire
antenna on 30, 40, 80 and 160m.  I can imagine the
autotuner being useful here, but I can't envision the
balun to use and how to attach it to the KAT100.  

My other antennas are 2 multiband verticals (80/40 and
20/17/15/12/10), and these are nicely matched where I
operate - so not much utility for the KAT100 here.  

So will a KAT100 make my QSY more seamless, and what
balun to use and how to integrate it ?

73, curt



 


Never miss a thing.  Make Yahoo your home page. 
http://www.yahoo.com/r/hs
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Re: [Elecraft] KAT100 with Ladder Line

2007-11-15 Thread Goody K3NG
Using any balun with an unbalanced tuner to feed balanced line can be 
bad news (your mileage may vary, standard disclaimers apply).  Under 
highly reactive loads, a balun used like this can become quite lossy.  
There's a couple articles in publications and on the Internet on this, 
but Cebik's article is one that comes to mind ( 
http://www.cebik.com/link/l-bal.html ).  It's better to run a real 
balanced tuner like a Johnson Matchbox, the MFJ Balanced Line tuner, or 
others, if you can.


Don Wilhelm wrote:

Curt,

There seems to be a misconception among hams that when using 450 
ladder line, a 4:1 balun is the best thing to use.  While that may be 
true in some cases, in many other cases, a 1:1 balun will serve 
better.  It all depends on the feedpoint impedance of the feedline at 
the shack end, and that has little relationship with the fact that 450 
ohm line is being used - i.e. the  feedpoint impedance is *not* the 
characteristic impedance of the transmission line in most cases.  The 
feedpoint impedance looking into the shack end of a multiband antenna 
can vary from extremely low to extremely high - it all depends on the 
length of the antenna and the length of the feedline.

--

Blog: http://thek3ngreport.blogspot.com/

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[Elecraft] arrival

2007-11-15 Thread Dick Hanson
Number 50, a kit, has just arrived in Austin and inventory has begun.

Best,
Dick, K5AND

No virus found in this outgoing message.
Checked by AVG. 
Version: 7.5.503 / Virus Database: 269.15.33/1132 - Release Date: 11/15/2007
9:34 AM
 

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[Elecraft] K3 Covers

2007-11-15 Thread Barry McWilliams
I just received a K3 cover I ordered from www.compucover.com.  They make 
covers in custom sizes. Not having my K3 yet, I guessed at the size from 
the dimensions in the FAQ.  Wish I could confirm that it fits.  Their 
price was $14.95 plus $12.00 shipping (I thought the shipping was a bit 
high, but the total cost seemed ok.) It took about 2 weeks.


Barry, WK2S
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Re: [Elecraft] KAT100 with Ladder Line

2007-11-15 Thread Geoffrey Mackenzie-Kennedy

On Thursday, November 15, 2007 at 7:00 PM, Goody K3NG wrote:

Using any balun with an unbalanced tuner to feed balanced line can be bad 
news (your mileage may vary, standard disclaimers apply).  Under highly 
reactive loads, a balun used like this can become quite lossy.  There's a 
couple articles in publications and on the Internet on this, but Cebik's 
article is one that comes to mind ( 
http://www.cebik.com/link/l-bal.html ).  It's better to run a real 
balanced tuner like a Johnson Matchbox, the MFJ Balanced Line tuner, or 
others, if you can.


-

Well put Sir!

As a comment to the List, the usual type of cored current balun presented 
with a reactive load might appear not to be introducing loss because QSOs 
can be made, but as the members of our QRP fraternity well know contacts 
both 'local' and DX can be made using very low power given the right 
propagation conditions. Proof of this loss can be had by increasing Tx power 
up to the power rating of the balun at which point the balun could well 
explode if it has not already at a lower power, it will certainly becomes 
hot to touch. As K3NG says your mileage might vary because the antenna's 
feedpoint impedance as transformed by your feeder and seen by the balun 
might by happy fluke be non-reactive, feeder length and feeder impedance are 
factors, leaving only the R to deal with. If R turns out to be 200 ohms, 
then a 1:4 balun would work well with a Tx which wants to see a load of 50 
+j0.


