• To anyone looking to acquire commercial radio programming software:

    Please do not make requests for copies of radio programming software which is sold (or was sold) by the manufacturer for any monetary value. All requests will be deleted and a forum infraction issued. Making a request such as this is attempting to engage in software piracy and this forum cannot be involved or associated with this activity. The same goes for any private transaction via Private Message. Even if you attempt to engage in this activity in PM's we will still enforce the forum rules. Your PM's are not private and the administration has the right to read them if there's a hint to criminal activity.

    If you are having trouble legally obtaining software please state so. We do not want any hurt feelings when your vague post is mistaken for a free request. It is YOUR responsibility to properly word your request.

    To obtain Motorola software see the Sticky in the Motorola forum.

    The various other vendors often permit their dealers to sell the software online (i.e., Kenwood). Please use Google or some other search engine to find a dealer that sells the software. Typically each series or individual radio requires its own software package. Often the Kenwood software is less than $100 so don't be a cheapskate; just purchase it.

    For M/A Com/Harris/GE, etc: there are two software packages that program all current and past radios. One package is for conventional programming and the other for trunked programming. The trunked package is in upwards of $2,500. The conventional package is more reasonable though is still several hundred dollars. The benefit is you do not need multiple versions for each radio (unlike Motorola).

    This is a large and very visible forum. We cannot jeopardize the ability to provide the RadioReference services by allowing this activity to occur. Please respect this.

CDM1250 Selective Calling Programming

Not open for further replies.


Aug 25, 2010
Hi, I have been pulling my hair out trying to figure out a way to accomplish something. Any help you can give would be greatly appreciated. I have a fleet of buses each with a CDM1250 installed as well as a CDM1250 at our dispatch office. I am trying to figure out a way to set things up so that the drivers will not be disturbed with radio chatter. We are finding that drivers are turning down the volume on their radios, or worse yet, changing channels to avoid hearing all of the traffic on our frequency. I would like to use MDC-1200 selective calling to allow the dispatchers to selectively call a specific bus. That's pretty straight forward. Where it gets kind of weird is this, upon receiving a selective call, I would like the drivers response to also be a selective call back to base so that other drivers do not have to hear either side of the conversation. I would also like like to silence the selective call alert tone that sounds every time a radio receives a selective call. I know that you can turn this off in the radio's menu, but I would like to keep the alert tone enabled for MDC call alerts. From what I can tell, it's either all or nothing as far as silencing tones goes. I would like to give the drivers an option to monitor all of the traffic if desired, perhaps by changing to a different channel that has OR Rx signaling squelch instead of AND. Maybe I'm going about this all wrong. Suggestions? Thanks.


Jul 25, 2007
You could assign a different selective call tone for each different bus, so other drivers will not hear anything unless their tone is sent out.
Not open for further replies.