Off Topic
#62
Guest
Posts: n/a
Re: Off Topic
KJ.Kate proclaimed:
> So, exactly what IS a Superheterodyne ?????
You beat a locally generated frequency against the incoming radio
frequency signal. The radio is tuned by varying that local frequency.
The result of the beat is a intermediate frequency that is always
exactly the same, making it much easier to design a narrow band RF
amplifier to amplify the signal up to where it is then converted into an
audio signal.
At one point, it was hot stuff.
> So, exactly what IS a Superheterodyne ?????
You beat a locally generated frequency against the incoming radio
frequency signal. The radio is tuned by varying that local frequency.
The result of the beat is a intermediate frequency that is always
exactly the same, making it much easier to design a narrow band RF
amplifier to amplify the signal up to where it is then converted into an
audio signal.
At one point, it was hot stuff.
#63
Guest
Posts: n/a
Re: Off Topic
KJ.Kate proclaimed:
> So, exactly what IS a Superheterodyne ?????
You beat a locally generated frequency against the incoming radio
frequency signal. The radio is tuned by varying that local frequency.
The result of the beat is a intermediate frequency that is always
exactly the same, making it much easier to design a narrow band RF
amplifier to amplify the signal up to where it is then converted into an
audio signal.
At one point, it was hot stuff.
> So, exactly what IS a Superheterodyne ?????
You beat a locally generated frequency against the incoming radio
frequency signal. The radio is tuned by varying that local frequency.
The result of the beat is a intermediate frequency that is always
exactly the same, making it much easier to design a narrow band RF
amplifier to amplify the signal up to where it is then converted into an
audio signal.
At one point, it was hot stuff.
#64
Guest
Posts: n/a
Re: Off Topic
KJ.Kate proclaimed:
> So, exactly what IS a Superheterodyne ?????
You beat a locally generated frequency against the incoming radio
frequency signal. The radio is tuned by varying that local frequency.
The result of the beat is a intermediate frequency that is always
exactly the same, making it much easier to design a narrow band RF
amplifier to amplify the signal up to where it is then converted into an
audio signal.
At one point, it was hot stuff.
> So, exactly what IS a Superheterodyne ?????
You beat a locally generated frequency against the incoming radio
frequency signal. The radio is tuned by varying that local frequency.
The result of the beat is a intermediate frequency that is always
exactly the same, making it much easier to design a narrow band RF
amplifier to amplify the signal up to where it is then converted into an
audio signal.
At one point, it was hot stuff.
#65
Guest
Posts: n/a
Re: Off Topic
KJ.Kate proclaimed:
> "RJ" <re_j99@hotmail.com> wrote in message
> news:1h77sap.hhdkyv1x3hbosN%re_j99@hotmail.com...
> : KJ.Kate <KJ.Kate@WhoseHotMail.com> wrote:
> :
> : > So, exactly what IS a Superheterodyne ?????
> :
> : It's the technical name for the basic AM radio circuit design. In the
> : context, it was probably advertising hype.
>
> That's kind of what I suspected. Sounded a bit George Jetson-ish
Originated in 1918, also known as an Armstrong design after the guy who
first got credit for the idea. Which means of only Bill ------ would
remember the guy...
> "RJ" <re_j99@hotmail.com> wrote in message
> news:1h77sap.hhdkyv1x3hbosN%re_j99@hotmail.com...
> : KJ.Kate <KJ.Kate@WhoseHotMail.com> wrote:
> :
> : > So, exactly what IS a Superheterodyne ?????
> :
> : It's the technical name for the basic AM radio circuit design. In the
> : context, it was probably advertising hype.
>
> That's kind of what I suspected. Sounded a bit George Jetson-ish
Originated in 1918, also known as an Armstrong design after the guy who
first got credit for the idea. Which means of only Bill ------ would
remember the guy...
#66
Guest
Posts: n/a
Re: Off Topic
KJ.Kate proclaimed:
> "RJ" <re_j99@hotmail.com> wrote in message
> news:1h77sap.hhdkyv1x3hbosN%re_j99@hotmail.com...
> : KJ.Kate <KJ.Kate@WhoseHotMail.com> wrote:
> :
> : > So, exactly what IS a Superheterodyne ?????
> :
> : It's the technical name for the basic AM radio circuit design. In the
> : context, it was probably advertising hype.
>
> That's kind of what I suspected. Sounded a bit George Jetson-ish
Originated in 1918, also known as an Armstrong design after the guy who
first got credit for the idea. Which means of only Bill ------ would
remember the guy...
> "RJ" <re_j99@hotmail.com> wrote in message
> news:1h77sap.hhdkyv1x3hbosN%re_j99@hotmail.com...
> : KJ.Kate <KJ.Kate@WhoseHotMail.com> wrote:
> :
> : > So, exactly what IS a Superheterodyne ?????
> :
> : It's the technical name for the basic AM radio circuit design. In the
> : context, it was probably advertising hype.
>
> That's kind of what I suspected. Sounded a bit George Jetson-ish
Originated in 1918, also known as an Armstrong design after the guy who
first got credit for the idea. Which means of only Bill ------ would
remember the guy...
#67
Guest
Posts: n/a
Re: Off Topic
KJ.Kate proclaimed:
> "RJ" <re_j99@hotmail.com> wrote in message
> news:1h77sap.hhdkyv1x3hbosN%re_j99@hotmail.com...