FWIW I agree with K3NG that the classic balanced tuner such as used in the 
Matchbox is the best system to use when feeding a balanced line, good 
efficiency and versatile.


73,
Geoff
GM4ESD 


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[Elecraft] arrival

2007-11-15 Thread Don Rasmussen
Congrats to Dick!

Is it done yet? ;-)
Is it done yet? ;-)
Is it done yet? ;-)

[Elecraft] arrival
Dick Hanson dick at dkhanson.com 
Thu Nov 15 16:03:06 EST 2007 

Number 50, a kit, has just arrived in Austin and
inventory has begun.

Best,
Dick, K5AND

No virus found in this outgoing message.
Checked by AVG. 
Version: 7.5.503 / Virus Database: 269.15.33/1132 -
Release Date: 11/15/2007
9:34 AM


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[Elecraft] K3 carrying case?

2007-11-15 Thread Björn Mohr
Has anyone found a good protective carrying case for the K3? I am looking
for something like a Pelican case, but not necessarily that heavy duty...


73 de Björn /SM0MDG





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Re: [Elecraft] K3 Covers

2007-11-15 Thread John [K7SVV]

Barry,
   Would you let us know how it fits after you get your K3?

John   [K7SVV]

- Original Message - 
From: Barry McWilliams [EMAIL PROTECTED]

To: elecraft@mailman.qth.net
Sent: Thursday, November 15, 2007 2:42 PM
Subject: [Elecraft] K3 Covers


I just received a K3 cover I ordered from www.compucover.com.  They make 
covers in custom sizes. Not having my K3 yet, I guessed at the size from 
the dimensions in the FAQ.  Wish I could confirm that it fits.  Their price 
was $14.95 plus $12.00 shipping (I thought the shipping was a bit high, but 
the total cost seemed ok.) It took about 2 weeks.


Barry, WK2S
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--
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Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 
269.15.33/1132 - Release Date: 11/15/2007 9:34 AM





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Re: [Elecraft] KAT100 with Ladder Line

2007-11-15 Thread Don Wilhelm
You are quite correct.  My favorite tuner of all is a link coupled 
balanced tuner, and it is L B Cebik's favorite too - low loss and can be 
configured to match just about anything - series tuning for low 
impedances or parallel for higher impedances.  I have built many over 
the years.  No balun required anywhere. If I were able to bring 
ladderline into the shack, I would have one of my old balanced tuners 
with the plug-in coils to match the transmitter to the ladderline - but 
I can't do that (don't ask!), so I use resonant antennas fed with coax 
and clean up any required additional tuning with a KAT100.


But, one must admit that the KAT100 does offer a lot of convenience to 
the operator, even though it has some drawbacks - it is not balanced, 
and for those who are fortunate enough to bring ladderline into the 
shack, it can be used with a balun.  It is a workable solution as long 
as some cautions are observed to minimize the loss.  One cannot defeat 
the laws of physics, but for those who must use an unbalanced tuner and 
a ladderline fed multiband antenna, the KAT100 followed by a balun may 
be an acceptable solution.  Adjust the feedline length so as to provide 
a decent feedpoint impedance at the balun without a lot of reactance, 
and use a current type balun (a voltage balun just will not work well in 
this application), and one can get on the air - it certainly is better 
than no antenna at all.


73,
Don W3FPR

Goody K3NG wrote:
Using any balun with an unbalanced tuner to feed balanced line can be 
bad news (your mileage may vary, standard disclaimers apply).  Under 
highly reactive loads, a balun used like this can become quite lossy.  
There's a couple articles in publications and on the Internet on this, 
but Cebik's article is one that comes to mind ( 
http://www.cebik.com/link/l-bal.html ).  It's better to run a real 
balanced tuner like a Johnson Matchbox, the MFJ Balanced Line tuner, 
or others, if you can.



