KWZ 30 Kneisner & Doering Receiver
 

eBay item: 170526253934

dxAce
Michigan
USA

KWZ 30 Kneisner & Doering Receiver
 

On Fri, 13 Aug 2010 06:37:25 -0400, dxAce
wrote:

eBay item: 170526253934

dxAce
Michigan
USA

Not the most sensitive receiver but it had excellent digital filters
for its time. Very low distortion and great audio quality.

Guess they gave up on the KWZ-50. Anyone heard anything?

Jim

KWZ 30 Kneisner & Doering Receiver
 

wrote:

On Fri, 13 Aug 2010 06:37:25 -0400, dxAce
wrote:

eBay item: 170526253934

dxAce
Michigan
USA

Not the most sensitive receiver but it had excellent digital filters
for its time. Very low distortion and great audio quality.

Guess they gave up on the KWZ-50. Anyone heard anything?

Last I checked their website they appeared to be out of the receiver biz.

KWZ 30 Kneisner & Doering Receiver
 

I recall reading somewhere that the KWZ-30 had a unique method of
handling AM signal fading. It wasn't synchronous detection but
something else. Does anyone remember what it was?

KWZ 30 Kneisner & Doering Receiver
 

DEFCON 88 wrote:

I recall reading somewhere that the KWZ-30 had a unique method of
handling AM signal fading. It wasn't synchronous detection but
something else. Does anyone remember what it was?

See page 13 here where it mentions the AM demodulator, that may be it:

http://www.mwcircle.org/docs/receivers/kwz30.pdf

KWZ 30 Kneisner & Doering Receiver
 

On Aug 14, 2:12*pm, dxAce wrote:
DEFCON 88 wrote:
I recall reading somewhere that the KWZ-30 had a unique method of
handling AM signal fading. It wasn't synchronous detection but
something else. Does anyone remember what it was?

See page 13 here where it mentions the AM demodulator, that may be it:

http://www.mwcircle.org/docs/receivers/kwz30.pdf


Yes, that's it. Thanks!

KWZ 30 Kneisner & Doering Receiver
 

dxAce wrote:


DEFCON 88 wrote:

I recall reading somewhere that the KWZ-30 had a unique method of
handling AM signal fading. It wasn't synchronous detection but
something else. Does anyone remember what it was?

See page 13 here where it mentions the AM demodulator, that may be it:

http://www.mwcircle.org/docs/receivers/kwz30.pdf



A DSP synchronous detector. The K3 has one.

KWZ 30 Kneisner & Doering Receiver
 

On Aug 14, 4:27*pm, bm wrote:
On 14 Aug, 20:24, DEFCON 88 wrote:

On Aug 14, 2:12*pm, dxAce wrote:

DEFCON 88 wrote:
I recall reading somewhere that the KWZ-30 had a unique method of
handling AM signal fading. It wasn't synchronous detection but
something else. Does anyone remember what it was?

See page 13 here where it mentions the AM demodulator, that may be it:

http://www.mwcircle.org/docs/receivers/kwz30.pdf

Yes, that's it. Thanks!

The KWZ-30's audio quality is the best I've encountered on any HF
receiver. And I've had a few. And their Auto Notch function is second
to none - totally transparent when selected, and with practically no
effect on recovered audio quality.

Bjarne Mjelde
Berlevag, Arctic Norway

Are they still in business? The last time I tried to visit their
website, it was gone!

Steve

KWZ 30 Kneisner & Doering Receiver
 

On Aug 15, 3:25*pm, Steve wrote:
On Aug 14, 4:27*pm, bm wrote:





On 14 Aug, 20:24, DEFCON 88 wrote:

On Aug 14, 2:12*pm, dxAce wrote:

DEFCON 88 wrote:
I recall reading somewhere that the KWZ-30 had a unique method of
handling AM signal fading. It wasn't synchronous detection but
something else. Does anyone remember what it was?

See page 13 here where it mentions the AM demodulator, that may be it:

http://www.mwcircle.org/docs/receivers/kwz30.pdf

Yes, that's it. Thanks!

The KWZ-30's audio quality is the best I've encountered on any HF
receiver. And I've had a few. And their Auto Notch function is second
to none - totally transparent when selected, and with practically no
effect on recovered audio quality.

Bjarne Mjelde
Berlevag, Arctic Norway

Are they still in business? The last time I tried to visit their
website, it was gone!

