The Test Product Family is a series of equipment used by communication and telemetry engineers to test communication links and system components such as bit synchronizers, modems and digital multiplexers. There are multiple products that include a standard Bit Error Rate Tester (BERT) as well as a Data Link Test Set (DLTS).

Our newest addition to the family is the AL6500 Data Link Test Instrument. This unit is modular like the rest of the Apogee Product Families, but is also portable so it can be used in the field for on-site trouble shooting.