New Radioshack PRO-649 / PRO-650 / PRO-651 and PRO-652 software compatibility:

All versions of the ARC404 and ARC500 software packages are compatible with the new Radioshack scanner models that were released spring 2014.

Please refer to this table:

ARC404 is compatible with the PRO-649, PRO-650, PRO-404 and PRO-405 and the GRE PSR100 and PSR200.
ARC500 is compatible with the PRO-651, PRO-652, PRO-106, PRO-197, GRE PSR500, GRE PSR600, Whistler 1040 and Whistler 1060 digital scanners.

The free demo software that is included with the Radioshack 20-549 USB programming cable is also fully compatible with the new scanners.

Please refer to this table to select the correct software:

For the PRO-649 select the PRO-404 / ARC404 software
For the PRO-650 select the PRO-405 / ARC404 software
For the PRO-651 select the PRO-106 / ARC500 software
For the PRO-652 select the PRO-197 / ARC500 software