Steve- Hide quoted text -

- Show quoted text -
The website seems to be out,indeed.

KWZ 30 Kneisner & Doering Receiver
 

On 14 Aug, 20:24, DEFCON wrote:

On Aug 14, 2:12 pm, wrote:

DEFCON 88 wrote:
I recall reading somewhere that the KWZ-30 had a unique method of
handling AM signal fading. It wasn't synchronous detection but
something else. Does anyone remember what it was?

See page 13 here where it mentions the AM demodulator, that may be it:

http://www.mwcircle.org/docs/receivers/kwz30.pdf



That requires a lot of processing power. It would follow that
latency would be high. If you're using WWV as a time standard for
something requiring very high precision, it would require a
correction step.

Still, that's a pretty clever way of doing it.

KWZ 30 Kneisner & Doering Receiver
 

http://www.devilfinder.com
Kneisner and Doerning Radio

I mispelled Doering, but even so, I got more results by mispelling.Do
you know German language? I don't.
cuhulin

KWZ 30 Kneisner & Doering Receiver
 

The toughest language to learn is Mississippian language.Unless you grew
up in it like I did.

http://www.devilfinder.com
Haley Barbour for President Iowa Caucus

Lordy, I Hope So!

Yesterday evening on local tv news, a couple of guys were discussing
Haley Barbour is mulling that.
cuhulin

KWZ 30 Kneisner & Doering Receiver
 

wrote:
http://www.devilfinder.com
Kneisner and Doerning Radio

I mispelled Doering, but even so, I got more results by mispelling.Do
you know German language? I don't.
cuhulin

English is a form of German

KWZ 30 Kneisner & Doering Receiver
 

On Aug 16, 8:44*am, wrote:
http://www.devilfinder.com
Kneisner and Doerning Radio

I mispelled Doering, but even so, I got more results by mispelling.Do
you know German language? I don't.
cuhulin


I took German in high school because I thought it would be easy. Boy,
was I in for a surprise. Much harder than I thought.

KWZ 30 Kneisner & Doering Receiver
 

On Aug 16, 2:39*pm, DEFCON 88 wrote:
On Aug 16, 8:44*am, wrote:

http://www.devilfinder.com
Kneisner and Doerning Radio

I mispelled Doering, but even so, I got more results by mispelling.Do
you know German language? I don't.
cuhulin

I took German in high school because I thought it would be easy. Boy,
was I in for a surprise. Much harder than I thought.

English is even harder to learn to speak (the actual grammar is a
joke).

KWZ 30 Kneisner & Doering Receiver
 

KWZ 30 Kneisner & Doering Receiver
 

dxAce wrote:

eBay item: 170526253934

Final price: $1025.00



dxAce
Michigan
USA

KWZ 30 Kneisner & Doering Receiver
 

On Aug 17, 4:04*am, dxAce wrote:
dxAce wrote:
eBay item: 170526253934

Final price: $1025.00





dxAce
Michigan
USA- Hide quoted text -

- Show quoted text -

KWZ30. And was sold apparently without much guarantee...

KWZ 30 Kneisner & Doering Receiver
 

wrote:

On Aug 17, 4:04 am, dxAce wrote:
dxAce wrote:
eBay item: 170526253934

Final price: $1025.00





dxAce
Michigan
USA- Hide quoted text -

- Show quoted text -

KWZ30. And was sold apparently without much guarantee...

Yeah, that did look just a bit fishy, didn't it?

KWZ 30 Kneisner & Doering Receiver
 

On Aug 17, 4:17*am, dxAce wrote:
wrote:
On Aug 17, 4:04 am, dxAce wrote:
dxAce wrote:
eBay item: 170526253934

Final price: $1025.00

dxAce
Michigan
USA- Hide quoted text -

- Show quoted text -

KWZ30. And was sold apparently without much guarantee...

Yeah, that did look just a bit fishy, didn't it?- Hide quoted text -

- Show quoted text -

I hope it works...

KWZ 30 Kneisner & Doering Receiver
 

On 8/17/2010 4:13 AM, wrote:

KWZ30. And was sold apparently without much guarantee...

Possibly you are new to eBay?

While a guarantee would be nice,

1) the condition was clearly stated as USED.

2) it clearly stated "Item is sold in as is condition."

3) This is not out of the ordinary, as 99% of used electronics on eBay
offered by private sellers IS sold "as is" (which is to say, no guarantee).

As always, Caveat Emptor.