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IRIG-E Waveform The IRIG-E signal is an amplitude modulated 100 Hz audio carrier. The output level is adjustable from 2 to 3 volts peak to peak, and the input will accept levels between 150mV and 3V peak to peak. The code contains 26 bits of BCD time-of-year information in days, hours, minutes, and seconds, with 10 ms resolution. The time code recycles yearly. The IRIG-E signal can be recorded and then played back on magnetic tape, transmitted over the air, or fed to another 9300 using a twisted pair. I sync a unit in my ham shack to the HP Z3801A's PECL 1 PPS timing signal and then drive a second unit in my house over a twisted pair using IRIG-E. |