Two-Way Radio Communications and Electronics Specialists



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Radio Programming.....

CAUTION: Always UPLOAD (read) the radio first:

.UPLOAD (read) the radio and SAVE a backup copy of
   your original (unedited) file to your hard drive.
2.EDIT the file. Add, delete channels, change CTCSS/DCS
   codes, alpha tags, etc.
3.SAVE a backup copy of the edited file to your hard drive.
4.DOWNLOAD (send) edited data file to radio.

Note: Never start programming from the default file that loads when the software starts. Editing the existing file that's contained onboard the radio's micro controller is required because it contains non-user technical data needed for proper operation.

DOS Programs / Windows Programs

DOS   Windows

You must have the following if you intend to purchase DOS programming software, cables, etc. :

  • An understanding of Microsoft DOS, including:
    • DOS Commands.
    • How to install DOS programs.
    • How to configure COM & LPT Ports.
    • How to "Boot Up" in DOS mode.
    • How to use and read floppy disks.
    • General knowledge of  DOS operating system.
  • A computer with DOS Ver5.0 to Ver6.22 installed:
    • The higher the version the better - Ver6.22 is best.
    • Windows ME, NT, 2000 and XP - WILL NOT WORK! 
    • Non-Microsoft versions of DOS - WILL NOT WORK!
    • Windows 95/98 DOS - USUALLY WILL NOT WORK!
    • Linux, Unix, etc., etc. - WILL NOT WORK!
  • An OLD, SLOW computer:
    • Boot computer and run program in DOS.
    • Speed - 16 to 100 MHz - MAX . 
    • RAM - 8MB or more.
    • Mouse and Printer make using Software easier.
    • Compaq Computers usually don't work because of COM PORT design.
    • We get reports that some new, fast computers work but most do not.
  • A Computer with Windows 95, 98, ME, NT, 2000, ME or XP installed...Yikes!
    • Some Program Disks come as Windows compressed files or "Zip" files. They must be un-Zipped or un-Compressed in Windows then installed and run on an old DOS computer. I know this sounds crazy but it's true!
  • An understanding of FCC rules and regulations:
    • Programming channels you are not authorized or properly licensed to transmit on is illegal.
    • Programming receive only channels is usually always OK. Check your State and Local Government regulations.
    • Multec Communications / is not liable for the improper or illegal use of any product or service which it has provided.
    • Multec Communications / reserves the right to require Proof of Licensing or Written Authorization before programming any transmit frequencies in 2-Way type radios or selling Programming Software.
  • Cables:
    • Certain programming cables come with 25 pin female serial connectors. These look exactly like your typical  25 pin "D" printer connector. Most modern computers use a 9 pin serial connector for com ports 1 & 2. These cables REQUIRE a 25 pin male to 9 pin female adapter to mate with your typical serial port. These are available from any computer store for under five dollars and ARE NOT INCLUDED with the programming cable.
  • User Tips:
    • Always UPLOAD (read) the radio first, edit the file, save a backup copy to your hard drive then and only then DOWNLOAD (send) data to radio. Never start programming from the default file that loads when the program starts. Editing the existing file that's contained onboard the radio's micro controller is required because it contains non-user technical data needed for proper operation.
  • Advanced User Tips:
    • It has been reported that some faster computers may work by changing the settings in the Windows Device Manager. (Always write down your original settings so your can undo any changes)
    • Reduced COM port "bits per second" rate to 1200
    • Advanced Settings: reduce receive and transmit buffers to lowest setting. (may help to try disabling FIFO buffers)


If you don't understand the above or are unfamiliar with any of the requirements I recommend you do not purchase the programming software and cable. If you have a local Computer Shop they sometimes will sell you a suitable computer and set up your software for a reasonable fee. Print this page and bring it in to them first to see if they can help.  Microsoft DOS is obsolete but radio programming software designers still write programs using it. We will program the first 10 channels free in any radio purchased new from us. Additional channels will require a labor charge since a 200 channel radio can take several hours to program and check. 


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Copyright 2000-2018  Multec Communications / - All rights reserved. Do not duplicate without the express written consent of Multec Communications.
Shipping & Mail only - Note: returns require a RA# - see RETURNS  before shipping
Address...                      Note: warranty repairs only - see REPAIRS  before shipping

Multec Communications
319 Centre Ave.  #166
Rockland, MA  U.S.A.   02370-2613
781 294-4992 main
781 527-5004 fax (include return email w/fax)

Main 781 294-4992
- calling hours 2-5 EST  Monday-Friday for questions and tech support only...."Out of Area", "Restricted" and "Private Caller" calls may be blocked to avoid phone spam. Note: The main line is often very busy and voice mail is not available. Please place orders online using our secure e-commerce system. Save time...order online!

If you have questions about ordering please see  ordering information page  first. Phone orders slow processing time, increase inaccuracies and are not recommended.

Email questions or comments at - Email

Note: Not responsible for typographical, photographic or pricing errors.
         All pricing and specifications subject to change without notice.