• 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.

SFR Simple Frequency Repeater, DCDM ERDM, Motorola R2 , Hytera MD785i/HM785

TothG

Newbie
Joined
Nov 9, 2024
Messages
1
In the case of Motorola R2 radios, what is the difference between ERDM and DCDM, and are they both for transmitting and receiving on the same frequency, only on a different timeslot? unfortunately, Motorola did not give much information about this. I would like to build and program an SFR simplex repeater. This device is a Hytera MD785i / HM785. And to connect Motorola R2 radios to this SFR repeater, presumably using DCDM. Is this the correct solution for such a system?
1.DCDM no color code but two timeslothytera_md785i_schema_b.png
2. ERDM two color code and two timeslotScreenshot_2024-11-08-14-10-41-772_com.mi.globalbrowser-edit.jpg
 
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