> : KJ.Kate <KJ.Kate@WhoseHotMail.com> wrote:
> :
> : > So, exactly what IS a Superheterodyne ?????
> :
> : It's the technical name for the basic AM radio circuit design. In the
> : context, it was probably advertising hype.
>
> That's kind of what I suspected. Sounded a bit George Jetson-ish
Originated in 1918, also known as an Armstrong design after the guy who
first got credit for the idea. Which means of only Bill ------ would
remember the guy...
> "RJ" <re_j99@hotmail.com> wrote in message
> news:1h77sap.hhdkyv1x3hbosN%re_j99@hotmail.com...
> : KJ.Kate <KJ.Kate@WhoseHotMail.com> wrote:
> :
> : > So, exactly what IS a Superheterodyne ?????
> :
> : It's the technical name for the basic AM radio circuit design. In the
> : context, it was probably advertising hype.
>
> That's kind of what I suspected. Sounded a bit George Jetson-ish
Originated in 1918, also known as an Armstrong design after the guy who
first got credit for the idea. Which means of only Bill ------ would
remember the guy...
#68
Guest
Posts: n/a
Re: Off Topic
On Wed, 07 Dec 2005 19:35:53 -0800, Lon <lon.stowell@comcast.net>
wrote:
>KJ.Kate proclaimed:
>> So, exactly what IS a Superheterodyne ?????
>
>You beat a locally generated frequency against the incoming radio
>frequency signal. The radio is tuned by varying that local frequency.
>The result of the beat is a intermediate frequency that is always
>exactly the same, making it much easier to design a narrow band RF
>amplifier to amplify the signal up to where it is then converted into an
>audio signal.
>
>At one point, it was hot stuff.
It still is. Nearly all radios made today use the superheterodyne
principle. Many change the frequency more than once. Hence, dual-IF,
triple-IF, etc. Crystal sets didn't, but you can bet the radio in
your car does.
----
wrote:
>KJ.Kate proclaimed:
>> So, exactly what IS a Superheterodyne ?????
>
>You beat a locally generated frequency against the incoming radio
>frequency signal. The radio is tuned by varying that local frequency.
>The result of the beat is a intermediate frequency that is always
>exactly the same, making it much easier to design a narrow band RF
>amplifier to amplify the signal up to where it is then converted into an
>audio signal.
>
>At one point, it was hot stuff.
It still is. Nearly all radios made today use the superheterodyne
principle. Many change the frequency more than once. Hence, dual-IF,
triple-IF, etc. Crystal sets didn't, but you can bet the radio in
your car does.
----
#69
Guest
Posts: n/a
Re: Off Topic
On Wed, 07 Dec 2005 19:35:53 -0800, Lon <lon.stowell@comcast.net>
wrote:
>KJ.Kate proclaimed:
>> So, exactly what IS a Superheterodyne ?????
>
>You beat a locally generated frequency against the incoming radio
>frequency signal. The radio is tuned by varying that local frequency.
>The result of the beat is a intermediate frequency that is always
>exactly the same, making it much easier to design a narrow band RF
>amplifier to amplify the signal up to where it is then converted into an
>audio signal.
>
>At one point, it was hot stuff.
It still is. Nearly all radios made today use the superheterodyne
principle. Many change the frequency more than once. Hence, dual-IF,
triple-IF, etc. Crystal sets didn't, but you can bet the radio in
your car does.
----
wrote:
>KJ.Kate proclaimed:
>> So, exactly what IS a Superheterodyne ?????
>
>You beat a locally generated frequency against the incoming radio
>frequency signal. The radio is tuned by varying that local frequency.
>The result of the beat is a intermediate frequency that is always
>exactly the same, making it much easier to design a narrow band RF
>amplifier to amplify the signal up to where it is then converted into an
>audio signal.
>
>At one point, it was hot stuff.
It still is. Nearly all radios made today use the superheterodyne
principle. Many change the frequency more than once. Hence, dual-IF,
triple-IF, etc. Crystal sets didn't, but you can bet the radio in
your car does.
----
#70
Guest
Posts: n/a
Re: Off Topic
On Wed, 07 Dec 2005 19:35:53 -0800, Lon <lon.stowell@comcast.net>
wrote:
>KJ.Kate proclaimed:
>> So, exactly what IS a Superheterodyne ?????
>
>You beat a locally generated frequency against the incoming radio
>frequency signal. The radio is tuned by varying that local frequency.
>The result of the beat is a intermediate frequency that is always
>exactly the same, making it much easier to design a narrow band RF
>amplifier to amplify the signal up to where it is then converted into an
>audio signal.
>
>At one point, it was hot stuff.
It still is. Nearly all radios made today use the superheterodyne
principle. Many change the frequency more than once. Hence, dual-IF,
triple-IF, etc. Crystal sets didn't, but you can bet the radio in
your car does.
----
wrote:
>KJ.Kate proclaimed:
>> So, exactly what IS a Superheterodyne ?????
>
>You beat a locally generated frequency against the incoming radio
>frequency signal. The radio is tuned by varying that local frequency.
>The result of the beat is a intermediate frequency that is always
>exactly the same, making it much easier to design a narrow band RF
>amplifier to amplify the signal up to where it is then converted into an
>audio signal.
>
>At one point, it was hot stuff.
It still is. Nearly all radios made today use the superheterodyne
principle. Many change the frequency more than once. Hence, dual-IF,
triple-IF, etc. Crystal sets didn't, but you can bet the radio in
your car does.
----