Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!sdd.hp.com!hplabs!hp-pcd!hpcvra.cv.hp.com!rnews!hpcvbbs!akcs.jwtrav
From: akcs.jwtrav@hpcvbbs.UUCP (John Wettroth)
Newsgroups: comp.sys.handhelds
Subject: Re: ADCM-48: Attn: J. Wettroth
Keywords: acdm-48, hp48, j. wettroth
Message-ID: <2836056d:3004.1comp.sys.handhelds;1@hpcvbbs.UUCP>
Date: 19 May 91 05:40:06 GMT
References: <282323ca:3004comp.sys.handhelds@hpcvbbs.UUCP>
Lines: 11

thanks again scotty. i have played with the radio shack and other tv
remote control receive modules.  unfortunately the hp-48 calculator to
calculator protocol has no high frequency carrier.  the printer link
includes a 32768 hz carrier and is suitable for use with a demodulator.
the designer of the calculator to calculator link wanted something quick
and dirty which means no carrier and little checking. the printer
interface protocol has about 50% overhead in parity bits and is rather
slow. i considered it but opted for the quick and dirty route. thanks for
the command ideas, i'm going to study them and possilbly implement some.
if i get something together thats solid, i'll send you one for
evaluation. thanks. hope to see you at corvalhalla in august!