[time-nuts] ESE ES-185A GPS Master Clock

[Gregory Beat]

Ohio eBay reseller selling items from an old television/ recording station estate.
He has dropped the initial price for this GPS Master Clock, and is accepting offers.

ESE ES-185A GPS Master Clock (used), eBay auction number: 264676519970

The ESE ES-185A Master Clock is an older model.  The Full Manual, with parts list, ppc board layouts, and schematics can be found here:
http://www.drivehq.com/file/df.aspx/shareID3748302/fileID591944211

The ES-185A Master Clock used a Motorola GPS receiver (appears to be Oncore 8-channel).
The Rear Panel has Multiple outputs, time code formats, 10 MHz, and BCD.

ES-185A used the Maxim (former Dallas) DS87C520 is main processor (MCS-51 family).
https://datasheets.maximintegrated.com/en/ds/DS83C520-DS87C520.pdf
ESE historically used 8051 (MCS-51) firmware for their products (time code displays, etc.)

Greg, w9gb
chicago