Posting for a friend (jhickstein@gmail.com).  I've used this 8164 to provide PPS discipline to some NTP source that really needed it, long enough ago that I forget which source, and didn't even know what a disciplined oscillator was.  I've also seen the 8170 running, also before the phase-shifting. "Free to a good home: Spectracom 8164 WWVB-disciplined 10mHz reference, and Spectracom 8170 WWVB time receiver/decoder, with special antennas.  Both need modification to use the new WWVB phase-shift format.  You pay freight, or pick up in St. Paul, MN. Disposal by Sept 15 2025 or they go to FreeGeek." > -- Jeff Woolsey {woolsey,jlw}@{jlw,jxh}.com first.last@{gmail,jlw}.com Spum bad keming. Nature abhors a straight antenna, a clean lens, and empty storage. "Delete! Delete! OK!" -Dr. Bronner on disk space management "Card sorting, Joel." -me, re Solitaire