Re: TI-H: E and Radio Link

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: E and Radio Link
From: "ryan pogge" <ryanpogge@hotmail.com>
Date: Thu, 14 May 1998 07:07:38 PDT
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: ti-hardware@lists.ticalc.org


don't worry just keep it on the D.L. 
heh

>Sounds like a good idea, but wouldn't that cause some legal problems? 
You'd be
>stepping way into the cellular phone band. Not the old analog phones, 
but the new
>digital PCS phones. You might want to do some checking on that.
>
>Grant Stockly wrote:
>
>> I'm going to use a different plan for the radio link/
>>
>> I've been waiting for a long *long* time for his schematics and 
havn't
>> gotten them/  So I'm going to use the same technology used in 
wireless
>> ethernet/
>>
>> The radio links will operate at 1.9GHz and use about 900mW full speed 
(110k
>> per sec)/  It also depends on the distance/  The radio link will amp 
up the
>> signal to a max of 26db if it needs too/  I don't know how far it 
will
>> transmit/  Your regular cordless phone operates at 900MHz (this is
>> 1900MHz)/
>>
>> Anyway, this scheme will work better/  I thinking I can get about 
57600
>> perfectly and maybe 110 if I hack it a little/
>>
>> The main Transciever chip cost $9 and the amps cost $4.  The AVR cost
>> $4.50/  Then you need a few other misc parts/  Too bad its a 44, 18, 
20 pin
>> surface mount deal.  :)  Unless you guys all have rework stations, 
we'll
>> have to find a fab company to make them/  These things should get the 
range
>> of a cel phone within a single cell/
>>
>> I ordered a set of 5 of the chips last night and they'll be here 
sometime soon/
>>
>> As for the E, I think it would be cool to put a transciever in your 
locker
>> so you would only have a box the size of a cel phone, but you could 
have
>> toons of eeprom or other storage/
>
>
>
>


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