[NJARC] Hedy Lamarr (again)

[Bill Zukowski]

I thought the same thing when I saw the presentation at this year's AWA 
convention in Rochester.  It thought is sounded more like trunking.

Bill

On 11/9/2015 5:13 PM, David Sica wrote:
> Just remember
> Reply = Poster
> Reply All = Everyone
>
> _________________________________________________________
>
>
> Jim,
>
> You are likely (surely?) correct.  That's one thing I like about this 
> group, there's always a real engineer around to correct what we 
> shade-tree engineers think we know!
>
> -- Dave
>
>
> New Jersey Antique Radio Club
>
> On Mon, Nov 9, 2015 at 3:42 PM, <antqradio at sbcglobal.net 
> <mailto:antqradio at sbcglobal.net>> wrote:
>
>     Just remember
>     Reply = Poster
>     Reply All = Everyone
>
>     _________________________________________________________
>
>     I could be wrong on this but I think "frequency hopping" is a very
>     different animal then "spread spectrum."
>
>     The former is used in cellphones with a constant "bandwidth" on a
>     step changing carrier frequency assigned by the local cellphone
>     tower control computer and the latter was Lamarr's contribution,
>     essentially a very wide bandwidth and hopefully undetectable
>     signal.  Perhaps some wireless telephones used in the home use
>     spread spectrum but not cellphones, at least not to my knowledge.
>     Jim
>
>     ------------------------------------------------------------------------
>     *From:* David Sica <dave.sica at njarc.org <mailto:dave.sica at njarc.org>>
>     *To:* "njarc at mailman.qth.net <mailto:njarc at mailman.qth.net>"
>     <njarc at mailman.qth.net <mailto:njarc at mailman.qth.net>>
>     *Sent:* Monday, November 9, 2015 2:01 PM
>     *Subject:* [NJARC] Hedy Lamarr (again)
>
>     Today's Google Doodle is in honor of Hedy Lamarr.    Known in her
>     time as "the most beautiful girl in the world" she was also an
>     inventor and held the patent for, among other things, the
>     spread-spectrum technology underlying our present-day cell phone
>     system.
>
>     http://www.google.com/doodles/hedy-lamarrs-101st-birthday
>
>
>
>
>     Just remember
>     Reply = Poster
>     Reply All = Everyone
>
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