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From: mikef@hpspdla.HP.COM (Mike Fischer 5M)
Newsgroups: comp.dcom.modems
Subject: Re: VIC20 MODEM
Message-ID: <4270001@hpspdla.HP.COM>
Date: Tue, 29-Sep-87 01:03:51 EDT
Article-I.D.: hpspdla.4270001
Posted: Tue Sep 29 01:03:51 1987
Date-Received: Sun, 4-Oct-87 20:46:02 EDT
References: <[E.ISI.EDU]18-Sep-87.13:24:43.SAC.55SRW-SE>
Organization: HP Stanford Park - Palo Alto, Calif.
Lines: 15


The original (300 bps)modem for the VIC-20 was the Commodore Model 1600
VicModem.  These and clones were going for ~$20 at swap meets, the last
time I saw one, which was months ago.  A more general way would be to buy
an RS-232 interface for the User Port, same as for C-64 and 128, <$50 and
a currently stocked item at most stores selling Commodore (I've even seen
them at K-Mart, tho not recently), then use a standard external modem.

You'll need terminal software...good luck; however a completely dumb
terminal emulator can be written in about 20 lines of VIC-20 BASIC, if
you can find either a Programmer's Reference Manual or a general book on
the VIC-20 with a telecommunications chapter.  A really old Commodore
user's group library should have some better public domain terminal
emulators.  BTW the good-ole' VIC can easily support 1200 bps with a 
machine-language program.  Good Luck!