From the manufacturer

Serial GPS Receiver BC-SGPS

GPS Module Kit. The BC-SGPS provides a GPS signal/location in time to a Uniden scanner that does not have access to a GPS source (internal or external). You can connect this module kit directly to a scanner or CB radio or to a converter unit (included). The converter unit connects the GPS unit to scanners with USB, DB9, or other custom jacks.

Provides GPS location data for Uniden Scanners and CB Radios, including BCD436HP, BCD536HP, HomePatrol-1, HomePatrol-2, SDS100, SDS200, BCD996T / BCD996XT / BCD996P2, BCT15 / BCT15X, BC346XT, BCD325P2, BCD396T / BCD396XT, and Bear Tracker 885 CB Radio.
The included cables allow for easy connection.
Universal Serial GPS Receiver.
Use for Automatic Packet Reporting System (APRS).
Replaces the BC-GPSK Accessory

Provides GPS location data for Uniden Scanners and CB Radios, including BCD436HP, BCD536HP, HomePatrol-1, HomePatrol-2, SDS100, SDS200, BCD996T / BCD996XT / BCD996P2, BCT15 / BCT15X, BC346XT, BCD325P2, BCD396T / BCD396XT, and Bear Tracker 885 CB Radio.