Cellular Monitor                              

Before the software can be used a Motorola 4800X must be obtained and
modified as shown below, the modification is simple. First remove the
four screws at either end of the phone and slide the side panels of
the phone. Unscrew the screws that hold in the microprocessor board
and remove it, turn it over and compare it with the diagram below,
get a piece of cable with at least seven cores and connect them to
the pads A to G as shown below.

                              25 way D connector
  +--------------------------------------------------------------------+
  |                         o o o o o o o A o o o o                    |
  |                        o o o o o o o o o o o o o                   |
  |                                                                    |
  |                                                                    |
  |                                                      +----+        |
  |                                                      |    |        |
  |                                                      +----+        |
  |                                                                    |
  |            o o                                            G        |
  |            o o                                   (G is connected   |
  |            o o                                    to the boards    |
  |            o o                                    ground plane,    |
  |            o o                                    here seems to    |
  |            o B                                    be a good place) |
  |            C D                                                     |
  |            E F                                                     |
  |            o o                                                     |
  |            o o                                                     |
  |            o o                                                     |
  |            o o                                                     |
  |            o o                                                     |
  |            o o                                                     |
  |                                                                    |
  |                                                                    |
  |         +----+                                                     |
  |         |    |                                                     |
  |         +----+                                                     |
  |                                                                    |
  |                                                                    |
  |                                                                    |
  |                                                                    |
  |                                                                    |
  |                                                                    |
  |                                                                    |
 ~~~                                                                  ~~~  

 ~~~                                                                  ~~~   
  |                                                                    |
  |                                                                    |
  +--------------------------------------------------------------------+

At the other end of the cable connect a 25 way D connector to suit 
your computers printer port, connect it as follows:

Something about pin #3 on fone for Audio IN from the 
Discriminator/demodulator on the pro-43


        A  -  Pin 6
        B  -  Pin 13
        C  -  Pin 15
        D  -  Pin 12
        E  -  Pin 10
        F  -  Pin 1
        G  -  GND Pins 18 to 25

Now put the phone back together, power it up, boot up your PC, run
the software and connect your 4800 to the parallel printer port.
Hit ENTER and the rest is up to you.

Good Luck