On my Motorola RDM2070d which is positive and which is negative?

Check your battery contacts. Clean with a pencil eraser. If this does not solve the problem described then your radio is in need of repair.

they are available on eBay for $6.00
you can look online there are several vendors.

google Motorola RDM2070d antenna

good luck

yes

yes you can

https://www.motorolasolutions.com/content/dam/msi/docs/business/products/two-way_radios/mobile_radios/_documents/rdx_series_two-way_radios_user_guide_rdu2080d-rdv2080d-rdu4160d.pdf

Contact Motorola Solutions


portal motorolasolutions com
Mark
Motorola Mobility Support

The Motorola CP110 MURS VHF is a nearly identical radio. Most 2 watt programmable VHF radios are programmable to the MURS frequencies.

You will need the RLN6303 RDX Radio to Radio Cloning Cable, or two drop-in chargers, or the multi-unit charge tray. Instructions for cloning are on page 51 of the user guide: http://www.weatherconnection.com/manuals/RDV5100.pdf Best regards.

Here is a link to the CP100 user manual, it is the sister radio to the XTN, and programs the same way. http://www.thekidshuttle.com/ABC%20Docs/CP100_Manual.pdf
Refer to the bottom of page 20 to get started programming.

Basically you hold in the PTT and the MON button while turning the radio on. Continue to hold them in until it stops making noise. This puts you in programming mode, and you can use the menu button and the + and - to walk you through reprogramming the radio.

We do not know specifically how your RDM2070d radio is programmed. You would need to know this to program your XTN to match. However, a good educated guess would be to start with Blue dot and Green dot frequencies off of the frequency chart in the user manual listed above. An educated guess on the code setting would be "zero" or "off".

Your radio dealer who supplied the RDM2070d radios to your corporation should be able to tell you the exact frequency and code; or read-out the radio.

The RDM2070D is non-programmable. It operated on pre-selected frequencies. (This radio belongs to a major corporation, and is not intended for use outside their company.)