| 810F | Ruggedized enclosure to meet MIL-STD-810F standards. |
| AC | AC Adapter: An AC Adapter with mating connector is provided. Intended for bench testing. |
| Ant | GPS Antenna: High Performance GPS Antenna for harsh RF Environments. |
| B | Parallel BCD Output: CMOS compatible, 5-volt logic in parallel four-line format is accessible through a rear-mounted D-sub connector. |
| Display | .4" LED Display: Six digit 0.4" red LED display for Airborne units. |
| F | Fuse: A panel mounted fuse is supplied. An internally mounted fuse is standard. |
| HQ-Out | "Have Quick" Time Code Output: A "Have Quick" Output is provided. This Option meets the ICD-GPS-060 standard. |
| Jam | IRIG-B Jam Sync Input |
| Moto | Motorola Output: This Output is from the GPS receiver. It contains latitude, longitude and altitude information as well as time code information. |
| NMEA1 | The NMEA GPZDA (Time & Date) output is provided. The NMEA GPZDA output replaces the standard RS-232C Format A output. |
| OR | Orange Powder Coat Enclosure |
| SMPTE/EBU | SMPTE or EBU Time Code outputs: SMPTE or EBU Time Code outputs may be specified (not available with IRIG). |
| TTL | IRIG-B TTL Output: via panel mounted BNC connector |