Re: TI-H: REAL radio-link

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: REAL radio-link
From: jdaomteys@juno.com (James Doty)
Date: Sun, 28 Dec 1997 18:24:03 -0500
References: <01bd445d$59babee0$a0584382@tronix>
Reply-To: ti-hardware@lists.ticalc.org


Wouldn't the FAA love it if we made Calculator  VOR's.  You'd have to
check to make sure that it is on a non standard frequency if you used
this technique. 

--JdAoMtEyS
-----------------------------
"Oh my god, they killed Kenny!"

On Sat, 28 Feb 1998 16:27:16 +0100 "Stein Sem-Jacobsen"
<ssemjaco@online.no> writes:
>
>In aviation naviation there is a system called VOR (VHF 
>omnidirectional
>range). I uses a AM signal and a FM signal at the same carrier 
>frequency to
>determine where it is.
>
>It relatively low frequencies that are used. A 30Hz AM is modulated on 
>top
>of the 30 Hz FM at a carrier frequency of 9960Hz +/- 480Hz to get the 
>FM
>variation
>
>
>-----Original Message-----
>From: Richard Piotter <richfiles1@hotmail.com>
>To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
>Date: 24. februar 1998 23:43
>Subject: Re: TI-H: REAL radio-link
>
>
>>
>>>> IS it possible to have one line modulate the amplitude and the 
>other
>>>> line modulate frequency. Then have a frequence counter and a level
>>meter
>>>> test the frequency and amplitude. never mind, I just realized why
>>that
>>>> would not work!
>>>
>>>
>>>Wait a minute, why wouldn't that work?
>>
>>cause if the frequency and the amplitude modulate, then where is your
>>carrier wave? It would look like plain old static interference, and I
>>have no clue how you would integrate an AM and an FM reciever and
>>transmitter together to filter noise from noise! I'd call that nearly
>>impossible!
>>
>>Richard Piotter
>>richfiles1@hotmail.com
>>
>>The Richfiles TI Page
>>http://www.geocities.com/SiliconValley/Lakes/5081/Richfiles.html
>>
>>
>>______________________________________________________
>>Get Your Private, Free Email at http://www.hotmail.com
>>
>
>

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