Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 (Tek) 9/26/83; site orca.UUCP
Path: utzoo!watmath!clyde!burl!mgnetp!ihnp4!mhuxl!houxm!houxz!vax135!cornell!uw-beaver!tektronix!orca!tomk
From: tomk@orca.UUCP (Tom Kloos)
Newsgroups: net.micro
Subject: Re: Modem review (RIXON)
Message-ID: <992@orca.UUCP>
Date: Wed, 15-Aug-84 01:27:22 EDT
Article-I.D.: orca.992
Posted: Wed Aug 15 01:27:22 1984
Date-Received: Fri, 10-Aug-84 01:24:06 EDT
References: <12163@sri-arpa.UUCP>
Organization: Tektronix, Wilsonville OR
Lines: 21

I've had a RIXON R212A modem for almost a year now and have had no
problems over long distance or other marginal connections after a minor
mod.  The original design evidently has a problem such that the output
level can vary between the spec'd -9dBm (actually -10 plus or minus 1)
and -16dBm.  Needless to say, if it gets stuck at the weak end you'll
have lots of problems.  2 resistors change to fix this bug.  The other
main problem that I had was stored numbers getting trashed sometimes
after power cycling.  A ROM change is necessary to cure this (to
version 4.2 or greater).

The folks at Rixon were VERY helpful in solving the problems after I
made it clear that I knew what I was doing.  I believe the changes were
made last Fall or Winter, but from previous experience with
distributers (both big and small), they can ship lots of junk (modems,
IC's, batteries, etc.) that they may have received a long time ago.

-Tom Kloos, Tektronix, Wilsonville, Oregon
				Ignore paths in header.  Use this:
uucp:   ..{ucbvax,decvax,uw-beaver,hplabs,allegra}!tektronix!orca!tomk
ARPA:	tekecs!tomk.tek@rand-relay