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Re: [Elecraft] KAT100 with Ladder Line

2007-11-15 Thread w2bvh
I've been using Cecil Moore's (W6RCA)  No-Tuner with 450 ohm ladder 
line for about 7 years along with a K2 / KAT-2 and it has been a 
pleasure to use and pretty effective.


It's basically a box of 5 4pdt relays out in the yard that switches 
in/out combinations of 16, 8, 4, 2 and 1 foot lengths of 450 ohm ladder 
line to the main 450 ohm feedline to get a close match in the shack, and 
the KAT2 does the rest. The input to the relay box is fed with RG8X with 
a bead balun on the coax right at the box input.  The idea is to switch 
just enough extra line in to get a current antinode at the antenna 
feedpoint for the frequency of operation. For a 80 meter half wave 
antenna (with 10 meter fan element tacked on), the main 450 ohm feedline 
is about 85-90 feet long. I've worked/confirmed ~140 countries using 
this antenna with 12 watts or less (mostly 5 watts). And I'm not much of 
a dx fanatic.


73,
Lenny W2BVH




Geoffrey Mackenzie-Kennedy wrote:

On Thursday, November 15, 2007 at 7:00 PM, Goody K3NG wrote:

Using any balun with an unbalanced tuner to feed balanced line can be 
bad news (your mileage may vary, standard disclaimers apply).  Under 
highly reactive loads, a balun used like this can become quite 
lossy.  There's a couple articles in publications and on the Internet 
on this, but Cebik's article is one that comes to mind ( 
http://www.cebik.com/link/l-bal.html ).  It's better to run a real 
balanced tuner like a Johnson Matchbox, the MFJ Balanced Line tuner, 
or others, if you can.


-

Well put Sir!

As a comment to the List, the usual type of cored current balun 
presented with a reactive load might appear not to be introducing loss 
because QSOs can be made, but as the members of our QRP fraternity 
well know contacts both 'local' and DX can be made using very low 
power given the right propagation conditions. Proof of this loss can 
be had by increasing Tx power up to the power rating of the balun at 
which point the balun could well explode if it has not already at a 
lower power, it will certainly becomes hot to touch. As K3NG says your 
mileage might vary because the antenna's feedpoint impedance as 
transformed by your feeder and seen by the balun might by happy fluke 
be non-reactive, feeder length and feeder impedance are factors, 
leaving only the R to deal with. If R turns out to be 200 ohms, then a 
1:4 balun would work well with a Tx which wants to see a load of 50 +j0.


FWIW I agree with K3NG that the classic balanced tuner such as used in 
the Matchbox is the best system to use when feeding a balanced line, 
good efficiency and versatile.


73,
Geoff
GM4ESD
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Re: [Elecraft] KAT100 with Ladder Line

2007-11-15 Thread Lamb, Dick Judy
I've been very pleased with my MFJ-974, a true balanced tuner.  My  
measurements of feedline current with RF ammeters indicate that  
overall it is as efficient as my home brew link coupled tuner with  
plug in coils.  I've used the MFJ tuner with several combinations of  
feedline lengths and radiator lengths, and I've never failed to get a  
perfect match on all bands from 80 m to 10 m.


I'd like also to mention that Dipole3.exe is an excellent, free, and  
very easy to use program for modeling a dipole fed with balanced  
line.  You can play with different values of feedline length and  
radiator length, as well as many other parameters, to determine  
efficiency and impedance at the transmitter end of the feedline.  One  
source of Dipole3.exe is http://www.smeter.net/software/dipole3.exe  .


Dick, K0KK


On Nov 15, 2007, at 1:00 , Goody K3NG wrote:
vf
Using any balun with an unbalanced tuner to feed balanced line can  
be bad news (your mileage may vary, standard disclaimers apply).   
Under highly reactive loads, a balun used like this can become  
quite lossy.  There's a couple articles in publications and on the  
Internet on this, but Cebik's article is one that comes to mind  
( http://www.cebik.com/link/l-bal.html ).  It's better to run a  
real balanced tuner like a Johnson Matchbox, the MFJ Balanced Line  
tuner, or others, if you can.


