Ant	GPS Antenna: High Performance GPS Antenna for harsh RF Environments.
HR	Relay Contact Closure: A contact closure occurs at the top of each Hour. Hour and 1/2 Hour closure may be ordered on some products. Relay contacts are rated at 10-Watts maximum load, 500mA maximum switching current.
J	220 VAC/50 Hz Operation: The unit is configured to operate from 220 VAC line voltage. 117 VAC 50/60 Hz is standard.
K	Provides a 10 MHz output and a 1 KHz output.