Subject: IC2410 wideband RX



        I've accomplished the

    wideband RX mods (cutting D8,D9, and D10). Here's how to open up the

    VHF TX:

    



        1. Remove the 12 black screws that hold the top and bottom covers.

        2. Remove the covers and carefully unplug the speaker from the circuit

           board.

        3. Remove the 4 screws that hold the head/faceplate to the chassis.

        4. With the radio right side up, carefully separate the face from the

           chassis about 3/8 of an inch. Be careful of the ribbon cables!

        5. Tip the face down so that you may view the backside of the head

           unit.

        6. Locate the three diodes along the bottom center that you cut for

           wideband receive. (D8, D9, D10) Look towards the top and slightly

           to the left of these diodes. You should see two, rectangular

           foil runs that don't have any solder on them. They should be gold

           colored. This is called a "land point".

        7. BEING VERY CAREFUL OF THE SURFACE-MOUNT DEVICES THAT ARE VERY CLOSE

           TO THE "LAND POINT" AND USING A SOLDERING IRON WITH A SMALL TIP,

           PLACE A SMALL DROP OF SOLDER ACROSS THE LAND POINT. (and I mean a

           small drop. just enough to connect the two foil tabs) Make sure you

           are very careful not to accidently touch a surface-mount device

           with your iron. They lift off very easily and can be a real bear to

           put back into place. The smaller the iron tip, the better!

        8. Reassemble the radio in the reverse order that you disassembled it.

           Remember to reconnect the speaker!



        When you reapply power you should be able to transmit 136-174 MHz. This

        comes in handy if you are a MARS operator.REMEMBER:Transmitting outside

        of the HAM bands is ILLEGAL unless it is an EMERGENCY! i.e.a matter of

        life and death.



           Any questions can be directed to N6YUJ


                                                        73,

                                                        Pat N6YUJ