Thanks Tom.................I was considering the DSP approach for a much
later model. When I was working at Rockwell-Collins, I did get to play with
the 95S-1 a little bit, and it seemed to be a good receiver. I did have an
HF-2050 for awhile, and it seemed pretty good.
I know that there are some companies like Gray Chip that make some digital
receiver devices, and I am sure that others have jumped onto the bandwagon.

Thanks again, Tom!

Tom2000 wrote in message
...
On Tue, 09 Sep 2003 13:10:56 GMT, "Pete KE9OA"
wrote:

My employer has given me the go ahead to design a new product. If there
is
enough interest, I will design a new MW receiver for the market. What
would
you be more interested in......................a small table top type, or
a
portable?
Performance wise, I am talking about something like that of an AOR7030.
I don't think that I would be inplementing Sync Detection, but a couple
of
I.F. bandwidths could be possible. Definitely, double conversion, and
digital readout, with good audio quality.
Would you want any presets? How about target price? Do you want a built
in
antenna, or external antenna only? High and low impedance antenna
inputs?
How about a built in tunable preselector?
E-mail me directly, and we will see what happens. Any of you who have
built
any of me receivers know what I am talking about...............I plan to
take the design to the next couple of steps up in performance.


Great news, Pete!

How about a different approach? Direct conversion architecture, tail
ended by a high-performance DSP processor.

Perhaps if you post your project's design constraints and target
customer base we could give you some real-world suggestions. The way
you phrased it, I'm very tempted to "ivory tower" you into the finest
tabletop that $23,000 can buy! g

Good luck with your project, and have fun. Please keep us apprised
of your progress.

Very 73,

Tom

The rotating antenna will be a definite. We will also be going with the
mechanical switch for power.

Pete

radiok3pi wrote in message
m...
Here are some non-technical requests.

Please, no slider controls for anything!

Also, please consider a mechanical on/off switch like the Sony 2010.
This enables one to keep in "on" state and turn it on/off via digital
timer and make unattended recordings and be able to vary the # of
recordings and length of them.

For battery power, please consider C or D cells for longer life. It
will also help add weight to the radio to prevent the slide around
problem.

Any chance of a gyro antenna, a la Panasonic RF-2200?

Thanks - please keep us updated!

Russ K3Pi

Oh, you never know!

Brenda Ann Dyer wrote in message
...
Looks like the price point on this wunderempfanger is going to be way more
than my pocketbook will cough up...

(@)@)
~~

Hi Gary,
Tube design is not one of my areas of expertise, but I do plan
on having a line out jack, so folks will be able to hook up the unit to the
amplifier of their choice, in addition to using the high quality built-in
amp.

Pete

Gray Shockley wrote in message
...
On Thu, 11 Sep 2003 17:29:22 -0500, radiok3pi wrote
(in message ):

Here are some non-technical requests.

Please, no slider controls for anything!


Russ got this right!! Slider controls have just gotta be the dirtiest
controls ever made. I think that the factory must put the dust in them as
part of the assembly process.


I'm going to throw this out (up? grin) just because I want to.


How 'bout separating the case into two separate cases: the radio itself
and
the audio section and speaker?

And, then, offering two audio sections: one solid-state and one with
tubes?



Gray Shockley
-----------------------
DX-392 DX-398
RX-320 DX-399
70¹ Longwire
Torus Tuner (3-13 MHz)
Select-A-Tenna
-----------------------
Vicksburg, MS US



Ouch! That hurt!!

Pete KE9OA wrote:
Tube design is not one of my areas of expertise, but I do plan
on having a line out jack, so folks will be able to hook up the unit to the
amplifier of their choice, in addition to using the high quality built-in
amp.

For that tube feel, you could connect the chassis to the power line, so
that connecting the line out to an amplifier or whatever is a REAL
adventure. :)

--
"Here, Outlook Express, run this program." "Okay, stranger."

Pete,

I just wanted to stress again that if you don't put a selectable-sideband synch
detector in the radio, then you MUST provide a way to do manual ECSS tuning,
which means SSB mode, passband tuning, and (very important) an ANALOG fine
tuning control to zero-beat on the carrier.

For what it's worth, I would not buy a radio for MW DXing that lacks these
features. I've been an MW DXer since the early 60's, and I think synchronous
detection or manual ECSS have been THE biggest MW DX advancements I've seen. I
know it's helped me tremendously. 5 continents heard on MW and counting!

