Tim Shoppa wrote:
A terminology question I suppose about the derivation of the term
"Superheterodyne" more than anything else:

Does the "Super" actually mean anything? Is there a Subheterodyne?

Traditionally superhets mix a higher radio frequency down to a lower
IF frequency, but certainly in the past few decades radios with IF's
above the RF frequency have become very common in broadband
applications, and those are still called superhets, not subhets :-).

Google turns up a couple hits on subheterodyne but other than one that
might mean "IF higher in frequency than RF" I don't recognize what
they mean..
======================
Many of not most modern HF receivers have a first IF in the 45-75 MHz range.

==================================================

I suspect that "Super" was more a marketing term than anything
else :-).

Tim N3QE

frank GM0CSZ / KN6WH

Tim Shoppa wrote:
A terminology question I suppose about the derivation of the term
"Superheterodyne" more than anything else:

Does the "Super" actually mean anything? Is there a Subheterodyne?

Traditionally superhets mix a higher radio frequency down to a lower
IF frequency, but certainly in the past few decades radios with IF's
above the RF frequency have become very common in broadband
applications, and those are still called superhets, not subhets :-).

Google turns up a couple hits on subheterodyne but other than one that
might mean "IF higher in frequency than RF" I don't recognize what
they mean..

I suspect that "Super" was more a marketing term than anything
else :-).


If you want to file a new patent for old stuff you could try
subheterodyne and it just might sail through :-)

Oh wait, call it hyperheterodyne, has more glitz. Just like the
supermercados in Spain.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.

On Mon, 20 Apr 2009 12:36:12 -0700, Joerg
wrote:

Tim Shoppa wrote:
A terminology question I suppose about the derivation of the term
"Superheterodyne" more than anything else:

Does the "Super" actually mean anything? Is there a Subheterodyne?

Traditionally superhets mix a higher radio frequency down to a lower
IF frequency, but certainly in the past few decades radios with IF's
above the RF frequency have become very common in broadband
applications, and those are still called superhets, not subhets :-).

Google turns up a couple hits on subheterodyne but other than one that
might mean "IF higher in frequency than RF" I don't recognize what
they mean..

I suspect that "Super" was more a marketing term than anything
else :-).


If you want to file a new patent for old stuff you could try
subheterodyne and it just might sail through :-)

Oh wait, call it hyperheterodyne, has more glitz. Just like the
supermercados in Spain.

I think we're going to be doing a superhet receiver soon. Maybe we'll
do it in an FPGA!

John

John Larkin wrote:
On Mon, 20 Apr 2009 12:36:12 -0700, Joerg
wrote:

Tim Shoppa wrote:
A terminology question I suppose about the derivation of the term
"Superheterodyne" more than anything else:

Does the "Super" actually mean anything? Is there a Subheterodyne?

Traditionally superhets mix a higher radio frequency down to a lower
IF frequency, but certainly in the past few decades radios with IF's
above the RF frequency have become very common in broadband
applications, and those are still called superhets, not subhets :-).

Google turns up a couple hits on subheterodyne but other than one that
might mean "IF higher in frequency than RF" I don't recognize what
they mean..

I suspect that "Super" was more a marketing term than anything
else :-).

If you want to file a new patent for old stuff you could try
subheterodyne and it just might sail through :-)

Oh wait, call it hyperheterodyne, has more glitz. Just like the
supermercados in Spain.


I meant hypermercados :-)


I think we're going to be doing a superhet receiver soon. Maybe we'll
do it in an FPGA!


How'd you do the preamp in there?

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.

On Mon, 20 Apr 2009 12:49:51 -0700, Joerg
wrote:

John Larkin wrote:
On Mon, 20 Apr 2009 12:36:12 -0700, Joerg
wrote:

Tim Shoppa wrote:
A terminology question I suppose about the derivation of the term
"Superheterodyne" more than anything else:

Does the "Super" actually mean anything? Is there a Subheterodyne?

Traditionally superhets mix a higher radio frequency down to a lower
IF frequency, but certainly in the past few decades radios with IF's
above the RF frequency have become very common in broadband
applications, and those are still called superhets, not subhets :-).

Google turns up a couple hits on subheterodyne but other than one that
might mean "IF higher in frequency than RF" I don't recognize what
they mean..

I suspect that "Super" was more a marketing term than anything
else :-).

If you want to file a new patent for old stuff you could try
subheterodyne and it just might sail through :-)

Oh wait, call it hyperheterodyne, has more glitz. Just like the
supermercados in Spain.