Don Wilhelm wrote:

Curt,

There seems to be a misconception among hams that when using 450  
ladder line, a 4:1 balun is the best thing to use.  While that may  
be true in some cases, in many other cases, a 1:1 balun will serve  
better.  It all depends on the feedpoint impedance of the feedline  
at the shack end, and that has little relationship with the fact  
that 450 ohm line is being used - i.e. the  feedpoint impedance is  
*not* the characteristic impedance of the transmission line in  
most cases.  The feedpoint impedance looking into the shack end of  
a multiband antenna can vary from extremely low to extremely high  
- it all depends on the length of the antenna and the length of  
the feedline.

--

Blog: http://thek3ngreport.blogspot.com/

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[Elecraft] Fw: #56 on the air

2007-11-15 Thread Ken Kopp
K3 #56 is on the air ... made one 40M CW QSO 
last night.  Now I need to learn to operate it! (:-))


Ken Kopp - K0PP
K2 # 5665
K3 # 56
[EMAIL PROTECTED]
or
[EMAIL PROTECTED]



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[Elecraft] Re: w: #56 on the air

2007-11-15 Thread wayne burdick
Great, Ken! There's always the Owner's Manual. I'm glad you were able 
to make a QSO without consulting it, though  ;)


Wayne
N6KR

On Nov 15, 2007, at 6:40 PM, Ken Kopp wrote:

K3 #56 is on the air ... made one 40M CW QSO last night.  Now I need 
to learn to operate it! (:-))




---

http://www.elecraft.com

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[Elecraft] computer headset for K2/K3 SSB

2007-11-15 Thread Christopher A. Kantarjiev
I was inspired to try to adapt the headset I use for VOIP to the K2, since I 
wanted to play with SSB a little. I got the idea from something that W2ENY is 
selling on ebay :-) I'm writing this up so it's in the archives in case someone 
else has the idea (and remembers to look).


How hard could this be, I figured? Well ... read on.

Finding the 8 pin part was easy at Radio Shack. I looked up the pinouts, hooked 
up PTT to a mono 1/8 jack and AF to another 1/8 jack. I plugged everything in, 
but got no audio response. That was just weird.


I fiddled around with plumbing for a while - I plugged the mic into my laptop 
and the laptop audio out to the adapter, and that worked. After an hour of 
pulling out my hair, I realize that the microphone is a noise-cancelling mic, 
and thus it must get power from somewhere.


A bunch of web searching led me to

http://www.epanorama.net/documents/pc/multimedia_microphones.html

which tells me that the PC standard is to supply +5 on the ring of the 
connector.

I also found

http://marc.info/?l=elecraftm=109408122407776w=2

in the Elecraft archives! I should have looked there first. It reminded me that 
there was +5V on pin 6. So I set about to put a 2.2K resistor in the 8-pin shell 
and use a stereo jack for the mic.


That didn't work, either. Huh? Oh. There's no voltage on pin 6. It turns out 
that when I installed the KSB2, I didn't strap all the pins in the mic 
configuration header, just 1/2/7/8. Easy to fix.


Hey! That was ... better. But intermittent. I couldn't figure out why. It took 
another hour or so to discover that I had slightly melted the insulation on the 
PTT lead in the 1/8 jack and it could short to ground! Also a straightforward 
fix, once I found it.


I'm trying to use this with VOX. I'm not sure I'm going to be happy with the 
results, though ... we'll see.


Mostly, though, I think I prefer CW!

73 de chris K6DBG


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[Elecraft] K3 carrying case?

2007-11-15 Thread Benny Aumala

Look for BILTEMA aluminium case for tools.
Easy to specialize for K3 with extras.
Cheap (16 Euros) and strong enough.

Benny OH9NB

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