Good luck on your project!

That sounds good, Kent. I may have met you; I started coming over there,
when I was still working for Rockwell-Collins, I think, back in 1998. It
was over at Bill D's house.

Pete

Kent wrote in message
...
I have been to a few of them, but not as many as I would like to. They
are
nice gatherings!!

I will email you direct so we can talk further!

Kent, K9EZ

"Pete KE9OA" wrote in message
...
Hi Kent,
I am up in Mount Prospect; if you want to come down and
audition one of the current units, that would be ok. I still have to
work
out the details for a high level AGC loop, and I am also working on a
low
noise synthesizer for the next generation, but feel free to shout me
down
when you are coming to town. Hey, have you ever made it to the Madison
DXer's gathering? One of the fellows has moved to Milwaukee, so the next
gathering will be in that town. This last one was pretty good, although
I
didn't make it. They did have some well known folks up there, such as
Gerry
Dexter, Neil Katsiros, etc.

Pete

Kent wrote in message
...
Willing to sell one of the "Current": units??

Also, you say you are in Chicago. What side of town? I get to
Chicago
on
a
weekly basis.

Kent Winrich, K9EZ
Menomonee Falls, WI

"Pete KE9OA" wrote in message
...
I was thinking about using 1kHz tuning; this way, the radio would be
more
universal. No need to worry about 9 or 10kHz steps if this is done.
With
my current units, you can connect an untuned 6 foot loop directly to
the
the
50 Ohm antenna input, and the results are pretty dramatic. From my
location
in the Chicago area, I can receive WLW, on 700kHz, with an S8 signal
level.
WJR, on 760kHz, comes in at about an S7, while on 610kHz, I can
receive
Kansas City Missouri, and the Ohil station fighting each other, at
an
S7
signal level. If I want to listen to MW, I don't even bother using
my
AOR7030, Palstar R30, Icom R75, or Yaesu
FRG100...........................none of them is as hot.
Radioman390 wrote in message
...
I would prefer a table radio like a Tivoli or old KLH21


Ceratinly some DRM capability, or a place to add a plug-in card
which
could be
either DRM, C-QUAM stereo, or the digital AM (IBOC or Kahn?).

Depending on how the digital standard goes, at least the RF could
be
constant.

10/9 khz tuning (US vs Euro)

Noise blanker

Before I implement a noise blanker, I want to develop a NB design
that
I
have been slowly working on..............this would be a Quadrature
type.
The advantage to this type is that it would have dynamically
variable
blanking width, with a null of right around 50dB. Still working on
that
one

An input for a loop antenna

An input with DC phantom power for an outdoor active antenna

Maybe an antenna switch to switch between lop and other antenna,
or
two
loops.

Good tone controls

Perhaps something like the old Scott DYNAURAL circuit which shaped
the
flatness
of the audio depending on signal strength, or something like
Worcester's
AM
circuit which made the IF passband narrower as the signal strength
decreased.

Good speaker!

Amen!

Pete

Behold, Pete KE9OA signalled from keyed 4-1000A filament:

That's a definite...........LED backlighting is the way to go. It
sounds like you are in the industry.

Pete

My work is repairing, my hobby is designing. I currently have an all-tube
SW receiver on the go ;-)

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca

Pete,

Anything 'interesting' to report on your High Performance MW Receiver
in the making ?

~ RHF
..
..
= = = "Pete KE9OA"
= = = wrote in message ...
My employer has given me the go ahead to design a new product. If there is
enough interest, I will design a new MW receiver for the market. What would
you be more interested in......................a small table top type, or a
portable?
Performance wise, I am talking about something like that of an AOR7030.
I don't think that I would be inplementing Sync Detection, but a couple of
I.F. bandwidths could be possible. Definitely, double conversion, and
digital readout, with good audio quality.
Would you want any presets? How about target price? Do you want a built in
antenna, or external antenna only? High and low impedance antenna inputs?
How about a built in tunable preselector?
E-mail me directly, and we will see what happens. Any of you who have built
any of me receivers know what I am talking about...............I plan to
take the design to the next couple of steps up in performance.

Pete

Anything 'interesting' to report on your High Performance MW Receiver
in the making ?

Yeah, we designed it, produced it, promoted it and sold a bunch.
Didn't you get one?
Well, it's now obsolote and has been discontinued/we will not produce another.
Maybe you can find it on eBay