Help with IBM PC-Radio 9075

A friend of mine has given me an IBM PC-Radio model 9075 (see

The problem is that I can’t get it to work!

Theoretically, it needs an antenna to work via radio, but I have no idea how to get one (the PC’s last revision is September 1992).

So, in absence of an antenna, I’ve tried to link it to my telephone line via a PSTN cable.

Failure in this time too :frowning:

It tells me “04 - NODIALTONE”

How can I solve this problem ?? :frowning:

Helpppppp :wink:

I don’t think I can offer much help, but isn’t this a DOS device? When you write “can’t get it to work” do you mean it doesn’t boot or the radio transmission doesn’t work? I think the radio only worked with one network, a company called Ardis. Have you looked to see if they are still in business? Good luck, it could turn out to be a fun project.

The radio device has been approved in almost all Europe.

The problem is [I]where to locate an antenna[/I].

Also the PSTN cable doesn’t work, it tells me 04 - NODIALTONE when calling and 01 - TIMEOUT if answering.


The wireless antenna is for the (now closed?) ARDIS radio network in US which was a joint venture between IBM and Motorola.

Sorry I can’t be of more help. I see that you are in Italy, my suggestion is to find a local ham radio club if any exist near you and/or if you have anything similar to RadioShack (an electronics parts store here is the US) to see if they can help at all. I have no idea what frequency the radio transmits at, but that shouldn’t make a difference in the antenna.

Io sonno stato a Firenza per due mezzi dieci anni fa.