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Old September 10th 03, 06:17 AM
Pete KE9OA
 
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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


  #2   Report Post  
Old September 10th 03, 03:27 PM
Kent
 
Posts: n/a
Default

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
news
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




  #3   Report Post  
Old September 11th 03, 08:32 AM
Pete KE9OA
 
Posts: n/a
Default

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
news
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






  #4   Report Post  
Old September 11th 03, 09:16 PM
Kent
 
Posts: n/a
Default

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
news
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








  #5   Report Post  
Old September 9th 03, 06:17 PM
Radioman390
 
Posts: n/a
Default

Oops, I forgot

DRM readout to ID stations, songs, etc


  #6   Report Post  
Old September 9th 03, 11:35 PM
Radioman390
 
Posts: n/a
Default

DRM readout to ID stations, songs, etc

I meant RDS, and while we're at it, why not have a little memory button which
would remember a song title when you press it, for later review?
  #7   Report Post  
Old September 10th 03, 06:25 AM
Pete KE9OA
 
Posts: n/a
Default

Let me talk to my genie about that one!

Pete

Radioman390 wrote in message
...
DRM readout to ID stations, songs, etc


I meant RDS, and while we're at it, why not have a little memory button

which
would remember a song title when you press it, for later review?



  #8   Report Post  
Old September 9th 03, 06:31 PM
Clifton T. Sharp Jr.
 
Posts: n/a
Default

[posted and mailed.]

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?


You know UL rating is easier when you use a wall wart. Go for a portable
even if it's a little on the large side.

Performance wise, I am talking about something like that of an AOR7030.
I don't think that I would be inplementing Sync Detection,


Aw, Pete, go that extra mile.

but a couple of
I.F. bandwidths could be possible.


Yes, please.

Definitely, double conversion, and
digital readout, with good audio quality.
Would you want any presets?


With digital readout, presets shouldn't be that expensive. The more
electronically-controlled functions, the easier to do presets, thus
adding bells and whistles. Extra points for IF bandwidth stored with
station, supercool for bass/treble stored. Including a clock? Wanna
be spiffy? Preset for timezone displayed. Easy, cheap, and marketing
will love having a feature no one else has.

How about target price?


A really hot MW receiver isn't a mass-market product. This ain't gonna be
cheap. Don't make it ridiculous. $150 might be a nice target for a really
hot unit. $39 if it comes pre-misaligned like other super radios.

Do you want a built in
antenna, or external antenna only?


A cheapo loopstick built in for general use, external input for the
serious DXer.

High and low impedance antenna inputs?


I know you won't forget to protect 'em against static etc.

How about a built in tunable preselector?


Probably worth it. RF gain control, too.

A switch and a cap gives you AGC slow/fast control, hint hint. And show
us how *real* AGC works, not that phony auto-stifle lots of designers
come up with.

Selectable 1 KHz tuning resolution. Don't forget 9 KHz if Europe might
be interested.

One alarm timer, one or two "on" timers, and a "sleep" timer that can be
set without having to turn the damn radio off and back on.

Audio line out.

DreamFeature [tm]: two low-Z antenna inputs, one with a unity-gain variable
phase shift 0-90+ degrees. You're Superman if you can do that one cheaply.
Doesn't have to be precisely calibrated, only the range (not the dial
position) is important; only us tweakers will use it.

--
"Here, Outlook Express, run this program." "Okay, stranger."
  #9   Report Post  
Old September 9th 03, 07:23 PM
Kent
 
Posts: n/a
Default

If you do a hot MW receiver for about $150, I will place the first order!

"Clifton T. Sharp Jr." wrote in message
...
[posted and mailed.]

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?


You know UL rating is easier when you use a wall wart. Go for a portable
even if it's a little on the large side.

Performance wise, I am talking about something like that of an AOR7030.
I don't think that I would be inplementing Sync Detection,


Aw, Pete, go that extra mile.

but a couple of
I.F. bandwidths could be possible.


Yes, please.

Definitely, double conversion, and
digital readout, with good audio quality.
Would you want any presets?


With digital readout, presets shouldn't be that expensive. The more
electronically-controlled functions, the easier to do presets, thus
adding bells and whistles. Extra points for IF bandwidth stored with
station, supercool for bass/treble stored. Including a clock? Wanna
be spiffy? Preset for timezone displayed. Easy, cheap, and marketing
will love having a feature no one else has.

How about target price?


A really hot MW receiver isn't a mass-market product. This ain't gonna be
cheap. Don't make it ridiculous. $150 might be a nice target for a really
hot unit. $39 if it comes pre-misaligned like other super radios.

Do you want a built in
antenna, or external antenna only?


A cheapo loopstick built in for general use, external input for the
serious DXer.

High and low impedance antenna inputs?


I know you won't forget to protect 'em against static etc.

How about a built in tunable preselector?


Probably worth it. RF gain control, too.

A switch and a cap gives you AGC slow/fast control, hint hint. And show
us how *real* AGC works, not that phony auto-stifle lots of designers
come up with.

Selectable 1 KHz tuning resolution. Don't forget 9 KHz if Europe might
be interested.

One alarm timer, one or two "on" timers, and a "sleep" timer that can be
set without having to turn the damn radio off and back on.

Audio line out.

DreamFeature [tm]: two low-Z antenna inputs, one with a unity-gain

variable
phase shift 0-90+ degrees. You're Superman if you can do that one cheaply.
Doesn't have to be precisely calibrated, only the range (not the dial
position) is important; only us tweakers will use it.

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



  #10   Report Post  
Old September 9th 03, 07:41 PM
Dale Parfitt
 
Posts: n/a
Default



Kent wrote:

If you do a hot MW receiver for about $150, I will place the first order!


and you had to ask, Pete! Just build it- they will come.

73,
Dale W4OP



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