I meant hypermercados :-)

So a convenience store would be a "hypomercado"?

Spehro Pefhany wrote:
On Mon, 20 Apr 2009 12:49:51 -0700, Joerg
wrote:

John Larkin wrote:
On Mon, 20 Apr 2009 12:36:12 -0700, Joerg
wrote:

Tim Shoppa wrote:
A terminology question I suppose about the derivation of the term
"Superheterodyne" more than anything else:

Does the "Super" actually mean anything? Is there a Subheterodyne?

Traditionally superhets mix a higher radio frequency down to a lower
IF frequency, but certainly in the past few decades radios with IF's
above the RF frequency have become very common in broadband
applications, and those are still called superhets, not subhets :-).

Google turns up a couple hits on subheterodyne but other than one that
might mean "IF higher in frequency than RF" I don't recognize what
they mean..

I suspect that "Super" was more a marketing term than anything
else :-).

If you want to file a new patent for old stuff you could try
subheterodyne and it just might sail through :-)

Oh wait, call it hyperheterodyne, has more glitz. Just like the
supermercados in Spain.
I meant hypermercados :-)

So a convenience store would be a "hypomercado"?


:-)

Those actually called themselves supermercado a lot, probably the reason
why the real ones of the size of a Safeway had to notch it up one category.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.

Joerg wrote:

John Larkin wrote:

On Mon, 20 Apr 2009 12:36:12 -0700, Joerg
wrote:

Tim Shoppa wrote:

A terminology question I suppose about the derivation of the term
"Superheterodyne" more than anything else:

Does the "Super" actually mean anything? Is there a Subheterodyne?

Traditionally superhets mix a higher radio frequency down to a lower
IF frequency, but certainly in the past few decades radios with IF's
above the RF frequency have become very common in broadband
applications, and those are still called superhets, not subhets :-).

Google turns up a couple hits on subheterodyne but other than one that
might mean "IF higher in frequency than RF" I don't recognize what
they mean..

I suspect that "Super" was more a marketing term than anything
else :-).

If you want to file a new patent for old stuff you could try
subheterodyne and it just might sail through :-)

Oh wait, call it hyperheterodyne, has more glitz. Just like the
supermercados in Spain.



I meant hypermercados :-)


I think we're going to be doing a superhet receiver soon. Maybe we'll
do it in an FPGA!


How'd you do the preamp in there?

Bit shift?

"Robert Baer" wrote in message net...
Joerg wrote:

John Larkin wrote:

On Mon, 20 Apr 2009 12:36:12 -0700, Joerg
wrote:

Tim Shoppa wrote:

A terminology question I suppose about the derivation of the term
"Superheterodyne" more than anything else:

Does the "Super" actually mean anything? Is there a Subheterodyne?

Traditionally superhets mix a higher radio frequency down to a lower
IF frequency, but certainly in the past few decades radios with IF's
above the RF frequency have become very common in broadband
applications, and those are still called superhets, not subhets :-).

Google turns up a couple hits on subheterodyne but other than one that
might mean "IF higher in frequency than RF" I don't recognize what
they mean..

I suspect that "Super" was more a marketing term than anything
else :-).

If you want to file a new patent for old stuff you could try subheterodyne and it just might sail through :-)

Oh wait, call it hyperheterodyne, has more glitz. Just like the supermercados in Spain.



I meant hypermercados :-)


I think we're going to be doing a superhet receiver soon. Maybe we'll
do it in an FPGA!


How'd you do the preamp in there?

Bit shift?

Yes, but 2x zero is still zero...

M

"Tim Shoppa"

A terminology question I suppose about the derivation of the term
"Superheterodyne" more than anything else:

Does the "Super" actually mean anything?


** Refers to the term " supersonic frequency " - the general name for any
frequency between the upper limit of the audible range ( 20kHz ) and the
lower limit of common radio transmission frequencies or "long waves" at
about 150kHz.

Is there a Subheterodyne?

** No.

Traditionally superhets mix a higher radio frequency down to a lower
IF frequency, but certainly in the past few decades radios with IF's
above the RF frequency have become very common in broadband
applications, and those are still called superhets, not subhets :-).


** The name now refers to any receiver that involves a frequency changer
stage prior to detection.

If you want to know the meaning of any term, you have to study how PEOPLE
used it - both in the past and the present.

Only complete fools and radio hams study the words themselves in isolation
and try to de-construct them.


...... Phil

P
Is there a Subheterodyne?

** No.

But if you wind your tickler coil bass-ackwards you end up
with a degenerative receiver circuit.