Important note:  The following information allows the user to program receive and transmit frequencies into the radio.   The user of this information assumes all consequences of transmitting on frequencies not allocated to them for their use, even if by accident.  Some radios may need proper realignment in order to perform on the programmed frequencies or in order to operate at best performance. A qualified technician using proper test equipment should perform any required realignment.

Frequency Information:

The frequency information to be programmed into the radio must be obtained by the user.  The frequencies given in the examples listed in the Programming instructions are not allocated frequencies.  

MPU32 Programming Information

Programming Preparations:

Items required:

1. One small tip Philips head screwdriver.
2. One fully charged battery.

Getting the radio into the programming mode:

1. Disconnect the battery from the radio. 
2. Using the Philips head screwdriver remove the three screws located on the back case of the radio.
3. Turn the radio upside down so that you can observe the three nickel plated screws.  Remove only the one closest to the battery latch button.
4. Carefully open the radio on the PTT (Transmit) button side, hinging it on right or opposite side as there are two flex circuits on the right side that can be torn or damaged if you are not careful.
5. Open the radio enough to locate the programming switch, which is mounted on the channel selector switch at the top front half of the radio. It is a mini slide switch.
6. Flip the switch in the opposite direction
7. Carefully reassemble the radio.
8. Install one screw the rear case and tighten it snuggly, but do not over tighten it.
9. Turn the radio on. 
10. A small “P” should appear in the display indicating that the radio is now in the programming mode.

You will need to make a list of frequencies has been written in the sequence as listed below:

The tone chart below is a list of available tones that the radio is capable of receiving and transmitting.  Use the two digit tone code to indicate the tone frequency that is needed for the channel:   Ex. – Desired tone frequency = 127.3Hz, use tone code 19.