Re: TI-H: REAL radio-link

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Re: TI-H: REAL radio-link


What is the part number?  I searched, and could not find it.
]
-----Original Message-----
From: Grant Stockly <gussie@alaska.net>
To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
Date: Wednesday, February 25, 1998 7:14 PM
Subject: Re: TI-H: REAL radio-link


>
>Look in the catalog section.
>
>>where exactly on their web site would I find this chip?
>>
>>-----Original Message-----
>>From: Grant Stockly <gussie@alaska.net>
>>To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
>>Date: Monday, February 23, 1998 6:53 PM
>>Subject: Re: TI-H: REAL radio-link
>>
>>
>>>
>>>making a radio link wouldn't be hard.  First get a chip from
>>>www.national.com.  Look arround and find the chips that are made to
>>>transfer data...  There is a chipset that uses 2 wire SPI serial...
>>>
>>>If you can't do that then get 2 freqw and a regular chip.  Then get some
da
>>>ad converters.
>>>
>>>>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!
>>>>
>>>>New idea: Could a crystal generate a frequency high enough that the data
>>>>can be multiplexed fast enough to avoid missing data???
>>>>
>>>>What about 4 separate frequencies SendTip, SendMid, RecTip, RecMid. You
>>>>could have a switch to select whether your calc is 1 or 2. It is a
>>>>little less "automatic", but by having the calcs set differently, you
>>>>could send the data on two frequencies and recieve it on four
>>>>frequencies. Maybe a little plug could be added, or dip switches used to
>>>>select or switch crystals! You would carry two of the same crystal, and
>>>>let the person you want to trancieve data with borrow one, or have
>>>>several preset frequencies inside set by a switch. It would be VERY
>>>>dificult to manualy tune it with a knob or something like that.
>>>>
>>>>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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