• 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.

GR900 hang time

Not open for further replies.


Aug 24, 2005

Just bought a GR900 VHF repeater, and I'm having a hard time getting the logic to work properly. The controller is a ELN4570, which is manufactured by Mobicom for Motorola.
The logic board is configured by dip switches which controls hang time, service modes, talk out timer and so on.

We have tried two different ELN4570's and moving the dip switches makes no difference on any of them. This leads me to believe there is a confirmation setting or something of the sorts we are missing...as if we need to confirm the settings controlled by the switches before they take effect.

Has anyone played around with this repeater or the logic board? I feel 12 seconds hang time is a bit much...
Not open for further replies.