Symmetricom TrueTime XL-AK GPS Disciplined 10Mhz Low Phase Noise OCXO Oscillator [Used]

Tested/Guaranteed • OCXO Oscillator • 10MHz Low Phase Noise GPSDO • 4x 10MHz BNC Ports • RS-485 Option • Test Antenna & Rack Ears Included • 1PPS • IRIG-B

Photos show the actual item for sale

A used XL-AK GPS Disciplined Clock/Frequency/Pulse Generator. It has the OCXO based low phase noise quad 10MHz output option installed. The photos show the actual item for sale. The clock shows the correct time and date and the internal Lithium battery for maintaining settings has just been replaced with a fresh cell - so it should be good for a number of years now. Note that one vertical line of pixels in the display doesn't function - see photos. Also the serial port is the optional RS-485 type so a converter will be needed if you want to communicate with a PC's RS-232 port. Full product details may be found in the User Manual at https://www.prostudioconnection.net/1311/XL-AK_Manual.pdf . A basic puck antenna is included to allow you to test the unit immediately upon receipt. For a permanent installation and accurate time/frequency generation a professional grade outdoor antenna with a clear view of the sky will be required. I can provide a recommendation if required - the antenna voltage is 5V so almost any professional grade outdoor antenna can be used. The LCD display does have a backlight.

Description

The rack-mount XL-AK GPS receiver provides ultra-precise time and frequency. This configurable instrument provides timing outputs to within 40 nanoseconds rms of UTC/USNO and frequency outputs accurate to less than 1x10-12, even when tracking satellites with Selective Availability (SA) implemented. User-configurable outputs provide significant flexibility in configuring the XL-AK as a central source for IRIG time codes or output pulses.